Datasheet ST2189 Datasheet (ST)

Features

ST2189

8-bit dual supply level translator without direction control pin

■ 46 MHz: 92 Mbps data transfer when V

CCA

=

3.6 V

■ Bidirectional level translation without direction

control pin

■ Wide voltage range of 1.65 V to 3.6 V for both

V

and V

CCA

■

Configurable voltage translation: –V

CCA

■

Partial power down support - when V

CCB

can be ≥ V

CCB

or V

can be ≤ V

CCA

CCB

is grounded, all the outputs will automatically go to high impedance.

■ Low quiescent current (5 µA)

■ ESD performance:

– ±4 kV HBM (human body model)

Applications

■ Low voltage system level translation

■ Mobile phones

■ Other mobile devices

QFN20

(1.8 x 3.2 mm)

Description

The ST2189 is an 8-bit dual supply level translator which provides the level shifting capability to allow data transfer in a multi-voltage system. Externally applied voltages, V levels on either side of the device. Its architecture allows bidirectional level translation without a control pin.

CCB

and V

, set the logic

CCA

The ST2189 accepts V and V

from 1.65 V to 3.6 V, making it ideal for

CCB

from 1.65 V to 3.6 V

CCA

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.

In power down mode feature - when V

CCB

supply is grounded, all I/Os go to high impedance automatically, with very low quiescent current on V

supply.

CCA

Table 1. Device summary

Order code Package Packing

ST2189QTR QFN20 (3.2 x 1.8 mm) Tape and reel

August 2009 Doc ID 15918 Rev 1 1/21

www.st.com

21

Pin settings ST2189

1 Pin settings

1.1 Pin connection

Figure 1. Pin connection (top through view)

1.2 Pin description

Table 2. Pin description

Pin number Type Side Symbol Name and function

1 I/O V

2 I/O V

3 I/O V

4 I/O V

5-V

6-V

7 I/O V

CCA

V

A1

A2

A3

A4

OE

CCA

A5

Input/output 1. Referenced to V

CCA

Input/output 2. Referenced to V

CCA

Input/output 3. Referenced to V

CCA

Input/output 4. Referenced to V

CCA

Output enabled. Pull OE low to put all output to tri-state mode. Referenced to V

A port supply voltage. V V

or V

CCB

CCA

≥ V

CCB

CCA

≤

Input/output 5. Referenced to V

CCA

2/21 Doc ID 15918 Rev 1

ST2189 Pin settings

Table 2. Pin description (continued)

Pin number Type Side Symbol Name and function

8 I/O V

9 I/O V

10 I/O V

11 I/O V

12 I/O V

13 I/O V

14 I/O V

15 - V

CCA

CCB

V

A6

A7

A8

B8

B7

B6

B5

CCB

Input/output 6. Referenced to V

CCA

Input/output 7. Referenced to V

CCA

Input/output 8. Referenced to V

CCA

Input/output 8. Referenced to V

CCB

Input/output 7. Referenced to V

CCB

Input/output 6. Referenced to V

CCB

Input/output 5. Referenced to V

CCB

B port supply voltage. V

or V

V

CCA

16 - - GND Ground

17 I/O V

18 I/O V

19 I/O V

20 I/O V

CCB

B4

B3

B2

B1

Input/output 4. Referenced to V

CCB

Input/output 3. Referenced to V

CCB

Input/output 2. Referenced to V

CCB

Input/output 1. Referenced to V

CCB

≤ V

CCA

CCB

≥

Doc ID 15918 Rev 1 3/21

Logic diagram ST2189

2 Logic diagram

Figure 2. Logic block diagram

4/21 Doc ID 15918 Rev 1

ST2189 Logic diagram

2.1 Device block diagram

Figure 3. ST2189 block diagram

Figure 4. Application block diagram

Doc ID 15918 Rev 1 5/21

Supplementary notes ST2189

3 Supplementary notes

3.1 Driver requirement

It must be ensured that the driver is able to source and sink a minimum of 1mA current on both sides of the device. The device requires the driver to source/sink a maximum current of (V

/4) mA to/from the weak 4 kΩ output buffer in order to change the state of the output.

CC

3.2 Load driving capability

To support the level translation without direction pin architecture, the one-shot transistor at the output side is only turned ON during state transition. After the one-shot transistor is turned OFF, only the 4 kΩ pull-up/down resistor maintains the state of the output. As a result, resistive load or pull-up resistor less than 50 kΩ is not recommended.

3.3 Ensuring low current consumption during off state

The OE pin can be tied to the enable signal which is driving the enable pin of the slave device to ensure that the device will turn off and put all I/Os to tri-state mode whenever the slave device is not needed. On the event that the enable signal driving into the slave device is active low, the signal going into the OE pin for ST2189 (active high) needs to be inverted accordingly.

Alternatively, a pull-down resistor can be added to the V V

supply does not float whenever the supply is turned off. All the I/Os go to high

CCB

impedance automatically when this happens.

3.4 Truth table

Table 3. Truth table

Enable Bidirectional Input/Output

OE I/O

H

1. High level V

2. High level V

3. Z = High impedance.

CCA

CCB

VCCB

(1)

L High-Z

power supply referred.

(2)

H

LL

(3)

supply. This will ensure that the

CCB

I/O

VCCA

(1)

H

(3)

High-Z

6/21 Doc ID 15918 Rev 1

ST2189 Maximum ratings

4 Maximum ratings

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.

Table 4. Absolute maximum ratings

Symbol Parameter Value Unit

V

CCA

V

CCB

V

I/OVCCA

V

I/OVCCB

I

I/OVCCA

I

I/OVCCB

T

STG

T

Supply voltage -0.3 to 4.6 V

DC control intput voltage -0.3 to 4.6 V

OE

DC I/O

DC input diode current -20 mA

IK

input voltage (OE = GND or V

VCCA

input voltage (OE = GND or V

VCCB

CCA

DC output current ±25 mA

Storage temperature -65 to 150 °C

Lead temperature (10 seconds) 300 °C

L

ESD Electrostatic discharge protection (HBM) ±4 kV

4.1 Recommended operating conditions

Table 5. Recommended operating conditions

Symbol Parameter Min. Type Max. Unit

V

CCA

V

CCB

V

I/OVCCA

V

I/OVCCB

T

OP

dt/dV Input rise and fall time - - 1 ns/V

Supply voltage 1.65 - 3.6 V

Input voltage (OE output enable

I

pin,V

I/O

power supply reference)

CCA

voltage 0 - V

VCCA

voltage 0 - V

VCCB

0-V

Operating temperature -40 - 85 °C

) -0.3 to 4.6 V

CCA

CCB

V

Doc ID 15918 Rev 1 7/21

Electrical characteristics ST2189

5 Electrical characteristics

Device electrical characteristics over recommended operating conditions (unless otherwise noted). All typical values are at T

Table 6. DC characteristics

= 25 °C.

A

Val ue

Symbol Parameter V

High level

V

IHA

input voltage

VCCA

)

(I/O

Low level

V

ILA

IHB

input voltage (I/O

VCCA)

High level input voltage

VCCB

)

(I/O

1.65 to

CCA

V

CCB

Test condition

Min Max Min Max

1.65

1.2 - 1.2 -

1.8 1.3 - 1.3 -

2.5 1.65 - 1.65 -

1.65 to

3.6

3.0 2.1 - 2.1 -

3.6 2.6 - 2.6 -

1.65

-0.3-0.3

1.8 - 0.4 - 0.4

2.5 - 0.55 - 0.55

1.65 to

3.6

3.0 - 0.85 - 0.85

3.6 - 0.95 - 0.95

1.65 1.2 - 1.2 -

1.8 1.3 - 1.3 -

3.6

2.5 1.65 - 1.65 -

3.0 2.1 - 2.1 -

3.6 2.6 - 2.6 -

1.65 - 0.3 - 0.3

UnitTA=25°C -40 to 85°C

V

Low level

ILB

input voltage (I/O

VCCB

)

V

1.65 to

3.6

1.8 - 0.4 - 0.4

2.5 - 0.55 - 0.55

3.0 - 0.85 - 0.85

3.6 - 0.95 - 0.95

1.65

1.8 1.3 - 1.3 -

2.5 1.4 - 1.4 -

1.65 to

3.6

3.0 1.65 - 1.65 -

V

IH-OE

High level input voltage (OE)

3.6 2.1 - 2.1 -

8/21 Doc ID 15918 Rev 1

V

1.2 - 1.2 -

V

ST2189 Electrical characteristics

Table 6. DC characteristics (continued)

Val ue

Symbol Parameter V

Low level

V

IL-OE

input voltage (OE)

High level

V

OHA

output voltage

VCCA

)

(I/O

1.65 to

Low level

V

OLA

output voltage

VCCA

)

(I/O

High level

V

OHB

output voltage

VCCB

)

(I/O

1.65 to

Low level

V

OLB

I

OE

output voltage

VCCB

)

(I/O

Control input leakage

1.65 to

current (OE)

High impedance

I

IO_LKG

I

QVCCB

I/O leakage current

VCCA

VCCB

,

)

(I/O I/O

Quiescent supply current V

CCB

1.65 to

Quiescent

I

QVCCA

supply current V

CCA

1.65 to

High

I

OE-

VCCB

impedance quiescent supply current V

CCB

1.65 to

CCA

V

CCB

Test condition

Min Max Min Max

1.65

-0.3-0.3

1.8 - 0.4 - 0.4

2.5 - 0.55 - 0.55

1.65 to

3.6

3.0 - 0.85 - 0.85

3.6 - 0.95 - 0.95

3.6

1.65 to

3.6

IO= -60 µA

V

0.7

CCA

V

0.7

CCA

IO=+60µA-0.4-0.4V

3.6

1.65 to

3.6

IO= -60 µA

V

0.7

CCB

V

0.7

CCB

IO=+60µA - 0.4 - 0.4 V

= GND or

V

I

V

CCA

-0.2- 2µA

3.6

1.65 to

3.6

OE = GND;

-0.2- 2µA

-0.5- 5µA

-5-7

-0.5- 5µA

3.6

1.65 to

3.6

1.65 to

3.6

I/O

I/O I/O

= High

VCCA

= Low

VCCB

OE = GND

= Low,

VCCA

= High

VCCB

OE = V

CCA

I/O = Hi-Z

1.65 to

3.6

0-0.3-3

1.65 to

3.6

OE = V

CCA

I/O = Hi-Z

OE = GND

I/O = Hi-Z

UnitTA=25°C -40 to 85°C

V

-V

µA

Doc ID 15918 Rev 1 9/21

Electrical characteristics ST2189

Table 6. DC characteristics (continued)

Val ue

Symbol Parameter V

CCA

V

CCB

Test condition

Min Max Min Max

I

OE-VCCA

High impedance quiescent supply current V

CCA

1.65 to

3.6

1.65 to

3.6

1.65 to

3.6

0-0.3-3

OE = GND

I/O = Hi-Z

-0.5- 5

5.1 AC characteristics

Table 7. For test conditions: V

overtemperature range -40 °C to 85 °C

Symbol Parameter

t

RVCCB

t

FVCCB

t

RVCCA

t

FVCCA

t

I/OVCCA-

VCCB

t

I/OVCCB-

VCCA

t

PZL tPZH

t

PLZ tPHZ

D

1. Data rates are measured at worst case condition when all 8 channels are switching at the same time. Data rate is guaranteed based on the condition that output I/O signal rise/fall time is less than 15% of period of input I/O signal; input I/O signal is at 50% duty-cycle and output I/O signal duty-cycle deviation is less than 50% ± 10%.

Output rise time I/O

Output fall time I/O

Output rise time I/O

Output fall time I/O

VCCB

VCCA

Propagation delay time I/O

VCCA-LH

I/O

VCCA-HL

to I/O to I/O

VCCB-LH

VCCB-HL

Propagation delay time I/O

VCCB-LH

I/O

VCCB-HL

to I/O to I/O

VCCA-LH

VCCA-HL

Output enable time - 20 - 20 ns

Output disable time - 160 - 180 ns

R

Data rate

(1)

= 1.65 V (load CL= 15 pF; driver tr = tf ≤ 2ns)

CCA

V

= 1.65 V - 2.5 V V

CCB

= 2.7V - 3.6 V

CCB

Min Max Min Max

-2.7-1.6ns

-1.8-1.2ns

-3.0-3.0ns

-1.8-1.6ns

t

PLH

t

PHL

t

PLH

t

PHL

-5.9-4.5ns

-4.0-4.0ns

-6.2-5.8ns

-4.3-3.7ns

Clock 28 - 32 - MHz

Data 56 - 64 - Mbps

UnitTA=25°C -40 to 85°C

µA

Unit

10/21 Doc ID 15918 Rev 1

ST2189 Electrical characteristics

Table 8. For test conditions: V

range -40 °C to 85 °C

Symbol Parameter

t

RVCCB

t

FVCCB

t

RVCCA

t

FVCCA

t

I/OVCCA-

VCCB

t

I/OVCCB-

VCCA

t

PZL tPZH

t

PLZ tPHZ

D

Output rise time I/O

Output fall time I/O

Output rise time I/O

Output fall time I/O

VCCB

VCCA

Propagation delay time I/O

VCCA-LH

I/O

VCCA-HL

to I/O to I/O

VCCB-LH

VCCB-HL

Propagation delay time I/O

VCCB-LH

I/O

VCCB-HL

to I/O to I/O

VCCA-LH

VCCA-HL

Output enable time - 25 - 12 ns

Output disable time - 150 - 180 ns

R

Data rate

(1)

= 2.5 V (load CL= 15 pF; driver tr = tf ≤ 2 ns) overtemperature

CCA

V

= 1.65V - 2.5 V V

CCB

= 2.7V - 3.6 V

CCB

Min Max Min Max

-2.5-1.4ns

-1.6-1.2ns

-2.1-2.0ns

-1.4-1.4ns

t

PLH

t

PHL

t

PLH

t

PHL

-4.7-3.3ns

-2.9-2.6ns

-4.3-3.8ns

-3.3-2.8ns

Clock 40 - 42 - MHz

Data 80 - 84 - Mbps

Unit

1. Data rates are measured at worst case condition when all 8 channels are switching at the same time. Data rate is guaranteed based on the condition that output I/O signal rise/fall time is less than 15% of period of input I/O signal; input I/O signal is at 50% duty-cycle and output I/O signal duty-cycle deviation is less than 50% ± 10%.

Doc ID 15918 Rev 1 11/21

Electrical characteristics ST2189

Table 9. For test conditions: V

range -40 °C to 85 °C

Symbol Parameter

t

RVCCB

t

FVCCB

t

RVCCA

t

FVCCA

t

I/OVCCA-

VCCB

t

I/OVCCB-

VCCA

t

PZL tPZH

t

PLZ tPHZ

D

Output rise time I/O

Output fall time I/O

Output rise time I/O

Output fall time I/O

VCCB

VCCA

Propagation delay time I/O

VCCA-LH

I/O

VCCA-HL

to I/O to I/O

VCCB-LH

VCCB-HL

Propagation delay time I/O

VCCB-LH

I/O

VCCB-HL

to I/O to I/O

VCCA-LH

VCCA-HL

Output enable time - 20 - 10 ns

Output disable time - 150 - 160 ns

R

Data rate

(1)

= 3.6 V (load CL= 15 pF; driver tr = tf ≤ 2 ns) overtemperature

CCA

V

= 1.65 V - 2.5 V V

CCB

= 2.7 V - 3.6 V

CCB

Min Max Min Max

-2.5-1.4ns

-1.5-1.2ns

-1.7-1.7ns

-1.4-1.4ns

t

PLH

t

PHL

t

PLH

t

PHL

-4.4-3.0ns

-2.6-2.2ns

-3.8-3.0ns

-3.0-2.3ns

Clock 43 - 46 - MHz

Data 86 - 92 - Mbps

Unit

1. Data rates are measured at worst case condition when all 8 channels are switching at the same time. Data rate is guaranteed based on the condition that output I/O signal rise/fall time is less than 15% of period of input I/O signal; input I/O signal is at 50% duty-cycle and output I/O signal duty-cycle deviation is less than 50% ± 10%.

5.2 Capacitance characteristics

Table 10. Capacitance characteristics

Val ue

Symbol Parameter

C

INB

Input capacitance Open Open - 12 - - - pF

Input/output

C

I/O-VCCA

capacitance for V

-side

CCA

Input/output

C

I/O-VCCB

capacitance for V

-side

CCB

V

CCA

(V) V

CCB

(V)

1.65 - 3.6 1.65 - 3.6 - 12 - - - pF

T

= 25 °C -40 to 85 °C

A

Min Typ Max Min Max

Unit

12/21 Doc ID 15918 Rev 1

ST2189 Test circuit

6 Test circuit

Figure 5. Test circuit

V

CCA

CCB

V

CCA

V

CCB OPEN GND

CS14021V2

Pulse

generator

D.U.T

R

1

C

L

Table 11. Test circuit switches

Tes t C

t

PLH

t

r

t

PZL

t

PZH

, t

PHL

, t

f

, t

PLZ

, t

PHZ

15 pF 20 kΩ Open

15 pF 20 kΩ V

15 pF 20 kΩ GND

L

R

1

Switch

CCA

or V

CCB

Doc ID 15918 Rev 1 13/21

Waveforms ST2189

7 Waveforms

Table 12. Waveform symbol value

Symbol

V

IH

V

IM

V

OM

V

X

V

Y

I/O

V

CCB

1.65 V - 2.5V

V

CCA

50% V

VOL + 0.15V VOL + 0.3V VOL + 0.15V VOL + 0.3V

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

CCA

CCB

VCCA

-> I/O

VCCB

V

CCB

2.7 V - 3.6 V

V

CCA

50% V

CCA

50% V

CCB

I/O

VCCB

V

CCA

1.65 V - 2.5 V

V

CCB

50% V

CCB

50% V

CCA

-> I/O

Figure 6. Waveform - propagation delay (f = 1 MHz, 50% duty cycle)

t

R

t

F

VCCA

V

CCA

2.7 V - 3.6 V

V

CCB

50% V

CCB

50% V

CCA

14/21 Doc ID 15918 Rev 1

ST2189 Waveforms

Figure 7. Waveform - output enable/disable (f = 50 kHz, 50% duty cycle)

t

R

t

F

V

or V

CCA

CCB

AM04047V1

Doc ID 15918 Rev 1 15/21

Package information ST2189

8 Package information

In order to meet environmental requirements, ST offers these devices in different grades of ECOPACK specifications, grade definitions and product status are available at: www.st.com. ECOPACK

Figure 8. Package outline for QFN20 (1.8 x 3.2 x 0.5 mm) - pitch 0.4 mm

®

packages, depending on their level of environmental compliance. ECOPACK®

®

is an ST trademark.

16/21 Doc ID 15918 Rev 1

ST2189 Package information

Table 13. Mechanical data for QFN20 (1.8 x 3.2 x 0.5 mm) - pitch 0.4 mm

Milimeters

Symbol

Nom 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 3.20 3.15 3.25

E 1.80 1.75 1.85

e0.40 - -

L 0.40 0.35 0.45

Figure 9. Footprint recommendation for QFN20 (1.8 x 3.2 x 0.5 mm) - pitch 0.4 mm

Doc ID 15918 Rev 1 17/21

Package information ST2189

Figure 10. Carrier tape for QFN20 (1.8 x 3.2 x 0.5 mm) - pitch 0.4 mm

18/21 Doc ID 15918 Rev 1

ST2189 Package information

Figure 11. Reel information for QFN20 (1.8 x 3.2 x 0.5 mm) - pitch 0.4 mm

Doc ID 15918 Rev 1 19/21

Revision history ST2189

9 Revision history

Table 14. Document revision history

Date Rev Changes

31-Jul-2009 1 Initial release.

20/21 Doc ID 15918 Rev 1

ST2189

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Doc ID 15918 Rev 1 21/21