Overview
The SN74HC595PWRG4, produced by Texas Instruments, is an 8-bit serial-in, parallel-out shift register with 3-state output registers. This device is part of the HC family of logic devices, designed for CMOS applications. It features a wide operating voltage range of 2 V to 6 V, making it versatile for various electronic systems. The shift register feeds an 8-bit D-type storage register, and both the shift register clock (SRCLK) and storage register clock (RCLK) are positive-edge triggered. This component is suitable for applications requiring serial-to-parallel data conversion and has high-current 3-state outputs capable of driving up to 15 LSTTL loads.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| VCC Supply Voltage | 2 | 5 | 6 | V |
| VIH High-Level Input Voltage (VCC = 2 V) | 1.5 | V | ||
| VIH High-Level Input Voltage (VCC = 4.5 V) | 3.15 | V | ||
| VIH High-Level Input Voltage (VCC = 6 V) | 4.2 | V | ||
| VIL Low-Level Input Voltage (VCC = 2 V) | 0.5 | V | ||
| VIL Low-Level Input Voltage (VCC = 4.5 V) | 1.35 | V | ||
| VIL Low-Level Input Voltage (VCC = 6 V) | 1.8 | V | ||
| ICC Power Consumption (Maximum) | 80 | μA | ||
| tpd Propagation Delay (SRCLK to QH') | 14 | 27 | 41 | ns |
| Output Drive at 5 V | ±6 | mA | ||
| TA Operating Free-Air Temperature | -40 | 85 | °C |
Key Features
- 8-bit serial-in, parallel-out shift register with 3-state output registers.
- Wide operating voltage range of 2 V to 6 V.
- High-current 3-state outputs can drive up to 15 LSTTL loads.
- Low power consumption: 80-μA (maximum) ICC.
- Low input current: 1 μA (maximum).
- ±6-mA output drive at 5 V.
- Shift register has direct clear (SRCLR) input.
- Separate clocks for shift and storage registers.
Applications
- Network switches.
- Power infrastructure.
- LED displays.
- Servers.
Q & A
- What is the operating voltage range of the SN74HC595PWRG4?
The operating voltage range is from 2 V to 6 V.
- How many LSTTL loads can the 3-state outputs drive?
The 3-state outputs can drive up to 15 LSTTL loads.
- What is the maximum power consumption of the SN74HC595PWRG4?
The maximum power consumption is 80 μA.
- What is the propagation delay from SRCLK to QH' at 5 V?
The propagation delay is typically 27 ns, with a maximum of 41 ns).
- What are the primary applications of the SN74HC595PWRG4?
The primary applications include network switches, power infrastructure, LED displays, and servers).
- Does the SN74HC595PWRG4 have a direct clear input?
Yes, the shift register has a direct clear (SRCLR) input).
- What is the output drive capability at 5 V?
The output drive capability is ±6 mA at 5 V).
- What are the clocking arrangements for the shift and storage registers?
There are separate clocks for both the shift and storage registers).
- What is the maximum operating temperature for the SN74HC595PWRG4?
The maximum operating temperature is 85°C).
- What is the input current requirement for the SN74HC595PWRG4?
The maximum input current is 1 μA).
