TC7MB3257CFT/FK/FTG
2014-03-01 1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC7MB3257CFT, TC7MB3257CFK, TC7MB3257CFTG
Low Capacitance Quad 1-of-2 Multiplexer/Demultiplexer
The TC7MB3257C is a Low Capacitance CMOS Quad 1-of-2
multiplexer/demultiplexer. The low on resistance and the low
capacitance 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: V
CC
= 4.0 to 5.5 V
• On-capacitance: C
I/O
= 8.5 pF Switch On (typ.)@V
CC
=5V
• On resistance: R
ON
= 3 Ω (typ.) @V
CC
=4.5V, V
IS
=0 V
• ESD performance: Machine model ≥ ±200 V
Human body model ≥ ±2000 V
• Compatible with TTL outputs (control inputs)
• Power-down protection for inputs (
OE ,S and I/O)
• Package: TSSOP16,VSSOP16 (US16) , VQON16
• Pin compatible with the TC7MB3257FT/FK.
Note: When mounting VQON package, the type of recommended
flux is RA or RMA.
Pin Assignment
(top view)
TC7MB3257CFT
TC7MB3257CFK
TC7MB3257CFTG
Weight:
TSSOP16-P-0044-0.65A : 0.06 g (typ.)
VSSOP16-P-0030-0.50 : 0.02 g (typ.)
VQON16-P-0303-0.50 : 0.013 g (typ.)
V
CC
16
OE
4B1
4B2
15
14
13
S
1
2
3
4 1A
1B1
1B2
(top view)
4A 12
3B1
3B2
3A
11
10
9
2B1
5
6
7
8
GND
2B2
2A
FT (TSSOP16-P-0044-0.65A)
FK (VSSOP16-P-0030-0.50)
FTG (VQON16-P-0303-0.50)
1B2
1A
2B1
2B2
16 15 14 13
1B1 V
CC
5678
2A GND 3A 3B2
12
11
10
9
4B2
4A
3B1
4B1
S
OE
Start of commercial production
2010-10
