参数资料
型号: NM24C32LZM8
厂商: FAIRCHILD SEMICONDUCTOR CORP
元件分类: PROM
英文描述: I2C Serial EEPROM
中文描述: 4K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8
封装: 0.150 INCH, PLASTIC, SOP-8
文件页数: 1/12页
文件大小: 87K
代理商: NM24C32LZM8
1
www.fairchildsemi.com
NM24C32 Rev. C.2
N
S
PRELIMINARY
March 1999
1999 Fairchild Semiconductor Corporation
NM24C32
32K-Bit Extended 2-Wire Bus Interface
Serial EEPROM with Write Protect
General Description:
The NM24C32 devices are 32,768 bits of CMOS nonvolatile
electrically erasable memory. These devices offer the designer
different low voltage and low power options, and they conform to
all specifications in the Extended IIC 2-wire protocol. Furthermore,
they are designed to minimize device pin count and simplify PC
board layout requirements.
The upper half of the memory can be disabled (Write Protection)
by connecting the WP pin to V
CC
. This section of memory then
becomes ROM.
This 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 voltage 2.7V – 5.5V
I
400 KHz clock frequency (F) at 2.7V - 5.5V
I
200
μ
A active current typical
10
μ
A standby current typical
1
μ
A standby typical (L)
0.1
μ
A standby typical (LZ)
I
IIC compatible interface
– Provides bidirectional data transfer protocol
I
32 byte page write mode
– Minimizes total write time per byte
I
Self timed write cycle
Typical write cycle time of 6ms
I
Hardware write protect for upper block
I
Endurance: 1,000,000 data changes
I
Data retention greater than 40 years
I
Packages available: 8-pin SO, 8-pin DIP
I
Low V
CC
programming lockout (3.8V - on Standard V
CC
devices only).
DS500073-1
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
相关PDF资料
PDF描述
NM24C32LZN I2C Serial EEPROM
NM24C32 32K-Bit Extended 2-Wire Bus Interface Serial EEPROM with Write Protect
NM24C32UFLEN I2C Serial EEPROM
NM24C32UFLM8 I2C Serial EEPROM
NM24C32UFLN I2C Serial EEPROM
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