Preliminary Data
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to
change without noti ce.
July 2008 Rev 1 1/23
23
ST2329A
2-bit dual supply level translator
without direction control pin
Features
■90 Mbps (max) data rate when driven by a
totem pole driver
■8 Mbps (max) data rate when driven by an
open drain pole driver
■Bidirectional level translation without
direction control pin
■Wide VL voltage range of 1.65 to 3.6 V
■Wide VCC voltage range of 1.80 to 5.5 V
■Power down mode feature – when either
supply is off, all I/Os are in high impedance
■Low quiescent curren t (max 12 µA)
■Able to be driven by totem pole and open drain
drivers
■5.5 V tolerant enable pin
■ESD performance on all pins: ±2 kV HBM
■Small package and footprint:
QFN10L (1.8 x 1.4 mm) package
Applications
■Low voltage system level translat ion
■Mobile phones and other mobile devices
■I2C level translation
■UART level translation
Description
The ST2329A is a 2-bit dual supply level
translator which provides the level shifting
capability to allow data transfer in a multi-voltage
system. Externally applied voltages, VCC and VL,
set the logic levels on either side of the device. It
utilizes transmission gate-based design that
allows bidirectional level translation without a
control pin.
The ST2329A accepts a VL from 1.65 to 3.6 V
and VCC from 1.80 to 5.5 V, making it ideal for
data transfer between low-voltage ASICs/PLD
and higher voltage systems. This device has a tri-
state output mode which can be used to disable
all I/Os.
The ST2329A supports pow er down mode when
VCC is grounded/floating and the device is
disabled via the OE pin.
QFN10L (1.8 x 1.4 mm)
Table 1. Device summary
Order code Package Packaging
ST2329AQTR QFN10L (1.8 x 1.4 mm) Tape and reel (30 00 parts per reel)
www.st.com
Contents ST2329A
2/23
Contents
1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2 Device block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 Supplementary notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.1 Driver requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.2 Load driving capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.3 Power off feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3.4 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
5.1 AC characteristics (device driven by open drain driver) . . . . . . . . . . . . . . 11
5.2 AC characteristics (device driven by totem pole driver ) . . . . . . . . . . . . . 13
6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
ST2329A List of tables
3/23
List of tables
Table 1. Device summary. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Table 3. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 5. Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Table 6. DC characteristics ( over recommended operating conditions unless otherwise noted. All typ-
ical values are at TA = 25 °C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 7. AC characteristics - test conditions: VL = 1.65 - 1.8 V (load CL=15pF; R
up =4.7kΩ; driver
tr = tf ≤ 2 ns) over temperature range -40 °C to 85 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 8. AC characteristics - test conditions: VL= 2.5 - 2.7 V (load CL=15pF; R
up =4.7kΩ; driver
tr = tf ≤ 2 ns) over temperature range -40 °C to 85 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 9. AC characteristics - test conditions: VL = 2.7 - 3.6 V (load CL=15pF; R
up =4.7kΩ; driver
tr = tf ≤ 2 ns) over temperature range -40 °C to 85 °C . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Table 10. AC characteristics (test conditions: VL= 1.65 - 1.8 V (load CL=15pF; R
up =10kΩ; driver
tr=tf ≤ 2 ns) over temperature range -40 °C to 85 °C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 11. AC characteristics (test conditions: VL= 2.5 - 2.7 V (load CL=15pF; R
up =10kΩ; driver
tr = tf ≤ 2 ns) over temperature range -40 °C to 85 °C) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 12. AC characteristics (test conditions: VL= 2.7 - 3.6 V (load CL=15pF; R
up =10kΩ; driver
tr = tf ≤ 2 ns) over temperature range -40 °C to 85 °C) . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 13. Test circuit switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 14. Waveform symbol value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 15. QFN10L (1.8 x 1.4 mm) mechanical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Table 16. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
List of figures ST2329A
4/23
List of figures
Figure 1. Pin connection (top through view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 2. ST2329A block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 3. Application block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Figure 4. Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 5. Waveform - propagation delay (f = 1 MHz; 50% duty cycle). . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 6. Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle) . . . . . . . . . . . . . 17
Figure 7. QFN10L (1.8 x 1.4 mm) package outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 8. QFN10L (1.8 x 1.4 mm) footprint recommendation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 9. QFN10L (1.8 x 1.4 mm) carrier tape. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 10. QFN10L (1.8 x 1.4 mm) reel information - back view . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Figure 11. QFN10L (1.8 x 1.4 mm) reel information - front side . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
ST2329A Pin settings
5/23
1 Pin settings
1.1 Pin connection
Figure 1. Pin connection (top through view)
1.2 Pin description
1
2
345
8
7
6
10 9
CS00011
VLVCC
I/OVCC1
I/OVCC2
I/OVL1
I/OVL2
OE
NC NC
GND
Table 2. Pin description
Pin number Symbol Name and function
1I/O
VL1 Data input/output
2I/O
VL2 Data input/output
3 OE Output en a ble
4 NC No connection
5 NC No connection
6 GND Ground
7 I/OVCC2 Data input/output
8 I/OVCC1 Data input/output
9V
CC Supply voltage
10 VLSupply voltage
Device block diagrams ST2329A
6/23
2 Device block diagrams
Figure 2. ST2329A block diagram
Figure 3. Application block diagram
= one-shot circuit
EN
I/O VL I/O VCC
ST2329A
VL VCC
GND GND
OE
VL
* ST2329A has 2 channels. For simplicity, the above diagram shows only 1 channel.
* When OE is Low, all I/Os are in High-Impedance mode.
AM00707V1
V
L
V
CC
OE
I/O
VL1
I/O
VCC1
I/O
VL2
I/O
VCC2
V
system
controller
V
system
controller
V
CC
V
CC
V
L
V
L
V
L
V
CC
0.1 μ
F
0.1 μ
F
1 μF
L
CC
AM00708V1
ST2329A Supplementary notes
7/23
3 Supplementary notes
3.1 Driver requirement
The ST2329A may be driven by an open drain or totem pole driver and the nature of the
device’s output is “open drain ”. It must not be used to drive a pull-down resistor since the
impedance of the output at HIGH state depends on the pull-up resistor placed at th e I/Os.
As the device has pull-up resistors on both the I/OVCC and I/OVL ports, the user needs to
ensure that the driver is able to sink the required amount of current. For example, if the
settings are VCC =5.5V, V
L= 4.3 V and the pull-u p resistor is 10 kΩ, then the driv er must be
able to sink at least (5.5 V/1 0 kΩ) + (4.3 V /10 kΩ)=1 mA and still meet the VIL
requirement s of the ST2329A.
3.2 Load driving capability
To support the open drain system, the one-shot transistor is turned on only during high
transition at the output side. When it drives a high state, after the one-shot transistor is
turned off, only the pull-up resistor is able to maintain the stat e. In this case, the resistive
load is not recommended.
3.3 Power off feature
In some applications where it might be required to turn off one of the pow er supplies
powering up the level translator, the user may turn off the VCC only when the OE pin is low
(device is disabled). There will be no current consumption in VL due to floating gates or
other causes, and the I/Os are in a high-impedance state in this mode.
3.4 Truth table
Table 3. Truth table
Enable Bidirectional Input/Output
OE I/OVCC I/OVL
H (1)
1. High level VL power supply referred
H (2)
2. High level VCC power supply referred
H(1)
H(1) L L
L Z
(3)
3. Z = high impedance
Z(3)
Maximum rating ST2329A
8/23
4 Maximum rating
Stressing the device above the r ating listed in the “Absolute maximum ratings” table may
cause permanent damage to the device. The se ar e stre ss ratings only, and oper ati on of t he
device at these or any other conditions above those indicated in the operating sections of
this specification is not implied. Exp osur e to abso lute maximum rating conditions for
extended periods may affect device reliability. Refer also to the STMicroelectronics SURE
Program and other relevant quality documents.
4.1 Recommended operating conditions
Table 4. Absolute maximum ratings
Symbol Parameter Value Unit
VLSupply voltage -0.3 to 4.6 V
VCC Supply voltage -0.3 to 6.5 V
VOE DC control input voltage -0.3 to 6.5 V
VI/OVL DC I/O VL input voltage (OE = GND or VL) -0.3 to VL + 0.3 V
VI/OVCC DC I/OVCC input voltage (OE = GND or VL) -0.3 to VCC + 0.3 V
IIK DC input diode current -20 mA
II/OVL DC output current ±25 mA
II/OVCC DC output current ±258 mA
ISCTOUT Short circuit duration, continuous 40 mA
PDPower dissipation(1)
1. 500mW: 65 oC derated to 300 mW by 10W/oC: 65 oC to 85 oC
500 mW
TSTG Storage temperature -65 to 150 oC
TL Lead temperature (10 seconds) 300 oC
ESD El ectrostatic discharge protection (HBM) ±2 kV
Table 5. Recommended operating conditions
Symbol Parameter Min Typ Max Unit
VLSupply voltage 1.65 3.6 V
VCC(1)
1. VCC must be greater than VL.
Supply voltage 1.8 5.5 V
VOE Input voltage
(OE output enable pin, VL power supply referred) 03.6V
VI/OVL I/OVL voltage 0 VLV
VI/OVCC I/OVCC voltage 0 VCC V
Top Operating temperature -40 85 oC
dt/dV Input rise and fall time (for 90 Mbps operation) 0 1 ns/V
ST2329A Electrical characteristics
9/23
5 Electrical characteristics
Table 6. DC characteristics (over recommended operating conditions unless otherwise noted. All
typical values are at TA = 25 oC)
Symbol Parameter
Test conditions Value
Unit
VLVCC
TA = 25 oC-40 to 85 oC
Min Typ Max Min Max
VIHL High lev el input
voltage (I/OVL)
1.65
VL to 5.5
1.4 1.4
V
2.0 1.6 1.6
2.5 2.0 2.0
3.0 2.4 2.4
3.6 2.8 2.8
VILL Low level input
voltage (I/OVL)
1.65
VL to 5.5
0.3 0.3
V
2.0 0.4 0.4
2.5 0.5 0.5
3.0 0.6 0.6
3.6 0.8 0.8
VIHC
High lev el input
voltage
(I/OVCC)
1.65 to
VCC
1.8 1.6 1.6
V
2.5 2.3 2.3
3.0 2.7 2.7
3.6 3.3 3.3
4.3 3.5 3.5
5.5 4.2 4.2
VILC
Low level input
voltage
(I/OVCC)
1.65 -
2.5 3 - 5.5 0.3 V
2.7 -
3.6 3.6 - 5.5 0.5
VIH-OE High lev el input
voltage (OE)
1.65
VL to 5.5
1.0 1.0
V
2.0 1.2 1.2
2.5 1.4 1.4
3.0 1.6 1.6
3.6 2.0 2.0
VIL-OE Low level input
voltage (OE)
1.65
VL to 5.5
0.33 0.33
V
2.0 0.40 0.40
2.5 0.50 0.50
3.0 0.60 0.60
3.6 0.75 0.75
Electrical characteristics ST2329A
10/23
Symbol Parameter
Test conditions Value
Unit
VLVCC
TA = 25 oC-40 to 85 oC
Min Typ Max Min Max
VOLL
Low level
output voltage
(I/OVL)
1.65 to
3.6 VL to 5.5 IO = 1.0 mA
I/OVCC ≤ 0.15 V 0.40 0.40 V
VOLC
Low level
output voltage
(I/OVCC)
1.65 to
3.6 VL to 5.5 IO = 1.0 mA
I/OVL ≤ 0.15 V 0.40 0.40 V
IOE
Control input
leakage current
(OE)
1.65 to
3.6 VL to 5.5 VOE = GND or
VL±0.1 ±0.1 µA
IIO_LKG
High
impedance
leakage current
(I/OVL, I/OVCC)
1.65 to
3.6 VL to 5.5 OE = GND ±0.1 ±0.1 µA
IQVCC
Quiescent
supply current
VCC
1.65 to
3.6 VL to 5.5 only pull-up
resistor
connected to I/O 35 12µA
IQVL
Quiescent
supply current
VL
1.65 to
3.6 VL to 5.5 only pull-up
resistor
connected to I/O 0.01 0.1 1 µA
IZ-VCC
High
impedance
quiescent
supply current
VCC
1.65 to
3.6 VL to 5.5
OE = GND;
only pull-up
resistor
connected to I/O
35 12µA
IZ-VL
High
impedance
quiescent
supply current
VL
1.65 to
3.6 VL to 5.5
OE = GND;
only pull-up
resistor
connected to I/O
0.01 0.1 1 µA
Table 6. DC characteristics (over recommended operating conditions unless otherwise noted. All
typical values are at TA = 25 oC) (continued)
ST2329A Electrical characteristics
11/23
5.1 AC characteristics (device driven by open drain driver)
Table 7. AC characteristics - test conditions: VL = 1.65 −1.8 V (load CL=15pF; R
up =4.7kΩ;
driver tr=t
f≤ 2 ns) ov er temperature range -40 °C to 85 °C
Symbol Parameter VCC =1.8−2.5 V VCC =2.7−3.6 V VCC =4.3−
5.5 V Unit
Min Max Min Max Min Max
tRVCC Rise time I/OVCC 85 65 40 ns
tFVCC Fall time I/OVCC 20 26 32 ns
tRVL Rise time I/OVL 80 50 30 ns
tFVL Fall time I/OVL 12 28 40 ns
tI/OVL-VCC
Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH 555ns
tPHL 91825ns
tI/OVCC-VL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-LH
tPLH 555ns
tPHL 13 14 14 ns
tPZL tPZH
tPLZ tPHZ
Output enable and
disab le time En 10 10 10 ns
Dis 40 40 40 ns
DRData rate(1) 1.6 2.5 4 MHz
1. The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O
signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.
Table 8. AC characteristics - test conditions: VL=2.5−2.7 V (load CL=15pF; R
up =4.7kΩ; driver
tr=t
f≤ 2 ns) over temperature range -40 °C to 85 °C
Symbol Parameter VCC =2.7 −3.6 V VCC =4.3− 5.5 V Unit
Min Max Min Max
tRVCC Rise time I/OVCC 75 45 ns
tFVCC Fall time I/OVCC 14 22 ns
tRVL Rise time I/OVL 70 40 ns
tFVL Fall time I/OVL 14 22 ns
tI/OVL-VCC Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH 22ns
tPHL 814ns
tI/OVCC-VL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-LH
tPLH 33ns
tPHL 78ns
Electrical characteristics ST2329A
12/23
Symbol Parameter VCC =2.7 −3.6 V VCC =4.3− 5.5 V Unit
Min Max Min Max
tPZL tPZH
tPLZ tPHZ
Output enable and
disable time En 6 6 ns
Dis 40 40 ns
DRData rate(1) 2.5 3.2 MHz
1. The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O
signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.
Table 9. AC characteris tics - test conditions: VL = 2.7 −3.6 V (load CL=15pF; R
up =4.7kΩ; driver
tr=t
f≤ 2 ns) over temperature range -40 °C to 85 °C
Symbol Parameter VCC = 4.3 − 5.5 V Unit
Min Max
tRVCC Rise time I/OVCC 55 ns
tFVCC Fa ll time I/OVCC 16 ns
tRVL Rise time I/OVL 55 ns
tFVL Fall ti me I/OVL 16 ns
tI/OVL-VCC
Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH 2ns
tPHL 7ns
tI/OVCC-VL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH 4ns
tPHL 6ns
tPZL tPZH
tPLZ tPHZ Output enable and disable time En 6 ns
Dis 40 ns
DRData rate(1) 2.8 MHz
1. The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O
signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.
Table 8. AC characteristics - test conditions: VL=2.5−2.7 V (load CL=15pF; R
up =4.7kΩ; driver
tr=t
f≤ 2 ns) over temperature range -40 °C to 85 °C
ST2329A Electrical characteristics
13/23
5.2 AC characteristics (device driven by totem pole driver )
Table 10. AC characteristics (test conditions: VL=1.65−1.8 V (load CL=15pF; R
up =10kΩ; dr iver
tr=tf ≤ 2 ns) over temperature range -40 °C to 85 °C)
Symbol Parameter VCCB =1.8–2.5V V
CCB =2.7–3.6V V
CCB =4.3–5.5V Unit
Min Max Min Max Min Max
tRVCC Rise time I/OVCC 734ns
tFVCC Fall time I/OVCC 14 6 6 ns
tRVL Rise time I/OVL 645ns
tFVL Fall time I/OVL 888ns
tI/OVL-
VCC
Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH 654ns
tPHL 888ns
tI/OVCC-
VL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH 654ns
tPHL 7 8 11 ns
tPZL tPZH
tPLZ tPHZ
Output enable and
disable time En 10 10 10 ns
Dis 40 40 40 ns
DRData rate(1)
1. The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O
signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.
12 32 32 MHz
Table 11. AC characteristics (test conditions: VL=2.5−2.7 V (load CL=15pF; R
up =10kΩ; driver
tr=t
f ≤ 2 ns) over temperature range -40 °C to 85 °C)
Symbol Parameter VCC =2.7 − 3.6 V VCC =4.3− 5.5 V Unit
Min Max Min Max
tRVCC Rise time I/OVCC 64ns
tFVCC Fall time I/OVCC 66ns
tRVL Rise time I/OVL 55ns
tFVL Fall time I/OVL 66ns
tI/OVL-VCC
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH 3.5 3
tPHL 66ns
tI/OVCC-VL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH 2.5 2.1 ns
ns
tPHL 66
ns
ns
Electrical characteristics ST2329A
14/23
Symbol Parameter VCC =2.7 −3.6 V VCC =4.3−5.5 V Unit
Min Max Min Max
tPZL tPZH
tPLZ tPHZ
Output enable and
disab le time En 6 6 ns
Dis 40 40 ns
DRData rate(1) 45 45 MHz
1. The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O
signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.
Table 11. AC characteristics (test conditions: VL=2.5−2.7 V (load CL=15pF; R
up =10kΩ; driver
tr=t
f ≤ 2 ns) over temperature range -40 °C to 85 °C) (continued)
Table 12. AC characteristics (test conditions: VL=2.7−3.6 V (load CL=15pF; R
up =10kΩ; driver
tr=t
f ≤ 2 ns) over temperature range -40 °C to 85 °C)
Symbol Parameter VCC =4.3−5.5 V Unit
Min Max
tRVCC Rise time I/OVCC 5ns
tFVCC Fall time I/OVCC 6ns
tRVL Rise time I/OVL 4ns
tFVL Fall time I/OVL 6ns
tI/OVL-VCC
Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH 2.5 ns
tPHL 6ns
tI/OVCC-VL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH 2ns
ns
tPHL 6ns
ns
tPZL tPZH
tPLZ tPHZ
Output enable and disable
time En 6 ns
Dis 40 ns
DRData rate(1) 45 MHz
1. The data rate is guaranteed based on the condition that the output I/O signal rise/fall time is less than 15% of the input I/O
signal period; the input I/O signal is at 50% duty cycle and the output I/O signal duty cycle deviation not less than 30%.
ST2329A Electrical characteristics
15/23
Figure 4. Test circuit
Table 13. Test circuit switches
Test Switch
Driving I /OVL Driving I/OVCC Open drain driving
tPLH, tPHL Open Open Open
CS14021
Pulse
generator
D.U.T
VLVCC
10 kΩ
VL
10 kΩ
VCC
CL
VL
VCC
OPEN
GND
Waveforms ST2329A
16/23
6 Waveforms
Figure 5. Waveform - propagation delay (f = 1 MHz; 50% duty cycle)
Table 14. Waveform symbol value
Symbol
Driving I/OVL Driving I/OVCC
1.8 V ≤ VL≤ VCC ≤
2.5 V 3.3 V ≤ VL≤ VCC ≤
5.0 V 1.8 V ≤ VL≤ VCC ≤
2.5 V 3.3V ≤ VL≤ VCC ≤
5.0 V
VIH VLVLVCC VCC
VIM 50% VL50% VL50% VCC 50% VCC
VOM 50% VCC 50% VCC 50% VL50% VL
VXVOL +0.15V VOL +0.3V V OL +0.15V V OL +0.3V
VYVOH -0.15V VOH -0.3V VOH -0.15V VOH -0.3V
ST2329A Waveforms
17/23
Figure 6. Waveform - output enable and disab le time (f = 1 MHz; 50% duty cycle)
Package mechanical data ST2329A
18/23
7 Package mechanical data
In order to meet environmental requirements, ST offers these devices in ECOPACK®
pac kages. These packages have a Lead-free second level interconnect. The category of
second level interconnect is marked on the pac kage and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings rela ted to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Figure 7. QFN10L (1.8 x 1.4 mm) package outline
7936408 Rev.D
ST2329A Package mechanical data
19/23
Table 15. QFN10L (1.8 x 1.4 mm) mechanical data
Symbol Millimeters
Typ Min Max
A 0.50 0.45 0.55
A1 0.02 0 0.05
A3 0.127
b 0.20 0.15 0.25
D 1.80 1.75 1.85
E 1.40 1.35 1.45
e 0.40
L 0.40 0.35 0.45
Figure 8. QFN10L (1.8 x 1.4 mm) footprint recommendation
Package mechanical data ST2329A
20/23
Figure 10. QFN10L (1.8 x 1.4 mm) reel information - back view
Figure 9. QFN10L (1.8 x 1.4 mm) carrier tape
ST2329A Package mechanical data
21/23
Figure 11. QFN10L (1.8 x 1.4 mm) reel information - front side
Revision history ST2329A
22/23
8 Revision history
Table 16. Document revision history
Date Revision Changes
16-Jul-2008 1 Initial release.
ST2329A
23/23
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