ATtiny26 Atmel Corporation, ATtiny26 Datasheet - Page 110

• Manufacturer Part Number: ATtiny26
• Manufacturer: Atmel Corporation

Specifications of ATtiny26

• Flash (kbytes): 2 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 11
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 11
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: NO
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Pwm Channels: 4
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

110
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 only one of
(1)
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
Pin Name
+12 V
PA7:0
XA0
WR
PB0
PB1
PB2
PB3
PB5
PB6
OE
I/O
I/O
O
I
I
I
I
I
Prog_enable[3]
Prog_enable[2]
Prog_enable[1]
Prog_enable[0]
PB0
PB1
PB2
PB3
PB5
RESET
GND
PB6
XTAL1/PB4
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
Value
0
0
0
0
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