Overview
The HEF4557BT,653 is a 1-to-64 bit variable length shift register manufactured by Nexperia USA Inc. This integrated circuit is part of the 4000B series and is designed for versatile use in digital circuits. It operates as a static clocked serial shift register, allowing the length of the register to be programmed between 1 and 64 bits using specific length control inputs. The device supports serial data input from either DA or DB inputs, selectable via the A/B select input, which is particularly useful for recirculation purposes.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Nexperia USA Inc. |
| Part Number | HEF4557BT,653 |
| Package | 16-SOIC (0.154", 3.90mm Width) |
| Voltage - Supply | 3 V to 15 V |
| Operating Temperature | -40°C to +85°C |
| Number of Bits per Element | 1 to 64 bits |
| Mounting Type | Surface Mount |
| Logic Type | Shift Register |
| Function | Universal |
| Output Type | Complementary |
Key Features
- Fully static operation
- 5 V, 10 V, and 15 V parametric ratings
- Standardized symmetrical output characteristics
- Specified from -40°C to +85°C
- Complies with JEDEC standard JESD 13-B
- Programmable length between 1 and 64 bits using length control inputs (L1, L2, L4, L8, L16, and L32)
- Serial data input selectable from DA or DB inputs via A/B select input
- Master reset (MR) input to reset the register
Applications
The HEF4557BT,653 is versatile and can be used in a variety of digital circuit applications, including:
- Serial data processing and transmission systems
- Digital counters and timers
- Shift register applications in microcontrollers and embedded systems
- Recirculation and data buffering in digital circuits
- General-purpose digital logic circuits requiring programmable shift register functionality
Q & A
- What is the HEF4557BT,653?
The HEF4557BT,653 is a 1-to-64 bit variable length shift register manufactured by Nexperia USA Inc.
- What is the package type of the HEF4557BT,653?
The package type is 16-SOIC (0.154", 3.90mm Width).
- What is the operating voltage range of the HEF4557BT,653?
The operating voltage range is 3 V to 15 V.
- What is the operating temperature range of the HEF4557BT,653?
The operating temperature range is -40°C to +85°C.
- How is the length of the shift register programmed?
The length is programmed using the length control inputs (L1, L2, L4, L8, L16, and L32).
- Can the HEF4557BT,653 select data from different inputs?
Yes, it can select serial data from either DA or DB inputs via the A/B select input.
- What is the function of the master reset (MR) input?
The master reset (MR) input resets the register and forces Q to LOW and Q to HIGH, independent of other inputs.
- Is the HEF4557BT,653 compliant with any industry standards?
Yes, it complies with the JEDEC standard JESD 13-B.
- What are some common applications of the HEF4557BT,653?
Common applications include serial data processing, digital counters, shift register applications in microcontrollers, and general-purpose digital logic circuits.
- How is the HEF4557BT,653 typically mounted?
It is a surface mount device.
