The X28HC256 is a second generation high performance CMOS 32k x 8 EEPROM. It is fabricated with Intersil’s proprietary, textured poly floating gate technology, providing a highly reliable 5V only nonvolatile memory. The X28HC256 supports a 128-byte page write operation, effectively providing a 24μs/byte write cycle, and enabling the entire memory to be typically rewritten in less than 0. 8s. The X28HC256 also features DATA polling and Toggle bit polling, two methods of providing early end of write detection. The X28HC256 also supports the JEDEC standard software data protection feature for protecting against inadvertent writes during power-up and power-down. Endurance for the X28HC256 is specified as a minimum 100, 000 write cycles per byte and an inherent data retention of 100 years

Features

  • Access time: 90ns
  • Simple byte and page write
  • Single 5V supply
  • No external high voltages or VP-P control circuits
  • Self timed
  • No erase before write
  • No complex programming algorithms
  • No overerase problem
  • Low power CMOS
  • Active: 60mA
  • Standby: 500μA
  • Software data protection
  • Protects data against system level inadvertent writes
  • High-Speed page write capability
  • Highly reliable Direct Write™ cell
  • Endurance: 100,000 cycles
  • Data retention: 100 years
  • Early end of write detection
  • DATA polling
  • Toggle bit polling
  • RoHS compliant

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active PLCC Tube 30
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 30
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 30
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 30
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 30
Availability
Active PLCC Reel 750
Availability
Active PLCC Tube 30
Availability
Active PLCC Reel 750
Availability
Active PDIP Tube 13
Availability
Active PDIP Tube 13
Availability
Active PDIP Tube 13
Availability
Active PDIP Tube 13
Availability
Active SOICW Tube 25
Availability
Active SOICW Tube 25
Availability
Active SOICW Tube 25
Availability

Documentation & Downloads

Title language Type Format File Size Date
Datasheets & Errata
X28HC256 Datasheet Datasheet PDF 867 KB
User Guides & Manuals
EEPROM Part Number Guide 日本語 Guide PDF 259 KB
Application Notes & White Papers
RX Family SCIFA Clock Synchronous Single Master Control Module Using Firmware Integration Technology 日本語 Application Note PDF 736 KB
RX Family Clock Synchronous Single Master Control Software Using the RSPI 日本語 Application Note PDF 802 KB
RX Family, RL78 Family Renesas R1EX24xxx Series Serial EEPROM Control Software 日本語 Application Note PDF 688 KB
RL78/G14, RL78/G1C, RL78/L12, RL78/L13, RL78/L1C Group Clock Synchronous Single Master Control Software Using CSI Mode of Serial Array Unit 日本語 Application Note PDF 561 KB
RX Family, RL78 Family, 78K0R/Kx3-L Renesas R1EX25xxx Series Serial EEPROM Control Software 日本語 Application Note PDF 1.79 MB
RX210, RX21A, RX220, RX63N, RX63T, RX111, RX64M Group Clock Synchronous Single Master Control Software Using the SCI 日本語 Application Note PDF 1.15 MB
RX600, RX200 Series I²C Bus Single Master Control Software Using RIIC Serial Interface 日本語 Application Note PDF 1.36 MB
RX62N Group Clock Synchronous Single Master Control Software Using the SCI 日本語 Application Note PDF 241 KB
RX62N Group Clock Synchronous Single Master Control Software Using the RSPI 日本語 Application Note PDF 257 KB
78K0R/Kx3-L Clock Synchronous Single Master Control Software Using CSI Mode of Serial Array Unit 日本語 Application Note PDF 252 KB
RX610 Group Clock Synchronous Single Master Control Software Using the SCI 日本語 Application Note PDF 202 KB
Serial EEPROM of HN58X25xxx Series Control Using Exclusive Clock Synchronous Serial I/O (SI/O) of M16C Application Note PDF 147 KB
Serial EEPROM of HN58X25xxx Series Control Using Clock Synchronous Serial I/O (UART) of M16C Application Note PDF 228 KB
Serial EEPROM of HN58X25xxx Series Control Using Clock Synchronous SCI of Renesas SH Application Note PDF 189 KB
PCNs & PDNs
Unification of a JEDEC tray and a embossed carrier tape for LQFP package (Additional Information & Correction) 日本語 Product Change Notice PDF 4.86 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001B/E ) 日本語 Product Change Notice PDF 3.74 MB
Unification of a JEDEC tray and a embossed carrier tape for LQFP package ( PC-WRP-A001A/E ) 日本語 Product Change Notice PDF 1.46 MB
PCN15015 - Data Sheet & Wafer Fabrication Site Change for Listed Intersil X28HC256* Products Product Change Notice PDF 233 KB
PCN12087 - PLCC w/ Gold Bond Wire from ANST to ATP as Alternate Assembly Site Product Change Notice PDF 86 KB
PCN10077 - Alternate Manufacturing Site for Intersil X28HC256J* and X28HC64J* PLCC Packaged Products - Intersil Milpitas, CA Product Change Notice PDF 38 KB
PCN10056 - Manufacturing Site Change for Assembly of the Listed Intersil 28l PDIP Products - Amkor Philippines (ATP) Product Change Notice PDF 67 KB
Downloads
- RX Family SCIFA Clock Synchronous Single Master Control Module Using Firmware Integration Technology - Sample Code 日本語 Sample Code ZIP 5.22 MB
- RX Family Clock Synchronous Single Master Control Software Using the RSPI - Sample Code 日本語 Sample Code ZIP 871 KB
- RX Family, RL78 Family Renesas R1EX24xxx Series Serial EEPROM Control Software - Sample Code 日本語 Sample Code ZIP 673 KB
- RL78/G14, RL78/G1C, RL78/L12, RL78/L13, RL78/L1C Group Clock Synchronous Single Master Control Software Using CSI Mode of Serial Array Unit - Sample Code 日本語 Sample Code ZIP 585 KB
- RX Family, RL78 Family, 78K0R/Kx3-L Renesas R1EX25xxx Series Serial EEPROM Control Software - Sample Code 日本語 Sample Code ZIP 1.80 MB
- RX210, RX21A, RX220, RX63N, RX63T, RX111, RX64M Group Clock Synchronous Single Master Control Software Using the SCI - Sample Code 日本語 Sample Code ZIP 698 KB
- RX600, RX200 Series I²C Bus Single Master Control Software Using RIIC Serial Interface - Sample Code 日本語 Sample Code ZIP 851 KB
- RX62N Group Clock Synchronous Single Master Control Software Using the SCI - Sample Code 日本語 Sample Code ZIP 270 KB
- RX62N Group Clock Synchronous Single Master Control Software Using the RSPI - Sample Code Sample Code ZIP 284 KB
- RX62Nグループ RSPI を使ったクロック同期式シングルマスタ制御ソフトウェア Sample Code ZIP 336 KB
- 78K0R/Kx3-L Clock Synchronous Single Master Control Software Using CSI Mode of Serial Array Unit Ver.2.02 日本語 Sample Code ZIP 236 KB
- RX610 Group Clock Synchronous Single Master Control Software Using the SCI - Sample Code 日本語 Sample Code ZIP 203 KB
- Serial EEPROM HN58X25xxx Series Sample Program M16C(SI/O) Sample Code ZIP 149 KB
- Serial EEPROM HN58X25xxx Series Sample Program M16C(UART) Sample Code ZIP 272 KB
Other
EEPROM Product Outline 日本語 Overview PDF 1.76 MB
PLC18009 - Q2 Standard EOL Notice Product Life Cycle Notice PDF 345 KB
PLC17040 - Product Discontinuance / Obsolescence Notification for Listed Intersil Products Product Life Cycle Notice PDF 233 KB
PLC17019 - Q2 Cy 17 General PLC Notice Product Life Cycle Notice PDF 320 KB
PIN17006 - Q1 2017 Price Increase Price Increase Notice PDF 227 KB
Renesas Semiconductor Lead-Free Packages Brochure PDF 1.32 MB