SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
D
Inputs Are TTL-Voltage Compatible
D
Schmitt-Trigger Circuitry On A, B, and CLR
Inputs for Slow Input Transition Rates
D
Edge Triggered From Active-High or
Active-Low Gated Logic Inputs
D
Retriggerable for Very Long Output Pulses
D
Overriding Clear Terminates Output Pulse
D
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
description/ordering information
These edge-triggered multivibrators feature
output pulse-duration control by three methods. In
the first method, the A input is low , and the B input
goes high. In the second method, the B input is
high, and the A input goes low. In the third method,
the A input is low , the B input is high, and the clear
(CLR) input goes high.
The output pulse duration is programmed by
selecting external resistance and capacitance
values. The external timing capacitor must be
connected between Cext and Rext/Cext (positive)
and an external resistor connected between
Rext/Cext and VCC. To obtain variable pulse
durations, connect an external variable resistance
between Rext/Cext and VCC. The output pulse
duration also can be reduced by taking CLR low.
ORDERING INFORMATION
TAPACKAGE†ORDERABLE
PART NUMBER TOP-SIDE
MARKING
PDIP – N Tube SN74AHCT123AN SN74AHCT123AN
SOIC D
Tube SN74AHCT123AD
AHCT123A
40°Cto85°C
SOIC
–
D
Tape and reel SN74AHCT123ADR
AHCT123A
–
40°C
to
85°C
SSOP – DB Tape and reel SN74AHCT123ADBR HB123A
TSSOP – PW Tape and reel SN74AHCT123APWR HB123A
TVSOP – DGV Tape and reel SN74AHCT123ADGVR HB123A
CDIP – J Tube SNJ54AHCT123AJ SNJ54AHCT123AJ
–55°C to 125°CCFP – W Tube SNJ54AHCT123AW SNJ54AHCT123AW
LCCC – FK Tube SNJ54AHCT123AFK SNJ54AHCT123AFK
†Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright 2003, Texas Instruments Incorporated
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SN54AHCT123A ...J OR W PACKAGE
SN74AHCT123A . . . D, DB, DGV, N, OR PW PACKAGE
(TOP VIEW)
SN54AHCT123A . . . FK PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
1A
1B
1CLR
1Q
2Q
2Cext
2Rext/Cext
GND
VCC
1Rext/Cext
1Cext
1Q
2Q
2CLR
2B
2A
3212019
910111213
4
5
6
7
8
18
17
16
15
14
1Cext
1Q
NC
2Q
2CLR
1CLR
1Q
NC
2Q
2Cext
1B
1A
NC
2A
2B V
1R
2R GND
NC CC
NC – No internal connection
ext/Cext
ext/Cext
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
2POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
description/ordering information(continued)
Pulse triggering occurs at a particular voltage level and is not directly related to the transition time of the input
pulse. The A, B, and CLR inputs have Schmitt triggers with sufficient hysteresis to handle slow input transition
rates with jitter-free triggering at the outputs.
Once triggered, the basic pulse duration can be extended by retriggering the gated low-level-active (A) or
high-level-active (B) input. Pulse duration can be reduced by taking CLR low . CLR input can be used to override
A or B inputs. The input/output timing diagram illustrates pulse control by retriggering the inputs and early
clearing.
The variance in output pulse duration from device to device typically is less than ±0.5% for given external timing
components. An example of this distribution for the ’AHCT123A is shown in Figure 10. V ariations in output pulse
duration versus supply voltage and temperature are shown in Figure 6.
During power up, Q outputs are in the low state, and Q outputs are in the high state. The outputs are glitch free,
without applying a reset pulse.
For additional application information on multivibrators, see the application report, Designing With the
SN74AHC123A and SN74AHCT123A, literature number SCLA014.
FUNCTION TABLE
(each multivibrator)
INPUTS OUTPUTS
CLR A B Q Q
L X X L H
XHXL
†H†
XXLL
†H†
H L ↑
H
#
H
↑L H
†These outputs are based on the
assumption that the indicated
steady-state conditions at the A and
B inputs have been set up long enough to
complete any pulse started before the
setup.
logic diagram, each multivibrator (positive logic)
CLR
Cext
Rext/Cext
R
B
A
Q
Q
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
input/output timing diagram
A
B
CLR
Q
Q
twtwtw + trr
trr
Rext/Cext
absolute maximum ratings over operating free-air temperature (unless otherwise noted)†
Supply voltage range, VCC (see Note 1) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 2) –0.5 V to 7 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, VO (see Note 1) –0.5 V to VCC + 0.5 V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0) –20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC) ±20 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC) ±25 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND ±50 mA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance, θJA (see Note 3): D package 73°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DB package 82°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DGV package 120°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
N package 67°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package 108°C/W. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg –65°C to 150°C. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
†Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only , and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may af fect device reliability.
NOTES: 1. Voltage values are with respect to the network ground terminal.
2. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
3. The package thermal impedance is calculated in accordance with JESD 51-7.
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
4POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
recommended operating conditions (see Note 4)
SN54AHCT123A SN74AHCT123A
UNIT
MIN MAX MIN MAX
UNIT
VCC Supply voltage 4.5 5.5 4.5 5.5 V
VIH High-level input voltage 2 2 V
VIL Low-level input voltage 0.8 0.8 V
VIInput voltage 0 5.5 0 5.5 V
VOOutput voltage 0 VCC 0 VCC V
IOH High-level output current –8–8 mA
IOL Low-level output current 8 8 mA
Rext External timing resistance 1k 1k Ω
∆t/∆VCC Power-up ramp rate 1 1 ms/V
TAOperating free-air temperature –55 125 –40 85 °C
NOTE 4: Unused Rext/Cext terminals should be left unconnected. All remaining unused inputs of the device must be held at VCC or GND to ensure
proper device operation. Refer to the TI application report, Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C SN54AHCT123A SN74AHCT123A
UNIT
PARAMETER
TEST
CONDITIONS
V
CC MIN TYP MAX MIN MAX MIN MAX
UNIT
VOH
IOH = –50
m
A
45V
4.4 4.5 4.4 4.4
V
V
OH IOH = –8 mA
4
.
5
V
3.94 3.8 3.8
V
VOL
IOL = 50
m
A
45V
0.1 0.1 0.1
V
V
OL IOL = 8 mA
4
.
5
V
0.36 0.5 0.44
V
Rext/Cext†VI = VCC or GND 5.5 V ±0.25 ±2.5 ±2.5
IIA, B,
and CLR VI = VCC or GND 0 V to 5.5 V ±0.1 ±1* ±1
m
A
ICC Quiescent VI = VCC or GND, IO = 0 5.5 V 4 40 40
m
A
ICC Active state
(per circuit) VI = VCC or GND,
Rext/Cext = 0.5 VCC 5.5 V 560 750 975 975
m
A
∆ICC‡One input at 3.4 V, Other
inputs at VCC or GND 5.5 V 1.35 1.5 1.5 mA
CiVI = VCC or GND 5 V 1.9 10 10 pF
* On products compliant to MIL-PRF-38535, this parameter is not production tested at VCC = 0 V.
†This test is performed with the terminal in the off-state condition.
‡This is the increase in supply current for each input at one of the specified TTL voltage levels rather than 0 V or VCC.
timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
TEST CONDITIONS
TA = 25°C SN54AHCT123A SN74AHCT123A
UNIT
TEST
CONDITIONS
MIN TYP MAX MIN MAX MIN MAX
UNIT
t
Pulse CLR 5 5 5
ns
t
wduration A or B trigger 5 5 5
ns
t
Pulse retrigger time
Rext = 1 kΩ, Cext = 100 pF §60 § § ns
t
rr
P
u
l
se re
t
r
i
gger
ti
me Rext = 1 kΩ, Cext = 0.01
m
F§1.5 § §
m
s
§See retriggering data in the application information section.
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
VCC = 5 V ±0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TEST
T
A
= 25°CSN54AHCT123A SN74AHCT123A
UNIT
PARAMETER
FROM
TO
TEST
A
UNIT
PARAMETER
(INPUT) (OUTPUT) CONDITIONS MIN TYP MAX MIN MAX MIN MAX
UNIT
tPLH
A B
QQ
CL=15
p
F
5.3* 10* 1* 13* 1 11
ns
tPHL
A
or
B
Q
or
Q
C
L =
15
pF
5.3* 10* 1* 13* 1 11
ns
tPLH
CLR
QQ
CL=15
p
F
7.7* 12* 1* 15* 1 13
ns
tPHL
CLR
Q
or
Q
C
L =
15
pF
7.7* 12* 1* 15* 1 13
ns
tPLH
CLR ti
QQ
CL=15
p
F
8* 13* 1* 16* 1 14
ns
tPHL
CLR
t
r
i
gger
Q
or
Q
C
L =
15
pF
8* 13* 1* 16* 1 14
ns
tPLH
A B
QQ
CL=50
p
F
6.8 11 1 14 1 12
ns
tPHL
A
or
B
Q
or
Q
C
L =
50
pF
6.8 11 1 14 1 12
ns
tPLH
CLR
QorQ
CL=50
p
F
9.2 13 1 16 1 14
ns
tPHL
CLR
Q
or
Q
C
L =
50
pF
9.2 13 1 16 1 14
ns
tPLH
CLR ti
QQ
CL=50
p
F
9.5 14 1 17 1 15
ns
tPHL
CLR
t
r
i
gger
Q
or
Q
C
L =
50
pF
9.5 14 1 17 1 15
ns
†
CL = 50 pF,
Cext = 28 pF,
Rext = 2 kΩ133 200 240 240 ns
tw
†
Q or Q CL = 50 pF,
Cext = 0.01 µF,
Rext = 10 kΩ90 100 110 90 110 90 110
m
s
CL = 50 pF,
Cext = 0.1 µF,
Rext = 10 kΩ0.9 1 1.1 0.9 1.1 0.9 1.1 ms
∆tw‡±1 %
* On products compliant to MIL-PRF-38535, this parameter is not production tested.
†tw = Pulse duration at Q and Q outputs
‡∆tw = Output pulse-duration variation (Q and Q) between circuits in same package
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER TEST CONDITIONS TYP UNIT
Cpd Power dissipation capacitance No load 29 pF
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
6POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
NOTES: A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: ZO = 50 Ω, tr
+
3 ns, tf
+
3 ns.
C. The outputs are measured one at a time with one input transition per measurement.
50% VCC
tPLH
tPHL
VOH
VOL
3 V
50% VCC
1.5 V
3 V
Input A
(see Note B) 1.5 V 0 V
0 V
In-Phase
Output
Out-of-Phase
Output
VOLTAGE WAVEFORMS
DELAY TIMES
Input B
(see Note B)
VOL
VOH
LOAD CIRCUIT
Test
Point
CL
(see Note A)
From Output
Under Test
50% VCC
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
3 V
0 V
50% VCC
Input CLR
(see Note B)
Out-of-Phase
Output
In-Phase
Output
VOLTAGE WAVEFORMS
DELAY TIMES
50% VCC
50% VCC
1.5 V 1.5 V
3 V
0 V
tw
VOLTAGE WAVEFORMS
PULSE DURATION
Inputs 1.5 V1.5 V
VOH
Outputs 50% VCC
50% VCC
VOL
Figure 1. Load Circuit and Voltage Waveforms
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
caution in use
To prevent malfunctions due to noise, connect a high-frequency capacitor between VCC and GND, and keep
the wiring between the external components and Cext and Rext/Cext terminals as short as possible.
power-down considerations
Large values of Cext may cause problems when powering down the ’AHCT123A devices because of the amount
of energy stored in the capacitor. When a system containing this device is powered down, the capacitor may
discharge from VCC through the protection diodes at pin 2 or pin 14. Current through the input protection diodes
must be limited to 30 mA; therefore, the turn-off time of the VCC power supply must not be faster than
t = VCC × Cext/30 mA. For example, if VCC = 5 V and Cext = 15 pF, the VCC supply must turn off no faster than
t = (5 V) ×(15 pF)/30mA = 2.5 ns. Usually , this is not a problem because power supplies are heavily filtered and
cannot discharge at this rate. When a more rapid decrease of VCC to zero occurs, the ’AHCT123A devices may
sustain damage. To avoid this possibility, use external clamping diodes.
output pulse duration
The output pulse duration, tw, is determined primarily by the values of the external capacitance (CT) and timing
resistance (RT). The timing components are connected as shown in Figure 2.
VCC
RT
CT
To Rext/Cext
Terminal To Cext
Terminal
Figure 2. Timing-Component Connections
The pulse duration is given by:
tw
+
K
RT
CT
if CT is ≥1000 pF, K = 1.0 or
if CT is < 1000 pF, K can be determined from Figure 5
where:
tw= pulse duration in ns
RT= external timing resistance in kΩ
CT= external capacitance in pF
K = multiplier factor
Equation 1 and Figure 3 can be used to determine values for pulse duration, external resistance, and external
capacitance.
(1)
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
8POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION
retriggering data
The minimum input retriggering time (tMIR) is the minimum time required after the initial signal before retriggering
the input. After tMIR, the device retriggers the output. Experimentally, it also can be shown that to retrigger the
output pulse, the two adjacent input signals should be tMIR apart, where tMIR = 0.30 × tw. The retrigger pulse
duration is calculated as shown in Figure 3.
tMIR
tRT
tPLH tw
Input
Output
tRT = tw + tPLH = (K × RT × CT) + tPLH
Where:
tMIR = Minimum Input Retriggering Time
tPLH = Propagation Delay
tRT = Retrigger Time
tw= Output Pulse Duration Before Retriggering
Figure 3. Retrigger Pulse Duration
The minimum value from the end of the input pulse to the beginning of the retriggered output should be
approximately 15 ns to ensure a retriggered output (see Figure 4).
Input
Output
tMRT= Minimum Time Between the End of the Second Input Pulse and the Beginning of the Retriggered Output
tMRT= 15 ns
tMRT
Figure 4. Input/Output Requirements
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
9
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION†
11010
2103104105106107
1.00E+00
1.00E+01
1.00E+02
1.00E+03
1.00E+04
1.00E+05
1.00E+06
1.00E+07
1.00E+08
1.00E+09
CT – External Timing Capacitance – pF
Output Pulse Duration – ns
w
RT = 1k Ω
RT = 5k Ω
RT = 10k Ω
RT = 80k Ω
RT = 150k Ω
RT = 200k Ω
VCC = 5 V
TA = 25°C
t–
Figure 5. Output Pulse Duration vs External Timing Capacitance
tw = 866 ns at:
VCC = 5 V,
RT = 10 kΩ
CT = 50 pF
TA = 25°C
–60 –40 –20 0 20 40 60 80 100 120 140 160
VCC = 2.5 V
VCC = 3 V
VCC = 3.5 V
VCC = 4 V
VCC = 5 V
VCC = 6 V
VCC = 7 V
180
–6%
–4%
–2%
0%
2%
4%
6%
8%
10%
12%
14%
Temperature – °C
Variation in Output Pulse Duration
Figure 6. Variations in Output Pulse Duration vs Temperature
†Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
SN54AHCT123A, SN74AHCT123A
DUAL RETRIGGERABLE MONOSTABLE MULTIVIBRATORS
SCLS420G – JUNE 1998 – REVISED APRIL 2003
10 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
APPLICATION INFORMATION†
Figure 7
MINIMUM TRIGGER TIME
vs
VCC CHARACTERISTICS
RT = 1 kΩ
TA = 25°C
10.00
0
1.00
0.10
0.01 123456
CT = 0.01 µF
CT = 1000 pF
CT = 100 pF
VCC – Supply Voltage – V
Minimum Retrigger Time– µs
rr – t
Figure 8
1.20
1.15
1.10
1.05
1.00
0.95
0.901.5 2 2.5 3 3.5 4 4.5 5 5.5 6
RT = 10 kΩ
TA = 25°C
tW = K ×CT ×RT
VCC – Supply Voltage – V
OUTPUT PULSE-DURATION CONSTANT
vs
SUPPLY VOLTAGE
Output Pulse-Duration Constant – K
CT = 1000 pF
CT = 0.01 µF
CT = 0.1 µF
Figure 9
1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50
0.00001
0.0001
0.001
TA = 25°C
VCC = 5 V
For Capacitor Values of
0.001 µF or Greater,
K = 1.0
(K is Independent of R)
Multiplier Factor – K
EXTERNAL CAPACITANCE
vs
MULTIPLIER FACTOR
CT– External Capacitor V alue – µF
Figure 10
tw – Output Pulse Duration
Relative Frequency of Occurance
DISTRIBUTION OF UNITS
vs
OUTPUT PULSE DURATION
Mean = 856 ns
Median = 856 ns
Std. Dev. = 3.5 ns
VCC = 5 V
TA = 25°C
CT = 50 pF
RT = 10 k
W
–3 Std. Dev. +3 Std. Dev.
Median
99% of Data Units
†Operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied.
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 1
PACKAGING INFORMATION
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
5962-9861601Q2A ACTIVE LCCC FK 20 1 TBD Call TI Call TI
5962-9861601QEA ACTIVE CDIP J 16 1 TBD Call TI Call TI
5962-9861601QFA ACTIVE CFP W 16 1 TBD Call TI Call TI
74AHCT123ADGVRE4 ACTIVE TVSOP DGV 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
74AHCT123ADGVRG4 ACTIVE TVSOP DGV 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123AD ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADBR ACTIVE SSOP DB 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADBRE4 ACTIVE SSOP DB 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADBRG4 ACTIVE SSOP DB 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADE4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADG4 ACTIVE SOIC D 16 40 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADGVR ACTIVE TVSOP DGV 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADR ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADRE4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123ADRG4 ACTIVE SOIC D 16 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123AN ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74AHCT123ANE4 ACTIVE PDIP N 16 25 Pb-Free (RoHS) CU NIPDAU N / A for Pkg Type
SN74AHCT123APWR ACTIVE TSSOP PW 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SN74AHCT123APWRE4 ACTIVE TSSOP PW 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 2
Orderable Device Status (1) Package Type Package
Drawing Pins Package Qty Eco Plan (2) Lead/
Ball Finish MSL Peak Temp (3) Samples
(Requires Login)
SN74AHCT123APWRG4 ACTIVE TSSOP PW 16 2000 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM
SNJ54AHCT123AFK ACTIVE LCCC FK 20 1 TBD POST-PLATE N / A for Pkg Type
SNJ54AHCT123AJ ACTIVE CDIP J 16 1 TBD A42 N / A for Pkg Type
SNJ54AHCT123AW ACTIVE CFP W 16 1 TBD A42 N / A for Pkg Type
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that
lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and package, or 2) lead-based die adhesive used between
the die and leadframe. The component is otherwise considered Pb-Free (RoHS compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame retardants (Br or Sb do not exceed 0.1% by weight
in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information
provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and
continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals.
TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis.
OTHER QUALIFIED VERSIONS OF SN54AHCT123A, SN74AHCT123A :
•Catalog: SN74AHCT123A
•Military: SN54AHCT123A
PACKAGE OPTION ADDENDUM
www.ti.com 5-Sep-2011
Addendum-Page 3
NOTE: Qualified Version Definitions:
•Catalog - TI's standard catalog product
•Military - QML certified for Military and Defense Applications
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0
(mm) B0
(mm) K0
(mm) P1
(mm) W
(mm) Pin1
Quadrant
SN74AHCT123ADBR SSOP DB 16 2000 330.0 16.4 8.2 6.6 2.5 12.0 16.0 Q1
SN74AHCT123ADGVR TVSOP DGV 16 2000 330.0 12.4 6.8 4.0 1.6 8.0 12.0 Q1
SN74AHCT123ADR SOIC D 16 2500 330.0 16.4 6.5 10.3 2.1 8.0 16.0 Q1
SN74AHCT123APWR TSSOP PW 16 2000 330.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 1
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
SN74AHCT123ADBR SSOP DB 16 2000 367.0 367.0 38.0
SN74AHCT123ADGVR TVSOP DGV 16 2000 367.0 367.0 35.0
SN74AHCT123ADR SOIC D 16 2500 333.2 345.9 28.6
SN74AHCT123APWR TSSOP PW 16 2000 367.0 367.0 35.0
PACKAGE MATERIALS INFORMATION
www.ti.com 14-Jul-2012
Pack Materials-Page 2
MECHANICAL DATA
MPDS006C – FEBRUAR Y 1996 – REVISED AUGUST 2000
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
DGV (R-PDSO-G**) PLASTIC SMALL-OUTLINE
24 PINS SHOWN
14
3,70
3,50 4,90
5,10
20
DIM
PINS **
4073251/E 08/00
1,20 MAX
Seating Plane
0,05
0,15
0,25
0,50
0,75
0,23
0,13
112
24 13
4,30
4,50
0,16 NOM
Gage Plane
A
7,90
7,70
382416
4,90
5,103,70
3,50
A MAX
A MIN
6,60
6,20
11,20
11,40
56
9,60
9,80
48
0,08
M
0,07
0,40
0°–8°
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side.
D. Falls within JEDEC: 24/48 Pins – MO-153
14/16/20/56 Pins – MO-194
MECHANICAL DATA
MSSO002E – JANUARY 1995 – REVISED DECEMBER 2001
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
DB (R-PDSO-G**) PLASTIC SMALL-OUTLINE
4040065 /E 12/01
28 PINS SHOWN
Gage Plane
8,20
7,40
0,55
0,95
0,25
38
12,90
12,30
28
10,50
24
8,50
Seating Plane
9,907,90
30
10,50
9,90
0,38
5,60
5,00
15
0,22
14
A
28
1
2016
6,50
6,50
14
0,05 MIN
5,905,90
DIM
A MAX
A MIN
PINS **
2,00 MAX
6,90
7,50
0,65 M
0,15
0°–ā8°
0,10
0,09
0,25
NOTES: A. All linear dimensions are in millimeters.
B. This drawing is subject to change without notice.
C. Body dimensions do not include mold flash or protrusion not to exceed 0,15.
D. Falls within JEDEC MO-150
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