AT89LP51RC2 Atmel Corporation, AT89LP51RC2 Datasheet - Page 8
AT89LP51RC2
Manufacturer Part Number
AT89LP51RC2
Description
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
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2.1
2.2
2.2.1
8
Block Diagram
System Configuration
AT89LP51RB2/RC2/IC2 Preliminary
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
Section 24.2 “User Configuration Fuses” on page
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
Boot ROM
2KB
8051 Single Cycle CPU
with 12-cycle Compatiblity
Internal 8 MHz
RC Oscillator
256 Bytes
Accumulate
Watchdog
Dual Data
Keyboard
188.
Interface
(16 x 16)
On-Chip
Pointers
Multiply
RAM
Debug
Timer
POR
BOD
1152 Bytes
ERAM
ADC/DAC
Timer 0
Timer 1
Timer 2
UART
Interface
10-bit
PCA
XRAM
SPI
TWI
3722A–MICRO–10/11
7
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