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Home > Products > Integrated Circuits (ICs) > Memory > Memory

Microchip Technology AT25160-10PC-2.7

Name: AT25160-10PC-2.7
Brand: Microchip Technology
SKU: AT25160-10PC-2.7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: AT25160-10PC-2.7

Manufacturer:: Microchip Technology

Category:: Memory

Package:: 8-DIP (0.300", 7.62mm)

Datasheet:: AT25160-10PC-2.7.pdf

Description:: IC EEPROM 16KBIT SPI 3MHZ 8DIP

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Product details

Overview

AT25160-10PC-2.7 from Atmel is a 16-kbit SPI serial EEPROM organized as 2048 × 8-bit memory, supporting 2.7V–5.5V operation, 3.0 MHz clock rate at 5V, 32-byte page write, and hardware/software write protection via WP pin and status register. It serves in embedded systems requiring nonvolatile data storage with low-voltage compatibility, such as industrial sensor nodes and portable instrumentation.

For engineers reviewing the AT25160-10PC-2.7 datasheet, AT25160-10PC-2.7 pinout, AT25160-10PC-2.7 application, or AT25160-10PC-2.7 equivalent, key selection criteria include VCC range (2.7–5.5 V), tWC max = 10 ms, block write protection granularity (1/4, 1/2, or full array), endurance (1 million cycles), and 8-pin PDIP package compatibility.

Technical Context

The AT25160-10PC-2.7 implements a synchronous SPI slave interface compliant with Modes 0 and 3, using separate SI/SO pins for full-duplex communication and CS/SCK/WP/HOLD control signals. Its internal architecture includes an 8-bit instruction register, nonvolatile status register (BP0/BP1/WPEN/WEN/RDY bits), and automatic address incrementing during sequential reads.

It supports self-timed internal write cycles (typ. 5 ms, max 10 ms), requires WREN before WRITE, and allows HOLD pin to suspend ongoing transfers without resetting the sequence. Block protection is configured via WRSR and enforced at the hardware level when WPEN=1 and WP=low.

Key Specifications

Parameter	Value and Actual Design Meaning
Memory Size	16 Kbit (2048 words × 8 bits) - provides sufficient nonvolatile storage for configuration data, calibration tables, or event logs in space-constrained designs.
Supply Voltage Range	2.7 V to 5.5 V - enables direct interfacing with 3.3 V microcontrollers and backward compatibility with 5 V legacy systems.
Max Clock Frequency	3.0 MHz at VCC = 5.0 V - supports high-speed firmware updates or rapid parameter writes without CPU bottlenecks.
Page Write Size	32 bytes - minimizes write latency per transaction and reduces host-side buffering requirements.
Write Cycle Time	10 ms maximum - defines worst-case delay before next command can be issued; impacts real-time logging responsiveness.
Endurance & Retention	1 million write cycles / 100 years data retention - ensures long-term reliability in field-deployed equipment with frequent parameter updates.
Operating Temperature	0°C to +70°C - validated for commercial-grade applications including consumer electronics and office automation devices.

Pinout & Package

AT25160-10PC-2.7 is housed in an 8-pin PDIP (Plastic Dual Inline Package), 0.300" wide, with standard through-hole mounting and JEDEC MS-001 BA footprint.

Pin/Terminal	Circuit Role	Design Meaning
CS	Chip Select	Active-low enable signal; must be held low during entire SPI transaction to assert device selection and enable SI/SO communication.
SCK	Serial Clock	Input-only clock input synchronized to master controller; determines timing of SI sampling and SO output edges per SPI mode.
SI	Serial Data Input	Master-to-slave data path carrying op-codes, addresses, and write data; sampled on SCK edge per selected SPI mode.
SO	Serial Data Output	Slave-to-master data path delivering read data or status register contents; driven only when CS is low and command permits output.
GND	Ground Reference	Primary return path for VCC and all I/O signals; requires low-impedance connection to system ground plane to minimize noise coupling.
VCC	Power Supply	Single supply input supporting 2.7–5.5 V; powers internal logic, memory array, and I/O buffers; bypass capacitor recommended near pin.
WP	Write Protect	Hardware lock for status register writes; when WP=low and WPEN=1, prevents modification of BP bits and WPEN, ensuring immutable protection settings.
HOLD	Communication Suspend	Pauses active SPI transfer without resetting internal state; requires SCK=low to assert/deassert; useful for interrupt servicing in real-time systems.

Key Features

Feature	Design Value
Block Write Protection	Configurable 1/4, 1/2, or full memory array lock via status register - prevents accidental overwrites of critical firmware or calibration data.
Hardware + Software Write Protection	WP pin and WREN/WRDI instructions provide dual-layer security - allows flexible protection schemes across power cycles and runtime conditions.
Page Write Mode	32-byte burst writes reduce total programming time vs. byte-wise writes - improves efficiency in parameter batch updates or firmware patching.
Low Standby Current	0.5 µA max at 2.7 V - extends battery life in always-on IoT endpoints or portable diagnostic tools.
Industrial-Grade Timing Margins	tWH/tWL ≥ 200 ns at 2.7–5.5 V - ensures robust operation across voltage and temperature variations without external timing compensation.

Applications

Smart Metering Firmware Storage	Medical Device Calibration Data
Use Scenario: Storing tariff tables, metering logs, and firmware update flags in electricity/water meters operating from 3.3 V rails with intermittent power. IC Role / Device Role / Timing Role: Nonvolatile configuration and event history storage; accessed via SPI during boot and periodic housekeeping routines. Use Value: 2.7–5.5 V operation eliminates level-shifting needs; 1M endurance supports >10 years of daily log writes; block protection secures tariff data against corruption.	Use Scenario: Retaining patient-specific calibration coefficients and usage history in handheld ultrasound or glucose monitors powered by coin cells. IC Role / Device Role / Timing Role: Persistent parameter store accessed during device initialization and post-measurement save operations. Use Value: 0.5 µA standby current extends battery life beyond 2 years; 32-byte page writes minimize active time per save; WP pin hardens against ESD-induced writes.
Industrial PLC Configuration Memory	Automotive Body Control Module Settings
Use Scenario: Holding I/O mapping, alarm thresholds, and network addressing in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: Reliable configuration backup memory updated infrequently but requiring guaranteed retention across power loss events. Use Value: 100-year data retention ensures no recalibration after 15+ year deployments; 8-pin PDIP simplifies replacement in legacy PCBs; HOLD pin enables safe context switching during interrupts.	Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in 12 V automotive body control units with 3.3 V domain regulation. IC Role / Device Role / Timing Role: Dedicated NV memory for user preferences, isolated from main MCU flash to avoid wear-out and simplify OTA updates. Use Value: VCC range covers brown-out conditions down to 2.7 V; block protection prevents inadvertent overwrite of factory-set defaults; SO drive strength supports long trace routing in chassis harnesses.

Smart Metering Firmware Storage

Medical Device Calibration Data

Use Scenario: Storing tariff tables, metering logs, and firmware update flags in electricity/water meters operating from 3.3 V rails with intermittent power.

IC Role / Device Role / Timing Role: Nonvolatile configuration and event history storage; accessed via SPI during boot and periodic housekeeping routines.

Use Value: 2.7–5.5 V operation eliminates level-shifting needs; 1M endurance supports >10 years of daily log writes; block protection secures tariff data against corruption.

Use Scenario: Retaining patient-specific calibration coefficients and usage history in handheld ultrasound or glucose monitors powered by coin cells.

IC Role / Device Role / Timing Role: Persistent parameter store accessed during device initialization and post-measurement save operations.

Use Value: 0.5 µA standby current extends battery life beyond 2 years; 32-byte page writes minimize active time per save; WP pin hardens against ESD-induced writes.

Industrial PLC Configuration Memory

Automotive Body Control Module Settings

Use Scenario: Holding I/O mapping, alarm thresholds, and network addressing in DIN-rail mounted programmable logic controllers.

IC Role / Device Role / Timing Role: Reliable configuration backup memory updated infrequently but requiring guaranteed retention across power loss events.

Use Value: 100-year data retention ensures no recalibration after 15+ year deployments; 8-pin PDIP simplifies replacement in legacy PCBs; HOLD pin enables safe context switching during interrupts.

Use Scenario: Storing seat position presets, mirror angles, and lighting profiles in 12 V automotive body control units with 3.3 V domain regulation.

IC Role / Device Role / Timing Role: Dedicated NV memory for user preferences, isolated from main MCU flash to avoid wear-out and simplify OTA updates.

Use Value: VCC range covers brown-out conditions down to 2.7 V; block protection prevents inadvertent overwrite of factory-set defaults; SO drive strength supports long trace routing in chassis harnesses.

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial EEPROM applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
M95160-WMN6TP	STMicroelectronics 16 Kbit SPI EEPROM; same 2.7–5.5 V range, 20 MHz max clock, 5 ms tWC typ, 8-lead SOIC only (no PDIP).	Higher speed but lacks PDIP option; different HOLD pin behavior (active-high vs. AT25160's active-low).	Select when board uses SOIC and requires faster writes; verify HOLD logic compatibility in existing firmware.
25AA160A-I/P	Microchip 16 Kbit SPI EEPROM; 1.8–5.5 V range, 10 MHz max clock, 5 ms tWC typ, available in 8-pin PDIP.	Broadest VCC range (1.8 V min); identical PDIP footprint and pinout; slightly higher ISB (1 µA vs. 0.5 µA).	Preferred for new designs needing 1.8 V support or drop-in replacement where PDIP is mandatory and 0.5 µA standby is not critical.

Compared with M95160-WMN6TP and 25AA160A-I/P, AT25160-10PC-2.7 offers unique commercial-grade 8-pin PDIP packaging with verified 0.5 µA standby current and HOLD/CS timing margins optimized for legacy microcontroller interfaces - making it ideal for cost-sensitive, long-lifecycle industrial replacements.

Availability

AT25160-10PC-2.7 is available at Aetrix Electronics and suitable for smart metering, medical diagnostics, industrial PLCs, and automotive body control modules requiring stable component supply and long-term obsolescence management.

Supply support for AT25160-10PC-2.7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Atmel Corporation (now part of Microchip Technology) is a fabless semiconductor company specializing in microcontrollers, nonvolatile memory, and secure authentication ICs.

The AT25xxx family was designed specifically for reliable, low-power SPI-based nonvolatile storage in resource-constrained embedded systems - emphasizing ease of integration, robust write protection, and extended data retention under variable environmental conditions.

FAQ

What voltage range does the AT25160-10PC-2.7 support?

The AT25160-10PC-2.7 supports a supply voltage range of 2.7 V to 5.5 V, enabling interoperability with both 3.3 V and 5 V microcontroller systems without level shifters. This range is explicitly defined in the ordering code suffix "-2.7" and confirmed in DC Characteristics Table on page 3 of the datasheet. Operation outside this window may cause undefined behavior or data corruption in the AT25160-10PC-2.7.

Does the AT25160-10PC-2.7 require a separate erase cycle before writing?

No, the AT25160-10PC-2.7 does not require a separate erase cycle. All write operations are self-timed and automatically erase and program the target location within the 10 ms maximum write cycle time. The device uses floating-gate technology that integrates erase and write into a single atomic operation, simplifying firmware design and eliminating the need for explicit ERASE commands in the AT25160-10PC-2.7 protocol flow.

How is write protection implemented on the AT25160-10PC-2.7?

Write protection on the AT25160-10PC-2.7 combines hardware and software methods: the WP pin disables status register writes when low and WPEN=1, while the status register's BP0/BP1 bits configure 1/4, 1/2, or full array block protection. Both mechanisms must be correctly configured - WPEN set and WP asserted - to enforce hardware lock. This dual-layer scheme ensures robust data integrity in the AT25160-10PC-2.7 across power cycles and runtime faults.

What package type is used for the AT25160-10PC-2.7?

The AT25160-10PC-2.7 uses an 8-pin PDIP (Plastic Dual Inline Package), 0.300" wide, per JEDEC MS-001 BA standard. This through-hole package is explicitly indicated by the "PC" suffix in the part number and matches the mechanical drawings on page 18 of the datasheet. It provides mechanical robustness and hand-soldering compatibility, distinguishing the AT25160-10PC-2.7 from SOIC or TSSOP variants in the same family.

Can the AT25160-10PC-2.7 be used with SPI Mode 1 or Mode 2?

No, the AT25160-10PC-2.7 only supports SPI Modes 0 (CPOL=0, CPHA=0) and 3 (CPOL=1, CPHA=1), as stated in the Features section on page 1. Attempting to use Mode 1 (CPOL=0, CPHA=1) or Mode 2 (CPOL=1, CPHA=0) will result in incorrect data sampling or clock synchronization failure. Firmware must configure the host SPI peripheral accordingly to ensure reliable communication with the AT25160-10PC-2.7.

AT25160-10PC-2.7 Specifications

Product attributes: Attribute value

Manufacturer:: Microchip Technology

Series:: -

Package/Case:: 8-DIP (0.300", 7.62mm)

Packaging:: Tube

Product Status:: Obsolete

Programmable:: Not Verified

Memory Type:: Non-Volatile

Memory Format:: EEPROM

Technology:: EEPROM

Memory Size:: 16Kbit

Memory Organization:: 2K x 8

Memory Interface:: SPI

Clock Frequency:: 3 MHz

Write Cycle Time - Word, Page:: 5ms

Access Time:: -

Voltage - Supply:: 2.7V ~ 5.5V

Operating Temperature:: 0°C ~ 70°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Through Hole

Supplier Device Package:: 8-PDIP

AT25160-10PC-2.7 FAQ

1.How can I place an order for AT25160-10PC-2.7 through Aetrix?

Please submit a Request for Quotation (RFQ) for AT25160-10PC-2.7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for AT25160-10PC-2.7 reliable?

The price and inventory of AT25160-10PC-2.7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AT25160-10PC-2.7 is usually 5 days.

3.What payment methods are accepted for AT25160-10PC-2.7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25160-10PC-2.7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for AT25160-10PC-2.7?

AT25160-10PC-2.7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your AT25160-10PC-2.7 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for AT25160-10PC-2.7?

For technical support, including AT25160-10PC-2.7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25160-10PC-2.7 requirements.

6.How does Aetrix verify that AT25160-10PC-2.7 is sourced from the original manufacturer or authorized distributors?

All AT25160-10PC-2.7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that AT25160-10PC-2.7 meets industry standards.

7.What is the process for return or replacement of AT25160-10PC-2.7?

All AT25160-10PC-2.7 units undergo pre-shipment inspection (PSI). If there is an issue with AT25160-10PC-2.7, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The AT25160-10PC-2.7 part is unused and in its original packaging.

Return procedure for AT25160-10PC-2.7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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