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SN74LVC16646A

16-BIT BUS TRANSCEIVER AND REGISTER

WITH 3-STATE OUTPUTS

www.ti.com

SCES408B 鈥?AUGUST 2002 鈥?REVISED APRIL 2005

FEATURES

鈥?/div>

Member of the Texas Instruments Widebus鈩?/div>

Family

Operates From 1.65 V to 3.6 V

Inputs Accept Voltages to 5.5 V

In Transparent Mode, Max t

pd

of 5.2 ns

at 3.3 V

Typical V

OLP

(Output Ground Bounce)

< 0.8 V at V

CC

= 3.3 V, T

A

= 25掳C

Typical V

OHV

(Output V

OH

Undershoot)

> 2 V at V

CC

= 3.3 V, T

A

= 25掳C

Supports Mixed-Mode Signal Operation on

All Ports (5-V Input/Output Voltage With

3.3-V V

CC

)

I

off

Supports Partial-Power-Down Mode

Operation

Latch-Up Performance Exceeds 250 mA

Per JESD 17

ESD Protection Exceeds JESD 22

鈥?2000-V Human-Body Model (A114-A)

鈥?1000-V Charged-Device Model (C101)

DGG, DGV, OR DL PACKAGE

(TOP VIEW)

鈥?/div>

1DIR

1CLKAB

1SAB

GND

1A1

1A2

V

CC

1A3

1A4

1A5

GND

1A6

1A7

1A8

2A1

2A2

2A3

GND

2A4

2A5

2A6

V

CC

2A7

2A8

GND

2SAB

2CLKAB

2DIR

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

56

55

54

53

52

51

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

1OE

1CLKBA

1SBA

GND

1B1

1B2

V

CC

1B3

1B4

1B5

GND

1B6

1B7

1B8

2B1

2B2

2B3

GND

2B4

2B5

2B6

V

CC

2B7

2B8

GND

2SBA

2CLKBA

2OE

DESCRIPTION/ORDERING INFORMATION

This 16-bit bus transceiver and register is designed for 1.65-V to 3.6-V V

CC

operation.

The SN74LVC16646A can be used as two 8-bit transceivers or one 16-bit transceiver. The device consists of

bus transceiver circuits, D-type flip-flops, and control circuitry arranged for multiplexed transmission of data

directly from the input bus or from the internal registers.

ORDERING INFORMATION

T

A

SSOP 鈥?DL

鈥?0掳C to 85掳C

TSSOP 鈥?DGG

TVSOP 鈥?DGV

(1)

PACKAGE

(1)

Tube

Tape and reel

ORDERABLE PART NUMBER

SN74LVC16646ADL

SN74LVC16646ADLR

SN74LVC16646ADGGR

SN74LVC16646ADGVR

TOP-SIDE MARKING

LVC16646A

LD646A

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

www.ti.com/sc/package.

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.

Widebus is a trademark of Texas Instruments.

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.

LVC16646A

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