Professional IC Distribution & Technical Solutions

The 74HC640AP is a high-speed CMOS octal bus transceiver with 3-state outputs, manufactured by Toshiba (TOS).

Key Specifications:

• Logic Family: 74HC
• Type: Octal Bus Transceiver (8-bit)
• Supply Voltage (VCC): 2V to 6V
• Operating Temperature Range: -40°C to +85°C
• High-Level Input Voltage (VIH): 3.15V (min) @ VCC = 4.5V
• Low-Level Input Voltage (VIL): 1.35V (max) @ VCC = 4.5V
• High-Level Output Current (IOH): -5.2mA @ VCC = 4.5V
• Low-Level Output Current (IOL): 5.2mA @ VCC = 4.5V
• Propagation Delay (tpd): 16ns (max) @ VCC = 4.5V
• Package: DIP-20 (Plastic Dual In-Line Package)

Descriptions:

The 74HC640AP is a bidirectional transceiver that allows data transmission between two buses (A and B) in either direction, controlled by the DIR (direction) input. The OE (output enable) pin enables/disables the outputs.

Features:

• Bidirectional Data Flow: Controlled by DIR pin.
• 3-State Outputs: Allows bus isolation when disabled.
• High-Speed Operation: Optimized for low propagation delay.
• Wide Operating Voltage: 2V to 6V.
• Low Power Consumption: CMOS technology ensures low power dissipation.
• ESD Protection: HBM (Human Body Model) ≥ 2000V.

This device is commonly used in bus interface applications, data communication systems, and microprocessor-based designs.

(Note: Always refer to the official Toshiba datasheet for detailed specifications.)