Datasheet > X28HC256JI-90

X28HC256JI-90

更新时间： 2024-11-18 22:59:55

品牌	Logo	应用领域
英特矽尔 - INTERSIL		内存集成电路光电二极管可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
14页	301K
描述
5 Volt, Byte Alterable EEPROM

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数据手册
替代型号

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X28HC256JI-90 数据手册

X28HC256

256K, 32K x 8 Bit

Data Sheet

June 1, 2005

FN8108.0

DESCRIPTION

5 Volt, Byte Alterable EEPROM

The X28HC256 is a second generation high perfor-

mance CMOS 32K x 8 EEPROM. It is fabricated with

Intersil’s proprietary, textured poly floating gate tech-

nology, providing a highly reliable 5 Volt only nonvola-

tile memory.

FEATURES

• Access time: 70ns

• Simple byte and page write

—Single 5V supply

—No external high voltages or V 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

The X28HC256 supports a 128-byte page write opera-

tion, effectively providing a 24µs/byte write cycle, and

enabling the entire memory to be typically rewritten in

less than 0.8 seconds. 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 Pro-

tection feature for protecting against inadvertent writes

during power-up and power-down.

Endurance for the X28HC256 is specified as a mini-

mum 1,000,000 write cycles per byte and an inherent

data retention of 100 years.

• High speed page write capability

™

• Highly reliable Direct Write cell

—Endurance: 1,000,000 cycles

—Data retention: 100 years

• Early end of write detection

—DATA polling

—Toggle bit polling

BLOCK DIAGRAM

256Kbit

EEPROM

Array

X Buffers

Latches and

Decoder

A₀–A₁₄

Address

Inputs

I/O Buffers

and Latches

Y Buffers

Latches and

DECODER

I/O₀–I/O₇

Data Inputs/Outputs

Control

Logic and

Timing

V_CC

V_SS

CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.

1-888-INTERSIL or 1-888-468-3774 | Intersil (and design) is a registered trademark of Intersil Americas Inc.

All other trademarks mentioned are the property of their respective owners.

12 3 4 5 6 7...14

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X28HC256JI-90 替代型号

型号	品牌	替代类型	描述	数据表
AT28HC256F-90JU	MICROCHIP	功能相似	IC EEPROM 256KBIT 90NS 32PLCC
AT28HC256-90JU	MICROCHIP	功能相似	IC EEPROM 256KBIT 90NS 32PLCC

与X28HC256JI-90相关器件

型号	品牌	获取价格	描述	数据表
X28HC256JI-90T1	RENESAS	获取价格	256k, 32k x 8-Bit, 5V, Byte Alterable EEPROM; PDIP28, PLCC32, SOIC28; Temp Range: See Data
X28HC256JI-90T1	XICOR	获取价格	EEPROM, 32KX8, 90ns, Parallel, CMOS, PQCC32, PLASTIC, LCC-32
X28HC256JI-90T13	RENESAS	获取价格	EEPROM 5V
X28HC256JIZ-12	INTERSIL	获取价格	5 Volt, Byte Alterable EEPROM
X28HC256JIZ-12T13	RENESAS	获取价格	EEPROM 5V
X28HC256JIZ-15	INTERSIL	获取价格	5 Volt, Byte Alterable EEPROM
X28HC256JIZ-15T13	RENESAS	获取价格	EEPROM 5V
X28HC256JIZ-90	ROCHESTER	获取价格	LOW POWER CMOS EEPROM with hi-speed page write capability 256K EEPROM
X28HC256JIZ-90	INTERSIL	获取价格	5V, Byte Alterable EEPROM
X28HC256JIZ-90T13	RENESAS	获取价格	EEPROM, 32KX8, 90ns, Parallel, CMOS, PQCC32

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