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參數(shù)資料
| 型號(hào)： | 24LCS21A |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 1K 2.5V Dual Mode I 2 C Serial EEPROM |
| 中文描述： | 一千2.5V的雙模式的I 2 C串行EEPROM |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 115K |
| 代理商： | 24LCS21A |
1996 Microchip Technology Inc.
Preliminary
DS21161C-page 1
FEATURES
Single supply with operation down to 2.5V
Completely implements DDC1
interface for monitor identification, including
recovery to DDC1
Low power CMOS technology
- 1 mA typical active current
- 10
μ
A standby current typical at 5.5V
2-wire serial interface bus, I
100 kHz (2.5V) and 400 kHz (5V) compatibility
Self-timed write cycle (including auto-erase)
Hardware write-protect pin
Page-write buffer for up to eight bytes
10,000,000 erase/write cycles guaranteed
Data retention > 200 years
ESD Protection > 4000V
8-pin PDIP and SOIC package
Available for extended temperature ranges
- Commercial (C):
- Industrial (I):
-40
/DDC2
2
C
compatible
0
°
°
C to +70
C to +70
°
°
C
C
DESCRIPTION
The Microchip Technology Inc. 24LCS21A is a 128 x 8-
bit dual-mode Electrically Erasable PROM. This device
is designed for use in applications requiring storage
and serial transmission of configuration and control
information. Two modes of operation have been imple-
mented: Transmit-Only Mode and Bi-directional Mode.
Upon power-up, the device will be in the Transmit-Only
Mode, sending a serial bit stream of the memory array
from 00h to 7Fh, clocked by the VCLK pin. A valid high
to low transition on the SCL pin will cause the device to
enter the transition mode, and look for a valid control
byte on the I
C bus. If it detects a valid control byte from
the master, it will switch into Bi-directional Mode, with
byte selectable read/write capability of the memory
array using SCL. If no control byte is received, the
device will revert to the Transmit-Only Mode after it
receives 128 consecutive VCLK pulses while the SCL
pin is idle. The 24LCS21A also enables the user to
write-protect the entire memory array using its write-
protect pin. The 24LCS21A is available in a standard
8-pin PDIP and SOIC package in both commercial and
industrial temperature ranges.
2
PACKAGE TYPES
BLOCK DIAGRAM
PDIP
SOIC
2
NC
NC
WP
V
SS
1
2
3
4
8
7
6
5
V
CC
VCLK
SCL
SDA
2
NC
NC
WP
V
SS
1
2
3
4
8
7
6
5
V
CC
VCLK
SCL
SDA
HV GENERATOR
EEPROM
ARRAY
PAGE LATCHES
YDEC
XDEC
SENSE AMP
R/W CONTROL
MEMORY
CONTROL
LOGIC
I/O
CONTROL
LOGIC
WP
SDA
SCL
V
CC
V
SS
VCLK
24LCS21A
Serial EEPROM
1K 2.5V Dual Mode I
2
C
DDC is a trademark of the Video Electronics Standards Association.
I
C is a trademark of Philips Corporation.
2
This document was created with FrameMaker 4 0 4
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| 24LCS21 | 1K 2.5V Dual Mode I 2 C Serial EEPROM |
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| 24LCS52 | Connectors |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 24LCS21A/P | 功能描述:電可擦除可編程只讀存儲(chǔ)器 2.5V Dual Mode RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 24LCS21A/S | 制造商:Microchip Technology Inc 功能描述:1K 2.5V DUAL MODE SERIAL EEPRO - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24LCS21A/SN | 功能描述:電可擦除可編程只讀存儲(chǔ)器 2.5V Dual Mode RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| 24LCS21A/W | 制造商:Microchip Technology Inc 功能描述:1K 2.5V DUAL MODE SERIAL EEPROM WAFER - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24LCS21A/WF | 制造商:Microchip Technology Inc 功能描述:1K 2.5V DUAL MODE SERIAL EEPRO - Gel-pak, waffle pack, wafer, diced wafer on film |
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