Renesas R1EX24256BSAS0I#U0
$ 3.288
EOL
Price and Stock
Authorized Distributors
Non-Authorized Stocking Distributors
Non-Authorized Dealers
| Distributor | SKU | Min | Pkg | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Renesas | R1EX24256BSAS0I#U0 | 1,145 | 1 | 14h | ||||||||
| DigiKey | 559-R1EX24256BSAS0I#U0CT-ND | 1,145 | 1 | Cut Tape | ||||||||
| Component Stockers USA | R1EX24256BSAS0I#U0 | 1,574 | >1wk | |||||||||
| Worldway Electronics | R1EX24256BSAS0I#U0 | 28,099 | 7 | Tape & Reel | 15h | |||||||
| Heisener Electronics | R1EX24256BSAS0I#U0 | 3,666 | >1wk |
Inventory History
3 month trend: +0.00%
CAD Models
Download symbol, footprint, and 3D STEP
Alternate Parts
1 part available
CAD Models
Pin Table
Number
Category
Display Name & Functions
Model Info
| Sourced by | Renesas |
|---|---|
| Date of Release | Aug 12, 2025 |
| IPC Compliant | IPC-7351B |
| Style Guide Revision | Version 1.0 - Nov 1, 2024 |
| Datasheet Source | Version 4.00 - Dec 18, 2013 |
Verification
Based on the style guide and datasheet for this part, three independent electronics engineering experts created:
- 3 versions of the symbol and 2D footprint
- 1 version of the 3D STEP model (STEP format AP-214)
- A colour palette configuration for a manufacturer
All created library files are layer-mapping agnostic and can be easily mapped to your design.
Created symbols and footprints are then compared using the following checks:
Symbol
Automated Checks
- Part number
- Key parameters
- Package code
- Pin names/numbers
- Pin types
Manual Checks
- Pin organization per style guide
Footprint
Automated Checks
- IPC standard
- Silkscreen clearance
- Courtyard excess
- Package outline
- Polarity marking
- Pad size & position verification
3D STEP Model
Manual Checks
- Dimension verification
- Colour palette compliance
- Format compliance
- Mapping orientation to 2D footprint
- Position verification to 2D footprint
A final verification process is performed:
If symbols and footprints match: The part is verified as ECAD Ready
If symbols and footprints don’t match: A Senior Electronics Engineer will review all differences to ensure the part meets the style guide and datasheet requirements
Alternate Parts
This Part
Alternate Parts
Price @ 1000
$ 3.288
$ 2.825
$ 2.825
Stock
91,104
93,274
93,274
Authorized Distributors
2
2
2
Case/Package
SOP
SOP
SOP
Number of Pins
8
8
8
Density
-
256 kb
256 kb
Access Time
100 ns
900 ns
900 ns
Frequency
400 kHz
400 kHz
400 kHz
Interface
Serial
I2C
I2C
Min Supply Voltage
1.8 V
1.8 V
1.8 V
Max Supply Voltage
5.5 V
5.5 V
5.5 V
Supply Chain
Country of OriginPhilippines
Export Control Classification Number (ECCN) CodeEAR99
Harmonized Tariff Schedule (HTS) Code8542.32.0051
Introduction Date2013-01-08
Lifecycle StatusEOL (Last Updated: 2 months ago)
LTB Date2026-04-30
LTD Date2026-10-31
Manufacturer Lifecycle StatusLAST TIME BUY (Last Updated: 2 months ago)
Descriptions
Descriptions of Renesas R1EX24256BSAS0I#U0 provided by its distributors.
Two-Wire Serial Interface 256k EEPROM (32-kword × 8-bit)
EEPROM, 32KX8, Serial, CMOS, PDSO8
I2C/2-WIRE SERIAL EEPROM
IC EEPROM 256KBIT 400MHZ 8SOP
Manufacturer Aliases
Renesas has several brands around the world that distributors may use as alternate names. Renesas may also be known as the following names:
- Renesas Electronics
- Renesas Electronics America Inc
- Renesas Electronics America
- RENESA
- REN
- RENES
- RENESAS TECHNOLOGY CORP
- RENESAS TECHNOLOGY
- Renesas Electronics Corporation
- RENESAS ELECTRONICS CORP
- RENSAS
- RENASAS
- Renesas / Intersil
- RNS
- RENESAS-PB
- RENESASTEC
- RENESES
- Renesas Technology America
- Renesas Design Germany GmbH
- Renesas / IDT
- RENESASE
- RENESAS TECHNOLOGY HONG KONG
- Renesas Electronics Operations Services Limited
- RENEASAS
- RENESAS/M
Inventory History
3 month trend: +0.00%
CAD Models
Download symbol, footprint, and 3D STEP
Alternate Parts
1 part available
Technical Specifications
Physical
Case/PackageSOP
MSL1
MountSurface Mount
Number of Pins8
Number of Terminals8
Technical
Access Time100 ns
Ambient Temperature Range High85 °C
Clock Rate400 kHz
Part FamilyR1EX24256B
Frequency400 kHz
InterfaceSerial
Max Frequency400 kHz
Max Input Voltage5.5 V
Max Operating Temperature85 °C
Max Supply Current3 mA
Max Supply Voltage5.5 V
Memory Size256 kB
Memory TypeCMOS
Min Input Voltage1.8 V
Min Operating Temperature-40 °C
Min Supply Voltage1.8 V
Number of Circuits1
Operating Supply Voltage3.3 V
Temperature GradeIndustrial
Dimensions
Height1.73 mm
Height - Seated (Max)1.73 mm
Length5 mm
Terminal Pitch1.27 mm
Width4 mm
Documents
Download datasheets and manufacturer documentation for Renesas R1EX24256BSAS0I#U0.
Official Datasheet12 years ago
Compliance
Environmental Classification
China RoHSCompliant
REACH SVHCYes
RoHSCompliant
Compliance Statements