TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
2-Bit Bus Exchange Switch
The TC7WB383FK is a low on-resistance, high-speed CMOS
2-bit bus exchange switch. This bus switch allows the connections
or disconnections to be made with minimal propagation delay
while maintaining Low power dissipation which is the feature of
When output enable (OE) is at high level, the switches are off.
When at low level, the switches are on, and by the logic of EX
terminal, it can choose whether 2 bits data are transferred to the
corresponding terminal as it is, or the data are transferred to a
terminal with exchanging data line. Therefore it may be used as
2 to 1 multiplexer switch.
Weight: 0.01 g (typ.)
Since the switch channels consist of N type MOSFET, the high
level output voltage is provided about 1 V lower than VCC level.
All inputs are equipped with protection circuits to protect the device from static discharge.
• Operating voltage: VCC = 4.5 to 5.5 V
• High speed operation: tpd = 0.25 ns (max)
• Ultra-low on resistance: RON = 5 Ω (typ.)
• ESD performance: Machine model ≥ ±200 V
Human body model ≥ ±2000 V
• TTL level input (control input)
• Package: US8
Pin Assignment (top view)
VCC C1 D1 EX
OE A1 B1 GND
Start of commercial production