Specification	AT89C52-33AI

Connectivity	UART, USART, SIO
Core Processor	8051
Core Size (Bit Width)	8 Bit
Mounting Type	Surface Mount
Number of I/O	32
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
Oscillator Type	Internal
Package / Case	44-TQFP
Package Length	10 mm
Package Name	44‑TQFP
Package Width	10 mm
Program Memory Depth	8 K
Program Memory Size	8 KB
Program Memory Type	FLASH
Program Memory Width	8 bit
RAM Size Depth	256
RAM Size Width	8 bit
Speed	33 MHz
Voltage - Supply (Vcc/Vdd) Maximum	6 V
Voltage - Supply (Vcc/Vdd) Minimum	4 V

AT89C52 Series

Part	Voltage - Supply (Vcc/Vdd) Minimum	Voltage - Supply (Vcc/Vdd) Maximum	Speed	Connectivity	Package Width	Package Name	Package Length	Program Memory Depth	Program Memory Width	Program Memory Size	Core Size (Bit Width)	Program Memory Type	RAM Size Width	RAM Size Depth	Mounting Type	Number of I/O	Package / Case	Core Processor	Operating Temperature (Min)	Operating Temperature (Max)	Oscillator Type
Microchip Technology AT89C52-33JI	4 V	6 V	33 MHz	SIO UART USART	16.6 mm	44-PLCC	16.6 mm	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Surface Mount	32	44-LCC (J-Lead)	8051	-40 °C	85 °C	Internal
Microchip Technology AT89C52-24JI	4 V	6 V	24 MHz	SIO UART USART	16.6 mm	44-PLCC	16.6 mm	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Surface Mount	32	44-LCC (J-Lead)	8051	-40 °C	85 °C	Internal
Microchip Technology AT89C52-24JC	4 V	6 V	24 MHz	SIO UART USART	16.6 mm	44-PLCC	16.6 mm	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Surface Mount	32	44-LCC (J-Lead)	8051	0 °C	70 °C	Internal
Microchip Technology AT89C52-16JI	4 V	6 V	16 MHz	SIO UART USART	16.6 mm	44-PLCC	16.6 mm	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Surface Mount	32	44-LCC (J-Lead)	8051	-40 °C	85 °C	Internal
Microchip Technology AT89C52-33PI	4 V	6 V	33 MHz	SIO UART USART	15.24 mm	40-DIP 40-PDIP	0.6 in	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Through Hole	32		8051	-40 °C	85 °C	Internal
Microchip Technology AT89C52-24PI	4 V	6 V	24 MHz	SIO UART USART	15.24 mm	40-DIP 40-PDIP	0.6 in	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Through Hole	32		8051	-40 °C	85 °C	Internal
Microchip Technology AT89C52-24PC	4 V	6 V	24 MHz	SIO UART USART	15.24 mm	40-DIP 40-PDIP	0.6 in	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Through Hole	32		8051	0 °C	70 °C	Internal
Microchip Technology AT89C52-24AC	4 V	6 V	24 MHz	SIO UART USART	10 mm	44‑TQFP	10 mm	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Surface Mount	32	44-TQFP	8051	0 °C	70 °C	Internal
Microchip Technology AT89C52-33AI	4 V	6 V	33 MHz	SIO UART USART	10 mm	44‑TQFP	10 mm	8 K	8 bit	8 KB	8 Bit	FLASH	8 bit	256	Surface Mount	32	44-TQFP	8051	-40 °C	85 °C	Internal

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