ATTINY24-20SSUR Atmel, ATTINY24-20SSUR Datasheet - Page 234

• Manufacturer Part Number: ATTINY24-20SSUR
• Description: MCU AVR 2KB FLASH 20MHZ 14SOIC
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY24-20SSUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: USI
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 12
• 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 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

iv
ATtiny24/44/84
18 Self-Programming the Flash ............................................................... 153
19 Memory Programming ......................................................................... 159
20 Electrical Characteristics .................................................................... 174
21 Typical Characteristics ........................................................................ 185
17.2
17.3
17.4
17.5
17.6
18.1
18.2
18.3
18.4
18.5
18.6
18.7
18.8
18.9
19.1
19.2
19.3
19.4
19.5
19.6
19.7
20.1
20.2
20.3
20.4
20.5
20.6
20.7
20.8
20.9
21.1
Overview ........................................................................................................151
Physical Interface ..........................................................................................151
Software Break Points ...................................................................................152
Limitations of debugWIRE .............................................................................152
Register Description ......................................................................................152
Performing Page Erase by SPM ....................................................................153
Filling the Temporary Buffer (Page Loading) .................................................153
Performing a Page Write ...............................................................................154
Addressing the Flash During Self-Programming ...........................................154
EEPROM Write Prevents Writing to SPMCSR ..............................................155
Reading Lock, Fuse and Signature Data from Software ...............................155
Preventing Flash Corruption ..........................................................................157
Programming Time for Flash when Using SPM ............................................157
Register Description ......................................................................................157
Program And Data Memory Lock Bits ...........................................................159
Fuse Bytes .....................................................................................................160
Device Signature Imprint Table .....................................................................161
Page Size ......................................................................................................162
Serial Programming .......................................................................................163
High-voltage Serial Programming ..................................................................167
High-Voltage Serial Programming Algorithm .................................................168
Absolute Maximum Ratings* .........................................................................174
DC Characteristics .........................................................................................174
Speed ............................................................................................................175
Clock Characteristics .....................................................................................176
System and Reset Characteristics ................................................................177
Analog Comparator Characteristics ...............................................................179
ADC Characteristics ......................................................................................180
Serial Programming Characteristics ..............................................................183
High-Voltage Serial Programming Characteristics ........................................184
Supply Current of I/O Modules ......................................................................185
8006K–AVR–10/10