SN54LVC74A, SN74LVC74A DUAL POSITIVE-EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH CLEAR AND PRESET

SCAS287G - JANUARY 1993 - REVISED JANUARY 1998

features

• EPIC^TM (Enhanced-Performance Implanted CMOS) Submicron Process
• 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 250 mA Per JESD 17
• Typical V_OLP (Output Ground Bounce) < 0.8 V at V_CC = 3.3 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot) > 2 V at V_CC = 3.3 V, T_A = 25°C
• Inputs Accept Voltages to 5.5 V
• Package Options Include Plastic Small-Outline (D), Shrink Small-Outline (DB), Thin Shrink Small-Outline (PW), and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and 300-mil DIPs (J)

EPIC is a trademark of Texas Instruments Incorporated.

description

These dual positive-edge-triggered D-type flip-flops are designed for 2.7-V to 3.6-V V_CC operation.

A low level at the preset (PRE\) or clear (CLR\) inputs sets or resets the outputs, regardless of the levels of the other inputs. When PRE\ and CLR\ are inactive (high), data at the data (D) input meeting the setup time requirements is transferred to the outputs on the positive-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the rise time of the clock pulse. Following the hold-time interval, data at the D input can be changed without affecting the levels at the outputs.

Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators in a mixed 3.3-V/5-V system environment.

The SN54LVC74A is characterized for operation over the full military temperature range of -55°C to 125°C. The SN74LVC74A is characterized for operation from -40°C to 85°C.

View more information about generic part numbers:SN74LVC74A

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