ST2329B
2-bit dual supply level translator without direction control pin, open
drain output
Datasheet - production data
Power-down mode feature: when either supply
is OFF, all I/Os are in high impedance
Low quiescent current (max. 4 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: QFN8
(1.4 x 1.2 x 0.55 mm) package
Applications
QFN8
(1.4 x 1.2 x 0.55 mm)
Low-voltage system level translation
Mobile phones and other mobile devices
I2C level translation
UART level translation
Features
18 Mbps (max.) data rate when driven by
a totem pole driver
6.8 Mbps (max.) data rate when driven by an
open drain pole driver
Bi-directional level translation without direction
control pin
Table 1. Device summary
Order code
Package
Packing
Package
topmark
ST2329BQTR
QFN8
(1.4 x 1.2 x
0.55 mm)
Tape and
reel (3000
parts per
reel)
3A
Wide VL voltage range of 1.65 to 3.6 V
Wide VCC voltage range of VL to 5.5 V
February 2013
This is information on a product in full production.
DocID023359 Rev 3
1/23
www.st.com
1
Contents
ST2329B
Contents
1
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1
Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3
Device block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4
Supplementary notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
5
4.1
Driver requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.2
Load driving capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.3
Power-off feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.4
Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
6
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.1
DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
6.2
AC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2.1
Device driven by open drain driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
6.2.2
Device driven by totem pole driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
7
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
8
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
9
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
2/23
DocID023359 Rev 3
ST2329B
List of tables
List of tables
Table 1.
Table 2.
Table 3.
Table 4.
Table 5.
Table 6.
Table 7.
Table 8.
Table 9.
Table 10.
Table 11.
Table 12.
Table 13.
Table 14.
Table 15.
Table 16.
Table 17.
Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
DC characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
AC characteristics - test conditions: VL = 1.65 - 1.8 V
(device driven by open drain driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
AC characteristics - test conditions: VL = 2.5 - 2.7 V
(device driven by open drain driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AC characteristics - test conditions: VL = 2.7 - 3.6 V
(device driven by open drain driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
AC characteristics - test conditions: VL = 1.65 - 1.8 V
(device driven by totem pole driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
AC characteristics - test conditions: VL = 2.5 - 2.7 V
(device driven by totem pole driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
AC characteristics - test conditions: VL = 2.7 - 3.6 V
(device driven by totem pole driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Test circuit switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Waveform symbol value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Mechanical data for QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 20
QFN8 carrier tape dimensions - 8 mm width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
DocID023359 Rev 3
3/23
List of figures
ST2329B
List of figures
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
4/23
Pin connection (top through view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Application block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Waveform - propagation delay (f = 1 MHz; 50% duty cycle). . . . . . . . . . . . . . . . . . . . . . . . 17
Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle) . . . . . . . . . . . . . 18
Package outline for QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 20
QFN8 carrier tape - 8 mm width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
QFN8 reel for carrier tape - 8 mm width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
DocID023359 Rev 3
ST2329B
1
Description
Description
The ST2329B device 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 a transmission gate-based
design that allows bi-directional level translation without a control pin.
The ST2329B device accepts 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 tristate output mode which can be used to disable all I/Os.
The ST2329B device supports power-down mode when VCC is grounded/floating and the
device is disabled via the OE pin.
DocID023359 Rev 3
5/23
Pin settings
ST2329B
2
Pin settings
2.1
Pin connection
Figure 1. Pin connection (top through view)
$0 Y
2.2
Pin description
Table 2. Pin description
6/23
Pin number
Symbol
Name and function
1
VL
Supply voltage
2
I/OVL1
Data input/output
3
I/OVL2
Data input/output
4
GND
Ground
5
OE
Output enable
6
I/OVCC2
Data input/output
7
I/OVCC1
Data input/output
8
VCC
Supply voltage
DocID023359 Rev 3
ST2329B
3
Device block diagrams
Device block diagrams
Figure 2. Block diagram
1. When OE is LOW, all I/Os are in high-impedance mode.
2. The ST2329BQTR has 2 channels. For simplicity, the diagram above shows only 1 channel.
Figure 3. Application block diagram
DocID023359 Rev 3
7/23
Supplementary notes
ST2329B
4
Supplementary notes
4.1
Driver requirements
The ST2329BQTR may be driven by an open drain or totem pole driver and the nature of
the device output is “open drain”. It must not be used to drive a pull-down resistor as the
impedance of the output at HIGH state depends on the pull-up resistor placed at the 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 = 5.5 V, VL = 4.3 V, and the pull-up resistor is 10 k, then the driver must
be able to sink at least (5.5 V / 10 k) + (4.3 V / 10 k) 1 mA and still meet the VIL
requirements of the ST2329BQTR.
4.2
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 state. In this case, the resistive
load is not recommended.
4.3
Power-off feature
In some applications where it may be required to turn off one of the power supplies
powering up the level translator, the user can turn off the VCC only when the OE pin is low
(device is disabled). There is 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.
4.4
Truth table
Table 3. Truth table
Enable
Bi-directional input/output
OE
H
I/OVCC
(1)
(2)
H
H(1)
H(1)
L
L
L
Z(3)
Z(3)
1. High level VL power supply referred.
2. High level VCC power supply referred.
3. Z = high-impedance.
8/23
I/OVL
DocID023359 Rev 3
ST2329B
5
Maximum rating
Maximum rating
Stressing the device above the rating listed in Table 4: Absolute maximum ratings may
cause permanent damage to the device. These are stress ratings only, and operation of the
device at these or any other conditions above those indicated in Table 5: Recommended
operating conditions of this specification is not implied. Exposure to absolute maximum
rating conditions for extended periods may affect device reliability.
Table 4. Absolute maximum ratings
Symbol
Parameter
Value
Unit
VL
Supply 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
-0.3 to VL + 0.3
V
-0.3 to VCC + 0.3
V
DC input diode current
-20
mA
II/OVL
DC output current
±25
mA
II/OVCC
DC output current
±25
mA
40
mA
VI/OVL
VI/OVCC
IIK
DC I/OVL input voltage (OE = GND or VL)
DC I/OVCC input voltage (OE = GND or VL)
ISCTOUT Short-circuit duration, continuous
PD
Power dissipation(1)
500
mW
TSTG
Storage temperature
-65 to 150
°C
Lead temperature (10 seconds)
300
°C
Electrostatic discharge protection (HBM)
±2
kV
TL
ESD
1. 500 mW: 65 oC derated to 300 mW by 10 mW / °C: 65 °C to 85 °C.
Recommended operating conditions
Table 5. Recommended operating conditions
Symbol
Parameter
Min.
Typ.
Max.
Unit
VL
Supply voltage
1.65
3.6
V
VCC
Supply voltage
VL
5.5
V
VOE
Input voltage
(OE output enable pin, VL power supply referred)
0
3.6
V
I/OVL voltage
0
VL
V
I/OVCC voltage
0
VCC
V
VI/OVL
VI/OVCC
Top
Operating temperature
-40
85
°C
dt/dV
Input rise and fall time
0
1
ns/V
DocID023359 Rev 3
9/23
Electrical characteristics
ST2329B
6
Electrical characteristics
6.1
DC characteristics
Over recommended operating conditions unless otherwise noted. All typical values are at
TA = 25 °C.
Table 6. DC characteristics
Value
Symbol
Parameter
VL
VCC
TA = 25 oC
Test conditions
Min.
VIHL
VILL
VIHC
VILC
VIH-OE
10/23
High level input
voltage (I/OVL)
Low level input
voltage (I/OVL)
High level input
voltage (I/OVCC)
Low level input
voltage (I/OVCC)
High level input
voltage (OE)
-40 to 85 oC Unit
Typ. Max.
Min.
Max.
1.65
1.4
1.4
2.0
1.6
1.6
2.0
2.0
3.0
2.4
2.4
3.6
2.8
2.8
1.65
0.3
0.3
2.0
0.4
0.4
0.5
0.5
3.0
0.6
0.6
3.6
0.8
0.8
1.8
1.6
1.6
2.5
2.3
2.3
2.7
2.7
3.3
3.3
4.3
3.5
3.5
5.5
4.2
4.2
2.5
2.5
1.65 to VCC
VL to 5.5
VL to 5.5
3.0
3.6
1.65 - 2.5
3 - 5.5
0.3
2.7 - 3.6
3.6 - 5.5
0.5
1.65
1.0
1.0
2.0
1.2
1.2
1.4
1.4
3.0
1.6
1.6
3.6
2.0
2.0
2.5
VL to 5.5
DocID023359 Rev 3
V
V
V
V
V
ST2329B
Electrical characteristics
Table 6. DC characteristics (continued)
Value
Symbol
Parameter
VL
VCC
TA = 25 oC
Test conditions
Min.
VIL-OE
Low level input
voltage (OE)
-40 to 85 oC Unit
Typ. Max.
Min.
Max.
1.65
0.33
0.33
2.0
0.40
0.40
0.50
0.50
3.0
0.60
0.60
3.6
0.75
0.75
2.5
VL to 5.5
V
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
Only pull-up
VL to 5.5 resistor
connected to I/O
3
3.5
4
µA
IQVL
Quiescent
supply current
VL
1.65 to 3.6
only pull-up
VL to 5.5 resistor
connected to I/O
0.01
0.1
1
µA
1.65 to 3.6
OE = GND;
VL to 5.5 only pull-up
resistor
connected to I/O
3
3.5
4
µA
1.65 to 3.6
OE = GND;
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
IZ-VL
High impedance
quiescent
supply current
VL
DocID023359 Rev 3
11/23
Electrical characteristics
ST2329B
6.2
AC characteristics
6.2.1
Device driven by open drain driver
Load CL = 15 pF; RUP = 4.7 k; driver tR = tF ≤ 6 ns over temperature range -40 °C to
85 °C.
Table 7. AC characteristics - test conditions: VL = 1.65 - 1.8 V (device driven by open drain driver)
VCC = 1.8 - 2.5 V
Symbol
VCC = 2.7 - 3.6 V
VCC = 4.3 - 5.5 V
Parameter
Unit
Min.
Max.
Min.
Max.
Min.
Max.
tRVCC
Rise time I/OVCC
80.0
60.0
45.0
ns
tFVCC
Fall time I/OVCC
23.2
33.9
53.3
ns
tRVL
Rise time I/OVL
60.0
45.0
35.0
ns
tFVL
Fall time I/OVL
16.4
17.6
16.9
ns
Propagation delay time
tI/OVL-VCC I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH
3.4
2.0
2.0
ns
tPHL
13.9
19.1
30.2
ns
Propagation delay time
tI/OVCC-VL I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-LH
tPLH
2.0
2.0
2.6
ns
tPHL
8.6
9.0
9.5
ns
En
10
10
10
ns
Dis
40
40
40
ns
1.8
2.2
3.4
MHz
tPZL
tPLZ
Output enable and
disable time
DR
Data 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%.
12/23
DocID023359 Rev 3
ST2329B
Electrical characteristics
Table 8. AC characteristics - test conditions: VL = 2.5 - 2.7 V (device driven by open drain driver)
VCC = 2.7 - 3.6 V
Symbol
VCC = 4.3 - 5.5 V
Parameter
Unit
Min.
Max.
Min.
Max.
tRVCC
Rise time I/OVCC
70.0
50.0
ns
tFVCC
Fall time I/OVCC
14.8
19.1
ns
tRVL
Rise time I/OVL
50.0
35.0
ns
tFVL
Fall time I/OVL
9.8
10.0
ns
Propagation delay time
tI/OVL-VCC I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH
2.0
2.0
ns
tPHL
8.2
11.6
ns
Propagation delay time
tI/OVCC-VL I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-LH
tPLH
2.0
2.0
ns
tPHL
5.3
5.9
ns
En
6
6
ns
Dis
40
40
ns
2.2
3.0
MHz
tPZL
tPLZ
Output enable and
disable time
DR
Data 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%.
Table 9. AC characteristics - test conditions: VL = 2.7 - 3.6 V (device driven by open drain driver)
VCC = 4.3 - 5.5 V
Symbol
Parameter
Unit
Min.
Max.
tRVCC
Rise time I/OVCC
55.0
ns
tFVCC
Fall time I/OVCC
17.2
ns
tRVL
Rise time I/OVL
40.0
ns
tFVL
Fall time I/OVL
9.7
ns
Propagation delay time
tI/OVL-VCC I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH
2.0
ns
tPHL
10.6
ns
Propagation delay time
tI/OVCC-VL I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH
2.0
ns
tPHL
4.8
ns
En
6
ns
Dis
40
ns
3.0
MHz
tPZL
tPLZ
Output enable and disable time
DR
Data 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%.
DocID023359 Rev 3
13/23
Electrical characteristics
6.2.2
ST2329B
Device driven by totem pole driver
Load CL = 15 pF; RUP = 10 k; driver tR = tF ≤ 6 ns over temperature range -40 °C to
85 °C.
Table 10. AC characteristics - test conditions: VL = 1.65 - 1.8 V
(device driven by totem pole driver)
VCCB = 1.8 - 2.5 V VCCB = 2.7 - 3.6 V VCCB = 4.3 - 5.5 V
Symbol
Parameter
Unit
Min.
Max.
Min.
Max.
Min.
Max.
tRVCC
Rise time I/OVCC
11.2
6.9
2.0
ns
tFVCC
Fall time I/OVCC
23.2
33.9
43.9
ns
tRVL
Rise time I/OVL
8.7
8.6
8.5
ns
tFVL
Fall time I/OVL
16.4
17.6
16.9
ns
tI/OVLVCC
tI/OVCCVL
Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPLH
6.5
4.5
4.1
ns
tPHL
13.9
19.1
30.2
ns
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH
4.5
4.6
4.0
ns
tPHL
8.6
9.0
9.5
ns
En
15
15
20
ns
Dis
40
40
40
ns
6.4
4.5
3.4
MHz
tPZL
tPLZ
Output enable and
disable time
DR
Data 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%.
14/23
DocID023359 Rev 3
ST2329B
Electrical characteristics
Table 11. AC characteristics - test conditions: VL = 2.5 - 2.7 V (device driven by totem pole driver)
VCC = 2.7 - 3.6 V
Symbol
VCC = 4.3 - 5.5 V
Parameter
Unit
Min.
Max.
Min.
Max.
tRVCC
Rise time I/OVCC
6.9
4.0
ns
tFVCC
Fall time I/OVCC
14.8
19.1
ns
tRVL
Rise time I/OVL
5.3
5.6
ns
tFVL
Fall time I/OVL
9.8
10.0
ns
tPLH
3.2
3.1
ns
tPHL
8.2
11.6
ns
tPLH
2.6
2.2
ns
tPHL
5.3
5.9
ns
En
8
12
ns
Dis
40
40
ns
9
6.8
MHz
tI/OVL-VCC
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tI/OVCC-VL
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPZL
tPLZ
DR
Output enable and
disable time
Data
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%.
Table 12. AC characteristics - test conditions: VL = 2.7 - 3.6 V (device driven by totem pole driver)
VCC = 4.3 - 5.5 V
Symbol
Parameter
Unit
Min.
Max.
tRVCC
Rise time I/OVCC
4.3
ns
tFVCC
Fall time I/OVCC
17.2
ns
tRVL
Rise time I/OVL
4.5
ns
tFVL
Fall time I/OVL
9.7
ns
tPLH
2.7
ns
tI/OVL-VCC
Propagation delay time
I/OVL-LH to I/OVCC-LH
I/OVL-HL to I/OVCC-HL
tPHL
10.6
ns
Propagation delay time
I/OVCC-LH to I/OVL-LH
I/OVCC-HL to I/OVL-HL
tPLH
1.9
ns
tI/OVCC-VL
tPHL
4.8
ns
En
7
ns
Dis
40
ns
7.2
MHz
tPZL
tPLZ
Output enable and disable time
DR
Data 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%.
DocID023359 Rev 3
15/23
Electrical characteristics
ST2329B
Figure 4. Test circuit
9/
9/ 9&&
5XS
3XOVH
JHQHUDWRU
9&&
5XS
'87
9/
9&&
23(1
*1'
&/
&69
Table 13. Test circuit switches
Switch
Test
tPLH, tPHL
16/23
Driving I/OVL
Driving I/OVCC
Open drain driving
Open
Open
Open
DocID023359 Rev 3
ST2329B
7
Waveforms
Waveforms
Table 14. Waveform symbol value
Driving I/OVCC
Driving I/OVL
Symbol
1.8 V ≤ VL ≤ VCC ≤ 3.3 V ≤ VL ≤ VCC ≤ 1.8 V ≤ VL ≤ VCC ≤ 3.3 V ≤ VL ≤ VCC ≤
2.5 V
5.0 V
2.5 V
5.0 V
VIH
VL
VL
VCC
VCC
VIM
50% VL
50% VL
50% VCC
50% VCC
VOM
50% VCC
50% VCC
50% VL
50% VL
Figure 5. Waveform - propagation delay (f = 1 MHz; 50% duty cycle)
DocID023359 Rev 3
17/23
Waveforms
ST2329B
Figure 6. Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle)
18/23
DocID023359 Rev 3
ST2329B
8
Package mechanical data
Package mechanical data
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK® packages, depending on their level of environmental compliance. ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK is an ST trademark.
DocID023359 Rev 3
19/23
Package mechanical data
ST2329B
Figure 7. Package outline for QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch
'$780$
$
7(50,1$/
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'$780%
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$0 9
1. Dimension b applies to the metallized terminal and is measured between 0.10 and 0.20 mm from the
terminal tip. If the terminal has the optional radius on the other end of the terminal, dimension b should not
be measured in that radius area.
2. Applied only for terminals.
3. Bilateral coplanarity zone applies to the exposed heatsink slug as well as the terminals.
4. Dimensions and tolerancing conform to ASME Y14.5M - 1994.
Table 15. Mechanical data for QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch
Dimensions (mm)
Symbol
Note
Min.
Nom.
Max.
A
0.50
0.55
0.60
A1
0.00
-
0.05
b
0.15
0.20
0.25
(1)
B
0
-
12°
(2)
e
0.40 BSC
N
8
L
0.25
0.30
(3)
0.35
1. Dimension b applies to the metallized terminal and is measured between 0.10 and 0.20 mm
from the terminal tip. If the terminal has the optional radius on the other end of the terminal,
dimension b should not be measured in that radius area.
2. All dimensions are in millimeters, B is in degrees.
3. N is the total number of terminals.
20/23
DocID023359 Rev 3
ST2329B
Package mechanical data
Figure 8. QFN8 carrier tape - 8 mm width
1. Measured from centerline of sprocket hole to centerline of pocket.
2. Cumulative tolerance of 10 sprocket holes is ± 0.20.
3. Measured from centerline of sprocket hole to centerline of pocket.
4. Other material available.
5. Typical SR of form tape max. 10° /SR.
6. All dimensions are in millimeters unless otherwise stated.
Table 16. QFN8 carrier tape dimensions - 8 mm width
Carrier tape
Symbol
Ao
Bo
Ko
F
P1
W
Dimensions
1.52 ± 0.05
1.52 ± 0.05
0.73 ± 0.05
3.50 ± 0.05
4.00 ± 0.10
8.00 ± 0.10
Figure 9. QFN8 reel for carrier tape - 8 mm width
DocID023359 Rev 3
21/23
Revision history
9
ST2329B
Revision history
Table 17. Document revision history
22/23
Date
Revision
Changes
25-Jun-2012
1
Initial release.
03-Aug-2012
2
Updated Section 6.2.1, Section 6.2.2, Table 10, Table 11, and
Table 12, added carrier tape (Figure 8 and Table 16).
18-Feb-2013
3
Updated document status (production data).
Minor corrections throughout document.
DocID023359 Rev 3
ST2329B
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