參數(shù)資料
型號(hào): FM24C256FLZYYX
廠商: Fairchild Semiconductor Corporation
元件分類: DRAM
英文描述: 256 KBit 2-Wire Bus Interface Serial EEPROM with Write Protect
中文描述: 256千比特2線總線接口的串行EEPROM的寫(xiě)保護(hù)
文件頁(yè)數(shù): 1/12頁(yè)
文件大?。?/td> 89K
代理商: FM24C256FLZYYX
1
www.fairchildsemi.com
FM24C256 rev. B.3
F
June 2000
2000 Fairchild Semiconductor International
FM24C256
256 KBit 2-Wire Bus Interface
Serial EEPROM with Write Protect
General Description
The FM24C256/C256L/C256LZ devices are 256 Kbits CMOS
nonvolatile electrically erasable memory. These devices offer the
designer different low voltage and low power options. They
conform to all requirements in the Extended IIC 2-wire protocol.
Furthermore, they are designed to minimize device pin count and
simplify PC board layout requirements.
The entire memory array can be write disabled (Write Protection)
by connecting the WP pin to V
CC
.
Functional address lines allow up to eight devices on the same
bus, for up to a total of 2 Mbit address space.
The IIC communication protocol uses CLOCK (SCL) and DATA
I/O (SDA) lines to synchronously clock data between the master
(for example a microprocessor) and the slave EEPROM device(s).
Fairchild EEPROMs are designed and tested for applications
requiring high endurance, high reliability, and low power con-
sumption.
Block Diagram
Features
I
Extended Operating Voltages
— C256: 4.5V - 5.5V
— C256L: 2.7V - 5.5V
— C256LZ: 2.7V - 5.5V
I
Low Power CMOS
— 1mA active current typical
— C256/C256L: 10
μ
A standby current typical
— C256LZ: less than 1
μ
A standby current
I
2-wire IIC serial interface
I
64 byte page write mode
I
Max write cycle time of 6ms byte/page
I
40 years data retention
I
Endurance: 100,000 data changes
I
Hardware write protect for entire array
I
Schmitt trigger inputs for noise suppression
I
Electrostatic discharge protection > 4000V
I
8-pin DIP and 8-pin SO (150 mil) packages. Contact factory
for CSP package availability
DS800023-1
H.V. GENERATION
TIMING &CONTROL
E2PROM
ARRAY
YDEC
DATA REGISTER
XDEC
CONTROL
LOGIC
WORD
ADDRESS
COUNTER
SLAVE ADDRESS
REGISTER &
COMPARATOR
START
STOP
LOGIC
WRITE
LOCKOUT
START CYCLE
CK
DIN
R/W
LOAD
INC
SDA
SCL
WP
VCC
DOUT
A2
A1
A0
相關(guān)PDF資料
PDF描述
FM24C256 256K-Bit 2-Wire Bus Interface Serial EEPROM with Write Protect(帶寫(xiě)保護(hù)的256K位的兩線控制總線接口串行EEPROM)
FM24C256LZEYYX 256 KBit 2-Wire Bus Interface Serial EEPROM with Write Protect
FM24C256FLZEYYX 256 KBit 2-Wire Bus Interface Serial EEPROM with Write Protect
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