ATTINY45-20XU Atmel, ATTINY45-20XU Datasheet - Page 25
![IC MCU AVR 4K FLASH 20MHZ 8TSSOP](/photos/6/83/68331/453-8-tssop_sml.jpg)
ATTINY45-20XU
Manufacturer Part Number
ATTINY45-20XU
Description
IC MCU AVR 4K FLASH 20MHZ 8TSSOP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY45-20XU
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
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 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-TSSOP
Processor Series
ATTINY4x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
256 B
Maximum Operating Temperature
+ 85 C
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
For Use With
ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIPATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
2586M–AVR–07/10
4. Added Figures:
5. Updated Figure:
6. Updated Tables:
7. Updated Code Example in Section:
8. Updated Bit Descriptions in:
9. Updated description of feature “EEPROM read may fail at low supply voltage / low
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clock frequency” in Sections:
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“Sleep Modes” on page 35
“Software BOD Disable” on page 36
“External Interrupts” on page 51
“Timer/Counter1 in PWM Mode” on page 101
“USI – Universal Serial Interface” on page 111
“Temperature Measurement” on page 137
“Reading Lock, Fuse and Signature Data from Software” on page 147
“Program And Data Memory Lock Bits” on page 151
“Fuse Bytes” on page 152
“Signature Bytes” on page 154
“Calibration Bytes” on page 154
“System and Reset Characteristics” on page 170
“Reset Pin Output Voltage vs. Sink Current (V
“Reset Pin Output Voltage vs. Sink Current (V
“Reset Pin Output Voltage vs. Source Current (V
“Reset Pin Output Voltage vs. Source Current (V
“Reset Logic” on page 41
“Start-up Times for Internal Calibrated RC Oscillator Clock” on page 28
“Start-up Times for Internal Calibrated RC Oscillator Clock (in ATtiny15 Mode)” on
page 28
“Start-up Times for the 128 kHz Internal Oscillator” on page 29
“Compare Mode Select in PWM Mode” on page 89
“Compare Mode Select in PWM Mode” on page 101
“DC Characteristics. T
“Calibration Accuracy of Internal RC Oscillator” on page 169
“ADC Characteristics” on page 172
“Write” on page 17
“MCUCR – MCU Control Register” on page 38
“Bits 7:6 – COM0A[1:0]: Compare Match Output A Mode” on page 80
“Bits 5:4 – COM0B[1:0]: Compare Match Output B Mode” on page 80
“Bits 2:0 – ADTS[2:0]: ADC Auto Trigger Source” on page 142
“SPMCSR – Store Program Memory Control and Status Register” on page
“Errata ATtiny25” on page 19
“Errata ATtiny45” on page 20
A
= -40°C to +85°C” on page 166
CC
CC
CC
CC
= 3V)” on page 189
= 5V)” on page 190
= 3V)” on page 190
= 5V)” on page 191
149.
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