The TC74HCT541AF is a high-speed CMOS octal buffer/line driver with 3-state outputs, fabricated with silicon gate C2MOS technology. This device is designed for driving heavily loaded data lines and memory address lines. The 3-state outputs allow the device to be effectively disconnected from the bus when not actively driving.

Applications

• Memory address drivers
• Data bus buffers
• Logic signal isolation
• Microprocessor systems
• Instrumentation and control systems

Features

• High-speed operation: tpd = 13 ns (typ.) at VCC = 5 V
• Low power dissipation: ICC = 4 μA (max) at Ta = 25°C
• Output drive capability: 15 LSTTL loads
• 3-state outputs for bus isolation
• Pin and function compatible with 74LS541
• Balanced propagation delays: tPLH ≈ tPHL

Benefits

• Improved system performance due to high-speed operation and strong output drive capability.
• Reduced power consumption compared to TTL devices.
• Prevention of bus contention with 3-state outputs.
• Easy replacement of existing 74LS541 devices.
• Consistent performance due to balanced propagation delays.

Additional Details

The TC74HCT541AF is supplied in a 20-pin SOIC (Small Outline Integrated Circuit) package. The device operates over a voltage range of 4.5V to 5.5V. The operating temperature range is -40°C to +85°C. The control inputs (OE1 and OE2) enable the outputs when low. Proper ESD precautions should be taken during handling.