Equivalent & Substitute Parts for Renesas Electronics 7132SA100CB

Part Overview

The Renesas Electronics 7132SA100CB is a 16Kbit dual-port asynchronous SRAM with parallel interface, organized as 2K x 8, featuring 100 ns access time and 48-DIP through-hole packaging. This part is classified as obsolete, making equivalent substitutes necessary for ongoing system support and new designs. The original part operates across an extended temperature range of -55°C to 125°C with supply voltage tolerance of 4.5V to 5.5V.

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	-55°C ~ 125°C
Package Type	48-DIP (0.600", 15.24mm)
Mounting Type	Through Hole
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution for the 7132SA100CB is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

Memory capacity: 16Kbit (2K x 8 organization)
Memory technology: Dual-port asynchronous SRAM
Interface type: Parallel
Access time: 100 ns or faster
Supply voltage: 4.5V ~ 5.5V compatibility
Operating temperature range: Must support -55°C ~ 125°C minimum
Package compatibility: Through-hole mounting with equivalent pinout

Substitute Parts Identified:

7132LA100CB — Direct functional equivalent with identical electrical specifications and package type. Active product status. Maintains 100 ns access time, extended temperature range (-55°C ~ 125°C), and 48-DIP through-hole packaging. Primary substitute for direct replacement.
7132LA20JG — Faster access time variant (20 ns) in surface-mount 52-PLCC package. Meets memory capacity and voltage requirements but operates within commercial temperature range (0°C ~ 70°C). Suitable only where temperature range reduction is acceptable and surface-mount assembly is feasible.

Parameter Comparison

Parameter	7132SA100CB (Main)	7132LA100CB (Substitute)	7132LA20JG (Substitute)
Memory Size	16Kbit	16Kbit	16Kbit
Memory Organization	2K x 8	2K x 8	2K x 8
Memory Format	Dual Port, Asynchronous	Dual Port, Asynchronous	Dual Port, Asynchronous
Access Time	100 ns	100 ns	20 ns
Write Cycle Time	100 ns	100 ns	20 ns
Voltage Supply	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C	0°C ~ 70°C
Package Type	48-DIP (0.600")	48-DIP (0.600")	52-PLCC (19.13x19.13)
Mounting Type	Through Hole	Through Hole	Surface Mount
Product Status	Obsolete	Active	Active
RoHS Status	Non-compliant	Non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Path): Select 7132LA100CB. This part maintains identical electrical performance (100 ns access time, -55°C ~ 125°C operating range), package form factor (48-DIP through-hole), and pinout compatibility with the obsolete 7132SA100CB. Active product status ensures long-term availability. Both parts share RoHS non-compliant status, making this substitution suitable for legacy system maintenance without redesign.

For New Designs with Compliance Requirements: The 7132LA20JG offers ROHS3 compliance and faster performance (20 ns access time) but requires design modifications: surface-mount assembly process change and thermal management verification for the reduced operating temperature range (0°C ~ 70°C). This option is applicable only when system operating conditions remain within commercial temperature limits and PCB layout supports PLCC packaging.

For Extended Temperature Applications: Maintain 7132LA100CB selection if system operation requires the full -55°C ~ 125°C range. The 7132LA20JG is not suitable for military or industrial temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can 7132LA20JG directly replace 7132SA100CB in existing PCBs? A: No. The 7132LA20JG uses 52-PLCC surface-mount packaging versus the 48-DIP through-hole package of the original part. PCB redesign and assembly process modification are required.

Q: What is the primary substitute for direct board-level replacement? A: 7132LA100CB. It provides identical electrical specifications, package type, and pinout, requiring no design changes.

Q: Are there temperature range limitations with substitute parts? A: The 7132LA100CB maintains the full -55°C ~ 125°C range. The 7132LA20JG operates only within 0°C ~ 70°C. Verify system thermal requirements before selection.

Q: Do substitute parts maintain voltage supply compatibility? A: Yes. Both 7132LA100CB and 7132LA20JG operate within the 4.5V ~ 5.5V supply range, matching the original part.

Q: What is the memory capacity equivalence across all parts? A: All three parts (7132SA100CB, 7132LA100CB, 7132LA20JG) provide 16Kbit capacity organized as 2K x 8 with dual-port asynchronous parallel interface.

Q: Does RoHS compliance affect substitution decisions? A: The 7132LA100CB maintains non-compliant status matching the original part. The 7132LA20JG is ROHS3 compliant, suitable only for new designs with compliance mandates and compatible thermal specifications.

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