Overview
The 74HC194DB/DG,118 is a 4-bit bidirectional universal shift register produced by Nexperia USA Inc. This component is part of the 74HC/HCT family and is designed for a wide range of applications requiring serial-to-parallel or parallel-to-serial data conversion. The device features bidirectional shifting, allowing data to be shifted in either direction (left or right), and it includes both serial and parallel input/output capabilities.
Key Specifications
| Parameter | Description |
|---|---|
| Type Number | 74HC194DB/DG,118 |
| Package | SSOP16 (Shrink Small Outline Package, 16 leads, 0.65 mm pitch, 6.2 mm x 5.3 mm x 2 mm body) |
| Supply Voltage Range | 2.0 V to 6.0 V |
| Operating Temperature Range | -40 °C to +85 °C and -40 °C to +125 °C |
| Input Levels | CMOS level for 74HC194, TTL level for 74HCT194 |
| 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 B |
Key Features
- Bidirectional shifting capability (left or right)
- Serial and parallel input/output options
- Independent direct clear and clock inputs for each register
- CMOS low power dissipation
- High noise immunity
- Compliance with JEDEC standards (JESD8C and JESD7A)
- Multiple package options (though the specified part is in SSOP16 package)
Applications
- Serial-to-parallel and parallel-to-serial data conversion
- Remote control holding registers
- Automotive and industrial applications
- Mobile and consumer electronics
Q & A
- What is the primary function of the 74HC194DB/DG,118?
The primary function is to act as a 4-bit bidirectional universal shift register, enabling serial-to-parallel and parallel-to-serial data conversion.
- What are the input levels for the 74HC194 and 74HCT194?
The input levels are CMOS for the 74HC194 and TTL for the 74HCT194.
- What is the supply voltage range for this component?
The supply voltage range is from 2.0 V to 6.0 V.
- What are the operating temperature ranges for this component?
The operating temperature ranges are -40 °C to +85 °C and -40 °C to +125 °C.
- What kind of ESD protection does the 74HC194DB/DG,118 offer?
The component offers HBM protection exceeding 2000 V and CDM protection exceeding 1000 V.
- What is the latch-up performance of this component?
The latch-up performance exceeds 100 mA per JESD 78 Class II Level B.
- What are some common applications for the 74HC194DB/DG,118?
Common applications include serial-to-parallel and parallel-to-serial data conversion, remote control holding registers, and various automotive, industrial, mobile, and consumer electronics.
- What package options are available for the 74HC194?
Although the specified part is in SSOP16, other package options include SO16 and other variants.
- Does the component comply with any specific standards?
Yes, it complies with JEDEC standards (JESD8C and JESD7A).
- What is the status of the 74HC194DB/DG,118 part?
The part is listed as obsolete or end-of-life.
