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TC74AC166P

Part Number	TC74AC166P
Manufacturer	Toshiba Semiconductor
Description	8-Bit Shift Register
Published	Jan 21, 2007
Detailed Description	TC74AC166P/F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC166P, TC74AC166F 8-Bit Shift Register (P-I...
Datasheet	TC74AC166P PDF File

Overview

TC74AC166P/F TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic TC74AC166P, TC74AC166F 8-Bit Shift Register (P-IN, S-OUT) The TC74AC166 is an advanced high speed CMOS 8-BIT PARALLEL/SERIAL-IN, SERIAL-OUT SHIFT REGISTER fabricated with silicon gate and double-layer metal wiring C2MOS technology.
It achieves the high speed operation similar to equivalent Bipolar Schottky TTL while maintaining the CMOS low power dissipation.
It consists of parallel-in or serial-in, serial-out 8-bit shift register with a gated clock input and an overriding clear input.
The parallel-in or serial-in modes are controlled by the SHIFT/ LOAD input.
When the SHIFT/ LOAD input is held high, the serial data input is enabled and the eight flip-flops perform serial shifting on each clock pulse.
When held low, the parallel data inputs are enabled and synchronous loading occurs on the next clock pulse.
Clocking is accomplished on the low-to-high transition of the clock pulse.
The CLOCK-INHIBIT input should be shifted high only while the CLOCK input is held high.
A direct clear input overrides all other inputs, including the clock, and sets all the flip-flops to zero.
Functional details are shown in the truth table and the timing charts.
All inputs are equipped with protection circuits against static discharge or transient excess voltage.
Features • High speed: fmax = 170 MHz (typ.
) at VCC = 5 V • Low power dissipation: ICC = 8 μA (max) at Ta = 25°C • High noise immunity: VNIH = VNIL = 28% VCC (min) • Symmetrical output impedance: |IOH| = IOL = 24 mA (min) Capability of driving 50 Ω transmission lines.
• Balanced propagation delays: tpLH ∼− tpHL • Wide operating voltage range: VCC (opr) = 2 to 5.
5 V • Pin and function compatible with 74HC166 Pin Assignment TC74AC166P TC74AC166F Weight DIP16-P-300-2.
54A SOP16-P-300-1.
27A : 1.
00 g (typ.
) : 0.
18 g (typ.
) Start of commercial production 1988-10 1 2014-03-01 IEC Logic Symbol TC74AC166P/F Truth Table CLR L H H H H H SHIFT/ LOAD X X L H H...

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