Description

The TC74HC652AP is an octal bus transceiver fabricated with silicon gate C2MOS technology. It achieves high-speed operation similar to equivalent LSTTL while maintaining low power dissipation. This component is intended for two-way asynchronous communication between data buses and allows the direction of data transmission to be determined by the level of the DIR input. It also has an enable input (G) that can disable the device to effectively isolate the buses. All inputs are equipped with protection circuits against static discharge or transient excess voltage.

Specifications and features

• High speed: tpd = 10 ns (typ.) at VCC = 5V
• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
• High noise immunity: VNIH = VNIL = 28% VCC (min)
• Output drive capability: 15 LSTTL loads
• Symmetrical output impedance: |IOH| = IOL = 6 mA (min)
• Balanced propagation delays: tpLH ∼ − tpHL
• Wide operating voltage range: VCC (opr) = 2~6 V
• Pin and function compatible with 74LS245/640

Application Scenarios

This electronic component model, TC74HC652AP, can be used in various scenarios that require octal bus transceivers for two-way asynchronous communication between data buses. It is compatible with similar models such as 74LS245/640 and has a wide operating voltage range of 2-6V.

Comparison

• High speed operation
• Low power dissipation
• High noise immunity
• Wide operating voltage range

• No specific disadvantages identified