Peripherals is Brown-out Detect/Reset, POR, PWM - Embedded - Microcontrollers Distributor - AT89S2051-24PU AT89S2051-24SU AT89S4051-24SU

Part Number	Manufacturer / Brand	Brife Description	Part Status	Core Processor	Core Size	Speed	Connectivity	Peripherals	Number of I/O	Program Memory Size	Program Memory Type	EEPROM Size	RAM Size	Voltage - Supply (Vcc/Vdd)	Data Converters	Oscillator Type	Operating Temperature	Package / Case	Supplier Device Package
AT89S2051-24PU	Microchip Technology	IC MCU 8BIT 2KB FLASH 20DIP	Active	8051	8-Bit	24MHz	UART/USART	Brown-out Detect/Reset, POR, PWM	15	2KB (2K x 8)	FLASH	-	256 x 8	2.7 V ~ 5.5 V	-	Internal	-40°C ~ 85°C (TA)	20-DIP (0.300", 7.62mm)	20-PDIP
AT89S2051-24SU	Microchip Technology	IC MCU 8BIT 2KB FLASH 20SOIC	Active	8051	8-Bit	24MHz	UART/USART	Brown-out Detect/Reset, POR, PWM	15	2KB (2K x 8)	FLASH	-	256 x 8	2.7 V ~ 5.5 V	-	Internal	-40°C ~ 85°C (TA)	20-SOIC (0.295", 7.50mm Width)	20-SOIC
AT89S4051-24SU	Microchip Technology	IC MCU 8BIT 4KB FLASH 20SOIC	Active	8051	8-Bit	24MHz	UART/USART	Brown-out Detect/Reset, POR, PWM	15	4KB (4K x 8)	FLASH	-	256 x 8	2.7 V ~ 5.5 V	-	Internal	-40°C ~ 85°C (TA)	20-SOIC (0.295", 7.50mm Width)	20-SOIC