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Equivalent & Substitute Parts for 71024S20TYGI8
Part Overview
The 71024S20TYGI8 is a 1Mbit asynchronous SRAM manufactured by Renesas Electronics Corporation in a 32-SOJ surface mount package. This volatile memory device operates with a 20 ns access time and write cycle time, supporting parallel data interfaces across 128K x 8 memory organization. The part is active in production status and widely used in legacy and current embedded systems requiring parallel SRAM functionality. Substitute parts are identified when equivalent memory capacity, organization, interface type, and package specifications are maintained while offering alternative performance characteristics or manufacturer sources.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Memory Type | Volatile SRAM |
| Memory Size | 1Mbit |
| Memory Organization | 128K x 8 |
| Memory Interface | Parallel |
| Package / Case | 32-BSOJ (0.300", 7.62mm Width) |
| Mounting Type | Surface Mount |
| Voltage Supply Range | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C (TA) |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level | 3 (168 Hours) |
Substitute Part Grouping Explanation
Substitute parts for the 71024S20TYGI8 are qualified based on the following criteria:
- Memory capacity and organization remain constant at 1Mbit with 128K x 8 configuration
- Memory interface type is parallel, matching the original specification
- Package type is 32-BSOJ surface mount, ensuring mechanical and electrical compatibility
- Voltage supply range is 4.5V ~ 5.5V, maintaining power compatibility
- Operating temperature range is -40°C ~ 85°C, preserving thermal operating envelope
- RoHS3 compliance and MSL 3 rating are maintained across all substitutes
Access time and write cycle time may vary among substitutes, with faster performance options available. All identified substitutes are asynchronous SRAM technology with active production status.
Parameter Comparison
| Parameter | 71024S20TYGI8 | 71024S15TYGI8 | IS61C1024AL-12JLI |
|---|---|---|---|
| Manufacturer | Renesas Electronics | Renesas Electronics | ISSI |
| Memory Size | 1Mbit | 1Mbit | 1Mbit |
| Memory Organization | 128K x 8 | 128K x 8 | 128K x 8 |
| Memory Interface | Parallel | Parallel | Parallel |
| Access Time | 20 ns | 15 ns | 12 ns |
| Write Cycle Time | 20 ns | 15 ns | 12 ns |
| Package / Case | 32-BSOJ | 32-BSOJ | 32-BSOJ |
| Voltage Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 4.5V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| MSL Rating | 3 (168 Hours) | 3 (168 Hours) | 3 (168 Hours) |
| Product Status | Active | Active | Active |
Engineering Selection Recommendations
All three parts maintain active production status and full RoHS3 compliance with identical MSL ratings. The 71024S15TYGI8 offers improved performance with 15 ns access and write cycle times while remaining within the Renesas product family. The IS61C1024AL-12JLI provides the fastest performance at 12 ns access time and represents an alternative manufacturer source from ISSI with equivalent electrical and mechanical specifications. Selection between these substitutes depends on system timing requirements and preferred manufacturer sourcing strategy, as all parts satisfy the core functional and environmental parameters of the original specification.
Frequently Asked Questions (FAQ)
Q: Can the 71024S15TYGI8 directly replace the 71024S20TYGI8?
A: Yes. Both parts share identical memory capacity (1Mbit), organization (128K x 8), package (32-BSOJ), voltage range (4.5V ~ 5.5V), and operating temperature (-40°C ~ 85°C). The 71024S15TYGI8 offers faster access and write cycle times (15 ns versus 20 ns), making it a direct functional substitute with improved performance characteristics.
Q: Is the IS61C1024AL-12JLI compatible with the original 71024S20TYGI8 design?
A: Yes. The IS61C1024AL-12JLI maintains all critical electrical and mechanical parameters: 1Mbit capacity, 128K x 8 organization, parallel interface, 32-BSOJ package, 4.5V ~ 5.5V supply voltage, and -40°C ~ 85°C operating range. The 12 ns access time represents faster performance than the original specification.
Q: What is the primary difference between these substitute parts?
A: The primary difference is access time and write cycle time performance. The original 71024S20TYGI8 operates at 20 ns, the 71024S15TYGI8 at 15 ns, and the IS61C1024AL-12JLI at 12 ns. All other electrical, mechanical, and environmental specifications remain equivalent.
Q: Are there packaging differences between these parts?
A: All three parts use the 32-BSOJ (0.300", 7.62mm Width) surface mount package. The 71024S20TYGI8 and 71024S15TYGI8 are supplied in Tape & Reel packaging, while the IS61C1024AL-12JLI is supplied in Tray packaging. Both packaging formats are compatible with standard surface mount assembly processes.
Q: Do all substitute parts meet the same compliance standards?
A: Yes. All three parts are ROHS3 compliant with MSL 3 (168 Hours) moisture sensitivity ratings. REACH status is unaffected for all parts, and all share identical ECCN and HTSUS classifications.
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