AT45DB041E-SSHNHA-T Equivalent & Substitute Parts

Part Overview

The AT45DB041E-SSHNHA-T is a 4Mbit FLASH memory IC manufactured by Renesas Electronics Corporation, designed for SPI interface applications operating at 85 MHz. This non-volatile memory device is configured as 264 bytes × 2048 pages and is housed in an 8-SOIC surface mount package. The part is currently in active production status and maintains full RoHS3 compliance. Substitute parts are identified to address packaging format availability, inventory requirements, and supply chain flexibility while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Specification
Memory Size	4Mbit
Memory Format	FLASH
Memory Organization	264 Bytes × 2048 pages
Interface	SPI
Clock Frequency	85 MHz
Write Cycle Time (Word/Page)	8µs / 3ms
Supply Voltage	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Package	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
MSL Rating	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the AT45DB041E-SSHNHA-T are qualified based on identical electrical performance and mechanical compatibility. The substitution criteria are strictly limited to the following parameters:

Memory capacity: 4Mbit
Memory organization: 264 Bytes × 2048 pages
Interface protocol: SPI
Operating frequency: 85 MHz
Supply voltage range: 1.65V ~ 3.6V
Operating temperature range: -40°C ~ 85°C
Package type: 8-SOIC
Package dimensions: 0.154" × 3.90mm width
RoHS3 compliance
MSL rating: 1

The identified substitutes differ only in packaging format (Tape & Reel versus Cut Tape & Digi-Reel) and inventory availability. All electrical specifications, memory organization, interface characteristics, and environmental ratings remain identical across the substitute group.

Parameter Comparison

Parameter	AT45DB041E-SSHNHA-T	AT45DB041E-SSHN-T	AT45DB041E-SSHNHC-T
Manufacturer	Renesas Electronics Corporation	Renesas Electronics Corporation	Renesas Electronics Corporation
Memory Size	4Mbit	4Mbit	4Mbit
Memory Organization	264 Bytes × 2048 pages	264 Bytes × 2048 pages	264 Bytes × 2048 pages
Interface	SPI	SPI	SPI
Clock Frequency	85 MHz	85 MHz	85 MHz
Write Cycle Time (Word/Page)	8µs / 3ms	8µs / 3ms	8µs / 3ms
Supply Voltage	1.65V ~ 3.6V	1.65V ~ 3.6V	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Packaging Format	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active

Engineering Selection Recommendations

All three parts within this substitute group maintain active production status and full RoHS3 compliance. Selection between AT45DB041E-SSHNHA-T, AT45DB041E-SSHN-T, and AT45DB041E-SSHNHC-T is determined by packaging format requirements and procurement specifications rather than electrical or functional differences.

AT45DB041E-SSHNHA-T and AT45DB041E-SSHNHC-T are supplied in Tape & Reel format, suitable for high-volume automated assembly operations. AT45DB041E-SSHN-T is supplied in Cut Tape and Digi-Reel format, appropriate for lower-volume applications or mixed component sourcing scenarios. Inventory availability varies across the three options, with AT45DB041E-SSHN-T currently showing higher stock levels (43,100 units) compared to AT45DB041E-SSHNHA-T (3,259 units) and AT45DB041E-SSHNHC-T (3,671 units).

Frequently Asked Questions (FAQ)

Q: Are these parts electrically interchangeable? A: Yes. AT45DB041E-SSHNHA-T, AT45DB041E-SSHN-T, and AT45DB041E-SSHNHC-T are electrically identical. All three devices feature 4Mbit FLASH memory, SPI interface, 85 MHz operation, and identical electrical specifications across voltage, temperature, and timing parameters.

Q: What is the difference between these substitute parts? A: The primary difference is packaging format. AT45DB041E-SSHNHA-T and AT45DB041E-SSHNHC-T are supplied in Tape & Reel format, while AT45DB041E-SSHN-T is supplied in Cut Tape and Digi-Reel format. All three use the same 8-SOIC package with identical pin configuration and mechanical dimensions.

Q: Can I use AT45DB041E-SSHN-T as a direct replacement for AT45DB041E-SSHNHA-T? A: Yes, for circuit design and functional operation. The Cut Tape and Digi-Reel packaging of AT45DB041E-SSHN-T is mechanically compatible with the same PCB footprint. Assembly process compatibility depends on your production equipment specifications for tape format handling.

Q: Are all three parts RoHS3 compliant? A: Yes. AT45DB041E-SSHNHA-T, AT45DB041E-SSHN-T, and AT45DB041E-SSHNHC-T all maintain ROHS3 compliance and MSL rating 1 (Unlimited moisture sensitivity level).

Q: Which part should I select for high-volume production? A: AT45DB041E-SSHNHA-T or AT45DB041E-SSHNHC-T are recommended for high-volume automated assembly due to Tape & Reel packaging compatibility with standard pick-and-place equipment.

Q: Which part should I select for prototyping or low-volume applications? A: AT45DB041E-SSHN-T in Cut Tape and Digi-Reel format is suitable for prototyping and lower-volume applications where component quantities are smaller and packaging format flexibility is beneficial.

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