24LC21A-P中文资料微芯科技数据手册PDF规格书
24LC21A-P规格书详情
描述 Description
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 information. Two modes of operation have been implemented:
Transmit-only mode and Bidirectional 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 I2C 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 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 both commercial and industrial temperature ranges.
特性 Features
• Single supply with operation down to 2.5V
• Completely implements DDC1™/DDC2™ interface for monitor identification, including recovery to DDC1
• Pin and function compatible with 24LC21
• Low-power CMOS technology
- 1 mA typical active current
- 10 µA standby current typical at 5.5V
• 2-wire serial interface bus, I2C™ compatible
• 100 kHz (2.5V) and 400 kHz (5V) compatibility
• 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
• Available for extended temperature ranges
- Commercial (C): 0°C to +70°C
- Industrial (I): -40°C to +85°C
供应商 | 型号 | 品牌 | 批号 | 封装 | 库存 | 备注 | 价格 |
---|---|---|---|---|---|---|---|
MROCHIP/微芯 |
24+ |
NA/ |
3386 |
原装现货,当天可交货,原型号开票 |
询价 | ||
MICROCHIP |
1815+ |
SOP8 |
6528 |
只做原装正品现货!或订货,假一赔十! |
询价 | ||
MICROCHIP/微芯 |
23+ |
DIP-8 |
6500 |
专注配单,只做原装进口现货 |
询价 | ||
MICROCHIP |
24+/25+ |
2120 |
原装正品现货库存价优 |
询价 | |||
MICROCHIP/微芯 |
25+ |
25000 |
原厂原包 深圳现货 主打品牌 假一赔百 可开票! |
询价 | |||
Microchip(微芯) |
23+ |
NA |
20094 |
正纳10年以上分销经验原装进口正品做服务做口碑有支持 |
询价 | ||
MICROCHIP/微芯 |
21+ |
20005 |
MIC/微芯优势分销 实单必成 可开13点增值税 |
询价 | |||
MICR |
22+ |
SOP |
8000 |
原装正品支持实单 |
询价 | ||
MICROCHIP |
2004 |
SOP8 |
609 |
原装现货海量库存欢迎咨询 |
询价 | ||
MIC |
0428+ |
SOP-8 |
6000 |
绝对原装自己现货 |
询价 |