Equivalent & Substitute Parts for 7134SA70CB

Part Overview

The 7134SA70CB is a 32Kbit dual-port asynchronous SRAM manufactured by Renesas Electronics Corporation. This parallel interface memory IC operates at 70 ns access time with a 4K x 8 memory organization, designed for through-hole mounting in 48-DIP packages. The part is classified as obsolete, making identification of compatible substitutes essential for system maintenance, repair, and legacy equipment support.

Substiute Parts

7134SA70CB

Renesas Electronics CorporationIn Stock: 12247134SA70CB Datasheet

Current PartRFQ

7134LA35CB

Renesas Electronics CorporationIn Stock: 10347134LA35CB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 7134SA70CB is determined by strict equivalence across the following critical parameters:

• Memory capacity and organization (32Kbit, 4K x 8)
• Dual-port asynchronous SRAM architecture
• Parallel interface configuration
• Supply voltage range (4.5V ~ 5.5V)
• Operating temperature range (-55°C ~ 125°C)
• Physical package (48-DIP, 0.600" width)
• Through-hole mounting compatibility

The 7134LA35CB qualifies as a direct substitute because it maintains identical specifications across all mechanical and electrical parameters listed above. The primary difference is improved access time performance (35 ns versus 70 ns), which represents a performance enhancement rather than a compatibility limitation.

Parameter Comparison

Engineering Selection Recommendations

The 7134LA35CB is a valid substitute for the 7134SA70CB based on complete electrical and mechanical compatibility. Both parts share identical memory capacity, organization, interface type, voltage specifications, and temperature operating range. The 48-DIP package dimensions and through-hole mounting characteristics are equivalent, enabling direct board-level replacement without layout modifications.

The 7134LA35CB carries active product status from Renesas Electronics Corporation, whereas the 7134SA70CB is obsolete. This status difference makes the 7134LA35CB the preferred selection for new designs and system repairs requiring long-term component availability.

Both parts maintain identical RoHS non-compliance and REACH unaffected classifications. Compliance requirements should be evaluated at the system level rather than the component level.

Frequently Asked Questions (FAQ)

Q: Can the 7134LA35CB replace the 7134SA70CB in existing circuit designs?

A: Yes. The 7134LA35CB is electrically and mechanically equivalent to the 7134SA70CB. Both parts operate at identical supply voltages (4.5V ~ 5.5V), temperature ranges (-55°C ~ 125°C), and use the same 48-DIP package footprint. Direct substitution is possible without circuit modifications.

Q: What is the primary difference between these two parts?

A: The access time and write cycle time differ. The 7134SA70CB operates at 70 ns, while the 7134LA35CB operates at 35 ns. This represents a performance improvement in the substitute part. Faster access times do not create compatibility issues in systems designed for the slower part.

Q: Why is the 7134SA70CB classified as obsolete?

A: The 7134SA70CB is no longer in active production by Renesas Electronics Corporation. The 7134LA35CB represents the current active equivalent in the product line, offering improved performance specifications while maintaining full compatibility.

Q: Are there any packaging differences between these parts?

A: No. Both parts use the 48-DIP (0.600", 15.24mm) package with through-hole mounting. Board layouts and socket designs are fully compatible.

Q: Do compliance certifications differ between the two parts?

A: Both parts share identical RoHS non-compliance and REACH unaffected status. System-level compliance requirements should be evaluated independently of component-level classifications.