Overview
The 74HCT08DB,112, produced by NXP Semiconductors, is a quad 2-input AND gate integrated circuit. This component is part of the 74HCT series, which is known for its high-speed Si-Gate CMOS technology. The 74HCT08 is designed to provide low power dissipation and high noise immunity, making it suitable for a variety of digital logic applications. The device includes clamp diodes on the inputs, allowing the use of current limiting resistors to interface inputs to voltages beyond the supply voltage (VCC).
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VCC) | 2.0 | - | 6.0 | V |
| Input Voltage Levels | - | - | - | - |
| VIH (HIGH-level input voltage) | 2.0 | - | 2.0 | V (VCC = 4.5 V to 5.5 V) |
| VIL (LOW-level input voltage) | 0.8 | - | 1.2 | V (VCC = 4.5 V to 5.5 V) |
| Output Voltage Levels | - | - | - | - |
| VOH (HIGH-level output voltage) | 3.98 | - | 4.32 | V (IO = -4.0 mA) |
| VOL (LOW-level output voltage) | 0.15 | - | 0.26 | V (IO = 5.2 mA) |
| Propagation Delay (tpd) | 14 | 24 | 36 | ns (VCC = 4.5 V) |
| Transition Time (tt) | 7 | 15 | 22 | ns (VCC = 4.5 V) |
| Operating Temperature | -40 | - | 125 | °C |
| Package Type | - | - | - | 14-SSOP |
Key Features
- Wide Supply Voltage Range: From 2.0 V to 6.0 V, making it versatile for various applications.
- CMOS Low Power Dissipation: Reduces power consumption, ideal for battery-powered devices.
- High Noise Immunity: Ensures reliable operation in noisy environments.
- Latch-up Performance: Exceeds 100 mA per JESD 78 Class II Level B.
- Input Levels:
- For 74HC08: CMOS level.
- For 74HCT08: TTL level.
- ESD Protection:
- HBM: ANSI/ESDA/JEDEC JS-001 class 2 exceeds 2000 V.
- CDM: ANSI/ESDA/JEDEC JS-002 class C3 exceeds 1000 V.
- Multiple Package Options: Available in various packages including SSOP and SOIC.
- Compliance with JEDEC Standards: JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V).
Applications
The 74HCT08DB,112 is suitable for a wide range of digital logic applications, including:
- Digital Logic Circuits: Used in AND gate logic functions within digital circuits.
- Automotive Systems: Qualified for automotive use due to its robust specifications and temperature range.
- Industrial Control Systems: Ideal for use in industrial environments due to its high noise immunity and reliability.
- Consumer Electronics: Used in various consumer electronic devices requiring low power and high reliability.
Q & A
- What is the supply voltage range of the 74HCT08DB,112?
The supply voltage range is from 2.0 V to 6.0 V.
- What are the input voltage levels for the 74HCT08?
The input voltage levels are TTL compatible, with VIH (HIGH-level input voltage) between 2.0 V and VCC, and VIL (LOW-level input voltage) between 0.8 V and 1.2 V when VCC is between 4.5 V and 5.5 V.
- What is the propagation delay of the 74HCT08DB,112?
The propagation delay (tpd) is between 14 ns and 36 ns at VCC = 4.5 V.
- What is the operating temperature range of the 74HCT08DB,112?
The operating temperature range is from -40 °C to +125 °C.
- What type of ESD protection does the 74HCT08DB,112 have?
The device has HBM ESD protection exceeding 2000 V and CDM ESD protection exceeding 1000 V.
- What are the package options available for the 74HCT08DB,112?
The device is available in 14-SSOP and other package types.
- Is the 74HCT08DB,112 compliant with JEDEC standards?
Yes, it complies with JESD8C (2.7 V to 3.6 V) and JESD7A (2.0 V to 6.0 V) standards.
- What is the typical power dissipation of the 74HCT08DB,112?
The device has low CMOS power dissipation, with ICC (supply current) typically around 2.0 μA to 40 μA at VCC = 5.5 V.
- Can the 74HCT08DB,112 be used in automotive applications?
Yes, it is qualified for automotive use.
- What is the significance of the clamp diodes on the inputs of the 74HCT08DB,112?
The clamp diodes allow the use of current limiting resistors to interface inputs to voltages beyond VCC.
