These 9-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing wider buffer registers, I/O ports, bidirectional bus drivers with parity, and working registers.

With the clock-enable (CLKEN\) input low, the nine D-type edge-triggered flip-flops enter data on the low-to-high transitions of the clock. Taking CLKEN\ high disables the clock buffer, thus latching the outputs. Taking the clear (CLR\) input low causes the nine Q outputs to go low, independently of the clock.

A buffered output-enable (OE\) input can be used to place the nine outputs in either a normal logic state (high or low logic level) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus lines without need for interface or pullup components.

When V_CC is between 0 and 2.1 V, the device is in the high-impedance state during power up or power down. However, to ensure the high-impedance state above 2.1 V, OE\ should be tied to V_CC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

The SN54ABT823 is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74ABT823 is characterized for operation from -40°C to 85°C.

• State-of-the-Art EPIC-II BTM BiCMOS Design Significantly Reduces Power Dissipation
• ESD Protection Exceeds 2000 V Per MIL-STD-883, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
• Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
• Typical VOLP (Output Ground Bounce) < 1 V at VCC = 5 V, TA = 25°C
• High-Impedance State During Power Up and Power Down
• High-Drive Outputs (-32-mA IOH, 64-mA IOL)
• Buffered Control Inputs to Reduce dc Loading Effects
• Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic (NT) and Ceramic (JT) DIPs

EPIC-IIB is a trademark of Texas Instruments Incorporated.

• Number of channels (#)
• 9
• Technology Family
• ABT
• Supply voltage (Min) (V)
• 4.5
• Supply voltage (Max) (V)
• 5.5
• Input type
• TTL-Compatible CMOS
• Output type
• 3-State
• Clock Frequency (Max) (MHz)
• 150
• IOL (Max) (mA)
• 48
• IOH (Max) (mA)
• -24
• ICC (Max) (uA)
• 38000
• Features
• Very high speed (tpd 5-10ns), Partial power down (Ioff)

SN54ABT823的完整型号有：5962-9450801Q3A、SNJ54ABT823FK，以下是这些产品的关键参数及官网采购报价：

5962-9450801Q3A，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网5962-9450801Q3A的批量USD价格：33.315（1000+）

SNJ54ABT823FK，工作温度：-55 to 125，封装：LCCC (FK)-28，包装数量MPQ：1个，MSL 等级/回流焊峰值温度：N/A for Pkg Type，引脚镀层/焊球材料：SNPB，TI官网SNJ54ABT823FK的批量USD价格：33.315（1000+）