SN74CBTS16212

24-BIT FET BUS-EXCHANGE SWITCH

WITH SCHOTTKY DIODE CLAMPING

SCDS036B – DECEMBER 1997 – REVISED MAY 1998

1

POST OFFICE BOX 655303

JESD 17

MIL-STD-833, Method 3015; Exceeds 200 V

Using Machine Model (C = 200 pF, R = 0)

Shrink Small-Outline (DGG), Thin Very

Small-Outline (DGV), and 300-mil Shrink

Small-Outline (DL) Packages

description

The SN74CBTS16212 provides 24 bits of

high-speed TTL-compatible bus switching or

exchanging with Schottky diodes on the I/Os to

clamp undershoot. The low on-state resistance of

the switch allows connections to be made with

minimal propagation delay.

The device operates as a 24-bit bus switch or a

12-bit bus exchanger, which provides data

exchanging between the four signal ports via the

data-select (S0–S2) terminals.

The

SN74CBTS16212

is

characterized

for

operation from –40

°C to 85°C.

FUNCTION TABLE

INPUTS

INPUTS/OUTPUTS

FUNCTION

S2

S1

S0

A1

A2

FUNCTION

L

L

L

Z

Z

Disconnect

L

LH

B1

Z

A1 port = B1 port

L

HL

B2

Z

A1 port = B2 port

L

HH

Z

B1

A2 port = B1 port

H

LL

Z

B2

A2 port = B2 port

H

LH

Z

Z

Disconnect

H

HL

B1

B2

A1 port = B1 port

A2 port = B2 port

H

H

H

B2

B1

A1 port = B2 port

A2 port = B1 port

PRODUCTION DATA information is 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.

Copyright

© 1998, Texas Instruments Incorporated

DGG, DGV, OR DL PACKAGE

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31

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29

S0

1A1

1A2

2A1

2A2

3A1

3A2

GND

4A1

4A2

5A1

5A2

6A1

6A2

7A1

7A2

8A1

GND

8A2

9A1

9A2

10A1

10A2

11A1

11A2

12A1

12A2

S1

S2

1B1

1B2

2B1

2B2

3B1

GND

3B2

4B1

4B2

5B1

5B2

6B1

6B2

7B1

7B2

8B1

GND

8B2

9B1

9B2

10B1

10B2

11B1

11B2

12B1

12B2

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.