Overview
The 74AHCT595D,118 is an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs, manufactured by Nexperia USA Inc. This device is part of the 74AHCT series and is designed for various shift register applications. It features separate clocks for both the shift and storage registers, enabling flexible data manipulation. The device includes a serial input (DS), a serial output (Q7S) for cascading, and an asynchronous reset input (MR). The output enable input (OE) allows the outputs to be set to a high-impedance OFF-state when HIGH, without affecting the state of the registers.
Key Specifications
| Parameter | Value |
|---|---|
| Type | 8-bit serial-in/serial or parallel-out shift register |
| Package | 16-SOIC (SOT109-1) |
| Supply Voltage Range | 2.0 V to 5.5 V |
| Input Levels | TTL compatible |
| ESD Protection | HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V |
| Latch-up Performance | Exceeds 100 mA per JESD 78 Class II Level A |
| Operating Temperature Range | -40 °C to +85 °C and -40 °C to +125 °C |
| Clock Inputs | SHCP and STCP |
| Reset Input | MR (asynchronous) |
| Output Enable Input | OE |
Key Features
- Separate clocks for shift and storage registers
- Serial input (DS) and serial output (Q7S) for cascading
- Asynchronous reset input (MR)
- Output enable input (OE) with 3-state outputs
- Overvoltage tolerant inputs up to 5.5 V
- High noise immunity and balanced propagation delays
- CMOS low power dissipation
- Schmitt-trigger action on all inputs
Applications
The 74AHCT595D,118 is versatile and can be used in a variety of applications across different industries, including:
- Automotive systems
- Industrial control systems
- Consumer electronics
- Mobile and wearable devices
- Power and computing systems
Q & A
- What is the primary function of the 74AHCT595D,118? The primary function is to act as an 8-bit serial-in/serial or parallel-out shift register with a storage register and 3-state outputs.
- What is the supply voltage range for this device? The supply voltage range is from 2.0 V to 5.5 V.
- What type of input levels does the 74AHCT595D,118 support? The device supports TTL compatible input levels.
- How does the output enable input (OE) function? The OE input sets the outputs to a high-impedance OFF-state when HIGH, without affecting the state of the registers.
- What is the package type for the 74AHCT595D,118? The package type is 16-SOIC (SOT109-1).
- What are the operating temperature ranges for this device? The operating temperature ranges are -40 °C to +85 °C and -40 °C to +125 °C.
- Does the 74AHCT595D,118 have ESD protection? Yes, it has ESD protection exceeding 2000 V for HBM and 1000 V for CDM.
- What are the clock inputs for this shift register? The clock inputs are SHCP and STCP.
- How does the asynchronous reset input (MR) function? A LOW on MR will reset the shift register.
- What industries can this device be applied to? It can be applied to automotive, industrial, consumer electronics, mobile, and power and computing systems.
