DS1245YP-70 NVSRAM Memory IC Equivalent & Substitute Parts

Part Overview

The DS1245YP-70 is a Non-Volatile SRAM (NVSRAM) memory integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This 1Mbit parallel memory device combines SRAM speed with non-volatile storage capability, operating at 70 ns access time in a 34-PowerCap™ Module package. The main part number DS1245YP-70 is classified as obsolete, making identification of suitable substitutes essential for ongoing system support and component procurement.

Substiute Parts

DS1245YP-70

Analog Devices Inc./Maxim IntegratedIn Stock: 1140DS1245YP-70 Datasheet

Current PartRFQ

DS1245YP-70+

Analog Devices Inc./Maxim IntegratedIn Stock: 1272DS1245YP-70+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS1245YP-70 is determined by strict equivalence across the following critical parameters:

• Memory Type: Must be Non-Volatile SRAM (NVSRAM)
• Memory Size: Must be 1Mbit
• Memory Organization: Must be 128K x 8
• Memory Interface: Must be Parallel
• Access Time: Must be 70 ns or faster
• Write Cycle Time: Must be 70 ns or faster
• Supply Voltage: Must support 4.5V ~ 5.5V range
• Operating Temperature: Must support 0°C ~ 70°C minimum
• Package Type: Must be 34-PowerCap™ Module
• Mounting Type: Must be Surface Mount

The DS1245YP-70+ meets all substitution criteria as a direct equivalent with identical electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The DS1245YP-70+ is the direct functional equivalent of the DS1245YP-70. Both parts share identical electrical specifications, memory organization, and package configuration. The primary distinction is product status and regulatory compliance: the DS1245YP-70 is obsolete, while the DS1245YP-70+ maintains active production status and meets ROHS3 compliance requirements. For new designs and ongoing procurement, the DS1245YP-70+ is the appropriate selection. For legacy system maintenance requiring the exact obsolete part number, the DS1245YP-70 remains available in inventory (1073 Pcs), though the DS1245YP-70+ (1174 Pcs available) provides superior compliance posture and supply continuity.

Frequently Asked Questions (FAQ)

Q: Can DS1245YP-70+ be used as a direct replacement for DS1245YP-70?

A: Yes. The DS1245YP-70+ is electrically and mechanically identical to the DS1245YP-70. Both devices feature 1Mbit NVSRAM capacity, 128K x 8 organization, 70 ns access time, parallel interface, and 34-PowerCap™ Module packaging. No circuit modifications are required.

Q: What is the difference between DS1245YP-70 and DS1245YP-70+?

A: The DS1245YP-70+ is the active production variant with ROHS3 compliance certification. The DS1245YP-70 is classified as obsolete and does not meet current RoHS requirements. Electrical and functional performance are identical.

Q: Are there any package or pinout differences?

A: No. Both parts use the 34-PowerCap™ Module package with identical pinout and mechanical dimensions. Surface mount compatibility is maintained across both variants.

Q: What is the MSL rating and handling requirement?

A: Both parts carry MSL 3 (168 Hours) classification. Standard moisture control procedures for MSL 3 components must be observed during storage and assembly.

Q: Which part should be selected for new designs?

A: The DS1245YP-70+ should be selected for new designs due to active product status and ROHS3 compliance. This ensures long-term supply availability and regulatory alignment.