M74HC670B1R集成电路（IC）的移位寄存器规格书PDF中文资料

M74HC670B1R属于集成电路（IC）的移位寄存器。由意法半导体集团制造生产的M74HC670B1R移位寄存器移位寄存器是低级逻辑器件，通常用于在串行和并行方式之间转换数字逻辑信号形式的数据，或在数字字内移动数据位的位置。移位寄存器通常使用集成到一个设备中的一组触发器来实现，常用于集成度更高的逻辑器件，但仍可用于 I/O 扩展等应用，在这些应用中离散形式的函数可能会非常有用。

DESCRIPTION

The M74HC670 is an high speed CMOS 4-WORD x 4 BIT REGISTER FILE (3 STATE) fabricated with silicon gate C2MOS technology.

The M74HC670 is 4 x 4 Register File organized as four words by four bits. Separate read and write inputs, both address and enable, allow simultaneous read and write operation. The 3-state outputs make it possible to connect up to 128 outputs to increase the word capacity up to 512 words. Any number of these devices can be operated in parallel to generate an n-bit length.

All inputs are equipped with protection circuits against static discharge and transient excess voltage.

■ HIGH SPEED : tPD = 22 ns (TYP.) at VCC = 6V

■ LOW POWER DISSIPATION: ICC =4µA(MAX.) at TA=25°C

■ HIGH NOISE IMMUNITY: VNIH = VNIL = 28 VCC (MIN.)

■ SYMMETRICAL OUTPUT IMPEDANCE: |IOH| = IOL = 4mA (MIN)

■ BALANCED PROPAGATION DELAYS: tPLH ≅ tPHL

■ WIDE OPERATING VOLTAGE RANGE: VCC (OPR) = 2V to 6V

■ PIN AND FUNCTION COMPATIBLE WITH 74 SERIES 670