ATTINY25-20SSNR Atmel, ATTINY25-20SSNR Datasheet - Page 232
![IC MCU AVR 2KB FLASH 20MHZ 8SOIC](/photos/18/29/182913/8-soic_sml.jpg)
ATTINY25-20SSNR
Manufacturer Part Number
ATTINY25-20SSNR
Description
IC MCU AVR 2KB FLASH 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY25-20SSNR
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
8-SOIC (0.154", 3.90mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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ATtiny25/45/85
19 Self-Programming the Flash ............................................................... 145
20 Memory Programming ......................................................................... 151
21 Electrical Characteristics .................................................................... 166
22 Typical Characteristics ........................................................................ 177
18.6
19.1
19.2
19.3
19.4
19.5
19.6
19.7
19.8
19.9
20.1
20.2
20.3
20.4
20.5
20.6
20.7
21.1
21.2
21.3
21.4
21.5
21.6
21.7
21.8
21.9
22.1
22.2
22.3
22.4
22.5
Register Description ......................................................................................144
Performing Page Erase by SPM ....................................................................145
Filling the Temporary Buffer (Page Loading) .................................................145
Performing a Page Write ...............................................................................146
Addressing the Flash During Self-Programming ...........................................146
EEPROM Write Prevents Writing to SPMCSR ..............................................147
Reading Lock, Fuse and Signature Data from Software ...............................147
Preventing Flash Corruption ..........................................................................149
Programming Time for Flash when Using SPM ............................................149
Register Description ......................................................................................149
Program And Data Memory Lock Bits ...........................................................151
Fuse Bytes .....................................................................................................152
Device Signature Imprint Table .....................................................................153
Page Size ......................................................................................................154
Serial Downloading ........................................................................................155
High-voltage Serial Programming ..................................................................158
High-voltage Serial Programming Algorithm .................................................159
Absolute Maximum Ratings* .........................................................................166
DC Characteristics .........................................................................................166
Speed ............................................................................................................168
Clock Characteristics .....................................................................................169
System and Reset Characteristics ................................................................170
Brown-Out Detection .....................................................................................171
ADC Characteristics ......................................................................................172
Serial Programming Characteristics ..............................................................175
High-voltage Serial Programming Characteristics .........................................176
Active Supply Current ....................................................................................177
Idle Supply Current ........................................................................................180
Supply Current of I/O modules ......................................................................182
Power-down Supply Current ..........................................................................183
Pin Pull-up .....................................................................................................184
2586M–AVR–07/10
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