ROHM TXB0108GXYR, TXB0108PWR, TXB0108RGYR, TXB0108ZXYR Schematic [ru]

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GXY OR ZXY PACKAGE

(BOTTOM VIEW)

21 3 4 5

20 19

16 15 14 13

1 2

5 6 7 8

PW PACKAGE

(TOP VIEW)

18 17

12 11

3 4

RGY PACKAGE

(TOP VIEW)

1 20

10 11

2 3 4 5 6 7 8 9

19 18 17 16 15 14 13 12

CCB

B2 B3 B4 B5 B6 B7 B8

CCA

A2 A3 A4 A5 A6 A7 A8

GND

CCB

B2 B3 B4 B5 B6 B7

B8 GND

CCA

A2 A3 A4 A5 A6 A7

8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR

WITH AUTO-DIRECTION SENSING AND ± 15-kV ESD PROTECTION

SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007

FEATURES

• 1.2 V to 3.6 V on A Port and 1.65 to 5.5 V on • ESD Protection Exceeds JESD 22

B Port (V

• V

Isolation Feature – If Either V

GND, All Outputs Are in the High-Impedance State

• OE Input Circuit Referenced to V

• Low Power Consumption, 4- µ A Max I

• I

Supports Partial-Power-Down Mode

off

Operation

• Latch-Up Performance Exceeds 100 mA Per

JESD 78, Class II

≤ V

CCA

)

CCB

Input Is at

– A Port

– 2000-V Human-Body Model (A114-B) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101)

CCA

– B Port

– ± 15-kV Human-Body Model (A114-B) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101)

TERMINAL ASSIGNMENTS

(20-Ball GXY/ZXY Package)

1 2 3 4 5

D V C B1 B3 B5 B7 GND B A1 A3 A5 A7 OE A V

CCB

CCA

B2 B4 B6 B8

A2 A4 A6 A8

TXB0108

DESCRIPTION/ORDERING INFORMATION

This 8-bit noninverting translator uses two separate configurable power-supply rails. The A port is designed to track V accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, 3.3-V, and 5-V voltage nodes. V

When the output-enable (OE) input is low, all outputs are placed in the high-impedance state. The TXB0101 is desinged so that the OE input circuit is supplied by V

PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

. V

CCA

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track V

CCA

should not exceed V

. V

CCB

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TXB0108 8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO-DIRECTION SENSING AND ± 15-kV ESD PROTECTION

SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007

DESCRIPTION/ORDERING INFORMATION (CONTINUED)

This device is fully specified for partial-power-down applications using I preventing damaging current backflow through the device when it is powered down.

To ensure the high-impedance state during power up or power down, OE should be tied to GND through a pulldown resistor; the minimum value of the resistor is determined by the current-sourcing capability of the driver.

ORDERING INFORMATION

PACKAGE

QFN – RGY Reel of 1000 TXB0108RGYR YE08

–40 ° C to 85 ° C

TSSOP – PW Reel of 2000 TXB0108PWR YE08 VFBGA – GXY Reel of 2500 TXB0108GXYR YE08 VFBGA – ZXY (Pb-free) Reel of 2500 TXB0108ZXYR YE08

(1) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at

www.ti.com/sc/package.

(1)

ORDERABLE PART NUMBER TOP-SIDE MARKING

PIN DESCRIPTION

NO. NAME FUNCTION

1 A1 Input/output 1. Referenced to V 2 V

CCA

3 A2 Input/output 2. Referenced to V 4 A3 Input/output 3. Referenced to V 5 A4 Input/output 4. Referenced to V 6 A5 Input/output 5. Referenced to V 7 A6 Input/output 6. Referenced to V 8 A7 Input/output 7. Referenced to V

9 A8 Input/output 8. Referenced to V 10 OE 11 GND Ground

12 B8 Input/output 8. Referenced to V 13 B7 Input/output 7. Referenced to V 14 B6 Input/output 6. Referenced to V 15 B5 Input/output 5. Referenced to V 16 B4 Input/output 4. Referenced to V 17 B3 Input/output 3. Referenced to V 18 B2 Input/output 2. Referenced to V 19 V

CCB

20 B1 Input/output 1. Referenced to V

A-port supply voltage. 1.1 V ≤ V

Output enable. Pull OE low to place all outputs in 3-state mode. Referenced to V

CCA

B-port supply voltage. 1.65 V ≤ V

CCA

CCA CCA CCA CCA CCA CCA CCA

CCB CCB CCB CCB CCB CCB CCB

CCB

CCA

CCB

off

≤ 3.6 V, V . . . . . . .

. . . . . . .

≤ 5.5 V.

. The I

circuitry disables the outputs,

off

≤ V

CCA

CCB

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A1 A2

A3 A4 A5 A6 A7 A8

B1 B2

B3 B4 B5 B6 B7 B8

3.3-V

System

1.8 -V

System

Data

Controller

1.8 V

3.3 V

TXB0108

CCA

CCB

8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR

WITH AUTO-DIRECTION SENSING AND ± 15-kV ESD PROTECTION

SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007

TYPICAL OPERATING CIRCUIT

TXB0108

Absolute Maximum Ratings

(1)

over operating free-air temperature range (unless otherwise noted)

MIN MAX UNIT

Supply voltage range –0.5 4.6 V

CCA

Supply voltage range –0.5 6.5 V

CCB

Input voltage range

Voltage range applied to any output in the high-impedance or power-off state

Voltage range applied to any output in the high or low state

Input clamp current VI< 0 –50 mA

Output clamp current VO< 0 –50 mA

Continuous output current ± 50 mA

Continuous current through V

Package thermal impedance PW package

stg

Storage temperature range –65 150 ° C

(1) Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings

only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating

conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. (2) The input and output negative-voltage ratings may be exceeded if the input and output current ratings are observed. (3) The value of V (4) The package thermal impedance is calculated in accordance with JESD 51-7. (5) The package thermal impedance is calculated in accordance with JESD 51-5.

CCA

and V

(2)

, V

CCA

are provided in the recommended operating conditions table.

CCB

, or GND ± 100 mA

CCB

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–0.5 6.5 V

(2)

(2) (3)

A inputs –0.5 V B inputs –0.5 V

GXY/ZXY package

RGY package

(4)

(5)

–0.5 6.5 V

+ 0.5

CCA

+ 0.5

CCB

78 83 ° C/W 37

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TXB0108 8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO-DIRECTION SENSING AND ± 15-kV ESD PROTECTION

SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007

Recommended Operating Conditions

CCA

Supply voltage V

CCB

High-level input voltage 1.2 V to 3.6 V 1.65 V to 5.5 V V

Low-level input voltage 1.65 V to 5.5 V V

Input transition

∆ t/ ∆ v 1.65 V to 3.6 V 40 ns/V

rise or fall rate

Operating free-air temperature –40 85 ° C

(1) The A and B sides of an unused data I/O pair must be held in the same state, i.e., both at V (2) V (3) V

must be less than or equal to V

CCA

is the supply voltage associated with the input port.

CCI

Data inputs V OE V Data inputs 1.2 V to 5.5 V 0 V OE 1.2 V to 3.6 V 0 V A-port inputs 1.2 V to 3.6 V 1.65 V to 5.5 V 40

B-port inputs 1.2 V to 3.6 V

and must not exceed 3.6 V.

CCB

(1) (2)

CCA

CCB

MIN MAX UNIT

1.2 3.6

1.65 5.5

(3)

x 0.65

CCI

x 0.65 5.5

CCA

x 0.35

CCI

CCA

4.5 V to 5.5 V 30

or both at GND.

CCI

(3)

x 0.35

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8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR

WITH AUTO-DIRECTION SENSING AND ± 15-kV ESD PROTECTION

Electrical Characteristics

over recommended operating free-air temperature range (unless otherwise noted)

PARAMETER V

V V I

(1) V (2) V

OHA

OLA

OHB OLB

OE 1.2 V to 3.6 V 1.65 V to 5.5 V ± 1 ± 2 µ A

A port 0 V 0 V to 5.5 V ± 1 ± 2

off

B port 0 V to 3.6 V 0 V ± 1 ± 2 A or B port OE = GND 1.2 V to 3.6 V 1.65 V to 5.5 V ± 1 ± 2 µ A

CCA

CCB

+ I

CCA

CCB

CCZA

CCZB

OE 1.2 V to 3.6 V 1.65 V to 5.5 V 5 5.5 pF

A port 5 6.5

B port 8 10

is the supply voltage associated with the input port.

CCI

is the supply voltage associated with the output port.

CCO

IOH= –20 µ A V

IOL= 20 µ A V

IOH= –20 µ A 1.65 V to 5.5 V V IOL= 20 µ A 1.65 V to 5.5 V 0.4 V

VI= V IO= 0

VI= V IO= 0, 1.65 V to 5.5 V µ A OE = GND

(1) (2)

TEST

CONDITIONS

CCA

1.2 V 1.1

1.4 V to 3.6 V V

1.2 V 0.9

1.4 V to 3.6 V 0.4

1.2 V 0.06

or GND,

CCI

1.4 V to 3.6 V 5

1.65 V to 5.5 V

3.6 V 0 V 2 0 V 5.5 V –2

1.2 V 3.4

or GND,

CCI

1.4 V to 3.6 V 5

1.65 V to 5.5 V

3.6 V 0 V –2 0 V 5.5 V 2

or GND,

CCI

or GND, 1.2 V 0.05

CCI

1.2 V 3.5

1.4 V to 3.6 V 10

1.65 V to 5.5 V µ A

1.4 V to 3.6 V 5

or GND, 1.2 V 3.3

CCI

1.4 V to 3.6 V 5

1.2 V to 3.6 V 1.65 V to 5.5 V pF

TXB0108

SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007

CCB

MIN TYP MAX MIN MAX

– 0.4

CCA

– 0.4 V

CCB

TA= 25 ° C –40 ° C to 85 ° C

UNIT

µ A

Timing Requirements

TA= 25 ° C, V

Data rate 20 20 20 20 Mbps Pulse duration Data inputs 50 50 50 50 ns

= 1.2 V

CCA

Timing Requirements

over recommended operating free-air temperature range, V

Data rate 50 50 50 50 Mbps

Pulse duration Data inputs 20 20 20 20 ns

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CCB

= 1.8 V V

CCB

= 2.5 V V

CCB

= 3.3 V V

TYP TYP TYP TYP

= 1.5 V ± 0.1 V (unless otherwise noted)

CCA

= 1.8 V V

CCB

± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V

CCB

= 2.5 V V

CCB

= 3.3 V V

MIN MAX MIN MAX MIN MAX MIN MAX

= 5 V

CCB

= 5 V

CCB

UNIT

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TXB0108 8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR WITH AUTO-DIRECTION SENSING AND ± 15-kV ESD PROTECTION

SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007

Timing Requirements

over recommended operating free-air temperature range, V

Data rate 52 60 60 60 Mbps

Pulse duration Data inputs 19 17 17 17 ns

Timing Requirements

over recommended operating free-air temperature range, V

Data rate 70 100 100 Mbps

Pulse duration Data inputs 14 10 10 ns

Timing Requirements

over recommended operating free-air temperature range, V

Data rate 100 100 Mbps

Pulse duration Data inputs 10 10 ns

= 1.8 V ± 0.15 V (unless otherwise noted)

CCA

= 1.8 V V

CCB

± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V

CCB

= 2.5 V V

CCB

= 3.3 V V

MIN MAX MIN MAX MIN MAX MIN MAX

= 2.5 V ± 0.2 V (unless otherwise noted)

CCA

= 2.5 V V

CCB

± 0.2 V ± 0.3 V ± 0.5 V

= 3.3 V V

CCB

MIN MAX MIN MAX MIN MAX

= 3.3 V ± 0.3 V (unless otherwise noted)

CCA

= 3.3 V V

CCB

± 0.3 V ± 0.5 V

CCB

MIN MAX MIN MAX

= 5 V

CCB

UNIT

= 5 V

CCB

UNIT

= 5 V

UNIT

Switching Characteristics

TA= 25 ° C, V

PARAMETER UNIT

dis

trA, t trB, t

SK(O)

Max data rate 20 20 20 20 Mbps

= 1.2 V

CCA

FROM TO

(INPUT) (OUTPUT)

= 1.8 V V

CCB

TYP TYP TYP TYP

CCB

= 2.5 V V

CCB

= 3.3 V V

CCB

A B 9.5 7.9 7.6 8.5 B A 9.2 8.8 8.4 8

OE µ s

OE ns

fA fB

A-port rise and fall times 4.1 4.4 4.1 3.9 ns B-port rise and fall times 5 5 5.1 5.1 ns

A 1 1 1 1 B 1 1 1 1 A 20 17 17 18 B 20 16 15 15

Channel-to-channel skew 2.4 1.7 1.9 7 ns

= 5 V

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8-BIT BIDIRECTIONAL VOLTAGE-LEVEL TRANSLATOR

WITH AUTO-DIRECTION SENSING AND ± 15-kV ESD PROTECTION

SCES643A – NOVEMBER 2006 – REVISED JANUARY 2007

Switching Characteristics

over recommended operating free-air temperature range, V

PARAMETER UNIT

dis

trA, t

trB, t

SK(O)

Max data rate 50 50 50 50 Mbps

FROM TO

(INPUT) (OUTPUT)

A B 1.4 12.9 1.2 10.1 1.1 10 0.8 9.9 B A 0.9 14.2 0.7 12 0.4 11.7 0.3 13.7

OE µ s

OE ns

A 1 1 1 1 B 1 1 1 1 A 6.6 33 6.4 25.3 6.1 23.1 5.9 24.6

B 6.6 35.6 5.8 25.6 5.5 22.1 5.6 20.6 A-port rise and fall times 0.8 6.5 0.8 6.3 0.8 6.3 0.8 6.3 ns B-port rise and fall times 1 7.3 0.7 4.9 0.7 4.6 0.6 4.6 ns

Channel-to-channel skew 2.6 1.9 1.6 1.3 ns

Switching Characteristics

over recommended operating free-air temperature range, V

PARAMETER UNIT

dis

trA, t

trB, t

SK(O)

Max data rate 52 60 60 60 Mbps

FROM TO

(INPUT) (OUTPUT)

A B 1.6 11 1.4 7.7 1.3 6.8 1.2 6.5 B A 1.5 12 1.2 8.4 0.8 7.6 0.5 7.1

OE µ s

OE ns

A 1 1 1 1

B 1 1 1 1

A 5.9 26.7 5.6 21.6 5.4 18.9 4.8 18.7

B 6.1 33.9 5.2 23.7 5 19.9 5 17.6 A-port rise and fall times 0.7 5.1 0.7 5 1 5 0.7 5 ns B-port rise and fall times 1 7.3 0.7 5 0.7 3.9 0.6 3.8 ns

Channel-to-channel skew 0.8 0.7 0.6 0.6 ns

= 1.5 V ± 0.1 V (unless otherwise noted)

CCA

= 1.8 V V

CCB

± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V

CCB

= 2.5 V V

CCB

= 3.3 V V

MIN MAX MIN MAX MIN MAX MIN MAX

= 1.8 V ± 0.15 V (unless otherwise noted)

CCA

= 1.8 V V

CCB

± 0.15 V ± 0.2 V ± 0.3 V ± 0.5 V

CCB

= 2.5 V V

CCB

= 3.3 V V

MIN MAX MIN MAX MIN MAX MIN MAX

CCB

TXB0108

= 5 V

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