DS1230ABP-70 NVSRAM 256Kbit Parallel Memory IC Equivalent & Substitute Parts

Part Overview

The DS1230ABP-70 is a Non-Volatile SRAM (NVSRAM) memory integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This device provides 256Kbit storage capacity in a parallel interface configuration with 70 nanosecond access time, housed in a 34-PowerCap™ Module package. The main part number DS1230ABP-70 is classified as obsolete, making identification of suitable substitute components essential for system maintenance, repair, and legacy product support. The active variant DS1230ABP-70+ serves as the direct replacement option while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile SRAM (NVSRAM)
Memory Size	256Kbit
Memory Organization	32K x 8
Memory Interface	Parallel
Access Time	70 ns
Write Cycle Time	70 ns
Supply Voltage	4.75V ~ 5.25V
Operating Temperature Range	0°C ~ 70°C (TA)
Package Type	34-PowerCap™ Module
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the DS1230ABP-70 is determined by strict equivalence across the following critical parameters:

Memory capacity and organization (256Kbit, 32K x 8 configuration)
Memory technology (NVSRAM)
Interface type (Parallel)
Access and write cycle timing (70 ns)
Supply voltage range (4.75V ~ 5.25V)
Operating temperature range (0°C ~ 70°C)
Physical package (34-PowerCap™ Module)
Mounting method (Surface Mount)
Moisture sensitivity classification (MSL 3)

The DS1230ABP-70+ meets all substitution criteria as a direct equivalent. The primary distinction between the main part and its substitute is product status: DS1230ABP-70 is obsolete, while DS1230ABP-70+ is active in production. Additionally, DS1230ABP-70+ carries RoHS3 compliance certification, whereas the original DS1230ABP-70 is RoHS non-compliant.

Parameter Comparison

Parameter	DS1230ABP-70 (Main)	DS1230ABP-70+ (Substitute)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Memory Type	Non-Volatile SRAM	Non-Volatile SRAM
Memory Size	256Kbit	256Kbit
Memory Organization	32K x 8	32K 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	0°C ~ 70°C	0°C ~ 70°C
Package Type	34-PowerCap™ Module	34-PowerCap™ Module
Mounting Type	Surface Mount	Surface Mount
MSL Rating	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active
RoHS Compliance	RoHS non-compliant	RoHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected
Packaging Format	Standard	Tube

Engineering Selection Recommendations

The DS1230ABP-70+ is the appropriate substitute for the obsolete DS1230ABP-70. Both parts are electrically and mechanically identical across all functional parameters. Selection of DS1230ABP-70+ is justified on the following grounds:

Functional equivalence: All memory specifications, timing characteristics, voltage requirements, and temperature ratings are identical.
Product availability: DS1230ABP-70+ maintains active production status with documented inventory availability, whereas DS1230ABP-70 is obsolete.
Regulatory compliance: DS1230ABP-70+ carries RoHS3 certification, meeting current environmental and regulatory standards for electronic components in many jurisdictions.
Physical compatibility: Identical package type, pin configuration, and mounting method ensure direct board-level replacement without design modification.

Frequently Asked Questions (FAQ)

Q: Can DS1230ABP-70+ be used as a direct replacement for DS1230ABP-70 in existing designs?

A: Yes. DS1230ABP-70+ is electrically and mechanically equivalent to DS1230ABP-70. All functional parameters, including memory capacity, access time, voltage requirements, temperature range, and package specifications are identical. Direct substitution is possible without circuit modification.

Q: What is the primary difference between DS1230ABP-70 and DS1230ABP-70+?

A: The main differences are product status and regulatory compliance. DS1230ABP-70 is obsolete and RoHS non-compliant, while DS1230ABP-70+ is active in production and RoHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are there any compatibility concerns when replacing DS1230ABP-70 with DS1230ABP-70+?

A: No compatibility concerns exist. Both parts use the 34-PowerCap™ Module package with identical pin assignments and electrical characteristics. The MSL rating (3, 168 Hours) is the same for both variants, requiring identical handling and storage protocols.

Q: What does RoHS3 compliance mean for DS1230ABP-70+?

A: RoHS3 compliance indicates that DS1230ABP-70+ meets the Restriction of Hazardous Substances Directive requirements, limiting the use of specific hazardous materials in electrical and electronic equipment. This certification is relevant for applications subject to environmental regulations in the European Union and other jurisdictions with equivalent standards.

Q: Is the packaging format difference (standard vs. tube) significant for substitution?

A: The packaging format difference does not affect electrical or mechanical compatibility. DS1230ABP-70+ is supplied in tube packaging, which is a standard distribution method. The component itself remains identical; only the delivery format differs.

Q: What are the critical parameters that define substitution eligibility for this NVSRAM device?

A: Substitution eligibility is determined by equivalence in memory capacity (256Kbit), organization (32K x 8), technology (NVSRAM), interface type (Parallel), access time (70 ns), supply voltage (4.75V ~ 5.25V), operating temperature range (0°C ~ 70°C), and physical package (34-PowerCap™ Module). All these parameters must match for functional substitution.

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