器件名称:
M74HC7292M1R
功能描述:
PROGRAMMABLE DIVIDER/TIMER
文件大小:
299.84KB 共14页
简 介:
M54/74HC292/7292 M54/74HC294/7294 PROGRAMMABLE DIVIDER/TIMER . . . . . . . . HIGH SPEED fMAX = 70 MHz (TYP.) at VCC = 5 V LOW POWER DISSIPATION o ICC = 4 mA (MAX.) at TA = 25 C HIGH NOISE IMMUNITY VNIH = VNIL = 28 % VCC (MIN.) OUTPUT DRIVE CAPABILITY 10 LSTTL LOADS SYMMETRICAL OUTPUT IMPEDANCE | IOH|= IOL = 4 mA (MIN.) BALANCED PROPAGATION DELAYS tPLH = tPHL WIDE OPERATING VOLTAGE RANGE VCC (OPR) = 2 V TO 6 V PIN AND FUNCTION COMPATIBLE WITH 54/74LS292/294 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) ORDER CODES : M54HCXXXF1R M74HCXXXM1R M74HCXXXB1R M74HCXXXC1R DESCRIPTION The 54/74HC292/7292 and HC294/7294 are high speed CMOS PROGRAMMABLE DIVIDER/TIMER fabricated with silicon C2MOS technology. They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power dissipation. These devices are programmable frequency dividers. The types have two clock inputs, either one may be used for clock gating. (see the function table). The HC292/7292 can divide from 22 to 231, and the HC294/7294 can divide from 22 to 215. The PIN CONNECTION (top view) HC292 HC7292 HC294 HC7294 HC292 HC7292 HC294 HC7294 types feature an active-low clear input to initialize the state of all flip-flops. To facilitate incoming inspection, test points are provided. (TP1, TP2 and TP3 on the HC292/7292 and TP on the HC294/7294). All inputs are equipped with protection circuits against static discharge and transient excess voltage. H……
