SN54BCT374, SN74BCT374 OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS

SCBS019B - SEPTEMBER 1988 - REVISED APRIL 1994

features

State-of-the-Art BiCMOS Design Significantly Reduces I_CC
Full Parallel Access for Loading
Buffered Control Inputs
3-State True Outputs Drive Bus Lines or Buffer Memory Address Registers
ESD Protection Exceeds 2000 V Per MIL-Std-883C, Method 3015
Package Options Include Plastic Small-Outline (DW) and Shrink Small-Outline (DB) Packages, Ceramic Chip Carriers (FK) and Flatpacks (W), and Standard Plastic and Ceramic 300-mil DIPs (J, N)

description

These 8-bit flip-flops feature 3-state outputs designedspecifically for driving highly capacitive or relativelylow-impedance loads. They are particularly suitable for implementingbuffer registers, I/O ports, bidirectional bus drivers, and workingregisters.

The eight flip-flops of the ´BCT374 are edge-triggered D-typeflip-flops. On the positive transition of the clock (CLK) input, theQ outputs are set to the logic levels that were set up at the data(D) inputs.

A buffered output-enable () input can be used to place the eight outputs in eithera normal logic state (high or low) or a high-impedance state. In thehigh-impedance state, the outputs neither load nor drive the buslines significantly. The high-impedance state and the increased driveprovide the capability to drive bus lines without need for interfaceor pullup components. The output-enable () input does not affect internaloperations of the flip-flop. Old data can be retained or new data canbe entered while the outputs are in the high-impedance state.

The SN54BCT374 is characterized for operation over the fullmilitary temperature range of -55°C to 125°C. TheSN74BCT374 is characterized for operation from 0°C to 70°C.

Title: OCTAL EDGE-TRIGGERED D-TYPE FLIP-FLOPS WITH 3-STATE OUTPUTS
Product Family: D-TYPE (3-STATE) FLIP-FLOPS
Device Functionality: D-TYPE
Orderable Devices: SNJ54BCT374FK, SNJ54BCT374J, SNJ54BCT374W, SN74BCT374DBLE, SN74BCT374DW, SN74BCT374DWR, SN74BCT374N

View the complete PDF datasheet: scbs019b.pdf (70 K Bytes) (Requires Acrobat Reader 3.x)

View more information about generic part numbers:SN54BCT374, SN74BCT374

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