参数资料
| 型号： | 24LC21A/SN |
| 厂商： | Microchip Technology |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 1KBIT 400KHZ 8SOIC |
| 产品培训模块： | I2C Serial EEPROM |
| 标准包装： | 100 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 1K (128 x 8) |
| 速度： | 100kHz，400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 2.5 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°C |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOICN |
| 包装： | 管件 |
24LC21A
1K 2.5V Dual Mode I 2 C ? Serial EEPROM
Features:
? Single Supply with Operation Down to 2.5V
Package Types
PDIP
? Completely Implements DDC1?/DDC2?
NC
1
8
Vcc
Interface for Monitor Identification, Including
Recovery to DDC1
? Pin and Function Compatible with 24LC21
? Low-Power CMOS Technology
- 1 mA typical active current
- 10 μ A standby current typical at 5.5V
NC
NC
V SS
2
3
4
7
6
5
VCLK
SCL
SDA
? 2-Wire Serial Interface Bus, I 2 C? Compatible
? 100 kHz (2.5V) and 400 kHz (5V) Compatibility
SOIC
? Self-Timed Write Cycle (including auto-erase)
? Page Write Buffer for up to Eight Bytes
? 1,000,000 Erase/Write Cycles Ensured
? Data Retention > 200 years
? ESD Protection > 4000V
? 8-pin PDIP and SOIC Package
NC
NC
NC
Vss
1
2
3
4
8
7
6
5
Vcc
VCLK
SCL
SDA
? Available for Extended Temperature Ranges
- Industrial (I): -40°C to +85°C
? Pb-Free and RoHS Compliant
Block Diagram
Description:
HV Generator
The Microchip Technology Inc. 24LC21A 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 informa-
I/O
Control
Logic
Memory
Control
Logic
XDEC
EEPROM
Array
tion. Two modes of operation have been implemented:
Page Latches
Transmit-Only mode and Bidirectional mode. Upon
power-up, the device will be in the Transmit-Only mode,
SDA
SCL
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 2 C bus. If it detects a valid control byte from the
master, it will switch into Bidirectional mode, with byte
selectable read/write capability of the memory array
using SCL. If no control byte is received, the device will
VCLK
V CC
V SS
Pin Function Table
YDEC
Sense AMP
R/ W Control
revert to the Transmit-Only mode after it receives 128
consecutive VCLK pulses while the SCL pin is idle. The
24LC21A is available in a standard 8-pin PDIP and
SOIC package in industrial temperature range.
DDC is a trademark of the Video Electronics Standards
Association.
I 2 C is a trademark of Philips Corporation.
? 2008 Microchip Technology Inc.
Name
V SS
SDA
SCL
VCLK
V CC
NC
Function
Ground
Serial Address/Data I/O
Serial Clock (Bidirectional mode)
Serial Clock (Transmit-Only mode)
+2.5V to 5.5V Power Supply
No Connection
DS21160G-page 1
相关PDF资料 |
PDF描述 |
|---|---|
| 24LC21AT/SN | IC EEPROM 1KBIT 400KHZ 8SOIC |
| 24LC21AT-I/SN | IC EEPROM 1KBIT 400KHZ 8SOIC |
| 24LC21A-I/SN | IC EEPROM 1KBIT 400KHZ 8SOIC |
| XC2S50-5FG256C | IC FPGA 2.5V 384 CLB'S 256-FBGA |
| 24C02C-E/P | IC EEPROM 2KBIT 400KHZ 8DIP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 24LC21AT/SN | 功能描述:电可擦除可编程只读存储器 2.5V Dual Mode RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC21AT/SN-CUT TAPE | 制造商:Microchip 功能描述:24LC21 Series 1 Kb I2C 2 Wire (128 x 8) 2.5V Serial EEPROM SMT - SOIC-8 |
| 24LC21AT-I/SN | 功能描述:电可擦除可编程只读存储器 2.5V Dual Mode RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC21AT-I/SNG | 功能描述:电可擦除可编程只读存储器 2.5V Dual Mode Lead Free Package RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| 24LC21-I/P | 功能描述:电可擦除可编程只读存储器 2.5V Dual Mode RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
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