74373 Octal D-Type Latch 3-State Output IC DIP-20
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The 74373 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 ground.
Features:-
• 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
Specifications:-
Parameter | Specification |
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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