ATTINY84-20PU Atmel, ATTINY84-20PU Datasheet - Page 29
ATTINY84-20PU
Manufacturer Part Number
ATTINY84-20PU
Description
IC MCU AVR 8K FLASH 20MHZ 14-DIP
Manufacturer
Atmel
Series
AVR® ATtinyr
Specifications of ATTINY84-20PU
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
12
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 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
14-DIP (0.300", 7.62mm)
Processor Series
ATTINY8x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Operating Supply Voltage
2.7 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
Through Hole
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT
Minimum Operating Temperature
- 40 C
On-chip Adc
8-ch x 10-bit
Controller Family/series
AVR Tiny
No. Of I/o's
12
Eeprom Memory Size
512Byte
Ram Memory Size
512Byte
Cpu Speed
20MHz
No. Of Timers
2
Rohs Compliant
Yes
Package
14PDIP
Device Core
AVR
Family Name
ATtiny
Maximum Speed
20 MHz
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32770-1007 - ISP 4PORT ATMEL AVR MCU SPI/JTAGATAVRISP2 - PROGRAMMER AVR IN SYSTEM
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATTINY84-20PU
Manufacturer:
XILINX
Quantity:
25
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8006K–AVR–10/10
Table 6-9.
Notes:
The Oscillator can operate in three different modes, each optimized for a specific frequency
range. The operating mode is selected by fuses CKSEL3:1 as shown in
The CKSEL0 Fuse together with the SUT1:0 Fuses select the start-up times as shown in
6-10.
Table 6-10.
Notes:
CKSEL0
CKSEL3:1
100
0
0
0
0
1
1
1
1
101
110
111
(1)
1. This option should not be used with crystals, only with ceramic resonators.
1. When the BOD has been disabled by software, the wake-up time from sleep mode will be
2. These options should only be used when not operating close to the maximum frequency of the
3. These options are intended for use with ceramic resonators and will ensure frequency stability
approximately 60µs to ensure that the BOD is working correctly before the MCU continues
executing code.
device, and only if frequency stability at start-up is not important for the application. These
options are not suitable for crystals.
at start-up. They can also be used with crystals when not operating close to the maximum fre-
quency of the device, and if frequency stability at start-up is not important for the application.
SUT1:0
Crystal Oscillator Operating Modes
Start-up Times for the Crystal Oscillator Clock Selection
00
01
10
11
00
01
10
11
Frequency Range (MHz)
Start-up Time from
0.4 - 0.9
0.9 - 3.0
3.0 - 8.0
Power-down
8.0 -
258 CK
258 CK
1K CK
1K CK
1K CK
16K CK
16K CK
16K CK
(3)
(3)
(3)
(2)
(2)
(1)
Additional Delay
14CK + 64 ms
14CK + 64 ms
14CK + 64 ms
14CK + 4 ms
14CK + 4 ms
14CK + 4 ms
from Reset
Recommended C1 and C2 Value (pF)
14CK
14CK
ATtiny24/44/84
12 - 22
12 - 22
12 - 22
Recommended Usage
Ceramic resonator,
fast rising power
Ceramic resonator,
slowly rising power
Ceramic resonator,
BOD enabled
Ceramic resonator,
fast rising power
Ceramic resonator,
slowly rising power
Crystal Oscillator,
BOD enabled
Crystal Oscillator,
fast rising power
Crystal Oscillator,
slowly rising power
–
Table
6-9.
Table
29
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