參數(shù)資料
型號(hào): 24LC41IP
廠商: Microchip Technology Inc.
英文描述: 1K/4K 2.5V Dual Mode, Dual Port I2C⑩ Serial EEPROM
中文描述: 1K/4K 2.5V的雙模式,雙端口串行EEPROM的I2C⑩
文件頁(yè)數(shù): 1/18頁(yè)
文件大?。?/td> 150K
代理商: 24LC41IP
2004 Microchip Technology Inc.
DS21140F-page 1
24LC41
Features
Single supply with operation down to 2.5V
Completely implements DDC1
/DDC2
interface
for monitor identification
Separate high speed 2-wire bus for
microcontroller access to 4K-bit Serial EEPROM
Low-power CMOS technology
2 mA active current typical
20
μ
A standby current typical at 5.5V
Dual 2-wire serial interface bus
Hardware write-protect for both ports
Self-timed write cycle (including auto-erase)
Page write buffer for up to 8 bytes (DDC port) or
16 bytes (4K Port)
100 kHz (2.5V) and 400 kHz (5V) compatibility
1,000,000 erase/write cycles ensured
Data retention > 40 years
8-pin PDIP package
Available for extended temperature ranges
- Commercial (C):
- Industrial (I):
-40°C to
Description
The Microchip Technology Inc. 24LC41 is a dual-port
128 x 8 and 512 x 8-bit Electrically Erasable PROM
(EEPROM). This device is designed for use in applica-
tions requiring storage and serial transmission of
configuration and control information. Three modes of
operation have been implemented:
Transmit-only mode for the DDC Monitor Port
Bidirectional mode for the DDC Monitor Port
Bidirectional, industry-standard 2-wire bus for the
4K Microcontroller Access Port
Upon power-up, the DDC Monitor Port will be in the
Transmit-only mode, repeatedly sending a serial bit
stream of the entire memory array contents, clocked by
the VCLK/DWP pin. A valid high-to-low transition on
the DSCL pin will cause the device to enter the Bidirec-
tional mode, with byte-selectable read/write capability
of the memory array. The 4K-bit microcontroller port is
completely independent of the DDC port, therefore, it
can be accessed continuously by a microcontroller
without interrupting DDC transmission activity. The
24LC41 is available in a standard 8-pin PDIP package
in both commercial and industrial temperature ranges.
Package Type
Block Diagram
0°C to
+70°C
+85°C
2
DSCL
VCLK/DWP
V
SS
MSDA
1
2
3
4
8
7
6
5
DSDA
V
CC
MWP
MSCL
PDIP
EDID Table
1K Bit
4K Bit
Serial
EEPROM
MSDA
MSCL
MWP
DSDA
VCLK/DWP
DSCL
D
M
1K/4K 2.5V Dual Mode, Dual Port I
2
C
Serial EEPROM
Obsolete Device
I
2
C is a registered trademark of Philips Corporation.
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