ATTINY85-20MU Atmel, ATTINY85-20MU Datasheet - Page 164

• Manufacturer Part Number: ATTINY85-20MU
• Description: IC MCU AVR 8K FLASH 20MHZ 20-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY85-20MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-MLF®, QFN
• Processor Series: ATTINY8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: USI
• Maximum Clock Frequency: 10 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 2
• Operating Supply Voltage: 2.7 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEM
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 20-16. High-voltage Serial Programming Instruction Set for ATtiny25/45/85 (Continued)
164
Instruction
Write
EEPROM
Byte
Load “Read
EEPROM”
Command
Read
EEPROM
Byte
Write Fuse
Low Bits
Write Fuse
High Bits
Write Fuse
Extended Bits
Write Lock
Bits
Read Fuse
Low Bits
Read Fuse
High Bits
Read Fuse
Extended Bits
Read Lock
Bits
Read
Signature
Bytes
Read
Calibration
Byte
Load “No
Operation”
Command
ATtiny25/45/85
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
SDI
SII
SDO
0_bbbb_bbbb_00
0_bbbb_bbbb_00
0_0000_1100_00
0_0000_0000_00
0_0110_0100_00
0_0000_0011_00
0_0100_1100_00
0_0000_1100_00
0_0100_0000_00
0_0100_1100_00
0_0100_0000_00
0_0100_1100_00
0_0100_0000_00
0_0100_1100_00
0_0010_0000_00
0_0100_1100_00
0_0000_0100_00
0_0100_1100_00
0_0000_0100_00
0_0100_1100_00
0_0000_0100_00
0_0100_1100_00
0_0000_0100_00
0_0100_1100_00
0_0000_1000_00
0_0100_1100_00
0_0000_1000_00
0_0100_1100_00
0_0000_0000_00
0_0100_1100_00
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
Instr.1/5
0_IHGF_EDCB_00
0_A987_6543_00
0_0000_00bb_00
0_aaaa_aaaa_00
0_0001_1100_00
0_0000_0000_00
0_aaaa_aaaa_00
0_0001_1100_00
0_0010_1100_00
0_0010_1100_00
0_0000_000J_00
0_0010_1100_00
0_0000_0021_00
0_0010_1100_00
0_0000_0000_00
0_0110_1000_00
0_0000_0000_00
0_0000_0000_00
0_0110_1010_00
0_0000_0000_00
0_0000_1100_00
0_0000_0000_00
0_0000_1100_00
0_0110_1100_00
0_0111_1010_00
0_0111_1000_00
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
Instr.2/6
Instruction Format
I_HGFE_DCBx_xx
0_eeee_eeee_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
A_9876_543x_xx
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0010_1100_00
0_0110_1000_00
0_0110_0100_00
0_0111_0100_00
0_0110_0110_00
0_0110_0100_00
0_0110_1100_00
0_0110_1000_00
0_0111_1000_00
0_0111_1110_00
0_0110_1110_00
0_0111_1100_00
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxJx_xx
x_xxxx_x21x_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
Instr.3
q_qqqq_qqq0_00
q_qqqq_qqqx_xx
p_pppp_pppx_xx
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0000_0000_00
0_0110_1101_00
0_0110_1100_00
0_0110_1100_00
0_0111_1100_00
0_0110_1110_00
0_0110_1100_00
0_0110_1100_00
0_0111_1100_00
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
x_xxxx_xxxx_xx
Instr.4
Operation Remarks
Repeat Instr. 1 - 6 for each
new address. Wait after Instr.
6 until SDO goes high.
Instr. 6
Enter EEPROM Read mode.
Repeat Instr. 1, 3 - 4 for each
new address. Repeat Instr. 2
for a new 256 byte page.
Wait after Instr. 4 until SDO
goes high. Write A - 3 = “0” to
program the Fuse bit.
Wait after Instr. 4 until SDO
goes high. Write I - B = “0” to
program the Fuse bit.
Wait after Instr. 4 until SDO
goes high. Write J = “0” to
program the Fuse bit.
Wait after Instr. 4 until SDO
goes high. Write 2 - 1 = “0” to
program the Lock bit.
Reading A - 3 = “0” means
the Fuse bit is programmed.
Reading I - B = “0” means the
Fuse bit is programmed.
Reading J = “0” means the
Fuse bit is programmed.
Reading 2, 1 = “0” means the
Lock bit is programmed.
Repeats Instr 2 4 for each
signature byte address.
2586M–AVR–07/10
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