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Microchip Technology 25LC160DT-E/MNY
- Part No.:
- 25LC160DT-E/MNY
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
25LC160DT-E/MNY.pdf
- Description:
- IC EEPROM 16KBIT SPI 10MHZ 8TDFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,341
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Product details
Overview
25LC160DT-E/MNY from Microchip Technology Inc. is a 16 Kbit SPI Serial EEPROM with 2048 × 8-bit organization, 32-byte page size, and automotive-grade temperature range (–40°C to +125°C). It operates from 2.5V to 5.5V, supports up to 10 MHz clock frequency, and delivers 5 mA read/write current at 5.5V - used for nonvolatile parameter storage in engine control units, battery management systems, and industrial sensor nodes.
For engineers reviewing the 25LC160DT-E/MNY datasheet, 25LC160DT-E/MNY pinout, 25LC160DT-E/MNY application, or 25LC160DT-E/MNY equivalent, key selection criteria include its automotive temperature rating, hardware write-protection via WP pin and STATUS register, HOLD functionality for interrupt-safe SPI pauses, and 1M endurance cycles with >200-year data retention.
Technical Context
The 25LC160DT-E/MNY implements a standard SPI Mode 0,0 interface with separate SI (data-in) and SO (data-out) lines, requiring CS, SCK, and HOLD control signals. Its internal architecture includes an 8-bit instruction register, page latches, and high-voltage generator for EEPROM programming.
Write operations require explicit WREN instruction followed by CS high-to-low transition to initiate self-timed internal write cycle (≤5 ms), while STATUS register (WIP, WEL, BP0/BP1, WPEN) enables real-time monitoring and configurable block protection of upper 1/4, 1/2, or full memory array.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8-bit) - sufficient for firmware configuration, calibration tables, and runtime logs in compact embedded systems. |
| Page Size | 32 bytes - enables efficient bulk writes within single physical page boundaries without wraparound corruption. |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V - supports high-speed SPI communication in real-time automotive subsystems. |
| Endurance | 1 million erase/write cycles - ensures long-term reliability in applications with frequent parameter updates. |
| Data Retention | 200+ years at +25°C - guarantees persistent storage integrity over product lifetime without refresh. |
| Supply Voltage | 2.5V to 5.5V - compatible with 3.3V and 5V microcontroller I/O domains without level shifting. |
| Temp Range | –40°C to +125°C (Automotive E-grade) - qualified for under-hood and powertrain environments. |
Pinout & Package
25LC160DT-E/MNY is housed in an 8-lead 2×3 mm TDFN package (MN suffix), RoHS-compliant and Pb-free, with wettable flank leads for automated optical inspection (AOI).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS (Pin 1) | Chip Select Input | Active-low enable signal; must go high after final data bit to trigger internal write cycle - critical for deterministic timing in safety-critical firmware updates. |
| SO (Pin 2) | Serial Data Output | Tri-state output updated on SCK falling edge; enters high-Z when CS high or HOLD low - enables multi-device SPI bus sharing. |
| WP (Pin 3) | Hardware Write-Protect | Combined with WPEN bit in STATUS register; low + WPEN=1 disables STATUS register writes - prevents accidental lockout of configuration memory. |
| VSS (Pin 4) | Ground Reference | Primary return path for all I/O and core logic; requires low-impedance connection to minimize noise coupling during write cycles. |
| SI (Pin 5) | Serial Data Input | Latches instruction, address, and data on SCK rising edge; accepts MSB-first SPI frames per Microchip's documented protocol. |
| SCK (Pin 6) | Serial Clock Input | Synchronizes all SPI transactions; rise/fall times ≤2 µs required for reliable operation at 10 MHz. |
| HOLD (Pin 7) | Transaction Pause Control | Low assertion suspends ongoing SPI sequence without reset; resumes from exact byte position - essential for servicing MCU interrupts during EEPROM access. |
| VCC (Pin 8) | Power Supply | Supplies core logic and charge pump; bypass capacitor (0.1 µF) recommended near pin to stabilize internal HV generation during writes. |
Key Features
| Feature | Design Value |
|---|---|
| Block Write Protection | Configurable via BP0/BP1 bits to protect none, upper 1/4 (0600h–07FFh), upper 1/2 (0400h–07FFh), or full array - enables secure boot loader partitioning. |
| Power-On Write Disable | Write enable latch resets at power-up, preventing spurious writes during supply ramp - eliminates need for external POR circuitry. |
| HOLD Functionality | Pauses serial communication mid-transaction with no re-synchronization overhead - reduces CPU intervention in time-constrained real-time tasks. |
| ESD Robustness | 4 kV HBM rating on all pins - meets automotive component-level ESD requirements without additional protection devices. |
| Low Standby Current | 1 µA at +85°C (5.5V) - minimizes quiescent power draw in always-on vehicle modules like telematics gateways. |
Applications
| Engine Control Unit (ECU) | Industrial PLC I/O Module |
|---|---|
Use Scenario: Storing fuel map coefficients, fault codes, and adaptive learning parameters subject to frequent updates during vehicle operation. IC Role / Device Role / Timing Role: Nonvolatile configuration memory interfaced directly to PIC® MCU SPI port with HOLD support for interrupt latency tolerance. Use Value: Automotive temperature rating and 1M endurance ensure reliable operation across 15+ year vehicle lifetimes with daily recalibration cycles. | Use Scenario: Retaining module identification, calibration offsets, and operational history in DIN-rail mounted programmable logic controllers. IC Role / Device Role / Timing Role: SPI EEPROM providing deterministic 5 ms max write latency and hardware write-protection against firmware corruption during brownout events. Use Value: Block protection (BP0/BP1) isolates factory-calibrated data from field-updatable user parameters - reducing validation scope for certified industrial equipment. |
| Battery Management System (BMS) | Medical Infusion Pump |
Use Scenario: Logging cell voltage histories, thermal profiles, and cycle counts in lithium-ion battery packs for EVs and energy storage. IC Role / Device Role / Timing Role: High-reliability data logger with >200-year retention and 4 kV ESD immunity for harsh electrical environments near high-current switching circuits. Use Value: 2.5V–5.5V supply range matches BMS analog front-end rail voltages, eliminating level shifters and reducing BOM count. | Use Scenario: Securing drug library definitions, dosage limits, and usage audit trails in Class II medical devices requiring traceable firmware updates. IC Role / Device Role / Timing Role: Cryptographically signed configuration store where WP pin + WPEN bit enforces immutable safety-critical parameters post-certification. Use Value: Hardware-enforced write protection prevents unauthorized modification of dose calculation algorithms - supporting FDA 21 CFR Part 11 compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar serial EEPROM applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| 25LC160DT-I/MNY | Same 16 Kbit capacity and 32-byte page, but rated for Industrial (–40°C to +85°C) not Automotive (–40°C to +125°C) temperature range. | Not qualified for under-hood or powertrain use; suitable for indoor industrial controls or consumer electronics. | Select only if ambient operating temperature remains below +85°C and automotive qualification is unnecessary. |
| AT25DF021-MAHN-T | 2 Mbit density, 256-byte page, quad SPI interface, and 85 MHz max clock - significantly higher bandwidth but different command set and pinout. | Requires firmware rewrite for SPI command compatibility; not drop-in replaceable due to differing instruction opcodes and status register layout. | Consider only when migrating to higher-density flash-based storage with faster throughput and no need for EEPROM-style byte-write granularity. |
Compared with 25LC160DT-I/MNY, the 25LC160DT-E/MNY adds extended temperature qualification essential for automotive deployment, while AT25DF021-MAHN-T offers greater density and speed at the cost of software and hardware redesign - making 25LC160DT-E/MNY optimal for cost-sensitive, drop-in EEPROM upgrades in existing automotive designs.
Availability
25LC160DT-E/MNY is available at Aetrix Electronics and suitable for engine control units, battery management systems, and industrial PLC I/O modules requiring stable component supply across extended product lifecycles.
Supply support for 25LC160DT-E/MNY 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
Microchip Technology Inc. is a leading provider of microcontrollers, analog components, and memory solutions, headquartered in Chandler, Arizona, with global design and manufacturing operations.
The 25LC160 series belongs to Microchip's automotive-qualified serial EEPROM product line, designed specifically for robust nonvolatile data storage in safety-critical and thermally demanding environments such as powertrain, chassis, and body electronics.
FAQ
What is the maximum clock frequency supported by the 25LC160DT-E/MNY?
The 25LC160DT-E/MNY supports up to 10 MHz SPI clock frequency when VCC is 4.5V–5.5V, 5 MHz at 2.5V–4.5V, and 3 MHz at 1.8V–2.5V. Its AC characteristics are fully specified across the automotive temperature range (–40°C to +125°C), ensuring timing compliance in extreme conditions. The 25LC160DT-E/MNY uses standard SPI Mode 0,0 with setup/hold timing validated per Table 1-2 of DS22150B.
Does the 25LC160DT-E/MNY support hardware write protection?
Yes, the 25LC160DT-E/MNY supports dual-layer hardware write protection: the WP pin (Pin 3) combined with the WPEN bit in the STATUS register. When WP is low and WPEN = 1, writes to nonvolatile STATUS register bits are disabled - preserving critical protection settings. This feature is explicitly documented in Table 2-4 and Section 2.6 of DS22150B. The 25LC160DT-E/MNY implements this function without external components.
What package type does the 25LC160DT-E/MNY use?
The 25LC160DT-E/MNY uses an 8-lead 2×3 mm TDFN package (suffix "MN"), as confirmed by Microchip's packaging table on DS22150B-page 14 and marking code "C65" for E-temp devices. This package features wettable flanks for automated optical inspection and complies with RoHS and Pb-free requirements. Pinout matches standard 8-lead SOIC but with reduced footprint and improved thermal performance.
How many write/erase cycles does the 25LC160DT-E/MNY guarantee?
The 25LC160DT-E/MNY guarantees a minimum of 1 million erase/write cycles, as specified in Table 1-3 (Param. No. 21) of DS22150B. This endurance rating is characterized at 25°C and VCC = 5.5V, and applies across the full automotive temperature range. Endurance is ensured via Microchip's Total Endurance™ Model, accessible at microchip.com, for application-specific lifetime estimation.
Can the 25LC160DT-E/MNY be used with 3.3V microcontrollers?
Yes, the 25LC160DT-E/MNY operates from 2.5V to 5.5V, making it fully compatible with 3.3V microcontrollers without level shifting. Its DC characteristics - including VIH1 (0.7×VCC), VOL1 (≤0.4V at 2.1mA), and VOH (VCC–0.5V) - are guaranteed across the entire voltage and temperature range. The 25LC160DT-E/MNY has been validated for interoperability with PIC® and other SPI-capable MCUs at 3.3V supply.
25LC160DT-E/MNY Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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:
- 10 MHz
- Write Cycle Time - Word, Page:
- 5ms
- Access Time:
- -
- Voltage - Supply:
- 2.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-TDFN (2x3)
25LC160DT-E/MNY FAQ
1.How can I place an order for 25LC160DT-E/MNY through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC160DT-E/MNY 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 25LC160DT-E/MNY reliable?
The price and inventory of 25LC160DT-E/MNY are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for 25LC160DT-E/MNY is usually 5 days.
3.What payment methods are accepted for 25LC160DT-E/MNY?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC160DT-E/MNY transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC160DT-E/MNY?
25LC160DT-E/MNY orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC160DT-E/MNY 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 25LC160DT-E/MNY?
For technical support, including 25LC160DT-E/MNY datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC160DT-E/MNY requirements.
6.How does Aetrix verify that 25LC160DT-E/MNY is sourced from the original manufacturer or authorized distributors?
All 25LC160DT-E/MNY 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 25LC160DT-E/MNY meets industry standards.
7.What is the process for return or replacement of 25LC160DT-E/MNY?
All 25LC160DT-E/MNY units undergo pre-shipment inspection (PSI). If there is an issue with 25LC160DT-E/MNY, 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 25LC160DT-E/MNY part is unused and in its original packaging.
Return procedure for 25LC160DT-E/MNY:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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