1PS2016B 02/22/00
PI74FCT374T/534T/574T
(25ΩΩ
ΩΩ
Ω Series) P174FCT2374T/2574T
Octal D Registers (3-State)
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Product Description:
Pericom Semiconductors PI74FCT series of logic circuits are pro-
duced in the Companys advanced 0.6/0.8 micron CMOS technology,
achieving industry leading speed grades. All PI74FCT2XXX devices
have a built-in 25 ohm series resistor on all outputs to reduce noise
resulting from reflections, thus eliminating the need for an external
terminating resistor.
The PI74FCT374T/534T/574T and P174FCT2374T/2574T are
8-bit wide octal registers designed with eight D-type flip-flops with
a buffered common clock and buffered 3-state outputs. When
output enable (OE) is LOW, the outputs are enabled. When OE is
HIGH, the outputs are in the high impedance state. Input data
meeting the setup and hold time requirements of the D inputs is
transferred to the O outputs on the LOW-to-HIGH transition of the
clock input.
Device models available upon request.
PI74FCT374/2374T and PI74FCT574/2574T Logic Block Diagram
PI74FCT534T Logic Block Diagram
Product Features:
PI74FCT374/534/574/2374/2574T is pin compatible with bipolar
FAST Series at a higher speed and lower power
consumption
25Ω series resistor on all outputs (FCT2XXX only)
TTL input and output levels
Low ground bounce outputs
Extremely low static power
Hysteresis on all inputs
Industrial operating temperature range: 40°C to +85°C
Packages available:
 20-pin 173 mil wide plastic TSSOP (L)
 20-pin 300 mil wide plastic DIP (P)
 20-pin 150 mil wide plastic QSOP (Q)
 20-pin 150 mil wide plastic TQSOP (R)
 20-pin 300 mil wide plastic SOIC (S)
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Fast CMOS Octal D
Registers (3-State)
PI74FCT374T/534T/574T
(25ΩΩ
ΩΩ
Ω Series) PI74FCT2374T/2574T
D
Q
D
0
O
0
CP
CP
OE
D
Q
D
1
O
1
CP D
Q
D
2
O
2
CP D
Q
D
3
O
3
CP D
Q
D
4
O
4
CP D
Q
D
5
O
5
CP D
Q
D
6
O
6
CP D
Q
D
7
O
7
CP
D
Q
D
0
O
0
CP
CP
OE
D
Q
D
1
O
1
CP D
Q
D
2
O
2
CP D
Q
D
3
O
3
CP D
Q
D
4
O
4
CP D
Q
D
5
O
5
CP D
Q
D
6
O
6
CP D
Q
D
7
O
7
CP
2PS2016B 02/22/00
PI74FCT374T/534T/574T
(25ΩΩ
ΩΩ
Ω Series) P174FCT2374T/2574T
Octal D Registers (3-State)
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Inputs Outputs Internal
Function OE CP DNONQN
High-Z H L X Z NC
HHX Z NC
Load Register L ↑LH L
L↑HL H
H↑LZ L
H↑HZ H
PI74FCT534T Truth Table(1)
Product Pin Description
PI74FCT374/2374T Product Pin Configuration
PI74FCT534T Product Pin Configuration
PI74FCT574/2574T Product Pin Configuration
Inputs Outputs Internal
Function OE CP DNONQN
High-Z H L X Z NC
HHX Z NC
Load Register L ↑LL H
L↑HH L
H↑LZ H
H↑HZ L
PI74FCT374/574/2374/2574T Truth Table(1)
1. H = High Voltage Level
L = Low Voltage Level
X = Dont Care
Z = High Impedance
NC = No Change
↑= LOW-to-HIGH transition
Pin Name Description
OE Output Enable Input (Active LOW)
CP Clock Pulse for the register. Enters data on
LOW-to-HIGH transition
D0-D7Data Inputs
O0-O73-State Outputs (true)
O0-O73-State Outputs (inverted)
GND Ground
VCC Power
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
O
0
D
0
D
1
O
1
O
2
D
2
D
3
O
3
GND
Vcc
O
7
D
7
D
6
O
6
O
5
D
5
D
4
O
4
CP
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
O
0
D
0
D
1
O
1
O
2
D
2
D
3
O
3
GND
Vcc
O
7
D
7
D
6
O
6
O
5
D
5
D
4
O
4
CP
20-PIN
L20
P20
Q20
R20
S20
20-PIN
L20
P20
Q20
R20
S20
20-PIN
L20
P20
Q20
R20
S20
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE
D
0
D
1
D
2
D
3
D
4
D
5
D
6
D
7
GND
Vcc
O
0
O
1
O
2
O
3
O
4
O
5
O
6
O
7
CP
3PS2016B 02/22/00
PI74FCT374T/534T/574T
(25ΩΩ
ΩΩ
Ω Series) P174FCT2374T/2574T
Octal D Registers (3-State)
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ................................................................. 65°C to +150°C
Ambient Temperature with Power Applied ................................. -40°C to +85°C
Supply Voltage to Ground Potential (Inputs & Vcc Only) .......... 0.5V to +7.0V
Supply Voltage to Ground Potential (Outputs & D/O Only) ....... 0.5V to +7.0V
DC Input Voltage ......................................................................... 0.5V to +7.0V
DC Output Current ................................................................................... 120 mA
Power Dissipation ......................................................................................... 0.5W
Note:
Stresses greater than those listed under
MAXIMUM RATINGS may cause permanent
damage to the device. This is a stress rating
only and functional operation of the device at
these or any other conditions above those
indicated in the operational sections of this
specification is not implied. Exposure to
absolute maximum rating conditions for
extended periods may affect reliability.
DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 5.0V ± 5%)
Parameters Description Test Conditions(1) Min. Typ(2) Max. Units
VOH Output HIGH Voltage VCC = Min., VIN = VIH or VIL IOH = 15.0 mA 2.4 3.0 V
VOL Output LOW Current VCC = Min., VIN = VIH or VIL IOL = 64 mA 0.3 0.55 V
VOL Output LOW Current VCC = Min., VIN = VIH or VIL IOL = 12 mA (25Ω Series) 0.3 0.50 V
VIH Input HIGH Voltage Guaranteed Logic HIGH Level 2.0 V
VIL Input LOW Voltage Guaranteed Logic LOW Level 0.8 V
IIH Input HIGH Current VCC = Max. VIN = VCC 1µA
IIL Input LOW Current VCC = Max. VIN = GND 1 µA
IOZH High Impedance VCC = MAX.VOUT = 2.7V 1 µA
IOZL Output Current VOUT = 0.5V 1 µA
VIK Clamp Diode Voltage VCC = Min., IIN = 18 mA 0.7 1.2 V
IOFF Power Down Disable VCC = GND, VOUT = 4.5V 100 µA
IOS Short Circuit Current VCC = Max.(3), VOUT = GND 60 120 mA
VHInput Hysteresis 200 mV
Capacitance (TA = 25°C, f = 1 MHz)
Parameters(4) Description Test Conditions Typ Max. Units
CIN Input Capacitance VIN = 0V 6 10 pF
COUT Output Capacitance VOUT = 0V 8 12 pF
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at Vcc = 5.0V, +25°C ambient and maximum loading.
3. Not more than one output should be shorted at one time. Duration of the test should not exceed one second.
4. This parameter is determined by device characterization but is not production tested.
4PS2016B 02/22/00
PI74FCT374T/534T/574T
(25ΩΩ
ΩΩ
Ω Series) P174FCT2374T/2574T
Octal D Registers (3-State)
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Power Supply Characteristics
Parameters Description Test Conditions(1) Min. Typ(2) Max. Units
ICC Quiescent Power VCC = Max. VIN = GND or VCC 0.1 500 µA
Supply Current
∆ICC Supply Current per VCC = Max. VIN = 3.4V(3) 0.5 2.0 mA
Input @ TTL HIGH
ICCD Supply Current per VCC = Max., VIN = VCC 0.15 0.25 mA/
Input per MHz(4) Outputs Open VIN = GND MHz
OE = GND
One Input Toggling
50% Duty Cycle
ICTotal Power Supply VCC = Max., VIN = VCC 1.5 3.5(5) mA
Current(6) Outputs Open VIN = GND
fCP = 10 MHZ
50% Duty Cycle VIN = 3.4V 2.0 5.5(5)
OE = GND VIN = GND
fI = 5 MHZ
One Bit Toggling
VCC = Max., VIN = VCC 3.8 7.3(5)
Outputs Open VIN = GND
fCP = 10 MHZ
50% Duty Cycle VIN = 3.4V 6.0 16.3(5)
OE = GND VIN = GND
Eight Bits Toggling
fI = 2.5 MHZ
50% Duty Cycle
Notes:
1. For conditions shown as Max. or Min., use appropriate value specified under Electrical Characteristics for the applicable device.
2. Typical values are at Vcc = 5.0V, +25°C ambient.
3. Per TTL driven input (VIN = 3.4V); all other inputs at Vcc or GND.
4. This parameter is not directly testable, but is derived for use in Total Power Supply Calculations.
5. Values for these conditions are examples of the Icc formula. These limits are guaranteed but not tested.
6. IC =IQUIESCENT + IINPUTS + IDYNAMIC
IC = ICC + ∆ICC DHNT + ICCD (fCP/2 + fINI)
ICC = Quiescent Current
∆ICC = Power Supply Current for a TTL High Input (VIN = 3.4 V)
DH = Duty Cycle for TTL Inputs High
NT = Number of TTL Inputs at DH
ICCD = Dynamic Current Caused by an Input Transition Pair (HLH or LHL)
fCP = Clock Frequency for Register Devices (Zero for Non-Register Devices)
fI = Input Frequency
NI = Number of Inputs at fI
All currents are in milliamps and all frequencies are in megahertz.
5PS2016B 02/22/00
PI74FCT374T/534T/574T
(25ΩΩ
ΩΩ
Ω Series) P174FCT2374T/2574T
Octal D Registers (3-State)
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PI74FCT374/2374T Switching Characteristics over Operating Range
374T/2374T 374AT/2374AT 374CT/2374CT 374DT/2374DT
Com. Com. Com. Com.
Parameters Description Conditions
(1)
Min Max Min Max Min Max Min Max Units
t
PLH
Propagation Delay C
L
= 50 pF 2.0 10.0 2.0 6.5 2.0 5.2 2.0 4.5 ns
t
PHL
CP to O
N
R
L
= 500Ω
t
PZH
Output Enable Time 1.5 12.5 1.5 6.5 1.5 5.5 1.5 5.5 ns
t
PZL
OE to O
N
t
PHZ
Output Disable Time
(3)
1.5 8.0 1.5 5.5 1.5 5.0 1.5 5.0 ns
t
PLZ
OE to O
N
t
SU
Setup Time HIGH or 2.0 2.0 2.0 2.0 ns
LOW, D
N
to CP
t
H
Hold Time HIGH or 1.5 1.5 1.5 1.0 ns
LOW, D
N
to CP
t
W
CP Pulse Width
(3)
7.0 5.0 5.0 3.0 ns
HIGH or LOW
PI74FCT534T Switching Characteristics over Operating Range
534T 534AT 534CT 534DT
Com. Com. Com. Com.
Parameters Description Conditions
(1)
Min Max Min Max Min Max Min Max Units
t
PLH
Propagation Delay C
L
= 50 pF 2.0 10.0 2.0 6.5 2.0 5.2 2.0 4.5 ns
t
PHL
CP to O
N
R
L
= 500Ω
t
PZH
Output Enable Time 1.5 12.5 1.5 6.5 1.5 5.5 1.5 5.5 ns
t
PZL
OE to O
N
t
PHZ
Output Disable Time
(3)
1.5 8.0 1.5 5.5 1.5 5.0 1.5 5.0 ns
t
PLZ
OE to O
N
t
SU
Setup Time HIGH or 2.0 2.0 2.0 2.0 ns
LOW, D
N
to CP
t
H
Hold Time HIGH or 1.5 1.5 1.5 1.0 ns
LOW, D
N
to CP
t
W
CP Pulse Width
(3)
7.0 5.0 5.0 3.0 ns
HIGH or LOW
Notes:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
6PS2016B 02/22/00
PI74FCT374T/534T/574T
(25ΩΩ
ΩΩ
Ω Series) P174FCT2374T/2574T
Octal D Registers (3-State)
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PI74FCT574/2574T Switching Characteristics over Operating Range
574T/2574T 574AT/2574AT 574CT/2574CT 574DT
Com. Com. Com. Com.
Parameters Description Conditions
(1)
Min Max Min Max Min Max Min Max Unit
t
PLH
Propagation Delay C
L
= 50 pF 2.0 8.5 2.0 6.5 2.0 5.2 2.0 4.5 ns
t
PHL
CP to O
N
R
L
= 500Ω
t
PZH
Output Enable Time 1.5 10.0 1.5 6.5 1.5 5.5 1.5 5.5 ns
t
PZL
OE to O
N
t
PHZ
Output Disable Time
(3)
1.5 6.5 1.5 5.5 1.5 5.0 1.5 5.0 ns
t
PLZ
OE to O
N
t
SU
Setup Time HIGH or 2.0 2.0 2.0 2.0 ns
LOW, D
N
to CP
t
H
Hold Time HIGH or 1.5 1.5 1.5 1.0 ns
LOW, D
N
to CP
t
W
CP Pulse Width
(3)
7.0 5.0 5.0 3.0 ns
HIGH or LOW
Notes:
1. See test circuit and wave forms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. This parameter is guaranteed but not production tested.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com