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Microchip Technology 25LC160DT-E/MS
- Part No.:
- 25LC160DT-E/MS
- Manufacturer:
- Microchip Technology
- Category:
- Memory
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
25LC160DT-E/MS.pdf
- Description:
- IC EEPROM 16KBIT SPI 10MHZ 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,017
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Product details
Overview
25LC160DT-E/MS from Microchip Technology is a 16 Kbit (2048 × 8) SPI Serial EEPROM with 32-byte page write capability, 10 MHz max clock frequency, and industrial-automotive temperature range (–40°C to +125°C). It features hardware write protection via WP pin and STATUS register, self-timed 5 ms write cycles, and operates from 2.5V to 5.5V - used for firmware parameter storage in automotive control modules.
For engineers reviewing the 25LC160DT-E/MS datasheet, 25LC160DT-E/MS pinout, 25LC160DT-E/MS application, or 25LC160DT-E/MS equivalent, this page delivers verified electrical specs, SPI timing constraints across voltage/temperature grades, package-specific pin mapping for MSOP-8, endurance/reliability data (>1M cycles, >200 years retention), and real-world substitution guidance.
Technical Context
The 25LC160DT-E/MS implements a standard SPI Mode 0,0 (CPOL = 0, CPHA = 0) interface with separate SI/SO lines and active-low CS. Its internal architecture includes an 8-bit instruction register, page latches, HV generator for EEPROM programming, and a STATUS register with WIP, WEL, BP0/BP1, and WPEN bits.
Write operations require explicit WREN instruction followed by CS high-to-low transition to initiate internal 5 ms erase/write cycle; page writes are limited to 32 bytes within a single physical page boundary (0000h–001Fh, 0020h–003Fh, etc.). HOLD pin suspends ongoing SPI transfers without resetting address pointer or requiring retransmission.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Memory Size | 16 Kbit (2048 × 8-bit organization), sufficient for bootloader configuration, calibration tables, or device identity storage |
| Page Size | 32 bytes - enables efficient bulk writes without crossing page boundaries; requires software alignment |
| Max Clock Frequency | 10 MHz at VCC ≥ 4.5V - supports high-speed SPI communication in microcontroller-based systems |
| Write Cycle Time | 5 ms max - defines minimum interval between write commands; impacts firmware update latency |
| Endurance | >1 million erase/write cycles - validated at 25°C/5.5V; critical for logging or counter applications |
| Data Retention | >200 years - ensures long-term reliability in unpowered automotive ECUs or industrial sensors |
| VCC Range | 2.5V to 5.5V - compatible with 3.3V and 5V logic domains without level shifting |
Pinout & Package
25LC160DT-E/MS is housed in an 8-lead MSOP (Mini Small Outline Package), 3.0 mm × 3.0 mm body, 0.65 mm pitch, RoHS-compliant, Pb-free matte tin finish. Pin 1 marked with dot or beveled corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CS | Chip Select Input | Active-low enable; must go high after final data bit to trigger internal write cycle; deselects device into standby mode |
| 2 - SO | Serial Data Output | Tri-state output; data valid after falling edge of SCK; high-impedance when CS high or HOLD low |
| 3 - WP | Hardware Write-Protect Input | Low + WPEN bit set disables STATUS register writes only; does not block memory reads or byte/page writes |
| 4 - VSS | Ground Reference | System ground return path; must be low-impedance connection to minimize noise coupling during write cycles |
| 5 - SI | Serial Data Input | Latches instruction/address/data on rising edge of SCK; accepts 00000010 (WRITE), 00000011 (READ), etc. |
| 6 - SCK | Serial Clock Input | Synchronizes all SPI transfers; max 10 MHz; timing parameters (Tsu, THD, TCSS, TCSH) vary with VCC |
| 7 - HOLD | Serial Transfer Suspend Input | Low while SCK is low pauses ongoing SPI sequence; resumes from same point when raised; tri-states SO |
| 8 - VCC | Supply Voltage | 2.5V–5.5V operation; ICC read = 5 mA @ 5.5V/10 MHz; ICCS standby = 5 µA @ 5.5V/+125°C |
Key Features
| Feature | Design Value |
|---|---|
| Block Write Protection | Selectively protects 0%, 25%, 50%, or 100% of memory array via BP0/BP1 bits - prevents accidental overwrites in safety-critical zones |
| Power-On Write Disable | WEL latch resets at power-up; requires explicit WREN before any write - eliminates spurious writes during brown-out |
| Hold Function | HOLD pin suspends SPI transfer mid-sequence without address pointer reset - enables interrupt servicing in real-time systems |
| ESD Robustness | 4 kV HBM ESD rating on all pins - meets automotive module requirements for handling and board-level reliability |
| Temperature Range | –40°C to +125°C (Automotive E-grade) - qualified for under-hood engine control units and transmission controllers |
Applications
| Automotive Engine Control Unit | Industrial PLC Configuration Storage |
|---|---|
Use Scenario: Storing adaptive fuel trim values, fault codes, and sensor calibration offsets in an ECU that powers on/off frequently. IC Role / Device Role / Timing Role: Nonvolatile parameter store interfaced directly to PIC MCU's SPI port; accessed during boot and runtime diagnostics. Use Value: >200-year data retention ensures calibration survives vehicle lifetime; 1M-cycle endurance supports daily recalibration. |
Use Scenario: Holding user-defined I/O mapping, ladder logic parameters, and firmware version flags in modular PLC backplanes. IC Role / Device Role / Timing Role: SPI-configurable EEPROM co-located with ARM Cortex-M7 host; updated via maintenance interface during commissioning. Use Value: Hardware WP pin prevents field updates during operation; 32-byte page writes reduce update time vs. byte-by-byte. |
| Medical Infusion Pump Settings | Smart Energy Meter Firmware Patch Storage |
Use Scenario: Securing drug library limits, alarm thresholds, and operator access levels in battery-backed infusion devices. IC Role / Device Role / Timing Role: Tamper-resistant configuration vault; WPEN+WP combination locks STATUS register against unauthorized changes. Use Value: Block protection (BP1/BP0) isolates safety-critical registers; 5 µA standby current extends battery life. |
Use Scenario: Storing delta patches for meter firmware upgrades received over RF mesh networks in utility deployments. IC Role / Device Role / Timing Role: High-reliability patch buffer; accessed sequentially during OTA update verification phase. Use Value: 10 MHz SPI speed enables fast patch loading; >1M endurance accommodates frequent field updates over 15+ year service life. |
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/MS | Same 16 Kbit, 32-byte page, MSOP-8 package, but rated for Industrial (–40°C to +85°C) only - no automotive qualification | Not suitable for under-hood or transmission control; acceptable for indoor industrial panels or consumer gateways | Select only if ambient operating temperature stays ≤ +85°C and AEC-Q100 compliance is not required |
| AT25DF021-SSH-T | 2 Mbit density, 256-byte pages, quad SPI support, 85 MHz max clock - significantly higher performance and capacity | Requires different command set (JEDEC JESD216); not pin-compatible; needs quad-capable MCU interface | Choose when >16 Kbit capacity or faster read throughput is needed; avoid if legacy SPI-only design or space-constrained layout exists |
Compared with 25LC160DT-E/MS, the 25LC160DT-I/MS offers identical functionality at lower cost but lacks automotive temperature validation, while AT25DF021-SSH-T provides greater density and speed at the expense of command compatibility and PCB redesign effort.
Availability
25LC160DT-E/MS is available at Aetrix Electronics and suitable for automotive control units, industrial programmable logic controllers, medical infusion pumps, and smart energy meters requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for 25LC160DT-E/MS 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 manufacturing and support infrastructure.
The 25LC160 series belongs to Microchip's legacy SPI EEPROM product line, designed specifically for reliable, low-power nonvolatile storage in automotive, industrial, and medical systems where deterministic timing and long-term data integrity are mandatory.
FAQ
What is the maximum clock frequency supported by the 25LC160DT-E/MS?
The 25LC160DT-E/MS supports up to 10 MHz SPI clock frequency when VCC is 4.5V–5.5V. At 2.5V–4.5V, max clock drops to 5 MHz, and at 1.8V–2.5V (not applicable here), it would be 3 MHz. This graded specification ensures timing margin across its 2.5V–5.5V operating range and automotive temperature extremes.
Does the 25LC160DT-E/MS support page write operations, and what is the page size?
Yes, the 25LC160DT-E/MS supports page write operations with a fixed 32-byte page size - consistent with its 'D' suffix designation. Each page spans contiguous addresses (e.g., 0000h–001Fh), and attempting to cross a page boundary wraps data to the start of the same page rather than advancing to the next.
How does hardware write protection work on the 25LC160DT-E/MS?
Hardware write protection on the 25LC160DT-E/MS requires both the WP pin held low *and* the WPEN bit (bit 7 of STATUS register) set high. When enabled, it blocks writes to nonvolatile STATUS register bits only - memory array reads, writes, and byte/page operations remain fully functional.
What is the endurance and data retention specification for the 25LC160DT-E/MS?
The 25LC160DT-E/MS is specified for >1 million erase/write cycles at 25°C and 5.5V, and >200 years of data retention under the same conditions. These values are characterized and ensured per Microchip's Total Endurance™ model, making it suitable for applications requiring decades of unattended operation.
Is the 25LC160DT-E/MS pin-compatible with other packages in the 25XX160 family?
Yes - the 25LC160DT-E/MS shares identical pinout and function mapping with all 8-pin variants (PDIP, SOIC, TSSOP, TDFN) in the 25XX160 family. The 'MS' suffix denotes MSOP-8 packaging, and pin 1 (CS) to pin 8 (VCC) assignments match exactly across these packages per Microchip DS22150B.
25LC160DT-E/MS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- 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-MSOP
25LC160DT-E/MS FAQ
1.How can I place an order for 25LC160DT-E/MS through Aetrix?
Please submit a Request for Quotation (RFQ) for 25LC160DT-E/MS 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/MS reliable?
The price and inventory of 25LC160DT-E/MS 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/MS is usually 5 days.
3.What payment methods are accepted for 25LC160DT-E/MS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 25LC160DT-E/MS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 25LC160DT-E/MS?
25LC160DT-E/MS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 25LC160DT-E/MS 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/MS?
For technical support, including 25LC160DT-E/MS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 25LC160DT-E/MS requirements.
6.How does Aetrix verify that 25LC160DT-E/MS is sourced from the original manufacturer or authorized distributors?
All 25LC160DT-E/MS 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/MS meets industry standards.
7.What is the process for return or replacement of 25LC160DT-E/MS?
All 25LC160DT-E/MS units undergo pre-shipment inspection (PSI). If there is an issue with 25LC160DT-E/MS, 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/MS part is unused and in its original packaging.
Return procedure for 25LC160DT-E/MS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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