ST2329AQTR - STMicroelectronics, Inc.

March 2011 Doc ID 14907 Rev 3 1/24

ST2329A

2-bit dual supply level translator

without direction control pin

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

■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 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:

QFN10 (1.8 x 1.4 mm) package

Applications

■Low voltage system level translation

■Mobile phones and other mobile devices

■I2C level translation

■UART level translation

Table 1. Device summary

Order code Package Packing

ST2329AQTRQTR QFN10

(1.8 x 1.4 mm)

Tape and reel

(3000 parts per

reel)

QFN10

(1.8 x 1.4 mm)

www.st.com

Contents ST2329A
2/24 Doc ID 14907 Rev 3
Contents
Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Pin settings  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1 Pin connection  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
2 Pin description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  6
Device block diagrams  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Supplementary notes  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1 Driver requirement  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
2 Load driving capability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
3 Power off feature   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
4 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Recommended operating conditions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  9
Electrical characteristics   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1 DC characteristics   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
2 AC characteristics   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  12
2.1 Device driven by open drain driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.2 Device driven by totem pole driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Waveforms  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Package mechanical data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Revision history   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

ST2329A List of tables
Doc ID 14907 Rev 3 3/24
List of tables
Table 1. Device summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Table 2. Pin description  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Table 3. Truth table. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Table 4. Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 5. Recommended operating conditions  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Table 6. DC characteristics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Table 7. AC characteristics - test conditions: VL = 1.65 - 1.8 V  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 8. AC characteristics - test conditions: VL= 2.5 - 2.7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Table 9. AC characteristics - test conditions: VL = 2.7 - 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Table 10. AC characteristics - test conditions: VL= 1.65 - 1.8 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Table 11. AC characteristics - test conditions: VL= 2.5 - 2.7 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 12. AC characteristics - test conditions: VL= 2.7 - 3.6 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Table 13. Test circuit switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Table 14. Waveform symbol value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Table 15. Mechanical data for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 20
Table 16. Document revision history  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

List of figures ST2329A

4/24 Doc ID 14907 Rev 3

List of figures

Figure 1. Pin connection (top through view) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Figure 2. ST2329A block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 3. Application block diagram. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Figure 4. Test circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Figure 5. Waveform - propagation delay (f = 1 MHz; 50% duty cycle). . . . . . . . . . . . . . . . . . . . . . . . 17

Figure 6. Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle) . . . . . . . . . . . . . 18

Figure 7. Package outline for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 19

Figure 8. Footprint recommendation for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . 20

Figure 9. Carrier tape for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . . . . 21

Figure 10. Reel information for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 21

Figure 11. Reel information for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 22

ST2329A Description

Doc ID 14907 Rev 3 5/24

1 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 a transmission gate-based

design that allows bidirectional level translation without a control pin.

The ST2329A 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 tri-state output mode which can be used to disable all I/Os.

The ST2329A supports power-down mode when VCC is grounded/floating and the device is

disabled via the OE pin.

Pin settings ST2329A

6/24 Doc ID 14907 Rev 3

2 Pin settings

2.1 Pin connection

Figure 1. Pin connection (top through view)

2.2 Pin description

345

10 9

CS00011

VLVCC

I/OVCC1

I/OVCC2

I/OVL1

I/OVL2

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 enable

4 NC No connection

5 NC No connection

6 GND Ground

7I/O

VCC2 Data input/output

8I/O

VCC1 Data input/output

CC Supply voltage

10 VLSupply voltage

ST2329A Device block diagrams

Doc ID 14907 Rev 3 7/24

3 Device block diagrams

Figure 2. ST2329A block diagram

1. ST2329A has 2 channels. For simplicity, the diagram above shows only 1 channel.

2. When OE is LOW, all I/Os are in high impedance mode.

Figure 3. Application block diagram

)/6, )/6##

34!

6,6##

!-6

ONESHOTCIRCUIT

6,6##

/% 

)/6, )/6##



)/6,

)/6##



3YSTEM

CONTROLLER

6##

3YSTEM

CONTROLLER

6##6##



6,



6,6##



!-6

Supplementary notes ST2329A

8/24 Doc ID 14907 Rev 3

4 Supplementary notes

4.1 Driver requirements

The ST2329A 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 =5.5V, V

L= 4.3 V, and the pull-up resistor is 10 kΩ, then the driver must

be able to sink at least (5.5 V / 10 kΩ) + (4.3 V / 10 kΩ)=1 mA and still meet the VIL

requirements of the ST2329A.

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 might be required to turn off one of the power supplies

powering up the level translator, the user may 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 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)

ST2329A Maximum rating

Doc ID 14907 Rev 3 9/24

5 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.

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/OVL 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. 500 mW: 65 oC derated to 300 mW by 10 mW / oC: 65 oC to 85 oC.

500 mW

TSTG Storage temperature -65 to 150 oC

TL Lead temperature (10 seconds) 300 oC

ESD Electrostatic 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) 0−3.6 V

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 0 −1ns/V

Electrical characteristics ST2329A

10/24 Doc ID 14907 Rev 3

6 Electrical characteristics

6.1 DC characteristics

Over recommended operating conditions unless otherwise noted. All typical values are at

TA = 25 oC.

Table 6. DC characteristics

Symbol Parameter VLVCC Test conditions

Value

UnitTA = 25 oC -40 to 85 oC

Min Typ Max Min Max

VIHL

High level input

voltage (I/OVL)

1.65

VL to 5.5 −

1.4 −−1.4 −

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

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 level input

voltage (I/OVCC)1.65 to VCC

1.8

−

1.6 −−1.6 −

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 −

2.7 - 3.6 3.6 - 5.5 −−−−0.5 −

VIH-OE

High level input

voltage (OE)

1.65

VL to 5.5 −

1.0 −−1.0 −

2.0 1.2 −−1.2 −

2.5 1.4 −−1.4 −

3.0 1.6 −−1.6 −

3.6 2.0 −−2.0 −

ST2329A Electrical characteristics

Doc ID 14907 Rev 3 11/24

Symbol Parameter VLVCC Test conditions

Value

UnitTA = 25 oC -40 to 85 oC

Min Typ Max Min Max

VIL-OE

Low level input

voltage (OE)

1.65

VL to 5.5

−−0.33 −0.33

2.0 −−0.40 −0.40

2.5 −−0.50 −0.50

3.0 −−0.60 −0.60

3.6 −−0.75 −0.75

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

−−±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

−33.5 −4µA

IQVL

Quiescent

supply current

1.65 to 3.6 VL to 5.5

only pull-up

resistor

connected to I/O

−0.01 0.1 −1µA

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

−33.5 −4µA

IZ-VL

High impedance

quiescent

supply current

1.65 to 3.6 VL to 5.5

OE = GND;

only pull-up

resistor

connected to I/O

−0.01 0.1 −1µA

Table 6. DC characteristics (continued)

Electrical characteristics ST2329A

12/24 Doc ID 14907 Rev 3

6.2 AC characteristics

6.2.1 Device driven by open drain driver

Load CL=15pF; R

up =4.7kΩ; driver tr=t

f≤ 2 ns overtemperature range -40 °C to 85 °C.

Table 7. AC characteristics - test conditions: VL = 1.65 - 1.8 V

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 −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

tI/OVL-VCC

Propagation delay time

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

tI/OVCC-VL

Propagation delay time

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

tPZL tPZH

tPLZ tPHZ

Output enable and

disable time

En −10 −10 −10 ns

Dis −40 −40 −40 ns

DRData rate(1) −1.8 −2.2 −3.4 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

Symbol Parameter

VCC =2.7 −3.6 V VCC =4.3− 5.5 V

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

tI/OVL-VCC

Propagation delay time

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

tI/OVCC-VL

Propagation delay time

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

ST2329A Electrical characteristics

Doc ID 14907 Rev 3 13/24

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 −6−6ns

Dis −40 −40 ns

DRData rate(1) −2.2 −3.0 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 characteristics - test conditions: VL = 2.7 −3.6 V

Symbol Parameter

VCC = 4.3 − 5.5 V

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

tI/OVL-VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH −2.0 ns

tPHL −10.6 ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH −2.0 ns

tPHL −4.8 ns

tPZL tPZH

tPLZ tPHZ

Output enable and disable time En −6ns

Dis −40 ns

DRData rate(1) −−3.0 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 (continued)

Electrical characteristics ST2329A

14/24 Doc ID 14907 Rev 3

6.2.2 Device driven by totem pole driver

Load CL=15pF; R

up =10kΩ; driver tr = tf≤ 2 ns overtemperature range -40 °C to 85 °C.

Table 10. AC characteristics - test conditions: VL=1.65−1.8 V

Symbol Parameter

VCCB =1.8–2.5V V

CCB = 2.7 – 3.6 V VCCB = 4.3 – 5.5 V

Unit

Min Max Min Max Min Max

tRVCC Rise time I/OVCC −7.2 −4.6 −1.4 ns

tFVCC Fall time I/OVCC −23.2 −33.9 −53.3 ns

tRVL Rise time I/OVL −5.9 −5.7 −5.5 ns

tFVL Fall time I/OVL −16.4 −17.6 −16.9 ns

tI/OVL-

VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH −5.5 −4.1 −3.6 ns

tPHL −13.9 −19.1 −30.2 ns

tI/OVCC-

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH −4.5 −3.9 −3.6 ns

tPHL −8.6 −9.0 −9.5 ns

tPZL tPZH

tPLZ tPHZ

Output enable and

disable time

En −10 −10 −10 ns

Dis −40 −40 −40 ns

DRData rate(1) −6.4 −4.5 −3.0 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

Doc ID 14907 Rev 3 15/24

Table 11. AC characteristics - test conditions: VL=2.5−2.7 V

Symbol Parameter

VCC =2.7 − 3.6 V VCC =4.3− 5.5 V

Unit

Min Max Min Max

tRVCC Rise time I/OVCC −3.8 −2.8 ns

tFVCC Fall time I/OVCC −14.8 −19.1 ns

tRVL Rise time I/OVL −3.3 −3.2 ns

tFVL Fall time I/OVL −9.8 −10.0 ns

tI/OVL-VCC

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH −3.2 −2.8 ns

tPHL −8.2 −11.6 ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH −2.6 −2.0 ns

tPHL −5.3 −5.9 ns

tPZL tPZH

tPLZ tPHZ

Output enable and

disable time

En −6−6ns

Dis −40 −40 ns

DRData rate(1) −9−6.8 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 12. AC characteristics - test conditions: VL=2.7−3.6 V

Symbol Parameter

VCC =4.3−5.5 V

Unit

Min Max

tRVCC Rise time I/OVCC −2.9 ns

tFVCC Fall time I/OVCC −17.2 ns

tRVL Rise time I/OVL −3.0 ns

tFVL Fall time I/OVL −9.7 ns

tI/OVL-VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH −2.7 ns

tPHL −10.6 ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH −1.9 ns

tPHL −4.8 ns

tPZL tPZH

tPLZ tPHZ

Output enable and disable time En −6ns

Dis −40 ns

DRData rate(1) −7.2 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%.

Electrical characteristics ST2329A

16/24 Doc ID 14907 Rev 3

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

#36

0U LSE

GENERATOR $54

6##

/0%.

'.$

6##

2UP 2UP

ST2329A Waveforms

Doc ID 14907 Rev 3 17/24

7 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 VOL +0.15V VOL +0.3V

VYVOH -0.15V VOH -0.3V VOH -0.15V VOH -0.3V

Waveforms ST2329A

18/24 Doc ID 14907 Rev 3

Figure 6. Waveform - output enable and disable time (f = 1 MHz; 50% duty cycle)

ST2329A Package mechanical data

Doc ID 14907 Rev 3 19/24

8 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.

Figure 7. Package outline for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch

7936408 Rev.D

Package mechanical data ST2329A

20/24 Doc ID 14907 Rev 3

Table 15. Mechanical data for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch

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. Footprint recommendation for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm

pitch

ST2329A Package mechanical data

Doc ID 14907 Rev 3 21/24

Figure 10. Reel information for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch

Figure 9. Carrier tape for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch

Back view

Package mechanical data ST2329A

22/24 Doc ID 14907 Rev 3

Figure 11. Reel information for QFN10 (1.8 x 1.4 x 0.5 mm) - 0.40 mm pitch

ST2329A Revision history

Doc ID 14907 Rev 3 23/24

9 Revision history

Table 16. Document revision history

Date Revision Changes

16-Jul-2008 1 Initial release.

22-Jun-2009 2

Document status promoted from Preliminary data to datasheet.

Updated: Features section and Chapter 6: Electrical

characteristics.

Modified: Section 8.

02-Mar-2011 3

Document reformatted, moved Description from page 1 to page

5, minor text changes and corrected typo throughout the

document.

ST2329A

24/24 Doc ID 14907 Rev 3

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