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P89V51RB2BBC,557

Type	Description
rohs:	RoHS
speed:	40MHz
ram size:	1K x 8
core size:	8-Bit
eeprom size:	-
part status:	Obsolete
peripherals:	Brown-out Detect/Reset, POR, PWM, WDT
connectivity:	SPI, UART/USART
mounting type:	Surface Mount
number of i/o:	32
core processor:	8051
package / case:	44-TQFP
data converters:	-
oscillator type:	Internal
program memory size:	16KB (16K x 8)
program memory type:	FLASH
operating temperature:	0°C ~ 70°C (TA)
supplier device package:	44-TQFP (10x10)
voltage - supply (vcc/vdd):	4.5V ~ 5.5V