Overview
The 74HC688D,653 from Nexperia USA Inc. is an 8-bit magnitude comparator integrated circuit. This device is designed to perform comparisons of two 8-bit binary or BCD words. It features CMOS input levels and is known for its low power dissipation and high noise immunity. The 74HC688D is part of the 74HC family, which is widely used in various electronic designs due to its versatility and reliability.
Key Specifications
| Type number | VCC (V) | Logic switching levels | Output drive capability (mA) | tpd (ns) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HC688D | 2.0 - 6.0 | CMOS | ± 5.2 | 17 | 8 | low | -40 ~ 125 | 82 | 24.3 | 58 | SO20 (SOT163-1) |
Key Features
- Comparison Capability: Compares two 8-bit binary or BCD words.
- Wide Supply Voltage Range: Operates from 2.0 V to 6.0 V.
- CMOS Input Levels: Compatible with CMOS logic levels.
- Low Power Dissipation: Low power consumption, making it suitable for energy-efficient designs.
- High Noise Immunity: Provides high noise immunity for reliable operation in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- ESD Protection: HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V, CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- Temperature Range: Specified from -40 °C to +85 °C and from -40 °C to +125 °C.
Applications
The 74HC688D is versatile and can be used in a variety of applications across different industries, including:
- Automotive Systems: For comparison and logic operations in automotive electronics.
- Industrial Control Systems: In industrial automation and control systems where reliable comparison logic is required.
- Consumer Electronics: In consumer devices that require binary or BCD word comparisons.
- Computing and Data Processing: For use in computing systems that need to perform magnitude comparisons.
- Medical Devices: In medical equipment where precise and reliable comparison logic is critical.
Q & A
- What is the primary function of the 74HC688D?
The primary function of the 74HC688D is to compare two 8-bit binary or BCD words.
- What is the supply voltage range for the 74HC688D?
The supply voltage range is from 2.0 V to 6.0 V.
- What type of logic levels does the 74HC688D use?
The 74HC688D uses CMOS logic levels.
- What is the output drive capability of the 74HC688D?
The output drive capability is ± 5.2 mA.
- What is the propagation delay time (tpd) of the 74HC688D?
The propagation delay time is 17 ns.
- What is the operating temperature range for the 74HC688D?
The operating temperature range is from -40 °C to +125 °C.
- Does the 74HC688D have ESD protection?
- What package types are available for the 74HC688D?
The 74HC688D is available in SO20 (SOT163-1) and TSSOP20 (SOT360-1) packages.
- Is the 74HC688D compliant with any specific standards?
- What industries can the 74HC688D be used in?
The 74HC688D can be used in automotive, industrial, consumer electronics, computing, and medical device applications.
