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T89C51RD2-SMSIM

64KB FLASH 8051 Microcontroller, 48 I/Os, SPI/UART/USART, PLCC Package

Obsolete

Access Time: 40us

Package/Case: PLCC

Core Architecture: 8051

Interface: SPI, UART, USART

T89C51RD2-SLSIM

IC Micro Ctrl 64K Flash 44PLCC

Obsolete

Package/Case: PLCC

Core Architecture: AVR

Frequency: 40MHz

Interface: I2C, SPI, UART, USART