Integrated Circuits (ICs)

AT80C51RD2T-RLRUM

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Microchip Technology

C51RD2 ROMLESS TQFP44 IND 5V GREEN 44 TQFP 10X10X1MM T/R ROHS COMPLIANT: YES

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Integrated Circuits (ICs)

AT80C51RD2T-RLRUM

Active

Microchip Technology

C51RD2 ROMLESS TQFP44 IND 5V GREEN 44 TQFP 10X10X1MM T/R ROHS COMPLIANT: YES

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Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	AT80C51RD2T-RLRUM

Connectivity	UART/USART
Core Processor	80C51
Core Size	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-LQFP
Peripherals	POR, PWM, WDT
Program Memory Type	ROMless
RAM Size	1 K
Speed	40 MHz
Supplier Device Package	44-VQFP (10x10)
Voltage - Supply (Vcc/Vdd) [Max]	5.5 V
Voltage - Supply (Vcc/Vdd) [Min]	2.7 V

AT80C51RD2 Series

Part	Operating Temperature [Max]	Operating Temperature [Min]	Speed	Number of I/O	Program Memory Type	Supplier Device Package	Package / Case	Package / Case	Package / Case	RAM Size	Peripherals	Core Size	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Core Processor	Connectivity	Oscillator Type	Mounting Type
Microchip Technology AT80C51RD2-3CSIM	85 °C	-40 °C	40 MHz	32	ROMless	40-PDIL	15.24 mm	0.6 in	40-DIP	1 K	POR PWM WDT	8-Bit	2.7 V	5.5 V	80C51	UART/USART	Internal	Through Hole
Microchip Technology AT80C51RD2-RLTIM	85 °C	-40 °C	40 MHz	32	ROMless	44-VQFP (10x10)			44-LQFP	1 K	POR PWM WDT	8-Bit	2.7 V	5.5 V	80C51	UART/USART	Internal	Surface Mount
Microchip Technology AT80C51RD2T-RLRUM	85 °C	-40 °C	40 MHz	32	ROMless	44-VQFP (10x10)			44-LQFP	1 K	POR PWM WDT	8-Bit	2.7 V	5.5 V	80C51	UART/USART	Internal	Surface Mount
Microchip Technology AT80C51RD2-3CSUM	85 °C	-40 °C	40 MHz	32	ROMless	40-PDIL	15.24 mm	0.6 in	40-DIP	1 K	POR PWM WDT	8-Bit	2.7 V	5.5 V	80C51	UART/USART	Internal	Through Hole
Microchip Technology AT80C51RD2T-RLTUM	85 °C	-40 °C	40 MHz	32	ROMless	44-VQFP (10x10)			44-LQFP	1 K	POR PWM WDT	8-Bit	2.7 V	5.5 V	80C51	UART/USART	Internal	Surface Mount
Microchip Technology AT80C51RD2-SLRUM	85 °C	-40 °C	40 MHz	32	ROMless	44-PLCC (16.6x16.6)			44-LCC (J-Lead)	1 K	POR PWM WDT	8-Bit	2.7 V	5.5 V	80C51	UART/USART	Internal	Surface Mount
Microchip Technology AT80C51RD2-RLRUM	85 °C	-40 °C	40 MHz	32	ROMless	44-VQFP (10x10)			44-LQFP	1 K	POR PWM WDT	8-Bit	2.7 V	5.5 V	80C51	UART/USART	Internal	Surface Mount

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 4.16
		25	$ 3.82
		100	$ 3.46
	Digi-Reel®	1	$ 4.16
		25	$ 3.82
		100	$ 3.46
	Tape & Reel (TR)	2000	$ 3.46
Microchip Direct	T/R	1	$ 4.16
		25	$ 3.82
		100	$ 3.46
		1000	$ 3.18
		5000	$ 3.03
Newark	Each (Supplied on Full Reel)	100	$ 3.46

Description

General part information

AT80C51RD2 Series

High-performance version of the 80C51 8-bit microcontrollers that retains all features of the 80C52 adn adds programmable counter array, 1024 bytes of XRAM, hardware watchdog timer, keyboard interface, versatile serial channel that facilitates multiprocessor communication (EUART), and a speed improvement mechanism (X2 mode).

The device has two software-selectable modes of reduced activity and an 8-bit clock prescaler to further reduce power consumption. In idle mode, the CPU is frozen while the peripherals and the interrupt system operate. In the power-down mode, the RAM is saved and all other functions are inoperative.

Documents

Technical documentation and resources