器件名称:
M74HC126F1R
功能描述:
QUAD BUS BUFFERS 3-STATE
文件大小:
252.24KB 共10页
简 介:
M54/74HCT125 M54/74HCT126 QUAD BUS BUFFERS (3-STATE) . . . . . . . HIGH SPEED tPD = 12 ns (TYP.) AT VCC = 5 V LOW POWER DISSIPATION ICC = 4 A (MAX.) AT 25 °C OUTPUT DRIVE CAPABILITY 15 LSTTL LOADS BALANCED PROPAGATION DELAYS tPLH = tPHL SYMMETRICAL OUTPUT IMPEDANCE IOL = IOH = 6 mA (MIN.) COMPATIBLE WITH TTL OUTPUTS VIH = 2V (MIN.) VIL = 0.8V (MAX) PIN AND FUNCTION COMPATIBLE WITH 54/74LS125/126 B1R (Plastic Package) F1R (Ceramic Package) M1R (Micro Package) C1R (Chip Carrier) DESCRIPTION The M54/74HCT125/126 are high speed CMOS QUAD BUS BUFFER (3-STATE) FABRICATED IN SILICON GATE C2MOS technology. They have the same high speed performance of LSTTL combined with true CMOS low power consumption. These devices require the same 3-STATE control input G to be taken high to make the output go into the high impedance state.This integrated circuit has input and output characteristics that are fully compatible with 54/74 LSTTL logic families. M54/74HCT devices are designed to directly interface HSC2MOS systems with TTL and NMOS components. They are also plug in replacements for LSTTL devices giving a reduction of power consumption. All inputs are equipped with protection circuits against static discharge and transient excess voltage. INPUT AND OUTPUT EQUIVALENT CIRCUIT ORDER CODES : M54HCTXXXF1R M74HCTXXXM1R M74HCTXXXB1R M74HCTXXXC1R PIN CONNECTIONS (top view) HCT125 HCT126 NC = No Internal Connection October 1993 1/10 M54/M74HCT125/126 CHIP CARRIER HCT125 HCT126 TRUTH……
