Octal D-Type Latch 3-State Output IC - 74HC373

Octal D-Type Latch 3-State Output IC - 74HC373

Octal D-Type Latch 3-State Output IC - 74HC373

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  • Typical propagation delay: 18 ns 
  • Wide operating voltage range: 2 to 6 volts 
  • Low input current: 1 µA maximum 
  • Low quiescent current: 80 µA maximum (74 Series) 
  • Output drive capability: 15 LS-TTL loads

Octal D-Type Latch 3-State Output IC - 74HC373

The 74HC373 high-speed octal D-type latches utilize advanced silicon-gate CMOS technology. They possess the high noise immunity and low power consumption of standard CMOS integrated circuits, as well as the ability to drive 15 LS-TTL loads. Due to the large output drive capability and the 3-STATE feature, these devices are ideally suited for interfacing with bus lines in a bus organized system. 

When the LATCH ENABLE input is HIGH, the Q outputs will follow the D inputs. When the LATCH ENABLE goes LOW, data at the D inputs will be retained at the outputs until LATCH ENABLE returns HIGH again. When a high logic level is applied to the OUTPUT CONTROL input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and the state of the storage elements. The 74HC logic family is speed, function, and pin-out compatible with the standard 74LS logic family. All inputs are protected from damage due to static discharge by internal diode clamps to VCC and the ground.

Package Includes:

  • 1 x IC - 74HC373

Specifications:

Supply Voltage (VCC − 0.5 to + 7.0V  
Input Voltage (VIN)  −1.5VCC     + 1.5V
Output Voltage (VOUT)  − 0.5 to VCC + 0.5V
Clamp Diode Current (IIK, IOK)  ± 20 mA
DC Output Current, per pin (IOUT) ± 35 mA
 DC VCC or GND Current, per pin (ICC) ± 70 mA 
 Storage Temperature Range (TSTG) − 65°C to + 150°C 
Power Dissipation (PD) (Note 4)  600 mW
S.O. Package only  500 mW
Lead Temperature (TL) (Soldering 10 seconds)  260°C

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