English
Language : 

TC7MB3257FT Datasheet, PDF (1/8 Pages) Toshiba Semiconductor – Quad 1-of-2 Multiplexer/Demultiplexer
TC7MB3257FT/FK
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MB3257FT, TC7MB3257FK
Quad 1-of-2 Multiplexer/Demultiplexer
The TC7MB3257 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
• Operating voltage: VCC = 4.5 to 5.5 V
• High speed: tpd = 0.25 ns (max)
• Low on resistance: RON = 5 Ω (typ.)
• ESD performance: Machine model ≥ ±200 V
Human body model ≥ ±2000 V
• Compatible with TTL outputs (control inputs)
• Package: TSSOP16,VSSOP16 (US16)
• Pin compatible with the 74xx257 type.
Functionally equivalent to (FST/CBT) 3257.
Pin Assignment (top view)
TC7MB3257FT
TC7MB3257FK
Weight:
TSSOP16-P-0044-0.65A
VSSOP16-P-0030-0.50
: 0.06 g (typ.)
: 0.02 g (typ.)
S1
1B1 2
1B2 3
1A 4
2B1 5
2B2 6
2A 7
GND 8
(top view)
16 VCC
15 OE
14 4B1
13 4B2
12 4A
11 3B1
10 3B2
9 3A
1
2008-09-01