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ATtiny43U 데이터시트(PDF) 143 Page - ATMEL Corporation

부품명 ATtiny43U
상세설명  8-bit Microcontroller with 4K Bytes In-System Programmable Flash and Boost Converter
PDF  182 Pages
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제조업체  ATMEL [ATMEL Corporation]
홈페이지  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATtiny43U 데이터시트(HTML) 143 Page - ATMEL Corporation

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143
8048B–AVR–03/09
Figure 19-1. Parallel Programming
Table 19-10. Pin Name Mapping
Signal Name in
Programming Mode
Pin
Name
I/O
Function
WR
PA0
I
Write Pulse (Active low).
XA0
PA1
I
CLKI Action Bit 0
XA1/BS2
PA2
I
CLKI Action Bit 1. Byte Select 2 (“0” selects low byte, “1”
selects 2’nd high byte).
PAGEL/BS1
PA3
I
Byte Select 1 (“0” selects low byte, “1” selects high byte).
Program Memory and EEPROM Data Page Load.
OE
PA5
I
Output Enable (Active low).
RDY/BSY
PA6
O
0: Device is busy programming, 1: Device is ready for new
command.
DATA I/O
PB7-PB0
I/O
Bi-directional Data bus (Output when OE is low).
Table 19-11. Pin Values Used to Enter Programming Mode
Pin
Symbol
Value
PAGEL/BS1
Prog_enable[3]
0
XA1/BS2
Prog_enable[2]
0
XA0
Prog_enable[1]
0
WR
Prog_enable[0]
0
VCC
+5V
GND
CLKI/PA6
PA5
PA4
PA0
PA3
PA1
PA2
PB7 - PB0
DATA
RESET/PA7
+12 V
PAGEL/BS1
XA0
XA1/BS2
OE
RDY/BSY
WR



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