AT89LP51RC2 Atmel Corporation, AT89LP51RC2 Datasheet - Page 250
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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Table of Contents (Continued)
ii
AT89LP51RB2/RC2/IC2 Preliminary
7
8
9
10 External Interrupts ................................................................................. 66
11 Keyboard Interface and General-purpose Interrupts .......................... 66
12 I/O Ports .................................................................................................. 69
13 Enhanced Timer 0 and Timer 1 with PWM ........................................... 77
Reset ....................................................................................................... 51
Power Saving Modes ............................................................................. 55
Interrupts ................................................................................................ 59
6.7
6.8
6.9
6.10
7.1
7.2
7.3
7.4
7.5
7.6
8.1
8.2
8.3
8.4
9.1
9.2
9.3
11.1
12.1
12.2
12.3
12.4
13.1
13.2
13.3
X1/X2 Feature .................................................................................................46
System Clock Prescaler ..................................................................................47
Peripheral Clocks ............................................................................................48
Timer Subclock (AT89L51IC2) ........................................................................50
Power-on Reset ...............................................................................................51
Brown-out Reset ..............................................................................................52
External Reset .................................................................................................53
Hardware Watchdog Reset .............................................................................54
PCA Watchdog Reset ......................................................................................54
Software Reset ................................................................................................54
Idle Mode .........................................................................................................55
Power-down Mode ...........................................................................................56
Reducing Power Consumption ........................................................................57
Low Power Configuration ................................................................................58
Interrupt Priority ...............................................................................................59
Interrupt Response ..........................................................................................61
Interrupt Registers ...........................................................................................63
Registers .........................................................................................................68
Port Configuration ............................................................................................69
Port Analog Functions .....................................................................................72
Port Read-Modify-Write ...................................................................................73
Port Alternate Functions ..................................................................................73
Registers .........................................................................................................78
Mode 0 – Variable Width Timer/Counter .........................................................80
Mode 1 – 16-bit Auto-Reload Timer/Counter ...................................................81
3722A–MICRO–10/11
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