DS1220AD-100IND+ Equivalent & Substitute Parts

Part Overview

The DS1220AD-100IND+ is a Non-Volatile SRAM (NVSRAM) memory integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This 16Kbit parallel memory device combines SRAM speed with non-volatile storage capability, making it suitable for applications requiring data retention without external power. The part is currently in active production status with full RoHS3 compliance and REACH unaffected classification. Finding equivalent or substitute parts is necessary when addressing supply chain constraints, inventory optimization, or design flexibility requirements while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Memory Type	Non-Volatile SRAM (NVSRAM)
Memory Size	16Kbit
Memory Organization	2K x 8
Memory Interface	Parallel
Access Time	100 ns
Write Cycle Time	100 ns
Supply Voltage	4.5V ~ 5.5V
Operating Temperature Range	-40°C ~ 85°C
Package Type	24-DIP Module (0.600", 15.24mm)
Mounting Type	Through Hole
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the DS1220AD-100IND+ is determined by strict equivalence across the following critical parameters:

Memory technology must be NVSRAM (Non-Volatile SRAM) to preserve the non-volatile data retention characteristic. Memory capacity must be exactly 16Kbit with 2K x 8 organization to ensure pin-compatible operation and identical address/data bus requirements. The parallel interface is mandatory for direct PCB integration without protocol conversion. Access time and write cycle time specifications of 100 ns establish the performance baseline. Supply voltage range of 4.5V ~ 5.5V and operating temperature range of -40°C ~ 85°C define the environmental operating envelope. Package type must be 24-DIP Module with 0.600" (15.24mm) pitch for mechanical and electrical pin compatibility. RoHS3 compliance and MSL Level 1 classification ensure regulatory and handling consistency.

Based on the provided input data, the DS1220AD-100IND+ is listed as its own direct equivalent with no additional substitute parts specified.

Parameter Comparison

Parameter	DS1220AD-100IND+ (Main Part)	DS1220AD-100IND+ (Direct Equivalent)
Manufacturer	Analog Devices Inc./Maxim Integrated	Analog Devices Inc./Maxim Integrated
Memory Type	Non-Volatile SRAM	Non-Volatile SRAM
Memory Size	16Kbit	16Kbit
Memory Organization	2K x 8	2K x 8
Access Time	100 ns	100 ns
Write Cycle Time	100 ns	100 ns
Supply Voltage	4.5V ~ 5.5V	4.5V ~ 5.5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C
Package Type	24-DIP Module	24-DIP Module
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active

Engineering Selection Recommendations

The DS1220AD-100IND+ maintains active production status with full regulatory compliance (RoHS3 Compliant, REACH Unaffected). Current inventory availability is 1459 pieces in new original condition. When selecting this component or its equivalents, verify that the application requirements align with the specified 100 ns access and write cycle times, 4.5V to 5.5V supply voltage range, and -40°C to 85°C operating temperature envelope. The 24-DIP through-hole package requires PCB footprint compatibility with 0.600" (15.24mm) pitch spacing. MSL Level 1 classification indicates unlimited shelf life under standard storage conditions. All regulatory certifications remain consistent across equivalent part selections.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the DS1220AD-100IND+? A: A valid substitute must match all critical parameters: 16Kbit NVSRAM technology, 2K x 8 organization, parallel interface, 100 ns access/write times, 4.5V-5.5V supply voltage, -40°C to 85°C operating range, and 24-DIP package format. Any deviation in these specifications disqualifies a part from direct substitution.

Q: Is the DS1220AD-100IND+ pin-compatible with other memory devices? A: Pin compatibility is guaranteed only with parts sharing identical 24-DIP package configuration, memory organization (2K x 8), and parallel interface protocol. Different memory types, capacities, or package formats require circuit redesign.

Q: What is the significance of the 100 ns timing specification? A: The 100 ns specification defines both access time (data retrieval latency) and write cycle time (data storage latency). This timing is critical for synchronous system integration and cannot be exceeded in direct substitution scenarios.

Q: Does RoHS3 compliance affect substitution eligibility? A: Yes. All substitute parts must maintain RoHS3 compliance to ensure regulatory consistency and material composition equivalence. Non-compliant alternatives introduce supply chain and environmental compliance risks.

Q: Can this part operate outside the -40°C to 85°C temperature range? A: No. The DS1220AD-100IND+ is specified for -40°C to 85°C operation only. Extended temperature variants (if available) would require different part numbers and are not direct substitutes.

Q: What does MSL Level 1 mean for handling and storage? A: MSL Level 1 indicates unlimited moisture sensitivity level, meaning the component has no moisture-related shelf life restrictions under standard storage conditions. Standard ESD precautions remain applicable.

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