25LC128-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The Microchip 25LC128-I/P is a 128 Kbit SPI-compatible serial EEPROM with a 160 ns access time and a wide supply range from 2.5 V to 5.5 V. It supports up to 10 MHz clock frequency and provides 1,000,000 write/erase cycles with 200-year data retention, housed in a through-hole PDIP-8 package.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 25LC128-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $1.0208(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 128 Kbit (16 KB) SPI serial EEPROM with up to 10 MHz bus clock frequency
- Wide supply voltage range from 2.5 V to 5.5 V for 3.3 V and 5 V systems
- 1,000,000 write/erase cycle endurance with 200-year minimum data retention
- Fast 160 ns read access time enabling low-latency data retrieval in embedded systems
- Pb-free PDIP-8 package ideal for prototyping, development boards, and socketed production designs
Applications
25LC128-I/P is widely used in embedded systems for storing non-volatile configuration data, calibration constants, and firmware parameters where a simple 4-wire SPI interface and 2.5 V to 5.5 V operation are required. It is also common in prototyping environments and educational boards due to its PDIP-8 package, which allows direct breadboard or DIP-socket insertion without soldering.
Specifications
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 32Weeks |
| YTEOL | 8 |
| Clock Frequency-Max (fCLK) | 10MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Memory Density | 131072bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 16384words |
| Number of Words Code | 16000 |
| Operating Mode | SYNCHRONOUS |
| Organization | 16KX8 |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Parallel/Serial | SERIAL |
| Programming Voltage | 5V |
| Qualification Status | Not Qualified |
| Screening Level | AEC-Q100 |
| Serial Bus Type | SPI |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.005mA |
| Supply Voltage-Max (Vsup) | 5.5V |
| Supply Voltage-Min (Vsup) | 2.5V |
| Supply Voltage-Nom (Vsup) | 5V |
| Surface Mount | NO |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | THROUGH-HOLE |
| Terminal Pitch | 2.54mm |
| Terminal Position | DUAL |
| Write Cycle Time-Max (tWC) | 5ms |
| Write Protection | HARDWARE/SOFTWARE |
| Package | Dual-In-Line Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| ECCN | EAR99 |
| HTS Code | 8542.32.00.51 |
| Country of Origin | Thailand |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many write/erase cycles can 25LC128-I/P endure, and what is its data retention specification?
25LC128-I/P is rated for 1,000,000 write/erase cycles with a minimum data retention of 200 years. These endurance and retention figures make it suitable for applications that update configuration data frequently, such as event loggers and calibration systems storing values over the product's full service life.
At what maximum SPI clock frequency does 25LC128-I/P operate, and does this cover most microcontroller SPI peripherals?
25LC128-I/P supports a maximum SPI clock frequency of 10 MHz. Most 8-bit and 32-bit microcontrollers offer SPI peripheral speeds of 1 MHz to 50 MHz, so the 10 MHz limit of this 128 Kbit EEPROM is comfortably achievable and sufficient for sequential configuration reads during boot sequences.
Can 25LC128-I/P be used directly on a 3.3 V system without a level shifter?
Yes. 25LC128-I/P operates across a wide 2.5 V to 5.5 V supply range, so it connects directly to both 3.3 V and 5 V logic rails without requiring a level-shifting circuit. This flexibility simplifies mixed-voltage PCB designs and reduces BOM cost when interfacing with low-voltage microcontrollers.
With a 32-week factory lead time, how should buyers plan procurement of 25LC128-I/P for volume production?
The 32-week factory lead time for 25LC128-I/P requires production planners to place purchase orders at least 8 months ahead of build start. Buyers should negotiate blanket orders or vendor-managed inventory agreements and identify an alternate SPI EEPROM such as the AT25128B to mitigate supply risk during peak demand periods.
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