描述 Description

The Microchip Technology Inc. 24LCS21A is a128 x 8-bit dual-mode Electrically Erasable PROM.This device is designed for use in applicationsrequiring storage and serial transmission of configurationand control information. Two modes of operationhave been implemented: Transmit-Only mode andBidirectional mode. Upon power-up, the device will bein the Transmit-Only mode, a valid high-to-low transition on the SCLpin will cause the device to enter the Transition mode and look for a valid control byte on the I2C?Compatible bus. If itdetects 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 tothe Transmit-Only mode after it receives 128 consecutiveVCLK pulses while the SCL pin is idle. The24LCS21A also enables the user to write-protect theentire memory array using its write-protect pin. The24LCS21A is available in a standard 8-pin PDIP andSOIC package in industrial temperature range.

特性 Features

Single Supply with Operation Down to 2.5V
Completely Implements DDC1?/DDC2? Interfacefor Monitor Identification, Including Recoveryto DDC1
Low-Power CMOS Technology: - 1 mA active current, typical - 10 uA 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)
Hardware Write-Protect Pin
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:- Industrial (I): -40°C to +70°C
Pb-Free and RoHS Compliant

簡(jiǎn)介

24LCS21A屬于集成電路（IC）的存儲(chǔ)器。由制造生產(chǎn)的24LCS21A存儲(chǔ)器存儲(chǔ)器是集成電路上用作數(shù)據(jù)存儲(chǔ)設(shè)備的半導(dǎo)體器件。這些器件分為非易失性或易失性兩種，格式包括 CBRAM、DRAM、EEPROM、EERAM、EPROM、閃存、FRAM、NVSRAM、PCM (PRAM)、PSRAM、RAM 和 SRAM。這些器件的存儲(chǔ)容量為 64 b 至 6 Tb 不等，接口有 I2C、MMC、并行、eMMC、串行、單線、SPI、UFS、Xccela 總線和 1-線。