Renesas Electronics 7142LA100P SRAM Equivalent & Substitute Parts

Part Overview

The Renesas Electronics 7142LA100P is a 16Kbit dual-port asynchronous SRAM memory IC in 48-DIP packaging with 100 ns access time and parallel interface. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing system support. The part operates within a 4.5V to 5.5V supply voltage range and is rated for 0°C to 70°C operating temperature.

Key Parameters

Parameter	Value
Memory Type	Volatile SRAM
Memory Format	Dual Port, Asynchronous
Memory Size	16Kbit
Memory Organization	2K x 8
Memory Interface	Parallel
Access Time	100 ns
Write Cycle Time	100 ns
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package Type	48-DIP (0.600", 15.24mm)
Mounting Type	Through Hole
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 7142LA100P is based on strict electrical and mechanical compatibility criteria:

Core Substitution Parameters:

Memory capacity: 16Kbit (2K x 8 organization)
Memory technology: Dual-port asynchronous SRAM
Access time: 100 ns maximum
Write cycle time: 100 ns maximum
Supply voltage: 4.5V ~ 5.5V compatibility
Package: 48-DIP form factor with 0.600" (15.24mm) body width
Interface: Parallel memory interface

The Renesas Electronics 7132LA100CB qualifies as a direct substitute based on matching all core electrical parameters and maintaining the same 48-DIP package footprint. The substitute part is classified as active product status, ensuring continued availability and manufacturing support.

Parameter Comparison

Parameter	7142LA100P (Main Part)	7132LA100CB (Substitute)	Compatibility
Memory Size	16Kbit	16Kbit	Match
Memory Organization	2K x 8	2K x 8	Match
Memory Technology	SRAM - Dual Port, Asynchronous	SRAM - Dual Port, Asynchronous	Match
Access Time	100 ns	100 ns	Match
Write Cycle Time	100 ns	100 ns	Match
Voltage Supply Range	4.5V ~ 5.5V	4.5V ~ 5.5V	Match
Package / Case	48-DIP (0.600", 15.24mm)	48-DIP (0.600", 15.24mm)	Match
Mounting Type	Through Hole	Through Hole	Match
Memory Interface	Parallel	Parallel	Match
Operating Temperature Range	0°C ~ 70°C	-55°C ~ 125°C	Substitute exceeds specification
Product Status	Obsolete	Active	Substitute actively manufactured
RoHS Status	RoHS non-compliant	RoHS non-compliant	Match

Engineering Selection Recommendations

The 7132LA100CB is the qualified substitute for the obsolete 7142LA100P based on the following engineering criteria:

Electrical Compatibility: All critical memory parameters are identical, including 16Kbit capacity, 100 ns access and write cycle times, and 4.5V to 5.5V supply voltage range. The parallel interface and 2K x 8 memory organization are preserved.

Package Compatibility: Both parts use 48-DIP packaging with identical 0.600" (15.24mm) body width, enabling direct PCB footprint compatibility for through-hole mounting applications.

Product Status: The 7132LA100CB is classified as active product, ensuring manufacturing continuity and supply chain availability. The main part 7142LA100P is obsolete, necessitating transition to the substitute.

Temperature Performance: The substitute part operates across -55°C to 125°C, exceeding the original part's 0°C to 70°C range. This provides enhanced thermal margin for applications within the original specification.

Compliance: Both parts maintain identical RoHS non-compliance status and REACH unaffected classification, preserving regulatory alignment in legacy system designs.

Frequently Asked Questions (FAQ)

Q: Can the 7132LA100CB directly replace the 7142LA100P in existing designs?

A: Yes. The substitute part matches all core electrical parameters (16Kbit capacity, 100 ns timing, 4.5V–5.5V supply) and uses identical 48-DIP packaging. Direct PCB substitution is supported without circuit modification.

Q: What is the primary reason for substitution?

A: The 7142LA100P is classified as obsolete. The 7132LA100CB is an active product from the same manufacturer, ensuring continued availability and manufacturing support.

Q: Are there packaging differences between these parts?

A: Both parts use 48-DIP packaging with 0.600" (15.24mm) body width. The supplier device packages differ (48-PDIP versus 48-SIDE BRAZED), but the physical footprint and pin configuration remain compatible for PCB mounting.

Q: Does the substitute part have different temperature specifications?

A: The substitute operates across -55°C to 125°C, compared to the original 0°C to 70°C range. This extended temperature capability provides additional thermal margin while maintaining compatibility with the original specification window.

Q: Are there compliance or certification differences?

A: Both parts are RoHS non-compliant and REACH unaffected. Regulatory classification remains consistent between the main part and substitute.

Q: What memory interface does the substitute support?

A: The 7132LA100CB maintains the parallel memory interface of the original part, supporting identical signal timing and data bus architecture.

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