As an Amazon Associate, we earn from qualifying purchases. AT89C2051-12SI Microchip Technology | Integrated Circuits (ICs) | DigiKey Microchip Technology . AT89C2051-12SI Attributes Brand name, Manufacturer name, Manufacturer, Attribute01Microchip Technology Attribute00Integrated Circuits (ICs) Attribute0289C Attribute03Tube Attribute04Obsolete Attribute058051 Attribute068-Bit Attribute0712MHz Attribute08UART/USART Attribute09LED Attribute1015 Attribute112KB (2K x 8) Attribute12FLASH Attribute13, Attribute16- Attribute14128 x 8 Attribute154V ~ 6V Attribute17Internal Attribute18-40?C ~ 85?C (TA) Attribute19Surface Mount Attribute2020-SOIC (0.295", 7.50mm Width) Attribute2120-SOIC Attribute22AT89C2051 AttributeKey00Category AttributeKey01Mfr AttributeKey02Series AttributeKey03Package AttributeKey04Product Status AttributeKey05Core Processor AttributeKey06Core Size AttributeKey07Speed AttributeKey08Connectivity AttributeKey09Peripherals AttributeKey10Number of I/O AttributeKey11Program Memory Size AttributeKey12Program Memory Type AttributeKey13EEPROM Size AttributeKey14RAM Size AttributeKey15Voltage - Supply (Vcc/Vdd) AttributeKey16Data Converters AttributeKey17Oscillator Type AttributeKey18Operating Temperature AttributeKey19Mounting Type AttributeKey20Package / Case AttributeKey21Supplier Device Package AttributeKey22Base Product Number Extra Product NameAT89C2051-12SI Microchip Technology | Integrated Circuits (ICs) | DigiKey atoms, moq, multiple1 extraShipping, qtyInStock0 MPNAT89C2051-12SI SKU399923 snippet8051 89C Microcontroller IC 8-Bit 12MHz 2KB (2K x 8) FLASH 20-SOIC Distributor offers SellerSKUMOQIn stockMultiplePrices Digi-Key39992311