ATTINY40-MMHR Atmel, ATTINY40-MMHR Datasheet - Page 27
![no-image](/images/manufacturer_photos/0/0/78/atmel_sml.jpg)
ATTINY40-MMHR
Manufacturer Part Number
ATTINY40-MMHR
Description
MCU AVR 4KB FLASH 12MHZ 3X3 QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY40-MMHR.pdf
(216 pages)
Specifications of ATTINY40-MMHR
Core Processor
AVR
Core Size
8-Bit
Speed
12MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
18
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 27 of 216
- Download datasheet (7Mb)
7. Power Management and Sleep Modes
7.1
7.1.1
8263A–AVR–08/10
Sleep Modes
Idle Mode
The high performance and industry leading code efficiency makes the AVR microcontrollers an
ideal choise for low power applications. In addition, sleep modes enable the application to shut
down unused modules in the MCU, thereby saving power. The AVR provides various sleep
modes allowing the user to tailor the power consumption to the application’s requirements.
Figure 6-1 on page 20
The figure is helpful in selecting an appropriate sleep mode.
modes and their wake up sources.
Table 7-1.
Notes:
To enter any of the four sleep modes, the SE bits in MCUCR must be written to logic one and a
SLEEP instruction must be executed. The SM[2:0] bits in the MCUCR register select which
sleep mode (Idle, ADC Noise Reduction, Standby or Power-down) will be activated by the
SLEEP instruction. See
If an enabled interrupt occurs while the MCU is in a sleep mode, the MCU wakes up. The MCU
is then halted for four cycles in addition to the start-up time, executes the interrupt routine, and
resumes execution from the instruction following SLEEP. The contents of the Register File and
SRAM are unaltered when the device wakes up from sleep. If a reset occurs during sleep mode,
the MCU wakes up and executes from the Reset Vector.
Note that if a level triggered interrupt is used for wake-up the changed level must be held for
some time to wake up the MCU (and for the MCU to enter the interrupt service routine). See
“External Interrupts” on page 41
When bits SM[2:0] are written to 000, the SLEEP instruction makes the MCU enter Idle mode,
stopping the CPU but allowing the analog comparator, timer/counters, watchdog, TWI, SPI and
the interrupt system to continue operating. This sleep mode basically halts clk
while allowing the other clocks to run.
Idle mode enables the MCU to wake up from external triggered interrupts as well as internal
ones like the timer overflow. If wake-up from the analog comparator interrupt is not required, the
Sleep Mode
Idle
ADC Noise Reduction
Standby
Power-down
1. For INT0, only level interrupt.
2. Only TWI address match interrupt.
Active Clock Domains and Wake-up Sources in Different Sleep Modes.
presents the different clock systems and their distribution in ATtiny40.
Table 7-2
Active Clock Domains
for details.
for a summary.
X
X
X
Oscillators
X
X
X
Table 7-1
X
X
X
X
(1)
(1)
(1)
shows the different sleep
Wake-up Sources
X
X
X
X
X
X
X
X
(2)
(2)
(2)
CPU
and clk
X
X
NVM
X
27
,
Related parts for ATTINY40-MMHR
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![ATtiny40](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATTINY40-SU](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 20SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY40-XU](/photos/39/70/397036/tssop20_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 20TSSOP
Manufacturer:
Atmel
Datasheet:
![ATTINY40-SUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 20SOIC
Manufacturer:
Atmel
Datasheet:
![ATTINY40-XUR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4K FLASH 20TSSOP
Manufacturer:
Atmel
Datasheet:
![ATTINY40-MMH](/photos/30/99/309923/qfn-20_tmb.jpg)
Part Number:
Description:
IC MCU AVR 4KB FLASH 12MHZ 20QFN
Manufacturer:
Atmel
Datasheet:
![ATtiny4](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![ATTINY4-MAH](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
Microcontrollers (MCU) 512B FL 32B SRAM TIMER ATTINY4 12MHz
Manufacturer:
Atmel
![ATTINY4-TSHR](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 512B FLASH SOT-23-6
Manufacturer:
Atmel
Datasheet:
![ATTINY4-TS8R](/images/manufacturer_photos/0/0/78/atmel_tmb.jpg)
Part Number:
Description:
IC MCU AVR 512B FLASH SOT-23-6
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: