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AT89LP51ID2 데이터시트 PDF : 부품 기능 및 핀배열

부품번호 AT89LP51ID2
기능 8-bit Microcontroller
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AT89LP51ID2 데이터시트 및 AT89LP51ID2 PDF

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AT89LP51ID2 pdf, 반도체, 판매, 대치품
Table 1-1. Atmel AT89LP51RD2/ED2/ID2 Pin Description
Pin Number
VQFP
VQFN PLCC
(1)
PDIP
Symbol
Type Description
16 22 20 GND
I Ground
17 23
P4.3
I/O P4.3: User-configurable I/O Port 4bit 3.
I/O DDA: Bidirectional Debug Data line for the On-Chip Debug Interface when OCD is enabled.
18
24
21
P2.0
I/O P2.0: User-configurable I/O Port 2 bit 0.
O A8: External memory interface Address bit 8.
19
25
22
P2.1
I/O P2.1: User-configurable I/O Port 2 bit 1.
O A9: External memory interface Address bit 9.
I/O P2.2: User-configurable I/O Port 2 bit 2.
20 26 23
P2.1
O DA-: DAC negative differential output.
O A10: External memory interface Address bit 10.
I/O P2.3: User-configurable I/O Port 2 bit 3.
21 27 24
P2.3
O DA+-: DAC positive differential output.
O A11: External memory interface Address bit 11.
I/O P2.4: User-configurable I/O Port 2 bit 5.
22 28 25 P2.4
I AIN0: Analog Comparator Input 0.
O A12: External memory interface Address bit 12.
I/O P2.5: User-configurable I/O Port 2 bit 5.
23 29 26 P2.5
I AIN1: Analog Comparator Input 1.
O A13: External memory interface Address bit 13.
I/O P2.6: User-configurable I/O Port 2 bit 6.
24 30 27 P2.6
I AIN2: Analog Comparator Input 2.
O A14: External memory interface Address bit 14.
I/O P2.7: User-configurable I/O Port 2 bit 7.
25 31 28 P2.7
I AIN3: Analog Comparator Input 3.
O A15: External memory interface Address bit 15.
26
32
29
P4.5
I/O P4.5: User-configurable I/O Port 4 bit 5.
O PSEN: External memory interface Program Store Enable (active-low).
27
33
30
P4.4
I/O P4.4: User-configurable I/O Port 4 bit 4.
I/O ALE: External memory interface Address Latch Enable.
28 34
P4.0
I/O
P4.0: User-configurable I/O Port 4 bit 0.
SCL: TWI Serial Clock line. This line is an output in mater mode and an input in slave mode.
29 35 31 POL
I POL: Reset polarity
30
36
32
P0.7
I/O P0.7: User-configurable I/O Port 0 bit 7.
I/O AD7: External memory interface Address/Data bit 7.
I/O P0.6: User-configurable I/O Port 0 bit 6.
31 37 33 P0.6 I/O AD6: External memory interface Address/Data bit 6.
I ADC6: ADC analog input 6.
I/O P0.5: User-configurable I/O Port 0 bit 5.
32 38 34 P0.5 I/O AD5: External memory interface Address/Data bit 5.
I ADC5: ADC analog input 5.
I/O P0.4: User-configurable I/O Port 0 bit 4.
33 39 35 P0.4 I/O AD4: External memory interface Address/Data bit 4.
I ADC4: ADC analog input 4.
I/O P0.3: User-configurable I/O Port 0 bit 3.
34 40 36 P0.3 I/O AD3: External memory interface Address/Data bit 3.
I ADC3: ADC analog input 3.
4 AT89LP51RD2/ED2/ID2 Summary - Preliminary
3714AS–MICRO–7/11

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AT89LP51ID2 전자부품, 판매, 대치품
AT89LP51RD2/ED2/ID2 Summary - Preliminary
2.1 Block Diagram
Figure 2-1. Atmel AT89LP51RD2/ED2/ID2 Block Diagram
Flash Code
64KB
Boot ROM
2KB
EEPROM
4KB
(AT89LP51ED2/ID2)
RAM
256 Bytes
ERAM
2KB
XRAM
Interface
8051 Single Cycle CPU
with 12-cycle Compatiblity
Crystal or
Resonator
Crystal or
Resonator
Port 0
Configurable I/O
Port 1
Configurable I/O
Port 2
Configurable I/O
Port 3
Configurable I/O
Port 4
Configurable I/O
Dual Analog
Comparators
Configurable
Oscillator A
Configurable
Oscillator B
(AT89LP51ID2)
Watchdog
Timer
Keyboard
Interface
Dual Data
Pointers
Multiply
Accumulate
(16 x 16)
POR
BOD
Internal 8 MHz
RC Oscillator
On-Chip
Debug
UART
SPI
Timer 0
Timer 1
Timer 2
PCA
10-bit
ADC/DAC
TWI
7
2.2 System Configuration
The AT89LP51RD2/ED2/ID2 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 AT89LP51RD2/ED2/ID2 must be properly configured before correct operation can
occur.
2.2.1
Fuse Options
Table 2-1 lists the fusible options for the AT89LP51RD2/ED2/ID2. These options maintain their
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 the
datasheet.
3714AS–MICRO–7/11
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