DS1213C Equivalent & Substitute Parts

Part Overview

The DS1213C is a Smartsocket SRAM memory integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This 256Kbit through-hole memory device operates within a 4.75V to 5.5V supply voltage range and supports operating temperatures from 0°C to 70°C. The component is classified as obsolete, making identification of functionally equivalent alternatives essential for system maintenance, repair, and legacy product support.

Substiute Parts

DS1213C

Analog Devices Inc./Maxim IntegratedIn Stock: 2677DS1213C Datasheet

Current PartRFQ

M48Z35-70PC1

STMicroelectronicsIn Stock: 1675M48Z35-70PC1 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1213C is determined by strict alignment of the following parameters:

• Memory capacity: 256Kbit minimum
• Supply voltage compatibility: 4.75V ~ 5.5V
• Operating temperature range: 0°C ~ 70°C minimum
• Package form factor: 28-DIP through-hole configuration
• Memory interface: Parallel access capability
• Physical dimensions: 0.600" (15.24mm) width tolerance

The M48Z35-70PC1 meets all substitution criteria as a 256Kbit parallel memory device in 28-DIP packaging with identical voltage and temperature specifications.

Parameter Comparison

Engineering Selection Recommendations

The M48Z35-70PC1 serves as the primary substitute for the DS1213C based on the following factors:

Electrical compatibility is established through matching supply voltage ranges (4.75V ~ 5.5V) and operating temperature specifications (0°C ~ 70°C). Both devices support 256Kbit memory capacity with parallel interface architecture, ensuring functional equivalence in legacy system applications.

Mechanical compatibility is confirmed through identical 28-DIP package geometry with 0.600" (15.24mm) width specification, enabling direct socket replacement without PCB modification.

The M48Z35-70PC1 holds active product status with ROHS3 compliance certification, providing supply chain availability and regulatory alignment for new production or system refresh initiatives. The DS1213C's obsolete classification necessitates substitution for ongoing system support.

Frequently Asked Questions (FAQ)

Q: Can the M48Z35-70PC1 replace the DS1213C in existing designs?

A: Yes. Both devices share identical supply voltage (4.75V ~ 5.5V), operating temperature range (0°C ~ 70°C), memory capacity (256Kbit), parallel interface architecture, and 28-DIP package dimensions (0.600", 15.24mm). Direct socket replacement is supported without circuit modification.

Q: What is the primary difference between these devices?

A: The M48Z35-70PC1 is classified as Non-Volatile SRAM (NVSRAM) technology, whereas the DS1213C is specified as Smartsocket SRAM. Both maintain 256Kbit capacity and identical electrical specifications. The M48Z35-70PC1 holds active product status with ROHS3 compliance, while the DS1213C is obsolete and RoHS non-compliant.

Q: Are there package compatibility concerns?

A: No. Both devices use 28-DIP through-hole packaging with matching 0.600" (15.24mm) width specification. Pin count and spacing are identical, ensuring mechanical interchangeability.

Q: What certifications apply to the substitute part?

A: The M48Z35-70PC1 holds ROHS3 compliance and REACH unaffected status. The DS1213C is RoHS non-compliant and REACH unaffected. Regulatory requirements for your application determine which certification status is applicable.

Q: Is the 70 ns access time specification critical for substitution?

A: Access time is a performance parameter. The M48Z35-70PC1 specifies 70 ns access time. If your application requires specific timing characteristics, verify that 70 ns meets system requirements. The DS1213C access time specification is not provided in available documentation.