25LC160B-E/ST EEPROM Memory IC Equivalent & Substitute Parts

Part Overview

The 25LC160B-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 at 10 MHz clock frequency with a 2.5V to 5.5V supply voltage range and supports operating temperatures from -40°C to 125°C. The part is currently active in production status with ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1). Equivalent and substitute parts are identified when they maintain identical memory capacity, organization, interface protocol, package form factor, and compatible electrical specifications within acceptable operational parameters.

Substiute Parts

25LC160B-E/ST

Microchip TechnologyIn Stock: 114025LC160B-E/ST Datasheet

Current PartRFQ

25LC160A-E/ST

Microchip TechnologyIn Stock: 99425LC160A-E/ST Datasheet

MFR RecommendedRFQ

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-RDW6TP

STMicroelectronicsIn Stock: 53472M95160-RDW6TP Datasheet

MFR RecommendedRFQ

S-25C160A0I-T8T1U3

ABLIC Inc.In Stock: 729S-25C160A0I-T8T1U3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 25LC160B-E/ST is determined by strict equivalence in the following critical parameters: 16Kbit memory capacity, 2K x 8 organization, SPI interface protocol, 8-TSSOP package form factor, and compatible electrical operating ranges. Substitute parts must maintain the same memory type (EEPROM), technology platform, and mounting method (surface mount).

The identified substitute parts are grouped into two categories based on operational compatibility:

Category 1: Direct Electrical Equivalents — Parts with identical or overlapping voltage supply ranges (2.5V ~ 5.5V) and operating temperature ranges (-40°C ~ 125°C), supporting the full operational envelope of the 25LC160B-E/ST.

Category 2: Extended Capability Substitutes — Parts with wider voltage supply ranges (1.8V ~ 5.5V) or higher clock frequencies (20 MHz) that maintain backward compatibility with 25LC160B-E/ST applications while offering enhanced performance or lower voltage operation.

Clock frequency compatibility is determined by the principle that devices rated at higher frequencies (10 MHz, 20 MHz) are functionally compatible in applications designed for 10 MHz operation. Write cycle time remains constant at 5ms across all qualified substitutes.

Parameter Comparison

Engineering Selection Recommendations

25LC160A-E/ST — Microchip Technology direct equivalent with identical electrical specifications and operating range. Recommended for direct replacement in existing designs without modification. Active product status with ROHS3 compliance.

CAV25160YE-GT3 — onsemi substitute with matching voltage supply range (2.5V ~ 5.5V) and extended operating temperature range (-40°C ~ 125°C). Includes AEC-Q100 automotive qualification. Recommended for applications requiring automotive-grade components or enhanced reliability certification. Higher clock frequency (20 MHz) provides performance margin.

AT25160B-XHL-B — Microchip Technology substitute with extended voltage range (1.8V ~ 5.5V) and higher clock frequency (20 MHz). Suitable for low-voltage applications. Operating temperature range limited to -40°C ~ 85°C. MSL rating 3 requires controlled storage conditions.

CAT25160YI-GT3 — onsemi substitute with extended voltage range (1.8V ~ 5.5V) and higher clock frequency (20 MHz). Unlimited MSL rating (1) provides superior moisture handling. Operating temperature range -40°C ~ 85°C. Available in Tape & Reel packaging.

M95160-RDW6TP — STMicroelectronics substitute with extended voltage range (1.8V ~ 5.5V) and matching 10 MHz clock frequency. Highest inventory availability (53400 Pcs). Operating temperature range -40°C ~ 85°C. Available in Cut Tape & Digi-Reel packaging.

S-25C160A0I-T8T1U3 — ABLIC Inc. substitute with lowest clock frequency (5 MHz) and extended voltage range (1.6V ~ 5.5V). Suitable only for applications with clock frequency requirements at or below 5 MHz. Operating temperature range -40°C ~ 85°C.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with a higher clock frequency than the 25LC160B-E/ST?

A: Yes. Parts rated at 20 MHz (AT25160B-XHL-B, CAT25160YI-GT3, CAV25160YE-GT3) are functionally compatible in applications designed for 10 MHz operation. Higher frequency rating indicates the device can operate at or below the specified frequency without performance degradation.

Q: What is the significance of the voltage supply range difference?

A: The 25LC160B-E/ST operates from 2.5V to 5.5V. Substitutes with extended ranges (1.8V ~ 5.5V) support lower voltage applications. Substitutes with matching ranges (2.5V ~ 5.5V) provide direct electrical equivalence. All substitutes support the full 2.5V to 5.5V range of the original part.

Q: Are all substitute parts available in the same 8-TSSOP package?

A: Yes. All identified substitutes use the 8-TSSOP (0.173", 4.40mm Width) surface mount package, ensuring mechanical and electrical pin compatibility. Packaging format (Tube, Tape & Reel, Cut Tape) differs but does not affect component functionality.

Q: What does MSL rating mean for component substitution?

A: Moisture Sensitivity Level (MSL) indicates storage and handling requirements. MSL 1 (Unlimited) requires no special moisture control. MSL 3 (168 Hours) requires controlled storage conditions and baking before reflow soldering. For applications with standard manufacturing processes, MSL 1 rated parts are preferred.

Q: Can I substitute the 25LC160B-E/ST with the S-25C160A0I-T8T1U3?

A: The S-25C160A0I-T8T1U3 operates at 5 MHz clock frequency, which is half the 25LC160B-E/ST specification. This substitute is compatible only if your application does not require clock frequencies above 5 MHz. Verify application timing requirements before selection.

Q: Which substitute offers the best availability?

A: The M95160-RDW6TP from STMicroelectronics has the highest inventory (53400 Pcs) with matching 10 MHz clock frequency and extended voltage range (1.8V ~ 5.5V). Operating temperature range is -40°C ~ 85°C.

Q: Is the CAV25160YE-GT3 suitable for automotive applications?

A: Yes. The CAV25160YE-GT3 carries AEC-Q100 automotive qualification and is designated as automotive grade. It maintains the full operating temperature range (-40°C ~ 125°C) and voltage supply range (2.5V ~ 5.5V) of the original part.