Overview
The 74HC595DTR2G, produced by ON Semiconductor, is a high-performance silicon-gate CMOS integrated circuit that functions as an 8-bit serial-input/serial or parallel-output shift register with latched 3-state outputs. This device is part of the 74HC series and is designed to operate over a wide voltage range from 2.0V to 6.0V. It consists of an 8-bit shift register and an 8-bit D-type latch, allowing for both serial and parallel data output. The device is particularly useful for interfacing with the SPI serial data port on CMOS microprocessors and microcontrollers.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Operating Voltage Range | 2.0 to 6.0 | V |
| Maximum Clock Frequency | 6.0 to 35 | MHz |
| Maximum Propagation Delay, Shift Clock to SQH | 24 to 210 | ns |
| Minimum Setup Time, Serial Data Input A to Shift Clock | 9.0 to 75 | ns |
| Minimum Hold Time, Shift Clock to Serial Data Input A | 5.0 | ns |
| Maximum Input Leakage Current | ±1.0 | μA |
| Maximum Quiescent Supply Current | 40 to 160 | μA |
| Output Drive Capability | 15 LSTTL Loads | |
| ESD Performance | HBM ≥ 2000 V; Machine Model ≥ 200 V |
Key Features
- Outputs directly interface to CMOS, NMOS, and TTL.
- Low input current: 1.0 μA.
- High noise immunity characteristic of CMOS devices.
- In compliance with the requirements defined by JEDEC Standard No. 7A.
- Improved propagation delays and 50% lower quiescent power compared to the HC595.
- Improved input noise and latchup immunity.
- Pb-free, halogen-free, and RoHS compliant.
- Asynchronous reset for the shift register.
- Independent clock inputs for the shift register and latch.
Applications
The 74HC595DTR2G is suitable for a wide range of applications, including but not limited to:
- Microcontroller and microprocessor interfaces, particularly those using the SPI protocol.
- Display drivers and LED drivers where serial data needs to be converted to parallel output.
- Automotive and industrial control systems requiring robust and low-power logic devices.
- General-purpose digital logic circuits where serial-to-parallel conversion is necessary.
Q & A
- What is the operating voltage range of the 74HC595DTR2G?
The operating voltage range is from 2.0V to 6.0V. - What is the maximum clock frequency for the 74HC595DTR2G?
The maximum clock frequency ranges from 6.0 MHz to 35 MHz depending on the voltage. - Does the 74HC595DTR2G have an asynchronous reset?
Yes, the device has an asynchronous reset for the shift register. - Can the 74HC595DTR2G interface with CMOS, NMOS, and TTL devices?
Yes, the outputs directly interface with CMOS, NMOS, and TTL devices. - What is the ESD performance of the 74HC595DTR2G?
The ESD performance is HBM ≥ 2000 V and Machine Model ≥ 200 V. - Is the 74HC595DTR2G Pb-free and RoHS compliant?
Yes, the device is Pb-free, halogen-free, and RoHS compliant. - What is the maximum quiescent supply current for the 74HC595DTR2G?
The maximum quiescent supply current ranges from 40 μA to 160 μA. - Does the 74HC595DTR2G have independent clock inputs for the shift register and latch?
Yes, the device has independent clock inputs for the shift register and latch. - What is the output drive capability of the 74HC595DTR2G?
The output drive capability is 15 LSTTL loads. - What are the typical applications of the 74HC595DTR2G?
Typical applications include microcontroller and microprocessor interfaces, display drivers, and general-purpose digital logic circuits.
