74HC595 Datasheet PDF - STMicroelectronics

DESCRIPTION
The M54/74HC595 is a high speed CMOS 8-BIT SHIFT REGISTERS/OUTPUT LATCHES (3-STATE) fabricated in silicon C2MOS technology. It has the same high speed performance of LSTTL combined with true CMOS low power consumption. This device contains an 8-bit serial-in, parallel-out shift register that feeds an 8-bit D-type storage register. The storage register has 8 3-STATE outputs. Separate clocks are provided for both the shift register and the storage register.

■ HIGH SPEED
   fMAX = 55 MHz (TYP.) AT VCC = 5 V
■ LOW POWER DISSIPATION
   ICC = 4 µA (MAX.) AT TA = 25 °C
■ HIGH NOISE IMMUNITY
   VNIH = VNIL = 28 % VCC (MIN.)
■ OUTPUT DRIVE CAPABILITY
   15 LSTTL LOADS FOR QA TO QH
   10 LSTTL LOADS FOR QH’
■ SYMMETRICAL OUTPUT IMPEDANCE
   |IOH| = IOL = 6 mA (MIN.) FOR QA TO QH
   |IOH| = IOL = 4 mA (MIN.) FOR QH’
■ BALANCED PROPAGATION DELAYS
   tPLH = tPHL
■ WIDE OPERATING VOLTAGE RANGE
   VCC (OPR) = 2 V TO 6 V
■ PIN AND FUNCTION COMPATIBLE
   WITH LSTTL 54/74LS595