ATtiny25 Automotive Atmel Corporation, ATtiny25 Automotive Datasheet - Page 141

• Manufacturer Part Number: ATtiny25 Automotive
• Manufacturer: Atmel Corporation

Specifications of ATtiny25 Automotive

• Flash (kbytes): 2 Kbytes
• Pin Count: 8
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 4
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 6
• Ext Interrupts: 6
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 4
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 0.12
• Eeprom (bytes): 128
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 125
• 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: 5
• Pwm Channels: 6
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

7598H–AVR–07/09
Table 21-10. Serial Programming Instruction Set
Note:
Instruction
Load EEPROM
Memory Page (page
access)
Write EEPROM
Memory Page (page
access)
Read Lock bits
Write Lock bits
Read Signature Byte
Write Fuse bits
Write Fuse High bits
Write Extended Fuse
Bits
Read Fuse bits
Read Fuse High bits
Read Extended Fuse
Bits
Read Calibration Byte
Poll RDY/BSY
a = address high bits, b = address low bits, H = 0 - Low byte, 1 - High Byte, o = data out, i = data
in, x = don’t care
Byte 1
1100
0001
1100
0010
0101
1000
1010
1100
0011
0000
1010
1100
1010
1100
1010
1100
0101
0000
0101
1000
0101
0000
0011
1000
1111
0000
Instruction Format
Byte 2
0000
0000
00xx
xxxx
0000
0000
111x
xxxx
000x
xxxx
1010
0000
1010
1000
1010
0100
0000
0000
0000
1000
0000
1000
000x
xxxx
0000
0000
Byte 3
0000
00bb
xxbb
bb00
xxxx
xxxx
xxxx
xxxx
xxxx
xxbb
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
xxxx
0000
0000
xxxx
xxxx
Byte4
iiii
iiii
xxxx
xxxx
xxoo
oooo
11ii
iiii
oooo
oooo
iiii
iiii
iiii
iiii
xxxx
xxxi
oooo
oooo
oooo
oooo
oooo
oooo
oooo
oooo
xxxx
xxxo
ATtiny25/45/85
Operation
Load data i to EEPROM
memory page buffer. After
data is loaded, program
EEPROM page.
Write EEPROM page at
address b.
Read Lock bits. “0” =
programmed, “1” =
unprogrammed. See
21-1 on page 134
Write Lock bits. Set bits = “0”
to program Lock bits. See
Table 21-1 on page 134
details.
Read Signature Byte o at
address b.
Set bits = “0” to program, “1”
to unprogram. See
on page 136
Set bits = “0” to program, “1”
to unprogram. See
on page 135
Set bits = “0” to program, “1”
to unprogram. See
on page 135
Read Fuse bits. “0” =
programmed, “1” =
unprogrammed. See
21-5 on page 136
Read Fuse High bits. “0” =
pro-grammed, “1” =
unprogrammed. See
21-4 on page 135
Read Extended Fuse bits. “0”
= pro-grammed, “1” =
unprogrammed. See
21-3 on page 135
Read Calibration Byte
If o = “1”, a programming
operation is still busy. Wait
until this bit returns to “0”
before applying another
command.
for details.
for details.
for details.
for details.
for details.
for details.
for details.
Table 21-5
Table 21-4
Table 21-3
Table
Table
Table
Table
for
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