TC7MB3257FK

2007-10-19

1

TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic

TC7MB3257FK

Quad 1-of-2 Multiplexer/Demultiplexer

The TC7MB3257FK is high-speed CMOS quad 1-2

multiplexer/demultiplexer. The low on resistance of the switch

allows connections to be made with minimal propagation delay

time.

This device consists of four individual two-inputs

multiplexer/demultiplexer with common select input (S) and

output enable (OE). The A inputs is connected to the B1 or B2

outputs determined by the combination both the select input (S)

and output enable (OE). When the output enable (OE) input is

held “H” level, the switches are open with regardless the state of

select inputs and a high-impedance state exists between the

switches.

All inputs are equipped with protection circuits against static

discharge.

Features

• ESD performance: Machine model ≥ ±200 V

Human body model

≥ ±2000 V

• Compatible with TTL outputs (control inputs)

• Package: VSSOP (US16)

• Pin compatible with the 74xx257 type.

Functionally equivalent to (FST/CBT) 3257.

Weight: 0.02 g (typ.)

16

4B1

4B2

15

14

13

1

2

3

4

1A

1B1

1B2

4A

12

3B1

3B2

3A

11

10

9

2B1

5

6

7

8

GND

2B2

OE

S

2A