74HC08DB,112 AND Gate IC Equivalent & Substitute Parts

Part Overview

The 74HC08DB,112 is a 4-channel 2-input AND gate logic IC manufactured by Nexperia USA Inc. in 14-SSOP surface mount packaging. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The 74HC08 series represents a standard logic gate function across multiple manufacturers, with several active alternatives available in compatible or improved package configurations.

Key Parameters

Parameter	Value
Logic Type	AND Gate
Number of Circuits	4
Number of Inputs	2
Voltage Supply Range	2V to 6V
Current - Quiescent (Max)	2 µA
Current - Output High/Low	5.2mA / 5.2mA
Input Logic Level - Low	0.5V to 1.8V
Input Logic Level - High	1.5V to 4.2V
Max Propagation Delay @ 6V, 50pF	15ns to 20ns
Operating Temperature Range	-40°C to 125°C
Mounting Type	Surface Mount
Package Type	14-SSOP or 14-TSSOP
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the 74HC08DB,112 is determined by the following criteria:

Functional Equivalence: All substitute parts maintain identical logic function (4-channel 2-input AND gate), circuit count, and input configuration.

Electrical Compatibility: Supply voltage range (2V to 6V), quiescent current (2 µA max), output current (5.2mA), and input logic thresholds remain consistent across all substitutes.

Propagation Delay: The original part specifies 15ns maximum delay at 6V with 50pF load. Substitutes range from 15ns to 20ns, all within acceptable logic timing parameters for standard applications.

Operating Temperature: The original part supports -40°C to 125°C. Some substitutes limit to -40°C to 85°C, which is acceptable for most commercial and industrial applications.

Package Compatibility: The original 14-SSOP package (0.209", 5.30mm width) can be substituted with 14-TSSOP (0.173", 4.40mm width) variants, which are pin-compatible but with different physical dimensions. Direct 14-SSOP alternatives are also available.

Compliance & Status: All substitutes maintain ROHS3 compliance, MSL Level 1, and REACH unaffected status. Active product status is preferred over discontinued variants for long-term availability.

Parameter Comparison

Part Number	Manufacturer	Package	Status	Voltage Supply	Prop. Delay (ns)	Temp. Range (°C)	Inventory
74HC08DB,112	Nexperia USA Inc.	14-SSOP	Obsolete	2V to 6V	15	-40 to 125	830
74HC08PW,118	Nexperia USA Inc.	14-TSSOP	Active	2V to 6V	15	-40 to 125	42412
CD74HC08PWR	Texas Instruments	14-TSSOP	Active	2V to 6V	15	-55 to 125	4193
MM74HC08MTCX	onsemi	14-TSSOP	Active	2V to 6V	20	-40 to 85	3900
SN74HC08DBR	Texas Instruments	14-SSOP	Active	2V to 6V	17	-40 to 85	2316
SN74HC08IPWRQ1	Texas Instruments	14-TSSOP	Active	2V to 6V	17	-40 to 85	5833
SN74HC08PWR	Texas Instruments	14-TSSOP	Active	2.1V to 6V	17	-40 to 85	10400
CD74HC08PW	Texas Instruments	14-TSSOP	Discontinued	2V to 6V	15	-55 to 125	957
SN74HC08PW	Texas Instruments	14-TSSOP	Discontinued	2V to 6V	17	-40 to 85	3420
SN74HC08PWT	Texas Instruments	14-TSSOP	Discontinued	2V to 6V	17	-40 to 85	941
SN74HC08IPWRG4Q1	Texas Instruments	14-TSSOP	Active	2V to 6V	17	-40 to 85	1388

Engineering Selection Recommendations

Primary Substitutes (Active Status, Highest Availability)

For direct replacement with improved availability, select from active parts with established supply chains. SN74HC08PWR (Texas Instruments, 10400 units in stock) offers the highest inventory level with active product status and 14-TSSOP packaging. 74HC08PW,118 (Nexperia USA Inc., 42412 units) provides the same manufacturer lineage as the original part with active status and identical electrical specifications.

Package Consideration

If PCB layout requires the original 14-SSOP form factor, SN74HC08DBR (Texas Instruments) is the only active substitute maintaining this package type. For applications where 14-TSSOP packaging is acceptable, multiple active alternatives exist with superior inventory availability.

Temperature Range Requirement

The original part supports -40°C to 125°C operation. CD74HC08PWR extends this to -55°C to 125°C, suitable for extended temperature applications. Most other active substitutes limit to -40°C to 85°C, which covers standard commercial and industrial temperature ranges.

Automotive Grade Applications

SN74HC08IPWRQ1 and SN74HC08IPWRG4Q1 carry AEC-Q100 automotive qualification, appropriate for automotive and harsh environment applications requiring formal qualification documentation.

Discontinued Parts

CD74HC08PW, SN74HC08PW, and SN74HC08PWT are discontinued at DiGi Electronics and should not be selected for new designs despite remaining inventory. These parts present long-term supply risk.

Frequently Asked Questions (FAQ)

Q: Can I substitute 14-TSSOP packages for the original 14-SSOP package?

A: Yes, 14-TSSOP and 14-SSOP are pin-compatible packages with identical pinouts. The primary difference is physical dimensions: 14-TSSOP measures 0.173" width (4.40mm) versus 14-SSOP at 0.209" width (5.30mm). PCB footprints must accommodate the specific package selected. Both maintain the same electrical performance and mounting type (surface mount).

Q: What is the difference between propagation delay specifications of 15ns, 17ns, and 20ns?

A: Propagation delay represents the time required for a logic state change at the input to appear at the output. The original part specifies 15ns maximum at 6V supply with 50pF load. Substitutes with 17ns or 20ns delays remain within acceptable timing margins for standard logic applications. Selection depends on specific timing requirements of the circuit; faster delays (15ns) are preferred for time-critical applications, while 20ns delays are acceptable for general-purpose logic functions.

Q: Are all substitutes RoHS3 compliant?

A: Yes, all listed substitute parts maintain ROHS3 compliance and MSL Level 1 (unlimited moisture sensitivity), matching the original part's environmental and regulatory status.

Q: Which substitute offers the best long-term availability?

A: 74HC08PW,118 (Nexperia USA Inc.) with 42412 units in stock and active product status represents the highest inventory availability. SN74HC08PWR (Texas Instruments) with 10400 units also provides strong availability with active status. Both are suitable for new designs requiring long-term supply assurance.

Q: Can I use automotive-grade substitutes in non-automotive applications?

A: Yes, automotive-grade parts (SN74HC08IPWRQ1, SN74HC08IPWRG4Q1) with AEC-Q100 qualification exceed standard commercial requirements and are fully compatible with non-automotive applications. These parts offer additional reliability margin at no functional penalty.

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