T89C51RD2-SLSIM Atmel, T89C51RD2-SLSIM Datasheet - Page 58

• Manufacturer Part Number: T89C51RD2-SLSIM
• Description: IC MICRO CTRL 64K FLASH 44PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of T89C51RD2-SLSIM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

Flash Memory Status
Figure 21. Flash Memory Possible Contents
58
FC00h
0000h
T89C51RD2
Default
Boot
Virgin
After ISP
Application
T89C51RD2 parts are delivered in standard with the ISP boot in the Flash memory.
After ISP or parallel programming, the possible contents of the Flash memory are sum-
marized on the figure below:
Boot
Dedicated
ISP
After ISP
Boot
Virgin
or appli
After parallel
programming
Application
After parallel
programming
Dedicated
ISP
Boot
Virgin
or appli
After parallel
programming
Boot
Virgin
or appli
4243G–8051–05/03