TEXAS INSTRUMENTS CD54HC377, CD74HC377, CD54HCT377, CD74HCT377 Data Sheet
Summary
Texas Instruments CD74HC377/CD74HCT377 high-speed CMOS octal D-type flip-flop with data enable, buffered common clock, 14ns propagation delay at 5V, and high noise immunity. Available in CERDIP, PDIP, SOIC, TSSOP packages from -55 to 125 degrees Celsius. For digital logic designers implementing data latching and bus buffering in microprocessor and industrial systems.
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CD54HC377, CD74HC377, CD54HCT377, CD74HCT377
Data sheet acquired from Harris Semiconductor SCHS184C
High-Speed CMOS Logic
September 1997 - Revised February 2004 Octal D-Type Flip-Flop With Data Enable
Features Description Buffered Common Clock The ’HC377 and ’HCT377 are octal D-type flip-flops with
buffered clock (CP) common to all eight flip-flops. All the flip-
[ /Title Buffered Inputs
flops are loaded simultaneously on the positive edge of the (CD74 Typical Propagation Delay at CL = 15p F, clock (CP) when the Data Enable (E) is Low.
HC377 VCC = 5V, TA = 25o C
Ordering Information
14 ns (HC Types CD74 16 ns (HCT Types)
TEMP. RANGE
HCT37 PART NUMBER (o C) PACKAGE
Fanout (Over Temperature Range)
CD54HC377F3A -55 to 125 20 Ld CERDIP
Standard Outputs . . . . . . . . . . . . . . . 10 LSTTL Loads
/Sub-
Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads CD54HCT377F3A -55 to 125 20 Ld CERDIP
Wide Operating Temperature Range . . . -55o C to 125o C
CD74HC377E -55 to 125 20 Ld PDIP
(High
Speed Balanced Propagation Delay and Transition Times
CD74HC377M -55 to 125 20 Ld SOIC
CMOS Significant Power Reduction Compared to LSTTL
CD74HC377M96 -55 to 125 20 Ld SOIC
Logic ICs
Logic
CD74HC377PW -55 to 125 20 Ld TSSOP
Octal HC Types
D- 2V to 6V Operation CD74HC377PWR -55 to 125 20 Ld TSSOP
Type High Noise Immunity: NIL 30%, NIH 30%of VCC at
CD74HCT377E -55 to 125 20 Ld PDIP
VCC = 5V
Flip-
CD74HCT377M -55 to 125 20 Ld SOIC
HCT Types
4.5V to 5.5V Operation CD74HCT377M96 -55 to 125 20 Ld SOIC
Direct LSTTL Input Logic Compatibility,
NOTE: When ordering, use the entire part number. The suffixes
VIL= 0.8V (Max), VIH = 2V (Min)
and R denote tape and reel.
CMOS Input Compatibility, Il 1µA at VOL, VOH
Pinout
CD54HC377, CD54HCT377
(CERDIP) CD74HC377 (PDIP, SOIC, TSSOP) CD74HCT377 (PDIP, SOIC) TOP VIEW
1E VCC Q0 Q7 D0 D7 D1 D6 Q1 Q6 Q2 Q5
Q3 Q4 GND CP
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures. Copyright © 2004, Texas Instruments Incorporated
Page Summary Contents For TEXAS INSTRUMENTS CD54HC377, CD74HC377, CD54HCT377, CD74HCT377 Data Sheet
Manual Details
| Brand | Texas Instruments |
|---|---|
| Pages | 13 |
| File Size | 303.62 KB |
| Published | June 17, 2026 |
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Frequently Asked Questions
What supply voltage does the HC377 operate at?
HC types operate at 2V to 6V. HCT types operate at 4.5V to 5.5V.
When does the flip-flop load data?
Data loads on positive clock edge when Data Enable is Low.
What packages are available for CD74HC377?
PDIP, SOIC, and TSSOP, all 20-lead packages.
What is the max operating temperature?
The wide operating temperature range is -55°C to 125°C.