描述 Description

The Microchip Technology Inc. 24LCS22A is a 256 x 8-bitdual-mode Electrically Erasable PROM (EEPROM). Thisdevice is designed for use in applications requiringstorage and serial transmission of configuration andcontrol information. Two modes of operation have beenimplemented: Transmit-Only mode (1 Kbit) andBidirectional mode (2 Kbit). Upon power-up, the devicewill be in the Transmit-Only mode, sending a serial bitstream of the memory array from 00h to 7Fh, clocked bythe VCLK pin. A valid high-to-low transition on the SCL pinwill cause the device to enter the Transition mode, andlook for a valid control byte on the I2C?Compatible bus. If it detects avalid control byte from the master, it will switch intoBidirectional mode, with byte selectable read/writecapability of the entire 2K memory array using SCL. If nocontrol byte is received, the device will revert to the Transmit-Only mode after it receives 128 consecutive VCLKpulses while the SCL pin is idle. The 24LCS22A is availablein standard 8-pin PDIP and SOIC packages. The24LCS22A features a flexible write-protect pin which isenabled by writing to address 7Fh (usually the checksumin VESA? applications.

特性 Features

Single Supply with Operation Down to 2.5V
Supports Enhanced EDID? (E-EDID?) 1.3
Completely Implements DDC1?/DDC2? Interfacefor Monitor Identification, including Recoveryto DDC1
2 Kbit Serial EEPROM Low-Power CMOSTechnology:
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
Data Retention >200 years

簡介

24LCS22A屬于集成電路（IC）的存儲器。由制造生產的24LCS22A存儲器存儲器是集成電路上用作數(shù)據(jù)存儲設備的半導體器件。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。