Equivalent & Substitute Parts for 71024S20TYG

Part Overview

The 71024S20TYG is a 1Mbit asynchronous SRAM manufactured by Renesas Electronics Corporation in a 32-SOJ surface mount package. This volatile memory IC operates with a 20 ns access time and write cycle time, supporting parallel memory interface with 128K x 8 organization. The part is Active status and ROHS3 compliant, making it suitable for legacy and current industrial applications requiring asynchronous SRAM functionality. Equivalent and substitute parts are identified based on matching core electrical and mechanical specifications while accommodating variations in access time performance and operating temperature ranges.

Substiute Parts

71024S20TYG

Renesas Electronics CorporationIn Stock: 73371024S20TYG Datasheet

Current PartRFQ

71024S12TYG

Renesas Electronics CorporationIn Stock: 204371024S12TYG Datasheet

MFR RecommendedRFQ

71024S15TYG

Renesas Electronics CorporationIn Stock: 361971024S15TYG Datasheet

MFR RecommendedRFQ

71024S15TYGI

Renesas Electronics CorporationIn Stock: 221871024S15TYGI Datasheet

MFR RecommendedRFQ

IS61C1024AL-12JLI

ISSI, Integrated Silicon Solution IncIn Stock: 8146IS61C1024AL-12JLI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the 71024S20TYG are qualified based on the following criteria:

Core Compatibility Requirements:

• Memory Size: 1Mbit
• Memory Organization: 128K x 8
• Memory Interface: Parallel
• Package / Case: 32-BSOJ (0.300", 7.62mm Width)
• Voltage Supply: 4.5V ~ 5.5V
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• MSL Rating: 3 (168 Hours)

Performance Variation Allowance:

• Access Time: Equal to or faster than 20 ns
• Write Cycle Time: Equal to or faster than 20 ns
• Operating Temperature: May extend beyond 0°C ~ 70°C range

Manufacturer Flexibility:

• Renesas Electronics Corporation (same manufacturer, different speed grades)
• ISSI, Integrated Silicon Solution Inc (alternative qualified manufacturer)

Substitutes are grouped by access time performance: 12 ns variants (faster), 15 ns variants (faster), and cross-manufacturer alternatives meeting identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

All substitute parts listed maintain Active product status and ROHS3 compliance, ensuring continued availability and regulatory alignment with the original 71024S20TYG specification.

Direct Substitutes (Same Temperature Range): The 71024S15TYG and 71024S12TYG are Renesas Electronics parts operating within the identical 0°C ~ 70°C temperature range as the main part. Both offer faster access and write cycle times, providing performance headroom for timing-critical applications without thermal derating concerns.

Extended Temperature Substitutes: The 71024S15TYGI and IS61C1024AL-12JLI extend operating temperature to -40°C ~ 85°C, supporting applications requiring wider thermal operating windows. The 71024S15TYGI maintains Renesas manufacturer continuity, while IS61C1024AL-12JLI provides cross-manufacturer qualification from ISSI with identical electrical and mechanical parameters.

Performance Tier Selection: 12 ns variants (71024S12TYG, IS61C1024AL-12JLI) deliver maximum performance margin. 15 ns variants (71024S15TYG, 71024S15TYGI) provide balanced performance and cost. All variants are electrically and mechanically interchangeable within the specified 4.5V ~ 5.5V supply and 32-BSOJ package constraints.

Frequently Asked Questions (FAQ)

Q: Can 71024S15TYG replace 71024S20TYG in existing designs? A: Yes. The 71024S15TYG is electrically and mechanically identical except for faster access time (15 ns vs 20 ns) and maintains the same 0°C ~ 70°C operating temperature range, 32-BSOJ package, and 4.5V ~ 5.5V supply voltage.

Q: What is the difference between 71024S15TYG and 71024S15TYGI? A: Both parts have identical 15 ns access time and 128K x 8 organization. The 71024S15TYGI extends operating temperature to -40°C ~ 85°C compared to 0°C ~ 70°C for the standard 71024S15TYG. Select 71024S15TYGI for applications requiring wider thermal range.

Q: Is IS61C1024AL-12JLI compatible with 71024S20TYG? A: Yes. The IS61C1024AL-12JLI matches all core electrical specifications (1Mbit, 128K x 8, parallel interface, 4.5V ~ 5.5V, 32-BSOJ package) and offers 12 ns performance with extended -40°C ~ 85°C temperature range. Cross-manufacturer substitution is valid for applications accepting ISSI as an alternative qualified source.

Q: Does faster access time affect PCB layout or signal integrity? A: Faster access time variants (12 ns, 15 ns) do not require PCB layout changes. All substitute parts maintain identical 32-BSOJ package dimensions and pinout. Signal integrity remains consistent across the voltage and temperature specifications provided.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All listed substitute parts carry ROHS3 compliance and MSL 3 (168 Hours) rating, matching the original 71024S20TYG environmental and regulatory status.

Q: Which substitute offers the best inventory availability? A: IS61C1024AL-12JLI shows 8097 pcs in stock, 71024S15TYG shows 3522 pcs, 71024S12TYG shows 2000 pcs, and 71024S15TYGI shows 2200 pcs. Verify current inventory with your supplier for production requirements.