ATTINY20-MMH Atmel, ATTINY20-MMH Datasheet - Page 36
![MCU AVR 2KB FLASH 12MHZ 20QFN](/photos/30/99/309958/qfn-16_sml.jpg)
ATTINY20-MMH
Manufacturer Part Number
ATTINY20-MMH
Description
MCU AVR 2KB FLASH 12MHZ 20QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY20-EK1.pdf
(224 pages)
Specifications of ATTINY20-MMH
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
12
Program Memory Size
2KB (1K x 16)
Program Memory Type
FLASH
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Processor Series
ATtiny
Core
AVR
Data Bus Width
8 bit
Data Ram Size
128 B
Interface Type
SPI, TWI
Maximum Clock Frequency
12 MHz
Number Of Programmable I/os
12
Number Of Timers
2
Operating Supply Voltage
3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATTINY20-MMHR
Manufacturer:
ATMEL
Quantity:
20 000
- Current page: 36 of 224
- Download datasheet (6Mb)
36
ATtiny20
Watchdog System Reset mode. If the interrupt is not executed before the next time-out, a Sys-
tem Reset will be applied.
Table 8-2.
Note:
• Bit 4 – Res: Reserved Bit
This bit is reserved and will always read as zero.
• Bit 3 – WDE: Watchdog System Reset Enable
WDE is overridden by WDRF in RSTFLR. This means that WDE is always set when WDRF is
set. To clear WDE, WDRF must be cleared first. This feature ensures multiple resets during con-
ditions causing failure, and a safe start-up after the failure.
• Bits 5, 2:0 – WDP[3:0]: Watchdog Timer Prescaler 3 - 0
The WDP[3:0] bits determine the Watchdog Timer prescaling when the Watchdog Timer is run-
ning. The different prescaling values and their corresponding time-out periods are shown in
Table 8-3 on page
Table 8-3.
WDTON
WDP3
0
0
0
0
0
0
0
0
1
1
1
1
1
1
0
1. WDTON configuration bit set to “0“ means programmed and “1“ means unprogrammed.
(1)
WDP2
0
0
0
0
1
1
1
1
0
0
WDE
Watchdog Timer Configuration
Watchdog Timer Prescale Select
0
0
1
1
x
36.
WDP1
WDIE
0
0
1
1
0
0
1
1
0
0
0
1
0
1
x
WDP0
Mode
Stopped
Interrupt
System Reset
Interrupt and System Reset
System Reset
0
1
0
1
0
1
0
1
0
1
1024K (1048576) cycles
WDT Oscillator Cycles
128K (131072) cycles
256K (262144) cycles
512K (524288) cycles
16K (16384) cycles
32K (32768) cycles
64K (65536) cycles
2K (2048) cycles
4K (4096) cycles
8K (8192) cycles
Number of
Action on Time-out
None
Interrupt
Reset
Interrupt, then go to System Reset Mode
Reset
Typical Time-out
at V
0.125 s
16 ms
32 ms
64 ms
0.25 s
CC
0.5 s
1.0 s
2.0 s
4.0 s
8.0 s
8235B–AVR–04/11
= 5.0V
Related parts for ATTINY20-MMH
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATtiny20](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATTINY20-EK1](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
KIT EVAL TOUCH ATTINY20
Manufacturer:
Atmel
Datasheet:
![ATTINY20-SSU](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 2KB FLASH 12MHZ 14SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY20-XU](/photos/39/70/397027/tssop14_tmb.jpg)
Part Number:
Description:
MCU AVR 2KB FLASH 12MHZ 14TSSOP
Manufacturer:
Atmel
Datasheet:
![ATTINY20-XUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 2KB FLASH 12MHZ 14TSSOP
Manufacturer:
Atmel
Datasheet:
![ATTINY20-MMHR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 2KB FLASH 12MHZ 20QFN
Manufacturer:
Atmel
Datasheet:
![ATTINY20-CCU](/photos/40/18/401808/ufbga-15_tmb.jpg)
Part Number:
Description:
MCU AVR 2KB FLASH 12MHZ 15UFBGA
Manufacturer:
Atmel
Datasheet:
![ATTINY20-CCUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
MCU AVR 2KB FLASH 12MHZ 15UFBGA
Manufacturer:
Atmel
Datasheet:
![ATTINY20-SSUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 2K FLASH 14SOIC
Manufacturer:
Atmel
Datasheet:
![ATSTK600](/photos/9/20/92038/atstk600_tmb.jpg)
Part Number:
Description:
DEV KIT FOR AVR/AVR32
Manufacturer:
Atmel
Datasheet:
![U641B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
INTERVAL AND WIPE/WASH WIPER CONTROL IC WITH DELAY
Manufacturer:
ATMEL Corporation
Datasheet:
![U4082B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Low-Voltage Voice-Switched IC for Hands-Free Operation
Manufacturer:
ATMEL Corporation
Datasheet:
![U4089B](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
MONOLITHIC INTEGRATED FEATUREPHONE CIRCUIT
Manufacturer:
ATMEL Corporation
Datasheet:
![U4255BM-M](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
AM-FM Receiver IC U4255BM-M
Manufacturer:
ATMEL Corporation
Datasheet: