AT89LP6440-20PU Atmel, AT89LP6440-20PU Datasheet - Page 191
AT89LP6440-20PU
Manufacturer Part Number
AT89LP6440-20PU
Description
MCU 8051 64K FLASH ISP 40PDIP
Manufacturer
Atmel
Series
89LPr
Datasheet
1.AT89LP6440-20MU.pdf
(194 pages)
Specifications of AT89LP6440-20PU
Core Processor
8051
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
38
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
8K x 8
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.4 V ~ 3.6 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
40-DIP (0.600", 15.24mm)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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3706A–MICRO–9/09
16 Serial Interface (UART) .......................................................................... 84
17 Enhanced Serial Peripheral Interface .................................................. 97
18 Two-Wire Serial Interface .................................................................... 104
19 Dual Analog Comparators ................................................................... 126
20 Digital-to-Analog/Analog-to-Digital Converter .................................. 133
16.1
16.2
16.3
16.4
16.5
16.6
16.7
17.1
17.2
17.3
17.4
18.1
18.2
18.3
18.4
18.5
18.6
19.1
19.2
19.3
20.1
20.2
20.3
20.4
20.5
Multiprocessor Communications .....................................................................84
Baud Rates ......................................................................................................86
More About Mode 0 .........................................................................................88
More About Mode 1 .........................................................................................91
More About Modes 2 and 3 .............................................................................93
Framing Error Detection ..................................................................................96
Automatic Address Recognition ......................................................................96
Master Operation .............................................................................................99
Slave Operation .............................................................................................100
Pin Configuration ...........................................................................................100
Serial Clock Timing ........................................................................................103
Data Transfer and Frame Format ..................................................................105
Multi-master Bus Systems, Arbitration and Synchronization .........................107
Overview of the TWI Module .........................................................................109
Register Overview .........................................................................................111
Using the TWI ................................................................................................112
Transmission Modes .....................................................................................114
Analog Input Muxes .......................................................................................127
Internal Reference Voltage ............................................................................128
Comparator Interrupt Debouncing .................................................................128
ADC Operation ..............................................................................................135
DAC Operation ..............................................................................................136
Clock Selection ..............................................................................................137
Starting a Conversion ....................................................................................137
Noise Considerations ....................................................................................138
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