SN54CBT16209, SN74CBT16209A

18-BIT FET BUS-EXCHANGE SWITCHES

SCDS006K – NOVEMBER 1992 – REVISED MAY 1998

1

POST OFFICE BOX 655303

Shrink Small-Outline (DGG), Thin Very

Small-Outline (DGV), 300-mil Shrink

Small-Outline (DL), and 380-mil Fine-Pitch

Ceramic Flat (WD) Packages

description

The

SN54CBT16209

and

SN74CBT16209A

devices

provide

18

bits

of

high-speed

TTL-compatible bus switching or exchanging.

The low on-state resistance of the switches allows

connections to be made with minimal propagation

delay.

The devices operate as an 18-bit bus switch or a

9-bit

bus

exchanger,

which

provides

data

exchanging between the four signal ports via the

data-select (S0, S1, S2) terminals.

The

SN54CBT16209

is

characterized

for

operation over the full military temperature range

of –55

°C to 125°C. The SN74CBT16209A 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

Copyright

© 1998, Texas Instruments Incorporated

1

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16

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18

19

20

21

22

23

24

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

25

S0

1A1

1A2

GND

2A1

2A2

3A1

3A2

GND

4A1

4A2

5A1

5A2

GND

6A1

6A2

7A1

7A2

GND

8A1

8A2

9A1

9A2

S1

S2

1B1

1B2

2B1

2B2

GND

3B1

3B2

GND

4B1

4B2

5B1

5B2

GND

6B1

6B2

7B1

7B2

GND

8B1

8B2

9B1

9B2

SN54CBT16209 ...WD PACKAGE

SN74CBT16209A . . . DGG, DGV, OR DL PACKAGE

(TOP VIEW)

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.

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.

On products compliant to MIL-PRF-38535, all parameters are tested

unless otherwise noted. On all other products, production

processing does not necessarily include testing of all parameters.