Datasheet ST2329B Datasheet (ST)

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Page 1

ST2329B

2-bit dual supply level translator without direction control pin, open

drain output

Datasheet − preliminary data

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

■ Wide 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:

QFN8 (1.4 x 1.2 x 0.55 mm) package

Applications

voltage range of 1.65 to 3.6 V

voltage range of VL to 5.5 V

QFN8

(1.4 x 1.2 x 0.55 mm)

Table 1. Device summary

Order code Package Packing

Tape and

reel (3000

parts per

reel)

ST2329BQTR

QFN8

(1.4 x 1.2 x

0.55 mm)

Package topmark

■ Low-voltage system level translation

■ Mobile phones and other mobile devices

■ I

C level translation

■ UART level translation

June 2012 Doc ID 023359 Rev 1 1/22

This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.

www.st.com

Page 2

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

4.1 Driver requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.2 Load driving capability . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.3 Power-off feature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.4 Truth table . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

5 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

2/22 Doc ID 023359 Rev 1

Page 3

ST2329B List of tables

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: V

(device driven by open drain driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 8. AC characteristics - test conditions: V

(device driven by open drain driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Table 9. AC characteristics - test conditions: V

(device driven by open drain driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Table 10. AC characteristics - test conditions: V

(device driven by totem pole driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Table 11. AC characteristics - test conditions: V

(device driven by totem pole driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 12. AC characteristics - test conditions: V

(device driven by totem pole driver) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Table 13. Test circuit switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table 14. Waveform symbol value . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Table 15. Mechanical data for QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 20

Table 16. Document revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

= 1.65 - 1.8 V

= 2.5 - 2.7 V

= 2.7 - 3.6 V

=1.65-1.8V

= 2.5 - 2.7 V

= 2.7 - 3.6 V

Doc ID 023359 Rev 1 3/22

Page 4

List of figures ST2329B

List of figures

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

Figure 2. ST2329BQTR 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 QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch . . . . . . . . . . . . . . . . . . . 19

Figure 8. Reel for carrier tape - 8 width . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4/22 Doc ID 023359 Rev 1

Page 5

ST2329B Description

1 Description

The ST2329B 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, V

and V

, 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 accepts V

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 ST2329B supports power-down mode when V

is grounded/floating and the device is

disabled via the OE pin.

Doc ID 023359 Rev 1 5/22

Page 6

Pin settings ST2329B

2 Pin settings

2.1 Pin connection

Figure 1. Pin connection (top through view)

2.2 Pin description

Table 2. Pin description

Pin number Symbol Name and function

2I/O

3I/O

4 GND Ground

5 OE Output enable

6I/O

7I/O

VL1

VL2

VCC2

VCC1

!-V

Supply voltage

Data input/output

Supply voltage

6/22 Doc ID 023359 Rev 1

Page 7

ST2329B Device block diagrams

3 Device block diagrams

Figure 2. ST2329BQTR 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

Doc ID 023359 Rev 1 7/22

Page 8

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/O

ensure that the driver is able to sink the required amount of current. For example, if the

settings are V

=5.5V, VL= 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)

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 V

(device is disabled). There is no current consumption in V

causes, and the I/Os are in a high-impedance state in this mode.

4.4 Truth table

and I/OVL ports, the user needs to

VCC

= 1 mA and still meet the V

only when the OE pin is low

due to floating gates or other

Table 3. Truth table

Enable Bi-directional input/output

OE I/O

(1)

L Z

1. High level VL power supply referred.

2. High level VCC power supply referred.

3. Z = high-impedance.

8/22 Doc ID 023359 Rev 1

VCC

(2)

L L

(3)

I/O

(1)

(3)

Page 9

ST2329B Maximum rating

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.

Table 4. Absolute maximum ratings

Symbol Parameter Value Unit

Supply voltage -0.3 to 4.6 V

I/OVL

I/OVCC

I/OVL

I/OVCC

SCTOUT

Supply voltage -0.3 to 6.5 V

DC control input voltage -0.3 to 6.5 V

DC I/OVL input voltage (OE = GND or VL) -0.3 to VL + 0.3 V

DC I/O

DC input diode current -20 mA

input voltage (OE = GND or VL) -0.3 to VCC + 0.3 V

VCC

DC output current ±25 mA

Short-circuit duration, continuous 40 mA

Power dissipation

Storage temperature -65 to 150 °C

STG

(1)

500 mW

TL Lead temperature (10 seconds) 300 °C

ESD Electrostatic discharge protection (HBM) ±2 kV

1. 500 mW: 65oC 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

I/OVL

I/OVCC

dt/dV Input rise and fall time 0

Supply voltage 1.65

Supply voltage V

Input voltage

(OE output enable pin, V

power supply referred)

I/OVL voltage 0

I/O

voltage 0

VCC

Operating temperature -40

−

3.6 V

5.5 V

3.6 V

85 °C

1ns/V

Doc ID 023359 Rev 1 9/22

Page 10

Electrical characteristics ST2329B

6 Electrical characteristics

6.1 DC characteristics

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

= 25 °C.

Table 6. DC characteristics

Value

Symbol Parameter V

1.65

IHL

ILL

IHC

High level input voltage (I/O

Low level input voltage (I/O

High level input voltage (I/O

VCC

)

1.65 to V

)

1.65

2.0 1.6

2.5 2.0 −−2.0 −

3.0 2.4 −−2.4 −

3.6 2.8 −−2.8 −

2.0

2.5

3.0

3.6

to 5.5 −

1.8

2.5 2.3

3.0 2.7 −−2.7 −

3.6 3.3 −−3.3 −

4.3 3.5 −−3.5 −

Test conditions

−

Min. Typ. Max. Min. Max.

1.4 −−1.4 −

−−1.6 −

−−

0.3 − 0.3

−−0.4 − 0.4

−−0.5 − 0.5

−−0.6 − 0.6

−−0.8 − 0.8

1.6 −−1.6 −

−−2.3 −

UnitTA = 25 oC -40 to 85 oC

5.5 4.2 −−4.2 −

1.65 - 2.5 3 - 5.5

)

2.7 - 3.6 3.6 - 5.5

1.65

2.0 1.2

2.5 1.4 −−1.4 −

3.0 1.6 −−1.6 −

3.6 2.0 −−2.0 −

to 5.5 −

ILC

Low level input voltage (I/O

High level input voltage (OE)

VCC

IH-OE

10/22 Doc ID 023359 Rev 1

−−−−0.3 −

−−−−0.5 −

1.0 −−1.0 −

−−1.2 −

Page 11

ST2329B Electrical characteristics

Table 6. DC characteristics (continued)

Value

Symbol Parameter V

1.65

IL-OE

OLL

OLC

Low level input voltage (OE)

Low level output voltage (I/O

)

Low level output voltage (I/O

VCC

1.65 to 3.6 V

)

Control input

leakage current

1.65 to 3.6 V

(OE)

High impedance

IO_LKG

leakage current (I/O

, I/O

VCC

)

1.65 to 3.6 V

Quiescent

QVCC

supply current V

1.65 to 3.6 VL to 5.5

Quiescent

QVL

supply current V

1.65 to 3.6 VL to 5.5

High impedance

Z-VCC

quiescent supply current V

1.65 to 3.6 VL to 5.5

High impedance

Z-VL

quiescent supply current V

1.65 to 3.6 VL to 5.5

2.0

2.5

3.0

3.6

Test conditions

UnitTA = 25 oC -40 to 85 oC

Min. Typ. Max. Min. Max.

−−0.33 − 0.33

−−0.40 − 0.40

to 5.5

−−0.50 − 0.50

−−0.60 − 0.60

−−0.75 − 0.75

to 5.5

to 5.5 OE = GND −−±0.1 − ±0.1 µA

IO = 1.0 mA

≤ 0.15 V

I/O

VCC

IO = 1.0 mA

≤ 0.15 V

I/O

= GND or

Only pull-up resistor connected to I/O

only pull-up resistor connected to I/O

OE = GND;

only pull-up resistor connected to I/O

OE = GND; only pull-up

resistor connected to I/O

−−0.40 − 0.40 V

−−±0.1 − ±0.1 µA

− 33.5 − 4µA

− 0.01 0.1 − 1µA

− 33.5 − 4µA

− 0.01 0.1 − 1µA

Doc ID 023359 Rev 1 11/22

Page 12

Electrical characteristics ST2329B

6.2 AC characteristics

6.2.1 Device driven by open drain driver

Load CL=15pF; Rup=4.7kΩ ; driver tr=t

Table 7. AC characteristics - test conditions: VL = 1.65 - 1.8 V (device driven by open drain

≤ 6 ns over temperature range -40 °C to 85 °C.

driver)

= 1.8 - 2.5 V VCC= 2.7 - 3.6 V VCC=4.3-5.5V

Symbol Parameter

RVCC

FVCC

RVL

FVL

I/OVL-VCC

I/OVCC-VL

PZL

PLZ

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%.

Rise time I/O

Fall time I/O

Rise time I/O

Fall time I/O

Propagation delay time I/O

VL-LH

I/O

VL-HL

Propagation delay time I/O

VCC-LH

I/O

VCC-HL

Output enable and disable time

Data rate

VCC

to I/O to I/O

(1)

VCC

VCC-LH

VCC-HL

VL-LH

PLH

PHL

PLH

PHL

Dis

Min. Max. Min. Max. Min. Max.

−

80.0

23.2

60.0

16.4

3.4

13.9

2.0

8.6

1.8

−

60.0

33.9

45.0

17.6

2.0

19.1

2.0

9.0

2.2

−

45.0 ns

53.3 ns

35.0 ns

16.9 ns

2.0 ns

30.2 ns

2.6 ns

9.5 ns

10 ns

40 ns

3.4 MHz

Unit

Table 8. AC characteristics - test conditions: VL= 2.5 - 2.7 V (device driven by open drain

driver)

=2.7-3.6V VCC= 4.3 - 5.5 V

Symbol Parameter

RVCC

FVCC

RVL

FVL

I/OVL-VCC

I/OVCC-VL

12/22 Doc ID 023359 Rev 1

Rise time I/O

Fall time I/O

Rise time I/O

Fall time I/O

Propagation delay time I/O

VL-LH

I/O

VL-HL

Propagation delay time I/O

VCC-LH

I/O

VCC-HL

VCC

to I/O to I/O

VCC

VCC-LH VCC-HL

VL-LH

PLH

PHL

PLH

PHL

Min. Max. Min. Max.

−

70.0

14.8

50.0

9.8

2.0

8.2

2.0

5.3

−

50.0 ns

19.1 ns

35.0 ns

10.0 ns

2.0 ns

11.6 ns

2.0 ns

5.9 ns

Unit

Page 13

ST2329B Electrical characteristics

Table 8. AC characteristics - test conditions: VL= 2.5 - 2.7 V (device driven by open drain

driver) (continued)

=2.7-3.6V VCC= 4.3 - 5.5 V

Symbol Parameter

Unit

Min. Max. Min. Max.

PZL

PLZ

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%.

Output enable and disable time

Data rate

(1)

Dis

−

2.2

−

6ns

40 ns

3.0 MHz

Table 9. AC characteristics - test conditions: VL = 2.7 - 3.6 V (device driven by open drain

driver)

= 4.3 - 5.5 V

Symbol Parameter

RVCC

FVCC

RVL

FVL

I/OVL-VCC

I/OVCC-VL

PZL

PLZ

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%.

Rise time I/O

Fall time I/O

Rise time I/O

Fall time I/O

VCC

Propagation delay time

VL-LH

VL-HL

to I/O to I/O

VCC-LH

VCC-HL

I/O I/O

Propagation delay time I/O

VCC-LH

I/O

VCC-HL

to I/O to I/O

VL-LH

VL-HL

Output enable and disable time

Data rate

(1)

PLH

PHL

PLH

PHL

Dis

−−

Min. Max.

−

55.0 ns

17.2 ns

40.0 ns

9.7 ns

2.0 ns

10.6 ns

2.0 ns

4.8 ns

6ns

40 ns

3.0 MHz

Unit

Doc ID 023359 Rev 1 13/22

Page 14

Electrical characteristics ST2329B

6.2.2 Device driven by totem pole driver

Load CL=15pF; Rup=10kΩ ; driver tr = t

Table 10. AC characteristics - test conditions: VL= 1.65 - 1.8 V (device driven by totem pole

≤ 6 ns over temperature range -40 °C to 85 °C.

driver)

=1.8-2.5V V

Symbol Parameter

RVCC

FVCC

RVL

FVL

I/OVL-

VCC

I/OVCC-

PZL

PLZ

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%.

Rise time I/O

Fall time I/O

Rise time I/O

Fall time I/O

Propagation delay time I/O

VL-LH

I/O

VL-HL

Propagation delay time I/O

VCC-LH

I/O

VCC-HL

Output enable and disable time

Data rate

VCC

to I/O to I/O

(1)

VCC

VCC-LH

VCC-HL

VL-LH

VL-HL

PLH

PHL

PLH

PHL

Dis

CCB

Min. Max. Min. Max. Min. Max.

−

7.2

23.2

5.9

16.4

5.5

13.9

4.5

8.6

6.4

= 2.7 - 3.6 V V

CCB

−

4.6

33.9

5.7

17.6

4.1

19.1

3.9

9.0

4.5

=4.3-5.5V

CCB

−

Unit

1.4 ns

53.3 ns

5.5 ns

16.9 ns

3.6 ns

30.2 ns

3.6 ns

9.5 ns

10 ns

40 ns

3.0 MHz

14/22 Doc ID 023359 Rev 1

Page 15

ST2329B Electrical characteristics

Table 11. AC characteristics - test conditions: VL= 2.5 - 2.7 V (device driven by totem pole

driver)

=2.7- 3.6V VCC=4.3- 5.5V

Symbol Parameter

Unit

Min. Max. Min. Max.

RVCC

FVCC

RVL

FVL

I/OVL-VCC

I/OVCC-VL

PZL

PLZ

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

Rise time I/O

Fall time I/O

Rise time I/O

Fall time I/O

VCC

Propagation delay time I/O

VCC-LH

I/O

VCC-HL

to I/O to I/O

VL-LH

VL-HL

Propagation delay time I/O

VCC-LH

I/O

VCC-HL

to I/O to I/O

VL-LH

VL-HL

Output enable and disable time

Data rate

(1)

PLH

PHL

PLH

PHL

Dis

−

3.8

14.8

3.3

9.8

3.2

8.2

2.6

5.3

−

2.8 ns

19.1 ns

3.2 ns

10.0 ns

2.8 ns

11.6 ns

2.0 ns

5.9 ns

6ns

40 ns

6.8 MHz

driver)

=4.3- 5.5V

Symbol Parameter

Unit

Min. Max.

RVCC

FVCC

RVL

FVL

I/OVL-VCC

I/OVCC-VL

PZL

PLZ

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%.

Rise time I/O

Fall time I/O

Rise time I/O

Fall time I/O

VCC

Propagation delay time

VL-LH

VL-HL

to I/O to I/O

VCC-LH

VCC-HL

I/O I/O

Propagation delay time I/O

VCC-LH

I/O

VCC-HL

to I/O to I/O

VL-LH

VL-HL

Output enable and disable time

Data rate

(1)

PLH

PHL

PLH

PHL

Dis

−

2.9 ns

17.2 ns

3.0 ns

9.7 ns

2.7 ns

10.6 ns

1.9 ns

4.8 ns

6ns

40 ns

7.2 MHz

Doc ID 023359 Rev 1 15/22

Page 16

Electrical characteristics ST2329B

Figure 4. Test circuit

0U LSE

GENER

ATOR

$54

/0%.

'.$

Table 13. Test circuit switches

Test

Driving I/O

PLH

, t

PHL

Open Open Open

Switch

Driving I/O

VCC

#36

Open drain driving

16/22 Doc ID 023359 Rev 1

Page 17

ST2329B Waveforms

7 Waveforms

Table 14. Waveform symbol value

2.5 V

50% V

Driving I/O

≤

Symbol

1.8 V ≤ VL≤ V

2.5 V

50% V

Driving I/O

≤

3.3 V ≤ VL≤ V

50% V

5.0 V

50% V

≤

1.8 V ≤ VL≤ V

50% V

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

VCC

3.3V ≤ VL≤ V

5.0 V

50% V

≤

Doc ID 023359 Rev 1 17/22

Page 18

Waveforms ST2329B

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

18/22 Doc ID 023359 Rev 1

Page 19

ST2329B Package mechanical data

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 QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch

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0).,%!$

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4%2-).!,4)0

3%#4)/.##

3#!,%./.%

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.

/$$4%2-).!,3)$%

%6%.4%2-).!,3)$%

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.

Doc ID 023359 Rev 1 19/22

!-6

Page 20

Package mechanical data ST2329B

Table 15. Mechanical data for QFN8 (1.4 x 1.2 x 0.55 mm) - 0.40 mm pitch

Dimensions

Symbol

NoteMillimeters

Min. Nom. Max.

A 0.50 0.55 0.60

A1 0.00 - 0.05

b 0.15 0.20 0.25

B 0 - 12°

(1)

(2)

e 0.40 BSC

(3)

L 0.25 0.30 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.

Figure 8. Reel for carrier tape - 8 width

20/22 Doc ID 023359 Rev 1

2EEL

Page 21

ST2329B Revision history

9 Revision history

Table 16. Document revision history

Date Revision Changes

25-Jun-2012 1 Initial release.

Doc ID 023359 Rev 1 21/22

Page 22

ST2329B

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22/22 Doc ID 023359 Rev 1