ATtiny87 Atmel Corporation, ATtiny87 Datasheet - Page 240

• Manufacturer Part Number: ATtiny87
• Manufacturer: Atmel Corporation

Specifications of ATtiny87

• Flash (kbytes): 8 Kbytes
• Pin Count: 20
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 16
• Ext Interrupts: 16
• Usb Speed: No
• Usb Interface: No
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Lin: 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: Yes
• Crypto Engine: No
• Sram (kbytes): 0.5
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 2
• Output Compare Channels: 3
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

21.8.2
Table 21-15. Serial Programming Instruction Set
240
Instruction/Operation
Programming Enable
Chip Erase (Program Memory/EEPROM)
Poll RDY/BSY
Load Instructions
Load Extended Address byte
Load Program Memory Page, High byte
Load Program Memory Page, Low byte
Load EEPROM Memory Page (page access)
Read Instructions
Read Program Memory, High byte
Read Program Memory, Low byte
Read EEPROM Memory
Read Lock bits
Read Signature Byte
Read Fuse bits
Read Fuse High bits
Read Extended Fuse Bits
Read Calibration Byte
Write Instructions
Write Program Memory Page
ATtiny87/ATtiny167
Serial Programming Instruction set
(6)
(1)
Table 21-14. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Table 21-15 on page 240
7. At the end of the programming session, RESET can be set high to commence normal
8. Power-off sequence (if needed):
operation.
Set RESET to “1”.
Turn V
CC
power off.
Byte 1
t
0xAC
0xAC
0x4D
0xC1
0xA0
0x4C
0xF0
0x48
0x40
0x28
0x20
0x58
0x30
0x50
0x58
0x50
0x38
WD_EEPROM
t
t
WD_ERASE
t
WD_FLASH
Symbol
WD_FUSE
and
Figure 21-8 on page 242
Minimum Wait Delay
4.5 ms
4.0 ms
9.0 ms
4.5 ms
add. MSB
add. MSB
add. MSB
add. MSB
add. MSB
Byte 2
0x53
0x80
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x08
0x08
0x00
Instruction Format
describes the Instruction set
Extended add.
0000 000aa
0000 000aa
00aa aaaa
add. LSB
add. LSB
add. LSB
add. LSB
add. LSB
Byte 3
0x00
0x00
0x00
0x00
0x00
0x00
0x00
0x00
b
high data byte out
low data byte out
high data byte in
low data byte in
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte out
data byte in
8265B–AVR–09/10
Byte4
0x00
0x00
0x00
0x00