attiny261a-xu ATMEL Corporation, attiny261a-xu Datasheet - Page 175
attiny261a-xu
Manufacturer Part Number
attiny261a-xu
Description
8-bit Avr Microcontroller With 2/4/8k Bytes In-system Programmable Flash
Manufacturer
ATMEL Corporation
Datasheet
1.ATTINY261A-XU.pdf
(292 pages)
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8197B–AVR–01/10
Figure 18-3. Parallel Programming.
Table 18-12. Pin Name Mapping
Programming Mode
Signal Name in
PAGEL/BS1
RDY/BSY
XA1/BS2
DATA I/O
XA0
WR
OE
PAGEL/BS1
RDY/BSY
XA1/BS2
+12 V
XA0
WR
OE
PA7-PA0
Name
PB0
PB1
PB2
PB3
PB5
PB6
Pin
I/O
I/O
O
I
I
I
I
I
PB0
PB1
PB2
PB3
XTAL1/PB4
PB5
PB6
RESET
GND
Function
Write Pulse (Active low).
XTAL Action Bit 0
XTAL Action Bit 1. Byte Select 2 (“0” selects low byte, “1”
selects 2’nd high byte).
Byte Select 1 (“0” selects low byte, “1” selects high byte).
Program Memory and EEPROM Data Page Load.
Output Enable (Active low).
0: Device is busy programming, 1: Device is ready for new
command.
Bi-directional Data bus (Output when OE is low).
PA7 - PA0
AVCC
VCC
+5V
+5V
DATA
175
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