The 74ACT841SC is a high-speed, advanced CMOS octal transparent latch with 3-STATE outputs manufactured by Fairchild/ON Semiconductor. It is designed for high-performance memory applications, data bus interface, and control logic circuits. This device features a flow-through architecture for easy addressability and is pin-compatible with bipolar logic circuits, offering significant power savings while maintaining speed.
Applications:
- Memory address drivers
- Clock drivers
- Bus-oriented applications
- Microprocessor systems
- Data bus buffering
Features:
- High-speed operation: tpd = 5.0 ns (typical) at VCC = 5V
- Low power consumption: ICC = 8 μA (maximum) at VCC = 5V
- 3-STATE outputs drive bus lines directly
- TTL compatible inputs
- Outputs source/sink 24mA
- ESD protection exceeds 2000V human body model
- Operating temperature range: -40°C to +85°C
Benefits:
- Improved system performance due to high-speed operation
- Reduced power consumption compared to bipolar logic, leading to energy savings and lower operating costs
- Direct interface with TTL logic, simplifying system design
- Enhanced system reliability due to robust ESD protection
- Versatile for use in a wide range of applications due to its 3-STATE outputs and TTL compatibility
Additional Details:
The 74ACT841SC features eight transparent latches with 3-STATE outputs. When the Latch Enable (LE) input is HIGH, the Q outputs follow the data (D) inputs. When LE is LOW, the Q outputs are latched until LE returns HIGH. The Output Enable (OE) input controls the 3-STATE outputs. When OE is LOW, the outputs are enabled. When OE is HIGH, the outputs are in the high-impedance state. The device is available in a variety of packages, including SOIC and DIP. Its CMOS design ensures low power consumption and high noise immunity.