93C66B屬于集成電路（IC）的存儲器。由微芯科技股份有限公司制造生產(chǎn)的93C66B存儲器存儲器是集成電路上用作數(shù)據(jù)存儲設(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。

The Microchip Technology Inc. 93AA46/56/66 are 1K, 2K and 4K low voltage serial Electrically Erasable PROMs. The device memory is configured as x8 or x16 bits depending on the ORG pin setup.

Advanced CMOS technology makes these devices ideal for low power nonvolatile memory applications. The 93AA Series is available in standard 8-pin PDIP and surface mount SOIC packages. The rotated pin-out 93AA46X/56X/66X are offered in the “SN” package only.