AT89LP51RC2 Atmel Corporation, AT89LP51RC2 Datasheet - Page 7

• Manufacturer Part Number: AT89LP51RC2
• Manufacturer: Atmel Corporation

Specifications of AT89LP51RC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 42
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 7
• Adc Resolution (bits): 10
• Adc Speed (ksps): 153.8
• Sram (kbytes): 1.375
• Self Program Memory: API
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 4
• Isp: SPI/OCD/UART
• Watchdog: Yes

2.1
2.2
2.2.1
3722AS–MICRO–10/11
Block Diagram
System Configuration
Fuse Options
Figure 2-1.
The AT89LP51RB2/RC2/IC2 supports several system configuration options. Nonvolatile options
are set through user fuses that must be programmed through the flash programming interface.
Volatile options are controlled by software through individual bits of special function registers
(SFRs). The AT89LP51RB2/RC2/IC2 must be properly configured before correct operation can
occur.
Table 2-1
state even when the device is powered off. Some may be changed through the FLash API but
others can only be changed with an external device programmer. For more information, see
datasheet.
Resonator
Resonator
Crystal or
Crystal or
lists the fusible options for the AT89LP51RB2/RC2/IC2. These options maintain their
Atmel AT89LP51RB2/RC2/IC2 Block Diagram
Configurable I/O
Configurable I/O
Configurable I/O
Configurable I/O
Configurable I/O
Flash Code
Configurable
Configurable
Comparators
Dual Analog
Oscillator A
Oscillator B
24/32 KB
(AT89LP51IC2)
Port 0
Port 1
Port 2
Port 3
Port 4
AT89LP51RB2/RC2/IC2 Summary
Boot ROM
2KB
8051 Single Cycle CPU
with 12-cycle Compatiblity
Internal 8 MHz
RC Oscillator
256 Bytes
Accumulate
Watchdog
Dual Data
Keyboard
(16 x 16)
Interface
Pointers
On-Chip
Multiply
RAM
Timer
Debug
POR
BOD
1152 Bytes
ERAM
ADC/DAC
Timer 0
Timer 1
Timer 2
UART
Interface
10-bit
PCA
XRAM
SPI
TWI
7
7