Overview
The CD74HC597M96E4 is a high-speed silicon gate CMOS device produced by Texas Instruments. It is part of the CD74HC597 series, which includes pin-compatible devices with the LSTTL 597 devices. This component is an 8-bit parallel-in/serial-in, serial-out shift register with an 8-flip-flop input register. Each register is controlled by its own clock, allowing for asynchronous parallel load and serial shifting of data. The device operates over a wide temperature range and offers significant power reduction compared to LSTTL logic ICs.
Key Specifications
| Parameter | Symbol | Test Conditions | Units | Min | Max | |
|---|---|---|---|---|---|---|
| DC Supply Voltage | VCC | - | V | -0.5 | - | 7 |
| High Level Input Voltage | VIH | VCC = 2V to 6V | V | - | 2 | - |
| Low Level Input Voltage | VIL | VCC = 2V to 6V | V | 0.5 | - | - |
| High Level Output Voltage (CMOS Loads) | VOH | VCC = 2V to 6V | V | 1.9 | - | - |
| Low Level Output Voltage (CMOS Loads) | VOL | VCC = 2V to 6V | V | - | 0.1 | - |
| Input Leakage Current | II | VCC or GND | µA | - | ±1 | - |
| Quiescent Device Current | ICC | VCC or GND | µA | - | 80 | - |
| SHCP Frequency | fMAX | VCC = 2V to 6V | MHz | - | 35 | - |
| Propagation Delay (CL = 50pF) | tPLH, tPHL | VCC = 2V to 6V | ns | - | 265 | - |
Key Features
- Buffered inputs and asynchronous parallel load capability.
- Wide operating temperature range: -55°C to 125°C.
- Balanced propagation delay and transition times.
- Significant power reduction compared to LSTTL logic ICs.
- HC types operate from 2V to 6V with high noise immunity.
- HCT types operate from 4.5V to 5.5V with direct LSTTL input logic compatibility.
- CMOS input compatibility with low input current (≤1µA at VOL, VOH).
- Fanout capability: up to 10 LSTTL loads for standard outputs and up to 15 LSTTL loads for bus driver outputs.
Applications
The CD74HC597M96E4 is suitable for various digital circuit applications requiring high-speed data shifting and storage. It can be used in:
- Serial data transmission systems.
- Parallel-to-serial data conversion circuits.
- Shift registers in digital counters and timers.
- Buffering and storage in digital logic circuits.
- Industrial control systems requiring wide temperature operation.
Q & A
- What is the operating temperature range of the CD74HC597M96E4?
The operating temperature range is -55°C to 125°C. - What is the voltage range for HC types of this device?
The HC types operate from 2V to 6V. - What is the voltage range for HCT types of this device?
The HCT types operate from 4.5V to 5.5V. - What is the maximum SHCP frequency for this device?
The maximum SHCP frequency is up to 35 MHz at VCC = 6V. - What is the propagation delay for this device?
The propagation delay is up to 265 ns for CL = 50pF at VCC = 6V. - What is the input leakage current of this device?
The input leakage current is ±1 µA. - What is the quiescent device current of this device?
The quiescent device current is up to 80 µA. - What are the fanout capabilities of this device?
The device can drive up to 10 LSTTL loads for standard outputs and up to 15 LSTTL loads for bus driver outputs. - Is the CD74HC597M96E4 RoHS compliant?
Yes, the CD74HC597M96E4 is RoHS compliant. - What package types are available for the CD74HC597M96E4?
The device is available in SOIC (D) package.
