AT25DF512C-XMHNGU-T Equivalent & Substitute Parts

Part Overview

The AT25DF512C-XMHNGU-T is a 512Kbit SPI FLASH memory IC manufactured by Renesas Electronics Corporation in an 8-TSSOP surface mount package. This non-volatile memory device operates at 104 MHz with a supply voltage range of 1.65V to 3.6V and is rated for industrial temperature applications (-40°C to 85°C). The part is currently in active production status with ROHS3 compliance and REACH unaffected classification. Substitute parts are identified when equivalent electrical specifications, memory organization, interface protocol, and package form factor are maintained across the product line.

Key Parameters

Parameter	Value
Memory Size	512Kbit
Memory Organization	64K x 8
Memory Interface	SPI
Clock Frequency	104 MHz
Voltage Supply Range	1.65V ~ 3.6V
Operating Temperature	-40°C ~ 85°C
Package Type	8-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the AT25DF512C-XMHNGU-T are qualified based on the following criteria:

Electrical Compatibility Requirements:

Memory capacity: 512Kbit
Memory organization: 64K x 8
Interface protocol: SPI
Supply voltage range: 1.65V ~ 3.6V
Operating temperature range: -40°C ~ 85°C
Clock frequency: 104 MHz

Mechanical Compatibility Requirements:

Package type: 8-TSSOP
Package dimensions: 0.173" × 4.40mm width
Mounting type: Surface Mount

Compliance Requirements:

RoHS3 compliance
REACH unaffected status
Active product status

Parts meeting all electrical, mechanical, and compliance criteria are classified as direct substitutes. Variations in write cycle timing and moisture sensitivity level do not preclude substitution when all primary parameters align.

Parameter Comparison

Parameter	AT25DF512C-XMHNGU-T	AT25DF512C-XMHN-T	AT25XE512C-XMHN-T
Manufacturer	Renesas Electronics	Renesas Electronics	Renesas Electronics
Memory Size	512Kbit	512Kbit	512Kbit
Memory Organization	64K x 8	64K x 8	64K x 8
Memory Interface	SPI	SPI	SPI
Clock Frequency	104 MHz	104 MHz	104 MHz
Write Cycle Time - Word	8µs	8µs	12µs
Write Cycle Time - Page	4.6ms	4.6ms	3ms
Voltage Supply	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 Type	8-TSSOP	8-TSSOP	8-TSSOP
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Product Status	Active	Active	Active
Moisture Sensitivity Level	3 (168 Hours)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

Both AT25DF512C-XMHN-T and AT25XE512C-XMHN-T are qualified substitutes for the AT25DF512C-XMHNGU-T based on matching electrical specifications, package form factor, and compliance certifications.

AT25DF512C-XMHN-T maintains identical write cycle timing (8µs word, 4.6ms page) and differs only in moisture sensitivity level (MSL 1 versus MSL 3). This part is recommended for applications where extended shelf life or reduced moisture sensitivity requirements are beneficial.

AT25XE512C-XMHN-T operates within the same electrical envelope but exhibits different write cycle characteristics (12µs word, 3ms page). This part is suitable for applications where write cycle timing variations are acceptable within system design parameters. The MSL 1 rating provides improved moisture handling characteristics.

All three parts maintain active production status, ROHS3 compliance, and REACH unaffected classification, ensuring long-term availability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can AT25DF512C-XMHN-T be used as a direct replacement for AT25DF512C-XMHNGU-T?

A: Yes. Both parts share identical memory capacity (512Kbit), organization (64K x 8), SPI interface, clock frequency (104 MHz), voltage range (1.65V ~ 3.6V), operating temperature (-40°C ~ 85°C), and 8-TSSOP package. The difference in moisture sensitivity level (MSL 1 versus MSL 3) does not affect electrical compatibility.

Q: What are the differences between AT25DF512C-XMHN-T and AT25XE512C-XMHN-T?

A: Both parts are electrically compatible with identical memory specifications and SPI interface. The AT25XE512C-XMHN-T exhibits different write cycle timing: 12µs word write versus 8µs, and 3ms page write versus 4.6ms. Both maintain 104 MHz clock frequency and identical voltage/temperature ratings. Selection depends on whether write cycle timing variations are acceptable for the target application.

Q: Are all three parts available in the same package?

A: Yes. All three parts use the 8-TSSOP surface mount package with identical dimensions (0.173" × 4.40mm width), ensuring mechanical compatibility in PCB layouts.

Q: Do all substitute parts meet the same compliance standards?

A: Yes. All three parts are ROHS3 compliant, REACH unaffected, and maintain active production status with identical ECCN (EAR99) and HTSUS (8542.32.0071) classifications.

Q: Which part should be selected for moisture-sensitive applications?

A: Both AT25DF512C-XMHN-T and AT25XE512C-XMHN-T carry MSL 1 (Unlimited) ratings, providing superior moisture handling compared to the AT25DF512C-XMHNGU-T (MSL 3, 168 Hours). Either substitute is suitable for applications requiring extended moisture protection.

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