74HC112D,652 Equivalent & Substitute Parts

Part Overview

The 74HC112D,652 is a dual JK-type flip-flop logic integrated circuit manufactured by Nexperia USA Inc., housed in a 16-SOIC package with 0.154" (3.90mm) width. This device implements two independent 1-bit JK flip-flops with complementary outputs, negative edge triggering, and Set/Reset functionality. The part is classified as Obsolete, making equivalent and substitute parts necessary for ongoing production and maintenance applications. Substitute parts must maintain functional equivalence across the 74HC logic family while meeting electrical and mechanical compatibility requirements.

Key Parameters

Parameter	Value
Manufacturer	Nexperia USA Inc.
Part Number	74HC112D,652
Logic Family	74HC
Function	Flip Flop 2 Element JK Type 1 Bit Negative Edge
Package Type	16-SOIC (0.154", 3.90mm Width)
Number of Elements	2
Output Type	Complementary
Trigger Type	Negative Edge
Clock Frequency	71 MHz
Max Propagation Delay	30ns @ 6V, 50pF
Supply Voltage Range	2V ~ 6V
Operating Temperature	-40°C ~ 125°C
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 74HC112D,652 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Logic family: 74HC series
Function: Dual JK-type flip-flop with Set/Reset capability
Output configuration: Complementary outputs
Trigger mechanism: Negative edge triggered
Package type: 16-SOIC form factor
Pin count and pinout: 16 pins
Supply voltage compatibility: 2V ~ 6V range
RoHS compliance: ROHS3 Compliant

Substitution Categories:

Upgrade Substitutes (Active or Last Time Buy status, enhanced specifications):

CD74HC112M96 (Texas Instruments, Active)
CD74HC112MT (Texas Instruments, Last Time Buy)

Similar Substitutes (Functionally equivalent, alternative manufacturers or packaging):

CD74HC112NSR (Texas Instruments, Active, 16-SOIC 0.209" width variant)
MC74HC112ADG (onsemi, Obsolete)
MC74HC112ADR2G (onsemi, Active)
SN74HC112D (Texas Instruments, Discontinued at DiGi Electronics)
SN74HC112DR (Texas Instruments, Active)
SN74HC112DT (Texas Instruments, Discontinued at DiGi Electronics)

All substitute parts share the base product number 74HC112 and maintain functional compatibility within the specified electrical parameters.

Parameter Comparison

Parameter	74HC112D,652 (Main)	CD74HC112M96	CD74HC112MT	CD74HC112NSR	MC74HC112ADG	MC74HC112ADR2G	SN74HC112D	SN74HC112DR	SN74HC112DT
Manufacturer	Nexperia USA Inc.	Texas Instruments	Texas Instruments	Texas Instruments	onsemi	onsemi	Texas Instruments	Texas Instruments	Texas Instruments
Product Status	Obsolete	Active	Last Time Buy	Active	Obsolete	Active	Discontinued at DiGi Electronics	Active	Discontinued at DiGi Electronics
Package Type	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.209", 5.30mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)	16-SOIC (0.154", 3.90mm)
Clock Frequency	71 MHz	60 MHz	60 MHz	60 MHz	35 MHz	35 MHz	60 MHz	60 MHz	60 MHz
Max Propagation Delay @ 6V, 50pF	30ns	30ns	30ns	30ns	21ns	21ns	21ns	21ns	21ns
Supply Voltage Range	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V	2V ~ 6V
Operating Temperature	-40°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-55°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Current - Output High, Low	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA	5.2mA, 5.2mA
Quiescent Current (Iq)	4 µA	4 µA	4 µA	4 µA	4 µA	4 µA	4 µA	4 µA	4 µA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Format	Tube	Tape & Reel (TR)	Tape & Reel (TR)	Tape & Reel (TR)	Tube	Tape & Reel (TR)	Tube	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)

Engineering Selection Recommendations

For New Designs and Active Production: Select CD74HC112M96 or CD74HC112MT from Texas Instruments. Both parts maintain Active or Last Time Buy status with ROHS3 compliance and extended operating temperature range (-55°C ~ 125°C), providing superior long-term availability and environmental specifications compared to the obsolete 74HC112D,652.

For Direct Mechanical Compatibility (0.154" Width Package): CD74HC112M96, CD74HC112MT, MC74HC112ADG, MC74HC112ADR2G, SN74HC112D, SN74HC112DR, and SN74HC112DT all use the 0.154" (3.90mm) width 16-SOIC package, ensuring identical PCB footprint compatibility with the original part.

For Alternative Package Geometry: CD74HC112NSR uses a 0.209" (5.30mm) width 16-SOIC package. This variant requires PCB layout verification before substitution, as the wider body may conflict with existing board designs.

For Extended Temperature Range Applications: CD74HC112M96, CD74HC112MT, CD74HC112NSR, MC74HC112ADG, and MC74HC112ADR2G support -55°C ~ 125°C operating range, exceeding the original part's -40°C ~ 125°C specification. SN74HC112D, SN74HC112DR, and SN74HC112DT are limited to -40°C ~ 85°C.

For Automated Assembly (Tape & Reel Packaging): CD74HC112M96, CD74HC112MT, CD74HC112NSR, MC74HC112ADR2G, and SN74HC112DT are supplied in Tape & Reel format, suitable for high-volume pick-and-place assembly operations.

Frequently Asked Questions (FAQ)

Q: Can I directly replace 74HC112D,652 with any 74HC112 variant? A: Direct replacement requires matching the 16-SOIC package form factor and pin configuration. All listed substitutes maintain identical pinout and functional behavior. However, verify package width (0.154" vs. 0.209") against your PCB layout before substitution.

Q: What is the difference between CD74HC112M96 and CD74HC112MT? A: Both are Texas Instruments 74HC112 devices in 16-SOIC (0.154" width) packages with identical electrical specifications. CD74HC112M96 is Active status, while CD74HC112MT is Last Time Buy status. CD74HC112M96 is recommended for new designs due to longer availability.

Q: Are onsemi MC74HC112ADG and MC74HC112ADR2G suitable replacements? A: Both onsemi parts are functionally equivalent with identical package geometry (16-SOIC 0.154" width). MC74HC112ADG is Obsolete; MC74HC112ADR2G is Active. MC74HC112ADR2G is preferred for new production. Note: Both have lower clock frequency (35 MHz vs. 71 MHz original) and faster propagation delay (21ns vs. 30ns), which may affect timing-critical applications.

Q: Why does CD74HC112NSR have a different package width? A: CD74HC112NSR uses a 0.209" (5.30mm) width 16-SOIC package instead of the standard 0.154" (3.90mm). This wider body variant requires PCB footprint verification. Use only if your design accommodates the larger package dimensions.

Q: Which substitute has the best long-term availability? A: CD74HC112M96 (Texas Instruments, Active status) and SN74HC112DR (Texas Instruments, Active status) offer the best long-term availability. Both are actively manufactured and widely stocked.

Q: Are all substitutes RoHS3 compliant? A: Yes. All listed substitute parts are ROHS3 Compliant, matching the environmental compliance of the original 74HC112D,652.

Q: What is the temperature range difference between substitutes? A: The original 74HC112D,652 operates -40°C ~ 125°C. Texas Instruments and onsemi variants (CD74HC112M96, CD74HC112MT, CD74HC112NSR, MC74HC112ADG, MC74HC112ADR2G) extend to -55°C ~ 125°C. SN74HC112 variants (SN74HC112D, SN74HC112DR, SN74HC112DT) are limited to -40°C ~ 85°C. Select based on your application's temperature requirements.

Q: Can I use SN74HC112DT in high-frequency applications? A: SN74HC112DT supports 60 MHz clock frequency with 21ns propagation delay, suitable for most standard logic applications. However, the original 74HC112D,652 specifies 71 MHz. For timing-critical designs, verify that 60 MHz operation meets your system requirements.

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