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Microchip Technology AT25160-10PC
- Part No.:
- AT25160-10PC
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-DIP (0.300", 7.62mm)
- Datasheet:
-
AT25160-10PC.pdf
- Description:
- IC EEPROM 16KBIT SPI 3MHZ 8DIP
- Quantity:
- Payment:
- Shipping:
Inventory:1,199
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Product details
Overview
AT25160-10PC from Atmel is a 16-kbit (2048 × 8) SPI serial EEPROM with 2.7V–5.5V operation, 32-byte page write capability, 5 ms typical self-timed write cycle, and hardware/software write protection via WP pin and status register. It operates in SPI modes 0 and 3 and is used for nonvolatile parameter storage in microcontroller-based industrial control modules.
For engineers reviewing the AT25160-10PC datasheet, AT25160-10PC pinout, AT25160-10PC application, or AT25160-10PC equivalent, key selection criteria include voltage range compatibility (2.7–5.5 V), 32-byte page write efficiency, block write protection granularity (1/4, 1/2, or full array), and PDIP-8 package suitability for through-hole prototyping and legacy industrial PCBs.
Technical Context
The AT25160-10PC implements a synchronous slave SPI interface with dedicated SI (input) and SO (output) pins, supporting MSB-first data transfer and op-code–driven command execution (e.g., WREN, WRITE, RDSR). It requires explicit Write Enable before programming and returns to write-disable state post-write cycle.
Its internal architecture includes a nonvolatile status register with BP0/BP1 bits controlling 1/4-, 1/2-, or full-array block protection, and a WPEN bit enabling/disabling hardware write protection via the WP pin. The HOLD pin suspends ongoing serial communication without resetting the sequence, preserving address continuity during multi-byte reads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 kbit (2048 words × 8 bits); sufficient for storing calibration tables, device IDs, or configuration registers in embedded systems. |
| Supply Voltage Range | 2.7 V to 5.5 V; supports dual-rail designs and brown-out resilience across 3.3 V and 5 V microcontroller platforms. |
| Max Clock Frequency | 3.0 MHz at 5 V; enables fast read/write throughput (up to ~384 kB/s theoretical burst read) without requiring high-speed MCU peripherals. |
| Write Cycle Time | 5 ms typical; deterministic timing allows precise software timeout handling and eliminates need for polling-intensive wait loops. |
| Endurance & Retention | 1 million write cycles / 100 years data retention; meets long-life requirements for field-deployed instrumentation and automotive body-control modules. |
| Page Write Size | 32 bytes per page; reduces transaction overhead versus byte-write mode and improves firmware update efficiency for contiguous data blocks. |
| Operating Temperature | 0°C to +70°C (Commercial grade); validated for use in office equipment, consumer appliances, and non-automotive industrial enclosures. |
Pinout & Package
AT25160-10PC is supplied in an 8-pin PDIP (Plastic Dual Inline Package), 0.300" wide, with standard through-hole mounting footprint and JEDEC MS-001 BA compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low enable signal; must be low to accept commands; high impedance on SO when CS is high. |
| SCK | Serial Clock | Input-only clock; defines timing for SI sampling and SO output; supports SPI modes 0 and 3 only. |
| SI | Serial Data Input | Command/address/data input path; MSB-first; ignored unless CS is low and device is write-enabled. |
| SO | Serial Data Output | Read data output; high-impedance when CS is high or during HOLD assertion; no bus contention risk. |
| GND | Ground Reference | Primary return path for VCC and all I/O; requires low-impedance connection to minimize noise coupling into SPI lines. |
| VCC | Power Supply | Single supply input (2.7–5.5 V); powers internal logic and memory array; decoupling capacitor required near pin. |
| WP | Write Protect | Hardware lock for status register writes when WPEN = 1; prevents accidental reconfiguration of protection settings. |
| HOLD | Communication Suspend | Pauses ongoing read/write sequence without resetting address counter; enables time-critical MCU interrupt servicing. |
Key Features
| Feature | Design Value |
|---|---|
| SPI Mode 0 & 3 Support | Interoperates with common MCUs (e.g., AVR, PIC, STM32) without custom clock polarity/inversion logic. |
| Block Write Protection | Configurable 1/4, 1/2, or full memory array lock via status register-prevents corruption of critical firmware parameters. |
| 32-byte Page Write | Reduces total write time by >90% vs. byte-write for 32-byte data sets; minimizes MCU active time during EEPROM programming. |
| Self-timed Write Cycle | Eliminates external timing circuitry; internal timer ensures reliable write completion regardless of VCC or temperature variation. |
| HOLD Pin Functionality | Preserves serial state during MCU interrupts-avoids re-synchronization overhead and maintains read continuity across large buffers. |
Applications
| Industrial Sensor Calibration Storage | Consumer Appliance Configuration Memory |
|---|---|
|
Use Scenario: Storing factory-calibrated sensor offset/gain coefficients and temperature compensation tables in pressure or humidity transmitters. IC Role / Device Role / Timing Role: Nonvolatile parameter repository accessed during power-up initialization and periodic self-test routines. Use Value: Enables field-replaceable sensor modules without recalibration; 1M endurance supports lifetime recalibration cycles in service environments. |
Use Scenario: Retaining user preferences (e.g., cooking time, temperature setpoints, language) across power cycles in microwave ovens or washing machines. IC Role / Device Role / Timing Role: Persistent configuration store interfaced directly to 8-bit MCU SPI peripheral during boot and menu navigation. Use Value: 2.7–5.5 V operation matches appliance mainboard rail; PDIP-8 simplifies manual rework and repair in high-volume manufacturing. |
| Medical Device Usage Log | POS Terminal Transaction History |
|
Use Scenario: Recording timestamped usage events (e.g., sterilization cycles, battery swaps) in portable diagnostic equipment. IC Role / Device Role / Timing Role: Sequential write buffer with atomic page writes ensuring log integrity during unexpected power loss. Use Value: 5 ms write time enables rapid logging without blocking real-time diagnostics; 100-year retention guarantees audit trail validity. |
Use Scenario: Caching last N completed transactions locally before upload to central server in retail point-of-sale terminals. IC Role / Device Role / Timing Role: Local backup memory accessed via SPI during network outage or server downtime. Use Value: Block protection prevents accidental overwrite of committed transactions; 32-byte pages align with standard TLV record structures. |
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 | Same 16 kbit size, SPI interface, and 2.7–5.5 V range; but uses WSON-8 package (2 × 3 mm) instead of PDIP-8. | Requires PCB redesign for surface-mount assembly; lacks through-hole option for prototyping or repair. | Select if board space is constrained and SMT manufacturing is established; verify HOLD/WP pin mapping alignment. |
| 25AA160A-I/P | 16 kbit SPI EEPROM with identical PDIP-8 package and 2.5–5.5 V range; supports 10 MHz max clock (vs. 3 MHz). | Higher speed enables faster firmware updates; same pinout allows drop-in replacement where timing margins permit. | Prefer for new designs needing faster read throughput; confirm system-level timing compliance with tWH/tWL specs. |
Compared with M95160-WMN6TP and 25AA160A-I/P, AT25160-10PC offers proven through-hole manufacturability and deterministic 5 ms write timing-critical for cost-sensitive industrial controls where layout flexibility and predictable firmware latency outweigh raw speed gains.
Availability
AT25160-10PC is available at Aetrix Electronics and suitable for industrial sensor calibration storage, consumer appliance configuration memory, and medical device usage log applications requiring stable component supply and long-term obsolescence management.
Supply support for AT25160-10PC 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 semiconductor manufacturer specializing in microcontrollers, nonvolatile memory, and secure authentication ICs.
The AT25xxx family was designed for robust, low-power serial EEPROM applications in cost-sensitive embedded systems-emphasizing SPI interoperability, flexible voltage operation, and field-proven reliability in commercial-grade environments.
FAQ
What is the maximum clock frequency supported by the AT25160-10PC?
The AT25160-10PC supports up to 3.0 MHz at VCC = 5.0 V, 2.1 MHz at VCC = 2.7–5.5 V, and 0.5 MHz at VCC = 1.8–3.6 V. For the AT25160-10PC specifically (rated for 2.7–5.5 V), the guaranteed maximum is 2.1 MHz under worst-case conditions, though 3.0 MHz is achievable at nominal 5 V operation per datasheet AC characteristics.
Does the AT25160-10PC require an external pull-up resistor on the SO pin?
No, the AT25160-10PC features an actively driven SO pin with push-pull output structure. External pull-ups are unnecessary and may cause bus contention or increased power draw. The SO pin enters high-impedance state automatically when CS is high or HOLD is asserted.
How does the write protection mechanism work on the AT25160-10PC?
The AT25160-10PC implements dual-layer write protection: software-controlled via BP0/BP1 bits in the status register (enabling 1/4, 1/2, or full array lock), and hardware-enforced via the WP pin when WPEN = 1. Both mechanisms must be satisfied for writes to unprotected regions; status register writes are blocked entirely if WP = low and WPEN = 1.
Can the AT25160-10PC be used with a 3.3 V microcontroller SPI interface?
Yes-the AT25160-10PC is explicitly rated for 2.7–5.5 V operation, making it fully compatible with 3.3 V logic levels. Its VIH threshold is VCC × 0.7 (min), so at 3.3 V it accepts ≥2.31 V as high; VOH is VCC − 0.8 V (min), delivering ≥2.5 V-ensuring reliable interfacing with standard 3.3 V MCUs.
What is the purpose of the HOLD pin on the AT25160-10PC?
The HOLD pin on the AT25160-10PC suspends ongoing SPI communication (read or write) without resetting the internal address counter or command state. When asserted low while SCK is low, it pauses data transfer; releasing HOLD resumes exactly where it left off-enabling MCU interrupt handling without losing read/write context in the AT25160-10PC.
AT25160-10PC 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:
- 4.5V ~ 5.5V
- Operating Temperature:
- 0°C ~ 70°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Through Hole
- Supplier Device Package:
- 8-PDIP
AT25160-10PC FAQ
1.How can I place an order for AT25160-10PC through Aetrix?
Please submit a Request for Quotation (RFQ) for AT25160-10PC 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 reliable?
The price and inventory of AT25160-10PC 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 is usually 5 days.
3.What payment methods are accepted for AT25160-10PC?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AT25160-10PC transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AT25160-10PC?
AT25160-10PC orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AT25160-10PC 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?
For technical support, including AT25160-10PC datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AT25160-10PC requirements.
6.How does Aetrix verify that AT25160-10PC is sourced from the original manufacturer or authorized distributors?
All AT25160-10PC 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 meets industry standards.
7.What is the process for return or replacement of AT25160-10PC?
All AT25160-10PC units undergo pre-shipment inspection (PSI). If there is an issue with AT25160-10PC, 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 part is unused and in its original packaging.
Return procedure for AT25160-10PC:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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