ST2329QTR - STMicroelectronics - Datasheet.Directory

May 2008 Rev 4 1/21

ST2329

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 current (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 translation

■Mobile phones and other mobile devices

■I2C level translation

■UART level translation

Description

The ST2329 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 ST2329 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 ST2329 supports power 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

ST2329QTR QFN10L (1.8 x 1.4 mm) Tape and reel (3000 parts per reel)

www.st.com

Contents ST2329

2/21

Contents

1 Pin settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1 Pin connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2 Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2 Device block diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Supplementary notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.1 Driver requirement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.2 Load driving capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.3 Power off feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3.4 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

4 Maximum rating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4.1 Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

5 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

5.1 AC characteristics (device driven by open drain driver) . . . . . . . . . . . . . . . 9

5.2 AC characteristics (device driven by totem pole driver ) . . . . . . . . . . . . . 11

6 Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

7 Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

ST2329 Pin settings

3/21

1 Pin settings

1.1 Pin connection

Figure 1. Pin connection (top through view)

1.2 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

7 I/OVCC2 Data input/output

8 I/OVCC1 Data input/output

CC Supply voltage

10 VLSupply voltage

Device block diagrams ST2329

4/21

2 Device block diagrams

Figure 2. ST2329 block diagram

Figure 3. Application block diagram

= one-shot circuit

I/O VL I/O VCC

ST2329

VL VCC

GND GND

* ST2329 has 2 channels. For simplicity, the above diagram shows only 1 channel.

* When OE is Low, all I/Os are in High-Impedance mode.

VL VCC

I/O

VL1

I/O

VCC1

I/O

VL2

I/O

VCC2

System

Controller

System

Controller

VCC VCC VL V

VL V CC

0.1 μF 0.1 μF 1 μF

ST2329 Supplementary notes

5/21

3 Supplementary notes

3.1 Driver requirement

The ST2329 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 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 ST2329.

3.2 Load driving capability

To support the open drain system, the one-shot transistor is turned on only during state

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.

During the translation from VCC side to VL side, the oscillation might be triggered when the

signal is reflected back as a glitch. This is caused by the architecture of the device (auto-

direction).

When using the ST2329, care need to be taken in the PCB data-track design and output

loading. It is recommended that the load is less than 25 pf.

3.3 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 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 ST2329

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4 Maximum rating

Stressing the device above the rating listed in the “Absolute maximum ratings” table 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 the operating sections of

this specification is not implied. Exposure to absolute 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/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. 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 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) 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 45 Mbps operation) 0 1 ns/V

ST2329 Electrical characteristics

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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 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

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

Electrical characteristics ST2329

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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

±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

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

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)

ST2329 Electrical characteristics

9/21

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) over 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 80 50 30 ns

tFVCC Fall time I/OVCC 333ns

tRVL Rise time I/OVL 766ns

tFVL Fall time I/OVL 455ns

tI/OVL-VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH 555ns

tPHL 555ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-LH

tPLH 555ns

tPHL 577ns

tPZL tPZH

tPLZ tPHZ

Output enable and

disable 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 70 40 ns

tFVCC Fall time I/OVCC 33ns

tRVL Rise time I/OVL 55ns

tFVL Fall time I/OVL 33ns

tI/OVL-VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH 22ns

tPHL 33ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-LH

tPLH 33ns

tPHL 44ns

Electrical characteristics ST2329

10/21

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 characteristics - 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 Fall time I/OVCC 3ns

tRVL Rise time I/OVL 4ns

tFVL Fall time I/OVL 3ns

tI/OVL-VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH 2ns

tPHL 4ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH 4ns

tPHL 4ns

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

ST2329 Electrical characteristics

11/21

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; driver

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 733ns

tRVL Rise time I/OVL 645ns

tFVL Fall time I/OVL 444ns

tI/OVL-

VCC

Propagation delay time

I/OVL-LH to I/OVCC-LH

I/OVL-HL to I/OVCC-HL

tPLH 654ns

tPHL 555ns

tI/OVCC-

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH 654ns

tPHL 4.5 5.2 7 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 33ns

tRVL Rise time I/OVL 55ns

tFVL Fall time I/OVL 33ns

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 44ns

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

tPHL 44

Electrical characteristics ST2329

12/21

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) 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 3ns

tRVL Rise time I/OVL 4ns

tFVL Fall time I/OVL 3ns

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 4ns

tI/OVCC-VL

Propagation delay time

I/OVCC-LH to I/OVL-LH

I/OVCC-HL to I/OVL-HL

tPLH 2ns

tPHL 4ns

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%.

ST2329 Electrical characteristics

13/21

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

VCC

OPEN

GND

Waveforms ST2329

14/21

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 VOL +0.15V VOL +0.3V

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

ST2329 Waveforms

15/21

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

Package mechanical data ST2329

16/21

7 Package mechanical data

In order to meet environmental requirements, ST offers these devices in ECOPACK®

packages. These packages have a Lead-free second level interconnect. The category of

second level interconnect is marked on the package and on the inner box label, in

compliance with JEDEC Standard JESD97. The maximum ratings related 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

ST2329 Package mechanical data

17/21

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 ST2329

18/21

Figure 10. QFN10L (1.8 x 1.4 mm) reel information - back view

Figure 9. QFN10L (1.8 x 1.4 mm) carrier tape

ST2329 Package mechanical data

19/21

Figure 11. QFN10L (1.8 x 1.4 mm) reel information - front side

Revision history ST2329

20/21

8 Revision history

Table 16. Document revision history

Date Revision Changes

15-May-2007 1 Initial release

01-Oct-2007 2 Modified title, added pin description and complete electrical

characteristics

31-Oct-2007 3

Updated Figure 4: Test circuit on page 13, Figure 7: QFN10L

(1.8 x 1.4 mm) package outline on page 16 and Figure 8:

QFN10L (1.8 x 1.4 mm) footprint recommendation on page 17 ,

minor text changes.

07-May-2008 4 Updated data rate values and added paragraph on load driving

capability (Section 3.2).

ST2329

21/21

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