ATTINY84-20PU Atmel, ATTINY84-20PU Datasheet - Page 160
![IC MCU AVR 8K FLASH 20MHZ 14-DIP](/photos/7/39/73953/313-14-dip_sml.jpg)
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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19.2
160
Fuse Bytes
ATtiny24/44/84
The ATtiny24/44/84 have three fuse bytes.
describe the functionality of all the fuses and how they are mapped into the fuse bytes. Note that
the fuses are read as logical zero, “0”, if they are programmed.
Table 19-3.
Notes:
Table 19-4.
Notes:
Fuse Extended Byte
SELFPRGEN
Fuse High Byte
RSTDISBL
DWEN
SPIEN
WDTON
EESAVE
BODLEVEL2
BODLEVEL1
BODLEVEL0
(2)
(3)
1. Enables SPM instruction. See
1. See
2. DWEN must be unprogrammed when Lock Bit security is required. See
3. The SPIEN Fuse is not accessible in SPI programming mode.
4. Programming this fues will disable the Watchdog Timer Interrupt. See
5. See
(4)
Fuses. After programming the RSTDISBL fuse, high-voltage serial programming must be used
to change fuses and allow further programming.
Memory Lock Bits” on page
a Function of the Fuse Settings of WDTON” on page 43
(1)
(5)
(5)
(5)
(1)
Fuse Extended Byte
Fuse High Byte
“Alternate Functions of Port B” on page 65
Table 20-7 on page 179
Bit No
7
6
6
4
3
2
1
0
Bit No
7
6
5
4
3
2
1
0
Description
External Reset disable
DebugWIRE Enable
Enable Serial Program and Data
Downloading
Watchdog Timer always on
EEPROM memory is preserved through
the Chip Erase
Brown-out Detector trigger level
Brown-out Detector trigger level
Brown-out Detector trigger level
Description
-
-
-
-
-
-
-
Self-Programming Enable
159.
for BODLEVEL Fuse decoding.
“Self-Programming the Flash” on page
Table
19-3,
for description of RSTDISBL and DWEN
Table 19-4
for details.
Default Value
1 (unprogrammed)
1 (unprogrammed)
0 (programmed, SPI prog.
enabled)
1 (unprogrammed)
1 (unprogrammed,
EEPROM not preserved)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
and
Default Value
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
1 (unprogrammed)
153.
“WDT Configuration as
“Program And Data
Table 19-5
8006K–AVR–10/10
briefly
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