Texas Instruments SN74LVTH162541DLR, SN74LVTH162541DGGR, SN74LVTH162541DL Datasheet

SN54LVTH162541, SN74LVTH162541

3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SCBS690E – MAY 1997 – REVISED APRIL 1999

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

Members of the Texas Instruments

Widebus

 Family

D

State-of-the-Art Advanced BiCMOS
Technology (ABT) Design for 3.3-V
Operation and Low Static-Power
Dissipation

D

Output Ports Have Equivalent 22-Ω Series
Resistors, So No External Resistors Are
Required

D

Support Mixed-Mode Signal Operation
(5-V Input and Output Voltages With

3.3-V V

CC

)

D

Support Unregulated Battery Operation
Down to 2.7 V

D

T ypical V

OLP

(Output Ground Bounce)

< 0.8 V at V

CC

= 3.3 V, TA = 25°C

D

I

off

and Power-Up 3-State Support Hot

Insertion

D

Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors

D

Distributed VCC and GND Pin Configuration
Minimizes High-Speed Switching Noise

D

Flow-Through Architecture Optimizes PCB
Layout

D

Latch-Up Performance Exceeds 500 mA Per
JESD 17

D

ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)

D

Package Options Include Plastic Shrink
Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages and 380-mil
Fine-Pitch Ceramic Flat (WD) Package
Using 25-mil Center-to-Center Spacings

description

These 16-bit buffers/drivers are designed specifically for low-voltage (3.3-V) VCC operation, but with the
capability to provide a TTL interface to a 5-V system environment.

These devices are noninverting 16-bit buffers composed of two 8-bit sections with separate output-enable
signals. For either 8-bit buffer section, the two output-enable (1OE1

and 1OE2 or 2OE1 and 2OE2) inputs must
be low for the corresponding Y outputs to be active. If either output-enable input is high, the outputs of that 8-bit
buffer section are in the high-impedance state.

Copyright  1999, Texas Instruments Incorporated

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

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 Incorporated.

SN54LVTH162541. . . WD PACKAGE

SN74LVTH162541. . . DGG OR DL PACKAGE

(TOP VIEW)

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47
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1OE1

1Y1
1Y2

GND

1Y3
1Y4

V

CC

1Y5
1Y6

GND

1Y7
1Y8
2Y1
2Y2

GND

2Y3
2Y4

V

CC

2Y5
2Y6

GND

2Y7
2Y8

2OE1

1OE2
1A1
1A2
GND
1A3
1A4
V

CC

1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
V

CC

2A5
2A6
GND
2A7
2A8
2OE2

SN54LVTH162541, SN74LVTH162541

3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SCBS690E – MAY 1997 – REVISED APRIL 1999

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

description (continued)

The outputs, which are designed to source or sink up to 12 mA, include equivalent 22-Ω series resistors to
reduce overshoot and undershoot.

When V

CC

is between 0 and 1.5 V , the devices are in the high-impedance state during power up or power down.

However, to ensure the high-impedance state above 1.5 V, OE

should be tied to VCC through a pullup resistor;

the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
These devices are fully specified for hot-insertion applications using I

off

and power-up 3-state. The I

off

circuitry
disables the outputs, preventing damaging current backflow through the devices when they are powered down.
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.

The SN54L VTH162541 is characterized for operation over the full military temperature range of –55°C to 125°C.
The SN74LVTH162541 is characterized for operation from –40°C to 85°C.

FUNCTION TABLE

(each 8-bit section)

INPUTS

OUTPUT

OE1

OE2 A

Y

L L L L
L LH H
HXX Z
XHX Z

SN54LVTH162541, SN74LVTH162541

3.3-V ABT 16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS

SCBS690E – MAY 1997 – REVISED APRIL 1999

3

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

logic symbol

†

†

This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.

25

47

1A1

1Y1

2

46

1A2

1Y2

3

44

1A3

1Y3

5

43

1A4

1Y4

6

41

1A5

1Y5

8

40

1A6

1Y6

9

38

1A7

1Y7

11

37

1A8

1Y8

12

36

2A1

2Y1

13

35

2A2

2Y2

14

33

2A3

2Y3

16

32

2A4

2Y4

17

30

2A5

2Y5

19

29

2A6

2Y6

20

27

2A7

2Y7

22

26

2A8

2Y8

23

24

48

1

1OE1
1OE2

2OE1
2OE2

&

&

EN1

EN2

111

2

logic diagram (positive logic)

1OE1
1OE2

2OE1
2OE2

1A1 1Y1

2Y1

2A1

To Seven Other Channels To Seven Other Channels

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25

36

2

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