Texas Instruments SN54AS823A 9-Bit Bus Interface Flip-Flops With 3-State Outputs 5962-8952501KA

The SN54AS823A is a 9-bit bus interface flip-flop designed for applications requiring 3-state outputs. It is functionally equivalent to AMD's AM29823 and AM29824, making it suitable for driving capacitive loads and low-impedance buses. The device features buffered control inputs to minimize DC loading effects and includes undershoot-protection circuitry for enhanced reliability. This flip-flop operates with a clock-enable (CLKEN) input that allows data to be latched on the rising edge of the clock (CLK) when CLKEN is low. The outputs can be placed in a high-impedance state via a buffered output-enable (OE) input, allowing for flexible bus interfacing without significant loading. The clear (CLR) input independently sets all outputs low, regardless of the clock state. The SN54AS823A is characterized for military temperature ranges from -55°C to 125°C, making it suitable for harsh environments. It is available in various package options, including plastic small-outline and ceramic chip carriers, providing versatility for different design requirements.