M54HC7643B1R中文资料意法半导体数据手册PDF规格书

DESCRIPTION

The M54/74HC7245 HC7640, HC7643 and HC7645 utilise silicon gate C2MOS technology to achive operating speeds equivalent to LSTTL devices.

■ HIGH SPEED tPD = 12 ns (TYP.) at VCC = 5V

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

■ HIGH NOISE IMMUNITY VH = 1.1 (TYP.) at VCC = 5V

■ OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS

■ SYMMETRICAL OUTPUT IMPEDANCE |IOH| = IOL = 6 mA (MIN)

■ BALANCED PROPAGATION DELAYS tPLH = tPHL

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

■ PIN AND FUNCTION COMPATIBLE WITH 54/74LS245/640/643