Equivalent & Substitute Parts for 7142SA100CB

Part Overview

The 7142SA100CB is a 16Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation. This parallel memory IC operates at 100 ns access time with a 2K x 8 memory organization in a 48-DIP through-hole package. The part is classified as obsolete, making identification of compatible substitutes essential for system maintenance, repair, and legacy equipment support.

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
Supply Voltage	4.5V ~ 5.5V
Operating Temperature	-55°C ~ 125°C
Package Type	48-DIP (0.600", 15.24mm)
Mounting Type	Through Hole

Substitute Part Grouping Explanation

Substitution of the 7142SA100CB is determined by strict equivalence across electrical and mechanical parameters. The following criteria establish valid substitution:

Memory capacity and organization (16Kbit, 2K x 8 configuration)
Dual-port asynchronous SRAM technology
Parallel interface architecture
Access and write cycle timing (100 ns)
Supply voltage range (4.5V ~ 5.5V)
Operating temperature range (-55°C ~ 125°C)
Physical package specification (48-DIP, 0.600" width, 15.24mm)
Through-hole mounting compatibility

The 7132LA100CB meets all these criteria and is classified as a manufacturer-recommended substitute.

Parameter Comparison

Parameter	7142SA100CB (Main Part)	7132LA100CB (Substitute)
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Type	Volatile SRAM	Volatile SRAM
Memory Format	Dual Port, Asynchronous	Dual Port, Asynchronous
Memory Size	16Kbit	16Kbit
Memory Organization	2K x 8	2K x 8
Memory Interface	Parallel	Parallel
Access Time	100 ns	100 ns
Write Cycle Time	100 ns	100 ns
Supply Voltage	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-55°C ~ 125°C	-55°C ~ 125°C
Package Type	48-DIP (0.600", 15.24mm)	48-DIP (0.600", 15.24mm)
Mounting Type	Through Hole	Through Hole
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	RoHS non-compliant
REACH Status	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

The 7132LA100CB is the designated manufacturer substitute for the obsolete 7142SA100CB. Both parts share identical electrical specifications, memory architecture, and physical packaging. The primary distinction is product status: the 7142SA100CB is obsolete while the 7132LA100CB maintains active production status, ensuring continued availability and supply chain reliability.

Both parts carry identical RoHS non-compliant and REACH Unaffected designations. Selection between these parts should be based on availability and application requirements. The 7132LA100CB is preferred for new designs and ongoing production due to its active status.

Frequently Asked Questions (FAQ)

Q: Can the 7132LA100CB directly replace the 7142SA100CB in existing circuits?

A: Yes. Both parts are electrically and mechanically equivalent across all specified parameters, including memory capacity, access timing, voltage requirements, temperature range, and 48-DIP package dimensions.

Q: What is the difference between these two part numbers?

A: The primary difference is product lifecycle status. The 7142SA100CB is obsolete, while the 7132LA100CB is in active production. Electrical and mechanical specifications are identical.

Q: Are there packaging differences between these parts?

A: The main part is supplied without specified packaging, while the substitute is supplied in tube packaging. Both use the same 48-DIP (0.600", 15.24mm) physical package suitable for through-hole mounting.

Q: Do both parts meet the same compliance standards?

A: Both parts share identical RoHS non-compliant and REACH Unaffected status. Compliance requirements should be evaluated based on your application and regional regulations.

Q: Is the 7132LA100CB suitable for legacy equipment repair?

A: Yes. The 7132LA100CB is fully compatible with equipment designed for the 7142SA100CB, provided the circuit board accommodates standard 48-DIP through-hole mounting.

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