Equivalent & Substitute Parts for Renesas 6116SA90DB

Part Overview

The Renesas 6116SA90DB is a 16Kbit asynchronous SRAM with parallel interface, packaged in 24-CDIP through-hole configuration. This device operates at 90 ns access time with supply voltage range of 4.5V to 5.5V and temperature range of -55°C to 125°C. The part is classified as obsolete, making substitute components necessary for new designs and ongoing production requirements.

Substiute Parts

6116SA90DB

Renesas Electronics CorporationIn Stock: 8036116SA90DB Datasheet

Current PartRFQ

6116LA20SOG

Renesas Electronics CorporationIn Stock: 10626116LA20SOG Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the 6116SA90DB is determined by the following critical parameters:

• Memory capacity (16Kbit) and organization (2K x 8) must remain identical
• Memory interface type (Parallel) must be maintained
• Supply voltage range (4.5V ~ 5.5V) must be compatible
• Access time and write cycle time must be equal to or faster than 90 ns
• Package type determines physical and electrical compatibility

The 6116LA20SOG qualifies as a substitute based on matching memory capacity, organization, interface type, and supply voltage. This part provides improved performance with 20 ns access time, exceeding the speed requirement of the original 90 ns specification.

Parameter Comparison

Engineering Selection Recommendations

The 6116LA20SOG is an active, ROHS3-compliant substitute for the obsolete 6116SA90DB. Both devices share identical memory capacity, organization, and parallel interface specifications with compatible supply voltage requirements.

The 6116LA20SOG provides superior performance with 20 ns access time compared to the original 90 ns specification. The operating temperature range of the substitute is narrower (0°C ~ 70°C versus -55°C ~ 125°C), which must be evaluated against application requirements.

Package transition from 24-CDIP through-hole to 24-SOIC surface-mount requires PCB redesign. The ROHS3 compliance status of the substitute aligns with current environmental and regulatory standards, whereas the original part does not meet these requirements.

Frequently Asked Questions (FAQ)

Q: Can the 6116LA20SOG directly replace the 6116SA90DB without circuit modification?

A: Electrical compatibility is confirmed for memory capacity, organization, interface type, and supply voltage. However, package transition from 24-CDIP to 24-SOIC requires PCB layout changes. Operating temperature range differences must be evaluated for specific applications.

Q: What is the significance of the faster 20 ns access time in the substitute?

A: The 6116LA20SOG operates at 20 ns access time, which is faster than the original 90 ns specification. This provides performance headroom and is backward-compatible with designs requiring 90 ns or slower operation.

Q: Does the ROHS3 compliance of the substitute affect compatibility?

A: ROHS3 compliance indicates the substitute meets current environmental standards. The original part is non-compliant. This difference does not affect electrical or functional compatibility but may be relevant for regulatory and procurement requirements.

Q: Are there temperature range limitations when substituting?

A: The substitute operates from 0°C to 70°C, compared to the original -55°C to 125°C range. Applications requiring extended temperature operation below 0°C or above 70°C must verify alternative solutions.

Q: What inventory status should be considered for procurement?

A: The 6116SA90DB is obsolete with 742 pieces in stock. The 6116LA20SOG is active with 987 pieces available, providing better long-term availability for production and design transitions.