Texas Instruments 5962-9669701QXA Datasheet

SN54CBT16209, SN74CBT16209A

18-BIT FET BUS-EXCHANGE SWITCHES

SCDS006K – NOVEMBER 1992 – REVISED MA Y 1998

1

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

D

5-Ω Switch Connection Between Two Ports

D

TTL-Compatible Input Levels

D

Package Options Include Plastic Thin
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

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

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S0
1A1
1A2

GND

2A1
2A2

V

CC

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.

SN54CBT16209, SN74CBT16209A
18-BIT FET BUS-EXCHANGE SWITCHES

SCDS006K – NOVEMBER 1992 – REVISED MA Y 1998

2

POST OFFICE BOX 655303 • DALLAS, TEXAS 75265

logic diagram (positive logic)

9B2

9B1

1B2

1B1

9A2

9A1

1A2

1A1

S0

S1

S2

2

3

23

24

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48

47

46

45

26

25