ATTINY85-20SU Atmel, ATTINY85-20SU Datasheet - Page 182

• 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

22.3
182
Supply Current of I/O modules
ATtiny25/45/85
Figure 22-10. Idle Supply Current vs. V
The tables and formulas below can be used to calculate the additional current consumption for
the different I/O modules in Active and Idle mode. The enabling or disabling of the I/O modules
are controlled by the Power Reduction Register. See
page 39
Table 22-1.
Table 22-2.
PRR bit
PRTIM1
PRTIM0
PRUSI
PRADC
PRR bit
PRTIM1
PRTIM0
PRUSI
PRADC
for details.
0,09
0,08
0,07
0,06
0,05
0,04
0,03
0,02
0,01
0,1
0
1,5
Additional Current Consumption for the different I/O modules (absolute values)
Additional Current Consumption (percentage) in Active and Idle mode
Additional Current consumption
compared to Active with external clock
(see
Figure 22-1
V
2
CC
= 2V, f = 1 MHz
45 uA
15 uA
5 uA
5 uA
2,5
IDLE SUPPLY CURRENT vs. V
and
INTERNAL RC OSCILLATOR, 128 kHz
20 %
2 %
2 %
5 %
Figure
3
CC
(Internal RC Oscillator, 128 kHz)
22-2)
V
CC
3,5
V
(V)
Typical numbers
CC
= 3V, f = 4 MHz
300 uA
30 uA
25 uA
85 uA
4
“PRR – Power Reduction Register” on
Additional Current consumption
compared to Idle with external clock
(see
CC
Figure 22-6
4,5
5
V
80 %
10 %
10 %
25 %
and
CC
= 5V, f = 8 MHz
Figure
1100 uA
5,5
110 uA
100 uA
340 uA
-40 ˚C
2586M–AVR–07/10
25 ˚C
85 ˚C
22-7)