ATTINY45-20SI Atmel, ATTINY45-20SI Datasheet - Page 218
ATTINY45-20SI
Manufacturer Part Number
ATTINY45-20SI
Description
IC AVR MCU 4K 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY45-20SI
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-SOIC (5.3mm Width), 8-SOP, 8-SOEIAJ
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY45-20SI
Manufacturer:
ATMEL
Quantity:
126
- Current page: 218 of 236
- Download datasheet (5Mb)
27.2
27.2.1
27.2.2
27.2.3
218
Errata ATtiny45
ATtiny25/45/85
Rev F and G
Rev D and E
Rev B and C
The revision letter in this section refers to the revision of the ATtiny45 device.
No known errata
•
1. EEPROM read may fail at low supply voltage / low clock frequency
•
•
•
•
1. PLL not locking
2. EEPROM read from application code does not work in Lock Bit Mode 3
3. EEPROM read may fail at low supply voltage / low clock frequency
EEPROM read may fail at low supply voltage / low clock frequency
PLL not locking
EEPROM read from application code does not work in Lock Bit Mode 3
EEPROM read may fail at low supply voltage / low clock frequency
Timer Counter 1 PWM output generation on OC1B- XOC1B does not work correctly
Trying to read EEPROM at low clock frequencies and/or low supply voltage may result in
invalid data.
Problem Fix/Workaround
Do not use the EEPROM when clock frequency is below 1 MHz and supply voltage is below
2V. If operating frequency can not be raised above 1 MHz then supply voltage should be
more than 3V. Similarly, if supply voltage can not be raised above 2V then operating fre-
quency should be more than 2 MHz.
This feature is known to be temperature dependent but it has not been characterised.
Guidelines are given for room temperature, only.
When at frequencies below 6.0 MHz, the PLL will not lock
Problem fix / Workaround
When using the PLL, run at 6.0 MHz or higher.
When the Memory Lock Bits LB2 and LB1 are programmed to mode 3, EEPROM read does
not work from the application code.
Problem Fix/Work around
Do not set Lock Bit Protection Mode 3 when the application code needs to read from
EEPROM.
Trying to read EEPROM at low clock frequencies and/or low supply voltage may result in
invalid data.
Problem Fix/Workaround
Do not use the EEPROM when clock frequency is below 1 MHz and supply voltage is below
2V. If operating frequency can not be raised above 1 MHz then supply voltage should be
2586M–AVR–07/10
Related parts for ATTINY45-20SI
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU 4K 20MHZ 8DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4K FLASH 15MHZ 8-SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 4K FLASH 20MHZ 8TSSOP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC AVR MCU FLASH 4K 20MHZ 20MLF
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 8TSSOP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
IC MCU AVR 4KB FLASH 20MHZ 8SOIC
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU AVR 4KB FLASH 20MHZ 20QFN
Manufacturer:
Atmel
Datasheet: