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Texas Instruments SN74HC377N — Analog & Data Acquisition
Texas Instruments

SN74HC377N D-Type Flip-Flop, 8-Bit, 64 MHz, 20-DIP

MPNSN74HC377N
End of Life

Texas Instruments SN74HC377N, 74HC series, D-Type flip-flop, 8-bit, standard function, non-inverted output, positive edge trigger, 64 MHz clock, 2V-6V supply, -40°C to 85°C, 20-DIP (0.300", 7.62mm), through hole, tube.

$0.81Ref. price · indicative, final on quote
SN74HC377N datasheet
Packaging20-DIP (0.300", 7.62mm)
StockContact for availability
MOQ1 pcs
  • 100% new & originalTraceable channels only — no refurbs, no pulls, no remarked parts.
  • Date & lot codes on quoteStated per line before you commit; label photos on request.
  • MSL-compliant ESD packingMoisture-sealed bags with indicator cards; reels photo-verified.
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Specifications

SN74HC377N Technical Specifications
ParameterValue
TypeD-Type
Series74HC
Output typeNon-Inverted
Trigger typePositive Edge
Mounting typeThrough Hole
Voltage2V ~ 6V
Current - quiescent8 µA
Current - output high, low5.2mA, 5.2mA
Frequency64 MHz
Operating temperature-40°C ~ 85°C (TA)
PackageTube
FunctionStandard
Case20-DIP (0.300\", 7.62mm)
Input capacitance3 pF
Number of elements1
Number of bits per element8
Max propagation delay @ v, max CL27ns @ 6V, 50pF

Product details

What this 8-bit D-type register does on your board

The Texas Instruments SN74HC377N is an 8-bit D-type flip-flop with a standard function and non-inverted outputs, triggered on the positive edge of the clock. It stores eight bits of data in parallel, making it a straightforward choice for buffering, temporary storage, or pipeline registers in 5V and 3.3V logic systems. The 20-pin DIP package (0.300" body) fits through-hole boards and breadboards, common in prototyping, industrial control panels, and legacy equipment repairs.

64 MHz clock and 27 ns propagation delay — timing fit

Rated for a clock frequency of 64 MHz, this flip-flop handles synchronous data transfers. The maximum propagation delay is 27 ns at 6 V with a 50 pF load.

Industrial temperature grade and package

Rated for -40°C to 85°C ambient, this part suits factory-floor controllers, outdoor telecom cabinets, and HVAC equipment where the board sees temperature swings. The 20-pin PDIP package (20-DIP, 0.300" wide) is through-hole, easy to hand-solder or socket, and remains a standard footprint for maintenance spares and retrofit boards.

Lifecycle and sourcing reality

TI lists the SN74HC377N as Active and ROHS3 compliant.

Frequently asked questions

What are suitable replacements or equivalents for SN74HC377N?

A close functional peer is the SN74LS378N from the 74LS family, which is also a positive-edge-triggered D-type flip-flop in a through-hole package, but it is a 6-bit device (not 8-bit) and operates at 40 MHz with a 4.75 V supply. For an 8-bit drop-in, stick with the 74HC377 family; the LS variant is not a direct pin-for-pin replacement due to bit count and supply differences.

Can SN74HC377N be used with 5V supply?

Yes, the SN74HC377N operates over a 2 V to 6 V supply range, so 5 V is well within specification. At 5 V the propagation delay will be slightly higher than the 27 ns figure quoted at 6 V, but still suitable for most 5 V logic systems.

What is the lead time for SN74HC377N from major distributors?

Lead time is confirmed at quote time against an RFQ. As an active TI part, it is generally available through independent distribution channels; submit an RFQ for current lead time and pricing.