Specifications
| Type | Description |
|---|---|
| Part Number | 24LC512 |
| Manufacturer | Microchip |
| Product Type | Serial EEPROM |
| Category | Memory & Storage |
| Package / Case | 8-lead PDIP, SOIJ, SOIC, TSSOP, DFN; 14-lead TSSOP |
| Memory Density | 512 Kbit; condition: 64K x 8 organization |
| Supply Voltage Range | 2.5–5.5 V; condition: 24LC512 device |
| Maximum Clock Frequency | 400 kHz; condition: 24LC512 device |
| Temperature Range | -40 to +85 °C; -40 to +125 °C; condition: Industrial (I); Automotive (E), 24LC512 |
| Serial Interface | 2-wire I2C compatible; condition: Bidirectional serial bus |
| Page Write Buffer | 128 bytes; condition: Page write capability |
| Page Write Time | 5 ms max; condition: Self-timed erase/write cycle |
| Cascadable Devices | Up to 8 devices; condition: Using A0, A1, A2 address pins on same bus |
| Erase/Write Endurance | >1,000,000 cycles; condition: Feature summary |
| Data Retention | >200 years; condition: Feature summary |
| Typical Active Current | 400 uA; condition: Low-power CMOS technology feature |
| Typical Standby Current | 100 nA; condition: Low-power CMOS technology feature |
| ESD Protection | >4000 V; condition: Feature summary |
| SDA Pin Type | Open-drain bidirectional; condition: Requires pull-up resistor to VCC |
| Write Protect Function | Writes enabled at VSS; writes inhibited at VCC; condition: WP pin tied to VSS or VCC |
| Datasheet Status | request_only |
Product Overview
The 24LC512 is a Microchip 512 Kbit serial EEPROM for Memory & Storage designs. Its memory array is organized as 64K x 8 and accessed through a 2-wire I2C-compatible bidirectional serial bus. The device operates across a 2.5 V to 5.5 V supply range and supports 400 kHz maximum clock operation for the 24LC512 device conditions.
For write operations, the device provides a 128-byte page write buffer and a self-timed erase/write cycle with 5 ms maximum page or byte write cycle time. Endurance is specified at more than 1,000,000 erase/write cycles, with data retention greater than 200 years. The SDA pin is open-drain bidirectional and requires a pull-up resistor to VCC, with typical values of 10 kOhm for 100 kHz and 2 kOhm for 400 kHz and 1 MHz.
Assembly options include 8-lead PDIP, SOIJ, SOIC, TSSOP, DFN, and 14-lead TSSOP packages. Address pins A0, A1, and A2 allow up to eight devices on the same bus, supporting up to 4 Mbit total address space for expanded nonvolatile storage.
Key Features
- 512 Kbit EEPROM organized as 64K x 8
- 2-wire I2C-compatible bidirectional serial interface
- 2.5 V to 5.5 V supply range
- 400 kHz maximum clock frequency for 24LC512
- 128-byte page write buffer
- 5 ms maximum byte or page write cycle
- Up to eight devices on one I2C bus
- Open-drain SDA pin requires VCC pull-up
- Write protect enables writes at VSS only
- Data retention greater than 200 years
Typical Applications
- Nonvolatile configuration storage
- I2C parameter memory
- Board identification data
- Calibration value storage
- Event and usage logging
- Multi-device EEPROM expansion
- Write-protected system settings
Procurement Notes
When requesting a quote for 24LC512, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For memory and storage sourcing, density, organization, speed grade, voltage, package, temperature grade, date code, lifecycle status and original packing condition should be verified before approval.
FAQ
What memory density does the 24LC512 provide?
The 24LC512 provides 512 Kbit of nonvolatile EEPROM memory organized as 64K x 8.
What supply voltage range is specified for the 24LC512?
The 24LC512 operates from 2.5 V to 5.5 V with 400 kHz maximum clock operation.
How many 24LC512 devices can share the same I2C bus?
Up to eight devices can be placed on the same bus using the A0, A1, and A2 address pins, supporting up to 4 Mbit total address space.
What is the 24LC512 page write capability?
The device supports a 128-byte page write buffer with a 5 ms maximum page or byte write cycle time via self-timed erase/write.
How does the write protect pin operate on the 24LC512?
The write protect function enables writes when WP is tied to VSS and inhibits writes when WP is tied to VCC; read operations are unaffected.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.