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SN54S374

Texas Instruments
Part Number SN54S374
Manufacturer Texas Instruments
Description OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS
Published Jan 17, 2020
Detailed Description SN54LS373, SN54LS374, SN54S373, SN54S374, SN74LS373, SN74LS374, SN74S373, SN74S374 OCTAL D-TYPE TRANSPARENT LATCHES AND ...
Datasheet PDF File SN54S374 PDF File

SN54S374
SN54S374

Overview
SN54LS373, SN54LS374, SN54S373, SN54S374, SN74LS373, SN74LS374, SN74S373, SN74S374 OCTAL D-TYPE TRANSPARENT LATCHES AND EDGE-TRIGGERED FLIP-FLOPS SDLS165B – OCTOBER 1975 – REVISED AUGUST 2002 D Choice of Eight Latches or Eight D-Type Flip-Flops in a Single Package D 3-State Bus-Driving Outputs D Full Parallel Access for Loading D Buffered Control Inputs D Clock-Enable Input Has Hysteresis to Improve Noise Rejection (’S373 and ’S374) D P-N-P Inputs Reduce DC Loading on Data Lines (’S373 and ’S374) description These 8-bit registers feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads.
The high-impedance 3-state and increased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for interface or pullup components.
These devices are particularly attractive for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.
The eight latches of the ’LS373 and ’S373 are transparent D-type latches, meaning that while the enable (C or CLK) input is high, the Q outputs follow the data (D) inputs.
When C or CLK is taken low, the output is latched at the level of the data that was set up.
SN54LS373, SN54LS374, SN54S373, SN54S374 .
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J OR W PACKAGE SN74LS373, SN74S374 .
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DW, N, OR NS PACKAGE SN74LS374 .
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DB, DW, N, OR NS PACKAGE SN74S373 .
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DW OR N PACKAGE (TOP VIEW) OC 1Q 1D 2D 2Q 3Q 3D 4D 4Q GND 1 2 3 4 5 6 7 8 9 10 20 VCC 19 8Q 18 8D 17 7D 16 7Q 15 6Q 14 6D 13 5D 12 5Q 11 C† † C for ’LS373 and ’S373; CLK for ’LS374 and ’S374.
SN54LS373, SN54LS374, SN54S373, SN54S374 .
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FK PACKAGE (TOP VIEW) 2D 3 2 1 20 19 4 18 8D 2Q 5 17 7D 3Q 6 16 7Q 3D 7 15 6Q 4D 8 14 6D 9 10 11 12 13 4Q 1D GND 1Q C† OC 5Q VCC 5D 8Q The eight flip-flops of the ’LS374 and ’S374 are edge-triggered D-type flip-flops.
On the positive transition of the clock, the Q outputs are set to th...


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