ATTINY85-20SU Atmel, ATTINY85-20SU Datasheet - Page 81
![IC AVR MCU 8K 20MHZ 8SOIC](/photos/6/50/65032/453-8-soic_sml.jpg)
ATTINY85-20SU
Manufacturer Part Number
ATTINY85-20SU
Description
IC AVR MCU 8K 20MHZ 8SOIC
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY85-20SU
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
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 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
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
USI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
6
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
4-ch x 10-bit
For Use With
ATSTK600-DIP40 - STK600 SOCKET/ADAPTER 40-PDIPATAVRBC100 - REF DESIGN KIT BATTERY CHARGER770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAG770-1004 - ISP 4PORT FOR ATMEL AVR MCU SPIATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY85-20SU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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2586M–AVR–07/10
Table 11-3
mode.
Table 11-3.
Note:
Table 11-4
correct PWM mode.
Table 11-4.
Note:
• Bits 3:2 – Res: Reserved Bits
These bits are reserved bits in the ATtiny25/45/85 and will always read as zero.
• Bits 1:0 – WGM0[1:0]: Waveform Generation Mode
Combined with the WGM02 bit found in the TCCR0B Register, these bits control the counting
sequence of the counter, the source for maximum (TOP) counter value, and what type of wave-
form generation to be used, see
unit are: Normal mode (counter), Clear Timer on Compare Match (CTC) mode, and two types of
Pulse Width Modulation (PWM) modes (see
COM0A1
COM0B1
COM0A1
COM0B1
0
0
1
1
0
0
1
1
1. A special case occurs when OCR0A or OCR0B equals TOP and COM0A1/COM0B1 is set. In
1. A special case occurs when OCR0A or OCR0B equals TOP and COM0A1/COM0B1 is set. In
shows the COM0x[1:0] bit functionality when the WGM0[2:0] bits are set to fast PWM
this case, the compare match is ignored, but the set or clear is done at BOTTOM. See
PWM Mode” on page 75
this case, the Compare Match is ignored, but the set or clear is done at TOP. See
rect PWM Mode” on page 77
shows the COM0x[1:0] bit functionality when the WGM0[2:0] bits are set to phase
Compare Output Mode, Fast PWM Mode
Compare Output Mode, Phase Correct PWM Mode
COM0A0
COM0B0
COM0A0
COM0B0
0
1
0
1
0
1
0
1
Description
Normal port operation, OC0A/OC0B disconnected.
Reserved
Clear OC0A/OC0B on Compare Match, set OC0A/OC0B at BOTTOM
(non-inverting mode)
Set OC0A/OC0B on Compare Match, clear OC0A/OC0B at BOTTOM
(inverting mode)
Description
Normal port operation, OC0A/OC0B disconnected.
Reserved
Clear OC0A/OC0B on Compare Match when up-counting.
Set OC0A/OC0B on Compare Match when down-counting.
Set OC0A/OC0B on Compare Match when up-counting.
Clear OC0A/OC0B on Compare Match when down-counting.
Table
for more details.
for more details.
11-5. Modes of operation supported by the Timer/Counter
“Modes of Operation” on page
(1)
(1)
74).
“Phase Cor-
“Fast
81
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