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TC74LCX257FK

Toshiba Semiconductor
Part Number TC74LCX257FK
Manufacturer Toshiba Semiconductor
Description Low-Voltage Quad 2-Channel Multiplexer
Published Jan 28, 2021
Detailed Description TC74LCX257F/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX257F, TC74LCX257FK Low-Voltage Quad 2-C...
Datasheet PDF File TC74LCX257FK PDF File

TC74LCX257FK
TC74LCX257FK

Overview
TC74LCX257F/FK TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74LCX257F, TC74LCX257FK Low-Voltage Quad 2-Channel Multiplexer (3-state) with 5-V Tolerant Inputs and Outputs The TC74LCX257 is a high-performance CMOS multiplexer.
Designed for use in 3.
3-V systems, it achieves high-speed operation while maintaining the CMOS low-power dissipation.
The device is designed for low-voltage (3.
3 V) VCC applications, but it could be used to interface to 5-V supply environment for inputs.
It is composed of four independent 2-channel multiplexers with common select and OE .
If OE is set low, the outputs are held in a high-impedance state.
When SELECT is set low, “A” data inputs are enabled.
Conversely, when SELECT is high, “B” data inputs are enabled.
All inputs are equipped with protection circuits against static discharge.
Features • Low-voltage operation: VCC = 2.
0 to 3.
6 V • High-speed operation: tpd = 6.
0 ns (max) (VCC = 3.
0 to 3.
6 V) • Output current: |IOH|/IOL = 24 mA (min) (VCC = 3.
0 V) • Latch-up performance: −500 mA • Available in JEITA SOP, VSSOP(US) • Power-down protection provided on all inputs and outputs • Pin and function compatible with the 74 series (74AC/VHC/HC/F/ALS/LS etc.
) 257 type TC74LCX257F TC74LCX257FK Weight SOP16-P-300-1.
27A VSSOP16-P-0030-0.
50 : 0.
18 g (typ.
) : 0.
02 g (typ.
) © 2018 1 Toshiba Electronic Devices & Storage Corporation Start of commercial production 1995-02 2018-08-02 Pin Assignment (top view) SELECT 1 1A 2 1B 3 1Y 4 2A 5 2B 6 2Y 7 GND 8 16 VCC 15 14 4A 13 4B 12 4Y 11 3A 10 3B 9 3Y Truth Table Inputs OE SELECT A B H X X X L L L X L L H X L H X L L H X H X: Don’t care Z: High impedance System Diagram 1 SELECT 2 1A 3 1B 5 2A 6 2B 11 3A 10 3B 14 4A 13 4B 15 IEC Logic Symbol TC74LCX257F/FK (15) (1) SELECT (2) 1A (3) 1B (5) 2A (6) 2B (11) 3A (10) 3B (14) 4A (13) 4B EN G1 MUX 1 (4) 1Y (7) 2Y (9) 3Y (12) 4Y Outputs Y Z L H L H 4 1Y 7 2Y 9 3Y 12 4Y © 2018 2 Toshiba Electronic Devic...


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