DS1245BL-70IND Equivalent & Substitute Parts

Part Overview

The DS1245BL-70IND is a Non-Volatile SRAM (NVSRAM) memory integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This 1Mbit parallel memory device provides 128K x 8 organization with 70 ns access time and operates across the industrial temperature range of -40°C to 85°C. The part is currently classified as obsolete, making identification of suitable substitute components essential for system maintenance, repair, and legacy product support.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile SRAM (NVSRAM)
Memory Size	1Mbit
Memory Organization	128K x 8
Memory Interface	Parallel
Access Time	70 ns
Write Cycle Time	70 ns
Supply Voltage	4.75V ~ 5.25V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package Type	34-LPM

Substitute Part Grouping Explanation

Substitution of the DS1245BL-70IND is determined by strict equivalence across the following critical parameters:

Memory Type: Non-Volatile SRAM (NVSRAM)
Memory Size: 1Mbit capacity
Memory Organization: 128K x 8 configuration
Memory Interface: Parallel interface
Access Time: 70 ns maximum
Write Cycle Time: 70 ns maximum
Supply Voltage Range: 4.75V ~ 5.25V
Operating Temperature Range: -40°C ~ 85°C
Mounting Type: Surface Mount

The DS1245ABP-70IND+ meets all electrical and functional parameters required for direct substitution. While the package designation differs (34-PowerCap™ Module versus 34-LPM), both are surface mount configurations compatible with the same pinout and electrical interface requirements.

Parameter Comparison

Parameter	DS1245BL-70IND (Main Part)	DS1245ABP-70IND+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Memory Type	Non-Volatile SRAM	Non-Volatile SRAM
Memory Size	1Mbit	1Mbit
Memory Organization	128K x 8	128K x 8
Memory Interface	Parallel	Parallel
Access Time	70 ns	70 ns
Write Cycle Time	70 ns	70 ns
Supply Voltage	4.75V ~ 5.25V	4.75V ~ 5.25V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Mounting Type	Surface Mount	Surface Mount
Package / Case	34-LPM	34-PowerCap™ Module
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

The DS1245ABP-70IND+ is the direct functional equivalent for the obsolete DS1245BL-70IND. Selection of the substitute part is based on the following factors:

Product Status: The DS1245ABP-70IND+ maintains active product status with ongoing manufacturer support, whereas the DS1245BL-70IND is obsolete and subject to discontinuation.

Regulatory Compliance: The DS1245ABP-70IND+ achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The original DS1245BL-70IND does not meet RoHS standards.

Electrical Equivalence: Both parts maintain identical electrical specifications across memory capacity, access time, write cycle time, supply voltage, and operating temperature range, ensuring functional interchangeability in parallel NVSRAM applications.

Package Consideration: The substitute employs a 34-PowerCap™ Module package versus the 34-LPM package of the original part. Both are surface mount configurations with compatible pinout and electrical interface characteristics.

Moisture Sensitivity: The substitute part carries MSL 3 rating (168 hours) compared to MSL 1 (unlimited) for the original. This requires adherence to moisture control procedures during storage and handling per IPC-A-610 standards.

Frequently Asked Questions (FAQ)

Q: Can DS1245ABP-70IND+ directly replace DS1245BL-70IND in existing designs?

A: Yes. Both parts are electrically equivalent across all functional parameters: 1Mbit NVSRAM, 128K x 8 organization, 70 ns access time, parallel interface, and identical supply voltage and operating temperature specifications. The package difference (34-PowerCap™ Module versus 34-LPM) does not affect electrical compatibility or pinout.

Q: What is the difference between the 34-LPM and 34-PowerCap™ Module packages?

A: Both are 34-pin surface mount packages. The 34-PowerCap™ Module incorporates integrated power supply decoupling, whereas the 34-LPM is a standard leadless package. Both maintain compatible pinout and electrical interface requirements for parallel NVSRAM applications.

Q: Why is the original DS1245BL-70IND classified as obsolete?

A: The DS1245BL-70IND has reached end-of-life status with the manufacturer. The DS1245ABP-70IND+ represents the active product line continuation with equivalent functionality and improved regulatory compliance.

Q: Are there any compliance differences between the two parts?

A: The DS1245ABP-70IND+ is ROHS3 compliant, meeting current environmental regulations. The DS1245BL-70IND is RoHS non-compliant. Both parts are REACH unaffected and carry identical ECCN and HTSUS classifications.

Q: What is the moisture sensitivity difference, and does it affect substitution?

A: The DS1245ABP-70IND+ carries MSL 3 (168 hours) versus MSL 1 (unlimited) for the original part. This requires moisture control during storage and handling per IPC-A-610 standards but does not affect electrical performance or functional substitution capability.

Q: Are both parts available from the same manufacturer?

A: Yes. Both DS1245BL-70IND and DS1245ABP-70IND+ are manufactured by Analog Devices Inc./Maxim Integrated, ensuring consistent quality and technical support.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message