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参数资料
| 型号： | NM24C65UFEN |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | PROM |
| 英文描述： | I2C Serial EEPROM |
| 中文描述： | 8K X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 |
| 封装： | PLASTIC, DIP-8 |
| 文件页数： | 1/11页 |
| 文件大小： | 89K |
| 代理商： | NM24C65UFEN |
1
www.fairchildsemi.com
NM24C65U Rev. B.1
N
PRELIMINARY
August 1999
1999 Fairchild Semiconductor Corporation
NM24C65U
64K-Bit Serial EEPROM with Write Protect
2-Wire Bus Interface
General Description:
The NM24C65U is a 64K (65,536) bit serial interface CMOS
EEPROM (Electrically Erasable Programmable Read-Only
Memory). This device fully conforms to the
Extended
I
2
C 2-wire
protocol which uses Clock (SCL) and Data I/O (SDA) pins to
synchronously clock data between the "master" (for example a
microprocessor) and the "slave" (the EEPROM device). In addi-
tion, the serial interface allows a minimal pin count packaging
designed to simplify PC board layout requirements and offers the
designer a variety of low voltage and low power options.
NM24C65U incorporates a hardware "Write Protect" feature, by
which the upper half of the memory can be disabled against
programming by connecting the WP pin to V
CC
. This section of
memory then effectively becomes a ROM (Read-Only Memory)
and can no longer be programmed as long as WP pin is connected
to V
CC
.
Fairchild EEPROMs are designed and tested for applications requir-
ing high endurance, high reliability and low power consumption for a
Block Diagram
continuously reliable non-volatile solution for all markets.
Functions
I
I
2
C compatible interface
I
65,536 bits organized as 8,192 x 8
I
100 KHz or 400 KHz operation
I
Extended 2.7V – 5.5V operating voltage
I
Self timed programming cycle (6ms typical)
I
"Programming complete" indicated by ACK polling
I
Memory "Upper Block" Write Protect pin
Features
I
The I
2
C interface allows the smallest I/O pincount of any
EEPROM interface
I
32 byte page write mode to minimize total write time per byte
I
Low V
programming lockout (3.8V)
—
"H" option (Standard V
CC
range) parts only
I
Typical 200
μ
A active current (I
CCA
)
I
Typical 1
μ
A standby current (I
SB
) for "L" devices and 0.1
μ
A
standby current for "LZ" devices
I
Endurance: Up to 1,000,000 data changes
I
Data retention greater than 40 years
DS800012-1
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
I
2
C
is a registered trademark of Philips Electronics N.V.
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相关代理商/技术参数 |
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| NM24C65UFM8 | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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| NM24C65ULN | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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