Microchip 25LC256-I/SN, 256kbit Serial EEPROM Memory, 50ns 8-Pin SOIC Serial-SPI
- RS Stock No.:
- 0454167
- Mfr. Prt No.:
- 25LC256-I/SN
- Brand:
- Microchip
Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
EU Directives 2011/65/EU and 2015/863 restrict the use of the 10 substances below in the manufacture of specified types of electrical equipment.
Whilst this restriction does not legally apply to components, it is recognised that component “compliance” is relevant to many customers.
RS definition of RoHS Compliance:
- The product does not contain any of the restricted substances in concentrations and applications banned by the Directive,
- and for components, the product is capable of being worked on at the higher temperatures required by lead–free soldering
The restricted substances and maximum allowed concentrations in the homogenous material are, by weight:
| Substance | Concentration |
| Lead | 0.1% |
| Mercury | 0.1% |
| PBB (Polybrominated Biphenyls) | 0.1% |
| PBDE ( Polybrominated Diphenyl Ethers) | 0.1% |
| Hexavalent Chromium | 0.1% |
| Cadmium | 0.01% |
| DEHP (Bis (2-Ethylhexl) phthalate) | 0.1% |
| BBP (Benzyl butyl phthalate) | 0.1% |
| DBP (Dibutyl phthalate) | 0.1% |
| DIBP (Diisobutyl phthalate) | 0.1% |
The supplier of the item listed below has informed RS Components that the product is "RoHS Compliant".
RS Components has taken all reasonable steps to confirm this statement. Information relates only to products sold on or after the date of this certificate.
| RS stock number | 0454167 |
| Product description | Microchip 25LC256-I/SN, 256kbit Serial EEPROM Memory, 50ns 8-Pin SOIC Serial-SPI |
| Manufacturer / Brand | Microchip |
| Manufacturer part number | 25LC256-I/SN |
RS Components Ltd, Birchington Road, Corby, Northants, NN17 9RS, UK
Statement of Conformity
This statement confirms that the product detailed below complies with the specifications currently published in the RS media and has been subject to the strict quality conditions imposed by RS Components’ internal management systems. Furthermore and where applicable, it confirms that all relevant semiconductor devices have been handled and packed under conditions that meet the administrative and technical requirements of ANSI/ESD S20.20 and EN61340-5-1 electrostatics control standards.
| RS stock number | 0454167 |
| Product description | Microchip 25LC256-I/SN, 256kbit Serial EEPROM Memory, 50ns 8-Pin SOIC Serial-SPI |
| Manufacturer / Brand | Microchip |
| Manufacturer part number | 25LC256-I/SN |
The foregoing information relates to product sold on, or after, the date shown below.
RS COMPONENTS
| Date | Nov 23, 2024 |
RS Components Pte Ltd Robinson Road, P.O. Box 1582, Singapore 903132
Product Details
EEPROM Serial Access - Microchip
25AA256/25LC256 SPI Serial EEPROM
Microchip’s 25AA256/25LC256 family of devices are 256 Kbit SPI Serial EEPROMs available in a variety of package, temperature and power supply variants.
The Serial Peripheral Interface (SPI) is utilised to provide the required Clock Input (SCK), Data In (SI) and Data Out (SO) signals. The operation of these devices can be paused via a Hold pin (HOLD) which causes inputs to be ignored with the exception higher priority interrupts defined via the Chip Select (CS) pin.
Features
Max. Clock 10 MHz
Maximum write current 5 mA
Read current: 6 mA (typical)
Standby current: 1 μA (typical)
32,768 x 8-bit Organization
64-Byte Page
Self-Timed Erase and Write Cycles, 5 ms (maximum)
Block Write Protection: Protect none, 1/4, 1/2 or all of array
Built-In Write Protection: Power-on/off data protection circuitry, Write enable latch, Write-protect pin
Sequential Read
Endurance: >1M erase/write cycles
Data retention: >200 years
ESD protection: >4000V
Specifications
| Attribute | Value |
| Brand | Microchip |
| Minimum Operating Temperature | -40 °C |
| Mounting Type | Surface Mount |
| Data Retention | 200 yr |
| Interface Type | Serial-SPI |
| Dimensions | 4.9 x 3.9 x 1.25 mm |
| Memory Size | 256 kbit |
| Programming Voltage | 2.5 → 5.5 V |
| Maximum Random Access Time | 50 ns |
| Organisation | 32K x 8 bit |
| Package Type | SOIC |
| Maximum Operating Temperature | +85 °C |
| Maximum Operating Supply Voltage | 5.5 V |
| Minimum Operating Supply Voltage | 2.5 V |
| Pin Count | 8 |
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