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D - Type Integrated Circuit IC Chip Tri - State Non - Inverted SN74HCT374

D - Type Integrated Circuit IC Chip Tri - State Non - Inverted SN74HCT374

Model Number : SN74HCT374
Part Status : Active
Function : Standard
Type : D-Type
Output Type : Tri-State, Non-Inverted
Number of Elements : 1
Number of Bits per Element : 8
Clock Frequency : 40MHz
Max Propagation Delay @ V, Max CL : 41ns @ 5.5V, 150pF
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SN74HCT374 Integrated Circuit IC Chip IC D-TYPE POS TRG SNGL 20DIP

Part StatusActive
FunctionStandard
TypeD-Type
Output TypeTri-State, Non-Inverted
Number of Elements1
Number of Bits per Element8
Clock Frequency40MHz
Max Propagation Delay @ V, Max CL41ns @ 5.5V, 150pF
Trigger TypePositive Edge
Current - Output High, Low6mA, 6mA
Voltage - Supply4.5 V ~ 5.5 V
Current - Quiescent (Iq)8µA
Input Capacitance3pF
Operating Temperature-40°C ~ 85°C (TA)
Mounting TypeThrough Hole
Package / Case20-DIP (0.300", 7.62mm)
Base Part Number74HCT374

Operating Voltage Range of 4.5 V to 5.5 V

High-Current 3-State True Outputs Can Drive Up To 15 LSTTL Loads

Low Power Consumption, 80-mA Max ICC

Typical tpd = 22 ns

• ±6-mA Output Drive at 5 V

Low Input Current of 1 mA Max

Inputs Are TTL-Voltage Compatible

Eight D-Type Flip-Flops in a Single Package

Full Parallel Access for Loading

description/ordering information

These 8-bit flip-flops feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and


SN54HCT374 ...J OR W PACKAGE SN74HCT374 . . . DB, DW, N, NS, OR PW PACKAGE

(TOP VIEW)


OE120VCC
1Q2198Q
1D3188D
2D4177D
2Q5167Q
3Q6156Q
3D7146D
4D8135D
4Q9125Q
GND1011CLK

SN54HCT374 . . . FK PACKAGE (TOP VIEW)


working registers. 2D 8D

The eight flip-flops of the ’HCT374 devices are 2Q 7D

edge-triggered D-type flip-flops. On the positive 3Q 7Q

transition of the clock (CLK) input, the Q outputs 3D 6Q

are set to the logic levels that were set up at the 4D 6D


data (D) inputs.

An output-enable (OE) input places the eight outputs in either a normal logic state (high or low

logic levels) or the 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 interface or pullup components.

ORDERING INFORMATION

TAPACKAGEORDERABLE PART NUMBERTOP-SIDE MARKING

−40°C to 85°C

PDIP − NTube of 20SN74HCT374NSN74HCT374N

SOIC − DW

Tube of 25SN74HCT374DW

HCT374

Reel of 2000SN74HCT374DWR
SOP − NSReel of 2000SN74HCT374NSRHCT374
SSOP − DBReel of 2000SN74HCT374DBRHT374

TSSOP − PW

Tube of 70SN74HCT374PW

HT374

Reel of 2000SN74HCT374PWR
Reel of 250SN74HCT374PWT

−55°C to 125°C

CDIP − JTube of 20SNJ54HCT374JSNJ54HCT374J
CFP − WTube of 85SNJ54HCT374WSNJ54HCT374W
LCCC − FKTube of 55SNJ54HCT374FKSNJ54HCT374FK

description/ordering information (continued)


OE does not affect the internal operations of the flip-flops. Old data can be retained or new data can be entered while the outputs are in the high-impedance state.


FUNCTION TABLE

(each flip-flop)

INPUTSOUTPUT Q

OE

CLKD
L­HH
L­LL

L

H

H or L

X

X

X

Q0 Z

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S-8200ABF-I6T1USNT-6ASEIKO4440
S-8211BAA-I6T1GSNT-6ASEIKO139990
S-8252AAA-I6T1USNT-6ASII2590
S-8252AAA-I6WW10SNT-6ASII2590
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