IDT71024S15TY Equivalent & Substitute Parts

Part Overview

The IDT71024S15TY is a 1Mbit asynchronous SRAM memory IC manufactured by Renesas Electronics Corporation in a 32-SOJ package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new designs. The device provides parallel memory interface with 15 ns access time and operates across the 4.5V to 5.5V supply voltage range. Substitute parts must maintain electrical compatibility while meeting current manufacturing and compliance standards.

Key Parameters

Parameter	Value
Memory Type	Volatile SRAM
Memory Size	1Mbit
Memory Organization	128K x 8
Memory Interface	Parallel
Access Time	15 ns
Write Cycle Time	15 ns
Voltage Supply Range	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C
Package Type	32-BSOJ (0.300", 7.62mm Width)
Mounting Type	Surface Mount
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following critical parameters:

Memory capacity (1Mbit), organization (128K x 8), interface type (parallel), package form factor (32-BSOJ), and supply voltage compatibility (4.5V ~ 5.5V). Access time and write cycle time are performance specifications; substitute parts meeting or exceeding the original specification are electrically compatible. Operating temperature range may differ between substitutes and the original part. RoHS and REACH compliance status are manufacturing and regulatory attributes that determine suitability for new designs and long-term availability.

Parameter Comparison

Parameter	IDT71024S15TY	71024S15TYG	IS61C1024AL-12JLI	IS61C1024AL-12JLI-TR
Manufacturer	Renesas Electronics	Renesas Electronics	ISSI	ISSI
Memory Size	1Mbit	1Mbit	1Mbit	1Mbit
Organization	128K x 8	128K x 8	128K x 8	128K x 8
Access Time	15 ns	15 ns	12 ns	12 ns
Write Cycle Time	15 ns	15 ns	12 ns	12 ns
Supply Voltage	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	0°C ~ 70°C	0°C ~ 70°C	-40°C ~ 85°C	-40°C ~ 85°C
Package	32-BSOJ	32-BSOJ	32-BSOJ	32-BSOJ
Product Status	Obsolete	Active	Active	Active
RoHS Status	Non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Packaging Option	Not specified	Tube	Tray	Tape & Reel

Engineering Selection Recommendations

The 71024S15TYG is a direct Renesas Electronics substitute with identical electrical specifications and the same 32-BSOJ package. This part is active in production and ROHS3 compliant, addressing the obsolescence and compliance limitations of the IDT71024S15TY.

The IS61C1024AL-12JLI and IS61C1024AL-12JLI-TR are ISSI manufactured alternatives offering improved performance with 12 ns access and write cycle times, compared to the original 15 ns specification. Both parts maintain full voltage and package compatibility. The IS61C1024AL-12JLI-TR is supplied in Tape & Reel packaging, while the IS61C1024AL-12JLI is supplied in Tray packaging. Both are ROHS3 compliant and rated for extended operating temperature range (-40°C to 85°C), providing greater environmental flexibility than the original part.

Frequently Asked Questions (FAQ)

Q: Can the 71024S15TYG directly replace the IDT71024S15TY?

A: Yes. The 71024S15TYG maintains identical memory capacity, organization, access time, write cycle time, supply voltage range, and 32-BSOJ package form factor. The primary differences are active product status and ROHS3 compliance.

Q: Are the ISSI IS61C1024AL-12JLI parts compatible with the original IDT71024S15TY?

A: Yes, with performance improvement. Both ISSI parts provide 12 ns access and write cycle times, which exceed the original 15 ns specification. Memory capacity, organization, supply voltage, and package remain identical. Operating temperature range is extended to -40°C to 85°C.

Q: What is the difference between IS61C1024AL-12JLI and IS61C1024AL-12JLI-TR?

A: Both parts are electrically identical. The difference is packaging: IS61C1024AL-12JLI is supplied in Tray format, while IS61C1024AL-12JLI-TR is supplied in Tape & Reel format. Selection depends on assembly process requirements and volume.

Q: Does the extended temperature range of ISSI parts affect compatibility?

A: No. The extended operating range (-40°C to 85°C) is a superset of the original specification (0°C to 70°C). Systems designed for the original temperature range operate within the ISSI part specifications.

Q: Are all substitute parts RoHS compliant?

A: The 71024S15TYG and both ISSI parts are ROHS3 compliant. The original IDT71024S15TY is RoHS non-compliant. For new designs and regulated applications, compliant substitutes are required.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message