Philips Semiconductors

Product data

CBT16211

24-bit bus switch with 12-bit output enables

2

2001 Jun 13

853-2259 26502

FEATURES

thin shrink small outline (TSSOP)

exceeds 100 mA

DESCRIPTION

The CBT16211 provides 24 bits of high-speed TTL-compatible bus

switching. The low on-state resistance of the switch allows

connections to be made with minimal propagation delay.

The device is organized as a dual 12-bit bus switch with separate

output-enable (OE) inputs. It can be used as two 12-bit bus switches

or as one 24-bit bus switch. When OE is low, the associated 12-bit

bus switch is on, and port A is connected to port B. When OE is

high, the switch is open, and a high-impedance state exists between

the ports.

The CBT16211 is characterized for operation from –40 to 85

°C.

QUICK REFERENCE DATA

SYMBOL

PARAMETER

CONDITIONS

TYPICAL

UNIT

Propagation delay

An to Yn

0.25

ns

Input capacitance

4.3

pF

Output capacitance

6.9

pF

Total supply current

3.0

µA

ORDERING INFORMATION

PACKAGES

TEMPERATURE RANGE

ORDER CODE

DWG NUMBER

56-Pin Plastic SSOP Type III

–40 to 85

°C

CBT16211DL

SOT371-1

56-Pin Plastic TSSOP Type II

–40 to 85

°C

CBT16211DGG

SOT364-1

FUNCTION TABLE

INPUTS

OUTPUTS

1OE

2OE

1A, 1B

2A, 2B

L

L

1A = 1B

2A = 2B

L

H

1A = 1B

Z

H

L

Z

2A = 2B

H

H

Z

Z

H = High voltage level

L

= Low voltage level

Z = High impedance “off ” state

LOGIC SYMBOL

1A1

1A12

2A1

2A12

1B1

1B12

2B1

2B12

2

14

54

42

15

28

41

29

55

56

SA00510

2OE

1OE