Octal D-Type Latch 3-State Output IC - 74HC373
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Octal D-Type Latch 3-State Output IC - 74HC373 The 74HC Series 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. Pinout: Pinout Of 74HC373 IC
- 8-bit transparent latch with 3-state outputs
- Wide operating voltage: 2V to 6V (3.3V/5V compatible)
- Drives up to 15 LS-TTL loads
- Ideal for bus interfacing and data latching
- Compatible with Arduino, Raspberry Pi (via level shifter)
- Low power CMOS technology with high noise immunity
- Transparent latch operation with Latch Enable control
- 3-state outputs for bus sharing
- Low power consumption
- High noise immunity
- Pin-compatible with 74LS series
| 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 |
What is the function of the 74HC373 IC?
It is an 8-bit transparent latch with 3-state outputs, used to store and isolate data on shared buses in digital systems.
Is the 74HC373 compatible with Arduino and Raspberry Pi?
Yes, it works with 5V Arduino boards and Raspberry Pi using logic level shifters for 3.3V compatibility.
How many TTL loads can the 74HC373 drive?
It can drive up to 15 LS-TTL loads due to its high output current capability.
What power supply voltage does the 74HC373 support?
It operates from 2V to 6V, supporting both 3.3V and 5V logic systems.
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About Octal D-Type Latch 3-State Output IC - 74HC373 by Iotcart
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Categorised under: 74HC IC Series› Integrated Circuits