25LC160AT-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC160AT-E/ST is a 16Kbit Serial Peripheral Interface (SPI) EEPROM memory IC manufactured by Microchip Technology in an 8-TSSOP surface mount package. This non-volatile memory device operates across a supply voltage range of 2.5V to 5.5V and supports a 10 MHz clock frequency with a 5ms write cycle time. The part is currently in active production status with RoHS3 compliance and unlimited moisture sensitivity level (MSL 1).

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required, or when design specifications allow for enhanced performance parameters such as increased clock frequency or extended temperature ranges.

Substiute Parts

25LC160AT-E/ST

Microchip TechnologyIn Stock: 118425LC160AT-E/ST Datasheet

Current PartRFQ

25LC160A-E/ST

Microchip TechnologyIn Stock: 99425LC160A-E/ST Datasheet

DirectRFQ

AT25160B-XHL-B

Microchip TechnologyIn Stock: 4405AT25160B-XHL-B Datasheet

MFR RecommendedRFQ

CAT25160YI-GT3

onsemiIn Stock: 3159CAT25160YI-GT3 Datasheet

MFR RecommendedRFQ

CAV25160YE-GT3

onsemiIn Stock: 1581CAV25160YE-GT3 Datasheet

MFR RecommendedRFQ

M95160-DFDW6TP

STMicroelectronicsIn Stock: 1157M95160-DFDW6TP Datasheet

MFR RecommendedRFQ

M95160-RDW6TP

STMicroelectronicsIn Stock: 53472M95160-RDW6TP Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 25LC160AT-E/ST is determined by the following critical parameters:

Core Compatibility Requirements:

• Memory Size: 16Kbit (mandatory)
• Memory Organization: 2K x 8 (mandatory)
• Memory Interface: SPI (mandatory)
• Package Type: 8-TSSOP (mandatory)
• Write Cycle Time: 5ms (mandatory)

Flexible Parameters (allowing substitution with different values):

• Clock Frequency: 10 MHz or higher
• Voltage Supply Range: Must encompass or exceed 2.5V ~ 5.5V
• Operating Temperature: May differ based on application requirements
• Packaging Format: Cut Tape, Tube, or Tape & Reel acceptable
• Manufacturer: Microchip Technology, STMicroelectronics, or onsemi

Substitute parts are grouped into three categories: direct equivalents (identical specifications), enhanced performance variants (higher clock frequency), and automotive-grade alternatives (AEC-Q100 qualified).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Identical Specifications): The 25LC160A-E/ST is a direct equivalent to the 25LC160AT-E/ST, maintaining identical electrical specifications and operating parameters. Both parts are manufactured by Microchip Technology with RoHS3 compliance. The primary difference is packaging format (Tube versus Cut Tape).

Enhanced Performance Variants: The AT25160B-XHL-B, CAT25160YI-GT3, and M95160-DFDW6TP offer doubled clock frequency (20 MHz) compared to the primary part. These variants are suitable for applications requiring higher data throughput. All three maintain the 5ms write cycle time and 16Kbit capacity. The AT25160B-XHL-B and CAT25160YI-GT3 reduce the minimum supply voltage to 1.8V, while M95160-DFDW6TP extends the minimum to 1.7V. Operating temperature range is reduced to -40°C ~ 85°C for these enhanced variants.

Automotive-Grade Alternative: The CAV25160YE-GT3 is AEC-Q100 qualified and maintains the original operating temperature range of -40°C ~ 125°C with 20 MHz clock frequency. This part is suitable for automotive applications requiring enhanced reliability certification.

High-Availability Alternative: The M95160-RDW6TP maintains the 10 MHz clock frequency specification with significantly higher inventory availability (53,400 pieces). This part is manufactured by STMicroelectronics and operates across 1.8V ~ 5.5V supply range with -40°C ~ 85°C temperature range.

Frequently Asked Questions (FAQ)

Q: Can I substitute the 25LC160AT-E/ST with the 25LC160A-E/ST? A: Yes. Both parts are direct equivalents with identical electrical and functional specifications. The difference is packaging format: 25LC160AT-E/ST is supplied in Cut Tape while 25LC160A-E/ST is supplied in Tube.

Q: What are the advantages of using AT25160B-XHL-B or CAT25160YI-GT3 as substitutes? A: These parts offer doubled clock frequency (20 MHz versus 10 MHz), enabling faster data transfer rates. Both maintain full SPI compatibility and 16Kbit capacity. Trade-offs include reduced operating temperature range (-40°C ~ 85°C versus -40°C ~ 125°C) and lower minimum supply voltage (1.8V versus 2.5V).

Q: Is the M95160-RDW6TP a suitable substitute? A: Yes, for applications where the 10 MHz clock frequency is acceptable. This STMicroelectronics part maintains frequency parity with the primary part and offers exceptional inventory availability. Operating temperature range is -40°C ~ 85°C, and minimum supply voltage is 1.8V.

Q: When should I use the CAV25160YE-GT3? A: The CAV25160YE-GT3 is specified for automotive applications requiring AEC-Q100 qualification. It maintains the original -40°C ~ 125°C operating temperature range while providing 20 MHz clock frequency.

Q: Are all substitute parts RoHS3 compliant? A: Yes. All listed substitute parts maintain RoHS3 compliance status.

Q: Do all parts use the same 8-TSSOP package? A: Yes. All substitute parts use the identical 8-TSSOP (0.173", 4.40mm Width) package, ensuring mechanical and electrical pin compatibility.

Q: What is the difference between Cut Tape and Tube packaging? A: Cut Tape (CT) and Tube are different supply formats for surface mount components. Both formats contain the same die and electrical specifications. Selection depends on assembly process requirements and handling preferences.