ATTINY25-20SUR Atmel, ATTINY25-20SUR Datasheet - Page 157

• Manufacturer Part Number: ATTINY25-20SUR
• Description: MCU AVR 2KB FLASH 20MHZ 8SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY25-20SUR

• 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: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 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: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

20.5.2
Table 20-11. Minimum Wait Delay Before Writing the Next Flash or EEPROM Location
Table 20-12. Serial Programming Instruction Set
2586M–AVR–07/10
Symbol
t
t
t
t
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
Write EEPROM Memory
Write EEPROM Memory Page (page access)
Write Lock bits
Write Fuse bits
Write Fuse High bits
Write Extended Fuse Bits
WD_FLASH
WD_EEPROM
WD_ERASE
WD_FUSE
Serial Programming Instruction set
(6)
Table 20-12 on page 157
(1)
Byte 1
$AC
$AC
$C2
$AC
$AC
$AC
$AC
$4D
$C1
$A0
$4C
$C0
$F0
$48
$40
$28
$20
$58
$30
$50
$58
$50
$38
and
Minimum Wait Delay
Figure 20-2 on page 158
4.5 ms
4.0 ms
9.0 ms
4.5 ms
adr MSB
adr MSB
adr MSB
adr MSB
adr MSB
Byte 2
$E0
$A0
$A8
$A4
$53
$80
$00
$00
$00
$00
$00
$00
$00
$08
$08
$00
$00
$00
Instruction Format
describes the Instruction set.
Extended adr
0000 000aa
0000 000aa
00aa aaaa
00aa aa00
00aa aaaa
adr LSB
adr LSB
adr LSB
adr LSB
adr LSB
Byte 3
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
$00
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
data byte in
data byte in
data byte in
data byte in
data byte in
Byte4
$00
$00
$00
$00
$00
157