ATTINY26L8SU SL383 Atmel, ATTINY26L8SU SL383 Datasheet - Page 112

• Manufacturer Part Number: ATTINY26L8SU SL383
• Description: MCU 8-Bit ATtiny AVR RISC 2KB Flash 3.3V/5V 20-Pin SOIC T/R
• Manufacturer: Atmel

112
ATtiny26(L)
Figure 58. Parallel Programming
Table 54. Pin Name Mapping
Note:
Table 55. Pin Values used to Enter Programming Mode
Signal Name in
Programming Mode
WR
XA0
XA1/BS2
PAGEL/BS1
OE
RDY/BSY
DATA
Pin
PAGEL/BS1
XA1/BS2
XA0
WR
1. The pin is used for two different control signals. In the description below, normally
(1)
only one of the signals is referred. E.g., “give BS1 a positive pulse” equals “give
PAGEL/BS1 a positive pulse”.
(1)
PAGEL/BS1
RDY/BSY
XA1/BS2
+12 V
XA0
WR
OE
Pin Name
PA7:0
PB0
PB1
PB2
PB3
PB5
PB6
PB0
PB1
PB2
PB3
PB5
PB6
RESET
GND
I/O
I/O
XTAL1/PB4
O
I
I
I
I
I
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
Function
Write Pulse (Active low)
XTAL Action Bit 0
XTAL Action Bit 1 multiplexed with Byte Select 2
(“0” selects low byte, “1” selects 2’nd high byte)
Program Memory and EEPROM data Page Load
multiplexed with Byte Select 1 (“0” selects low
byte, “1” selects high byte).
Output Enable (Active low)
0: Device is busy programming, 1: Device is ready
for new command
Bidirectional Data bus (Output when OE is low)
Symbol
PA7: PA0
AVCC
VCC
+5V
+5V
DATA
1477J–AVR–06/07
Value
0
0
0
0