ATTINY26-16PI Atmel, ATTINY26-16PI Datasheet - Page 115

• Manufacturer Part Number: ATTINY26-16PI
• Description: IC AVR MCU 2K 16MHZ IND 20-DIP
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY26-16PI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 16
• Program Memory Size: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Programming the
EEPROM
1477K–AVR–08/10
Figure 60. Programming the Flash Waveforms
Note:
The EEPROM is organized in pages, see Table 53 on page 109. When programming the
EEPROM, the program data is latched into a page buffer. This allows one page of data to be
programmed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to “Programming the Flash” on page 113 for details on Command, Address and
Data loading):
1. A: Load Command “0001 0001”.
2. B: Load Address Low Byte ($00 - $FF).
3. C: Load Data ($00 - $FF).
J: Repeat 2 and 3 until the entire buffer is filled
K: Program EEPROM page
1. Set BS1 to “0”.
2. Give WR a negative pulse. This starts programming of the EEPROM page. RDY/BSY
3. Wait until to RDY/BSY goes high before programming the next page.
goes low.
(See Figure 61 for signal waveforms.)
RESET +12V
PAGEL/BS1
RDY/BSY
XA1/BS2
1. “XX” is don’t care. The letters refer to the programming description above.
XTAL1
DATA
XA0
WR
OE
$10
A
ADDR. LOW
B
DATA LOW DATA HIGH ADDR. LOW DATA LOW DATA HIGH
C
D
B
(1)
C
E
D
ADDR. HIGH
F
G
XX
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