ATTINY4313-MU Atmel, ATTINY4313-MU Datasheet - Page 268

• Manufacturer Part Number: ATTINY4313-MU
• Description: IC MCU AVR 4K FLASH 20QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY4313-MU

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 18
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Processor Series: ATtiny
• Core: AVR
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: SPI, USART, USI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 18
• Number Of Timers: 2
• Operating Supply Voltage: 3.3 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• Operating Temperature Range: - 40 C to + 85 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

iv
ATtiny2313A/4313
17 Analog Comparator ............................................................................. 167
18 debugWIRE On-chip Debug System .................................................. 169
19 Self-Programming the Flash ............................................................... 172
20 Memory Programming ......................................................................... 178
21 Electrical Characteristics .................................................................... 195
16.2
16.3
16.4
16.5
17.1
18.1
18.2
18.3
18.4
18.5
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
20.8
21.1
Overview ........................................................................................................155
Functional Descriptions .................................................................................156
Alternative USI Usage ...................................................................................162
Register Description ......................................................................................162
Register Description ......................................................................................167
Features ........................................................................................................169
Overview ........................................................................................................169
Physical Interface ..........................................................................................169
Software Break Points ...................................................................................170
Limitations of debugWIRE .............................................................................170
Register Description ......................................................................................171
Performing Page Erase by SPM ....................................................................172
Filling the Temporary Buffer (Page Loading) .................................................172
Performing a Page Write ...............................................................................173
Addressing the Flash During Self-Programming ...........................................173
EEPROM Write Prevents Writing to SPMCSR ..............................................174
Reading Lock Bits, Fuse Bits and Signature Data from Software .................174
Preventing Flash Corruption ..........................................................................176
Programming Time for Flash when Using SPM ............................................176
Register Description ......................................................................................176
Program And Data Memory Lock Bits ...........................................................178
Fuse Bits ........................................................................................................179
Device Signature Imprint Table .....................................................................180
Page Size ......................................................................................................181
Parallel Programming Parameters, Pin Mapping, and Commands ...............182
Parallel Programming ....................................................................................183
Serial Downloading ........................................................................................190
Serial Programming Pin Mapping ..................................................................191
Absolute Maximum Ratings* .........................................................................195
8246A–AVR–11/09