93LC56A-I/P Microchip Integrated Circuit (Dual-In-Line Packages) In Stock
The Microchip 93LC56A-I/P is a 2 Kbit serial EEPROM with 3-wire Microwire interface and 2.5 V to 5.5 V supply range. It supports 1,000,000 erase/write cycles minimum and data retention exceeding 200 years at 450 ns access time. Available in through-hole 8-pin PDIP package for easy prototyping and repair.
- Manufacturer
- Microchip
- Package
- Dual-In-Line Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- 93LC56A-I/P Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.1800(MOQ 1)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of 93LC56A-I/P?
- 2 Kbit EEPROM with 1,000,000 minimum erase/write endurance cycles for long-service-life applications
- Data retention exceeding 200 years, ensuring permanent non-volatile storage across product lifetimes
- Wide supply range of 2.5 V to 5.5 V with 3-wire Microwire serial interface at up to 2 MHz
- 450 ns read access time enabling fast data retrieval in low-power embedded systems
- 8-pin PDIP through-hole package for easy prototyping, field repair, and socketed installations
What is 93LC56A-I/P used for?
The 93LC56A-I/P is ideal for storing device configuration, calibration constants, and security keys in consumer electronics, appliances, and industrial equipment where data must persist for the product lifetime. Its 2.5 V to 5.5 V supply range and 3-wire interface make it compatible with both 3.3 V and 5 V microcontroller systems including PIC, AVR, and 8051 families. The through-hole PDIP package also suits prototyping boards and field-replaceable modules where socket mounting is preferred.
What are the specifications of 93LC56A-I/P?
| Pbfree Code | Yes |
| Manufacturer Package Code | PDIP-8 |
| Factory Lead Time | 12Weeks |
| YTEOL | 8 |
| Additional Feature | 1000000 ERASE/WRITE CYCLES MIN; DATA RETENTION > 200 YEARS |
| Clock Frequency-Max (fCLK) | 2MHz |
| Data Retention Time-Min | 200 |
| Endurance | 1000000 Write/Erase Cycles |
| JESD-30 Code | R-PDIP-T8 |
| JESD-609 Code | e3 |
| Memory Density | 2048bit |
| Memory IC Type | EEPROM |
| Memory Width | 8 |
| Number of Functions | 1 |
| Number of Ports | 1 |
| Number of Words | 256words |
| Number of Words Code | 256 |
| Operating Mode | SYNCHRONOUS |
| Organization | 256X8 |
| Output Characteristics | TOTEM POLE |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | DIP8,.3 |
| Package Shape | RECTANGULAR |
| Package Style | IN-LINE |
| Parallel/Serial | SERIAL |
| Qualification Status | Not Qualified |
| Ready/Busy | YES |
| Reverse Pinout | NO |
| Screening Level | TS 16949 |
| Serial Bus Type | MICROWIRE |
| Standby Current-Max | 0.000001A |
| Supply Current-Max | 0.002mA |
| 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 |
| Toggle Bit | YES |
| Write Cycle Time-Max (tWC) | 6ms |
| Write Protection | 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 |
Where can I find the 93LC56A-I/P datasheet?
93LC56A-I/P Datasheet DownloadOfficial datasheet from Microchip
What are equivalent replacements for 93LC56A-I/P?
Compatible alternatives and drop-in replacements for 93LC56A-I/P:
Frequently Asked Questions
How many erase/write cycles does the 93LC56A-I/P support and what data retention is guaranteed?
The 93LC56A-I/P guarantees a minimum of 1,000,000 erase/write cycles per cell and specifies data retention greater than 200 years, making it one of the most durable serial EEPROMs in the 2 Kbit class. These figures ensure reliable operation across decades of use in industrial and consumer products.
What supply voltage range does the 93LC56A-I/P accept, and which microcontroller families is it compatible with?
The 93LC56A-I/P operates from 2.5 V to 5.5 V, covering both 3.3 V and 5 V logic families. It connects directly to PIC, AVR, MSP430, and 8051 microcontrollers via its 3-wire Microwire interface running at up to 2 MHz without level-shifting circuitry in most mixed-voltage systems.
For storing calibration data in a sensor node, how quickly can the 93LC56A-I/P deliver a stored byte?
The 93LC56A-I/P provides a read access time of 450 ns, fast enough for real-time calibration lookups in sensor nodes operating at microcontroller clock speeds up to a few MHz. The 2 MHz maximum clock on the 3-wire interface limits serial throughput to approximately 250 kbps, which is more than adequate for reading 2 Kbits of calibration data in under 10 ms.
When would a designer choose the 8-pin PDIP package of the 93LC56A-I/P over an SOIC or SOT-23 variant?
The 8-pin PDIP package is preferred when prototyping on breadboards, using IC sockets for field replacement, or building low-volume products where hand-soldering through-hole parts is faster than placing surface-mount components. PDIP also simplifies rework during development because each pin is individually accessible without hot-air equipment.
What organization modes does the 93LC56A-I/P support and how does this affect address capacity?
The 93LC56A-I/P supports both 8-bit word (x8) and 16-bit word (x16) organization modes, selected via the ORG pin. In x8 mode the 2 Kbit array provides 256 addressable 8-bit locations; in x16 mode it provides 128 addressable 16-bit locations, giving designers flexibility to match memory layout to their firmware data structures.
Related Guides
CSD87313DMS Synchronous Buck Power Stage Design Guide
Design a compact CSD87313DMS synchronous buck stage with practical guidance for loss, gate drive, PCB layout, EMI, thermal validation, and sourcing.
Aug 6, 2026
STEF05SGR eFuse Selection Guide for 5 V Overcurrent Protection
Choose STEF05SGR for 5 V overcurrent protection by checking current-limit margin, inrush, thermal loss, fault response, and sourcing.
Aug 6, 2026
C0402C103K3RACTU Selection Guide: Choosing a 10 nF 0402 MLCC
Select C0402C103K3RACTU by voltage margin, X7R behavior, tolerance, 0402 assembly risk, and qualified alternatives.
Aug 4, 2026
STM32H753VIT6 MCU Selection Guide: Memory, Package, Connectivity, and Security
Choose STM32H753VIT6 by evaluating memory architecture, LQFP-100 pin fit, connectivity, security, power, and sourcing tradeoffs.
Aug 4, 2026
Why Buy from FindMyChip
About Microchip
Microchip is a leading electronic component manufacturer. FindMyChip sources Microchip ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
More from Microchip
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $0.1800 | $0.18 |
In Stock · 24h Response · Worldwide Shipping
Response within 24 hours · Worldwide shipping
“We've been using FindMyChip for 2 years. Pricing is consistently 20-30% below Mouser/DigiKey for volume orders.”
You May Also Like
ACS770ECB-200U-PFF-T
Allegro Microsystems
Integrated Circuit
ACS770KCB-150U-PFF-T
Allegro Microsystems
Integrated Circuit
MC33901WEF
NXP
Integrated Circuit
MC7808BDTRKG
ON Semiconductor
Integrated Circuit
PA94EC
Apex Microtechnology
Integrated Circuit
AP7315-28SR-7
Diodes Inc.
Integrated Circuit
74HCT245D
Nexperia
Integrated Circuit
CY62256VNLL-70ZXCT
Cypress Semiconductor
Integrated Circuit
EPM7032AETC44-4N
Intel
Integrated Circuit
EPM3512AQC208-10N
Intel
Integrated Circuit
EPM3256ATC144-7N
Intel
Integrated Circuit
EPM3256AQC208-7N
Intel
Integrated Circuit
EPM3256AQC208-10N
Intel
Integrated Circuit
EPM3128ATC100-7N
Intel
Integrated Circuit
EPM1270F256C4N
Intel
Integrated Circuit
EPF8282ATC100-4N
Intel
Integrated Circuit
EPF6016QC208-2N
Intel
Integrated Circuit
EPF6016ATC144-3N
Intel
Integrated Circuit
EPF10K30ATC144-3N
Intel
Integrated Circuit
EPC2TI32N
Intel
Integrated Circuit
EPC2LC20
Intel
Integrated Circuit
EP3SL150F1152C4N
Intel
Integrated Circuit
EP2SGX60DF780C5N
Intel
Integrated Circuit
EP2SGX60CF780C5N
Intel
Integrated Circuit