AT45DB041E-SSHNHT-B Equivalent & Substitute Parts

Part Overview

The AT45DB041E-SSHNHT-B is a 4Mbit Serial Peripheral Interface (SPI) FLASH memory IC manufactured by Renesas Electronics Corporation. This non-volatile memory device operates at 85 MHz and is housed in an 8-SOIC surface mount package. The part is currently in active production status and maintains full RoHS3 compliance with unlimited moisture sensitivity level rating.

Substitute parts are necessary when the original part number becomes unavailable, when packaging format requirements differ (tube versus tape & reel), or when specific temperature operating ranges must be accommodated within the same functional specification.

Key Parameters

Parameter	Value
Memory Size	4Mbit
Memory Format	FLASH
Memory Interface	SPI
Clock Frequency	85 MHz
Memory Organization	264 Bytes x 2048 pages
Write Cycle Time (Word)	8µs
Write Cycle Time (Page)	3ms
Supply Voltage Range	1.65V ~ 3.6V
Package / Case	8-SOIC (0.209", 5.30mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the AT45DB041E-SSHNHT-B is determined by the following critical parameters:

Memory capacity: 4Mbit
Interface protocol: SPI
Clock frequency: 85 MHz
Memory organization: 264 Bytes x 2048 pages
Package type: 8-SOIC surface mount
Supply voltage: 1.65V ~ 3.6V
RoHS3 compliance status

The substitute parts AT45DB041E-SHN-B and AT45DB041E-SHNHA-T maintain identical electrical specifications and package dimensions. Differences exist only in packaging format (tube versus tape & reel) and operating temperature range, which do not affect functional interchangeability in applications where the specified temperature range is acceptable.

Parameter Comparison

Parameter	AT45DB041E-SSHNHT-B	AT45DB041E-SHN-B	AT45DB041E-SHNHA-T
Memory Size	4Mbit	4Mbit	4Mbit
Memory Format	FLASH	FLASH	FLASH
Memory Interface	SPI	SPI	SPI
Clock Frequency	85 MHz	85 MHz	85 MHz
Memory Organization	264 Bytes x 2048 pages	264 Bytes x 2048 pages	264 Bytes x 2048 pages
Write Cycle Time (Word)	8µs	8µs	8µs
Write Cycle Time (Page)	3ms	3ms	3ms
Supply Voltage Range	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 125°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC (0.209", 5.30mm Width)	8-SOIC (0.209", 5.30mm Width)	8-SOIC (0.209", 5.30mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Tube	Tube	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts maintain active production status with full RoHS3 compliance and identical electrical performance specifications. Selection between these parts should be based on the following factors:

AT45DB041E-SSHNHT-B and AT45DB041E-SHN-B are both supplied in tube packaging format. The AT45DB041E-SSHNHT-B supports an extended operating temperature range of -40°C to 125°C, making it suitable for applications requiring higher temperature operation. The AT45DB041E-SHN-B operates within -40°C to 85°C and carries verified programmability status.

AT45DB041E-SHNHA-T is supplied in tape & reel format, which is standard for high-volume automated assembly processes. This part operates within the -40°C to 85°C temperature range and is suitable for production environments utilizing pick-and-place equipment.

Selection should prioritize the part that matches your assembly process requirements (tube for manual or low-volume assembly; tape & reel for automated high-volume production) and your application's operating temperature specifications.

Frequently Asked Questions (FAQ)

Q: Can AT45DB041E-SHN-B replace AT45DB041E-SSHNHT-B in all applications?

A: Functional replacement is possible if your application operates within the -40°C to 85°C temperature range. If your design requires operation above 85°C, the AT45DB041E-SSHNHT-B with its extended -40°C to 125°C range is required.

Q: What is the difference between tube and tape & reel packaging?

A: Tube packaging is used for manual handling and low-volume assembly. Tape & reel packaging is designed for automated pick-and-place assembly equipment in high-volume production. Both formats contain identical components; the difference is in delivery and handling method.

Q: Are all three parts electrically identical?

A: Yes. All three parts share identical memory capacity (4Mbit), interface protocol (SPI), clock frequency (85 MHz), memory organization (264 Bytes x 2048 pages), write cycle times, and supply voltage specifications (1.65V ~ 3.6V). The only differences are operating temperature range and packaging format.

Q: Which part should I select for high-volume manufacturing?

A: AT45DB041E-SHNHA-T in tape & reel format is optimized for automated assembly processes. If your production line requires tube packaging, either AT45DB041E-SSHNHT-B or AT45DB041E-SHN-B can be used depending on temperature requirements.

Q: Do all parts have the same RoHS compliance status?

A: Yes. All three parts are ROHS3 compliant with unlimited moisture sensitivity level (MSL 1), making them suitable for standard PCB assembly and storage conditions.

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