SN74GTL16821
20-BIT FLIP-FLOPWITH GTL I/O LEVELS

SCBS265 - JULY 1993

features

• EPIC-IIB^TM (Enhanced-Performance Implanted CMOS) Submicron Process
• Members of the Texas Instruments Widebus^TM Family
• Provides GTL Signals Levels on Both Inputs and Outputs
• ESD Protection Exceeds 2000 V Per MIL-STD-883C, Method 3015; Exceeds 200 V Using Machine Model (C = 200 pF, R = 0)
• Distributed V_CC and GND Pin Configuration Minimizes High-Speed Switching Noise
• Flow-Through Architecture Optimizes PCB Layout
• Latch-Up Performance Exceeds 500 mA Per JEDEC Standard JESD-17
• Packaged in Plastic 300-mil Shrink Small-Outline and Thin Shrink Small-Outline Packages

EPIC-IIB and Widebus are trademarks of Texas Instruments Incorporated.

description

The SN74GTL16821 has 20 single-bit flip-flops which are designed to provide terminated GTL logic levels.

The device can be used as two 10-bit flip-flops or one 20-bit flip-flop. The 20 flip-flops are edge-triggered D-type flip-flops. The SN74GTL16821 provides true data at the Q outputs on the positive transition of the clock (CLK) input.

The output-enable () input can be used to place the outputs in a high state.The output-enable input does not affect the internal operation of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.

The SN74GTL16821 is available in TI's shrink small-outline package (DL), which provides twice the I/O pin count and functionality of standard small-outline packages in the same printed-circuit-board area.

The SN74GTL16821 is characterized for operation from 0°C to 70°C.