AT89LP51RD2 Atmel Corporation, AT89LP51RD2 Datasheet - Page 252
AT89LP51RD2
Manufacturer Part Number
AT89LP51RD2
Description
Manufacturer
Atmel Corporation
Specifications of AT89LP51RD2
Flash (kbytes)
64 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)
2.25
Self Program Memory
API
Operating Voltage (vcc)
2.4 to 5.5
Timers
4
Isp
SPI/OCD/UART
Watchdog
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT89LP51RD2-20AAU
Manufacturer:
INFINEON
Quantity:
450
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Table of Contents (Continued)
iv
AT89LP51RD2/ED2/ID2 Preliminary
19 Two-Wire Serial Interface .................................................................... 136
20 Dual Analog Comparators ................................................................... 159
21 Digital-to-Analog/Analog-to-Digital Converter .................................. 166
22 Instruction Set Summary .................................................................... 175
23 On-Chip Debug System ....................................................................... 185
24 Flash Memory Programming .............................................................. 187
18.4
18.5
18.6
19.1
19.2
19.3
19.4
19.5
19.6
20.1
20.2
20.3
21.1
21.2
21.3
21.4
21.5
21.6
21.7
22.1
23.1
23.2
23.3
24.1
24.2
24.3
24.4
Error Conditions .............................................................................................132
Serial Clock Timing ........................................................................................133
Registers .......................................................................................................134
Data Transfer and Frame Format ..................................................................137
Multi-master Bus Systems, Arbitration and Synchronization .........................139
Overview of the TWI Module .........................................................................141
Register Overview .........................................................................................143
Using the TWI ................................................................................................144
Transmission Modes .....................................................................................146
Analog Input Muxes .......................................................................................160
Internal Reference Voltage ............................................................................161
Comparator Interrupt Debouncing .................................................................161
ADC Operation ..............................................................................................168
Temperature Sensor ......................................................................................169
DAC Operation ..............................................................................................169
Clock Selection ..............................................................................................170
Starting a Conversion ....................................................................................171
Noise Considerations ....................................................................................171
Registers .......................................................................................................172
Instruction Set Extensions .............................................................................179
Physical Interface ..........................................................................................185
Software Breakpoints ....................................................................................186
Limitations of On-Chip Debug .......................................................................186
Memory Organization ....................................................................................188
User Configuration Fuses ..............................................................................190
Flash Hardware Security ...............................................................................191
In-Application Programming (IAP) .................................................................192
3714A–MICRO–7/11
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