ATTINY167-15MD Atmel, ATTINY167-15MD Datasheet - Page 72
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ATTINY167-15MD
Manufacturer Part Number
ATTINY167-15MD
Description
MCU AVR 16K FLASH 15MHZ 32-QFN
Manufacturer
Atmel
Series
AVR® ATtinyr
Datasheet
1.ATTINY167-15MD.pdf
(283 pages)
Specifications of ATTINY167-15MD
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, LIN, SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
16
Program Memory Size
16KB (8K 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 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 150°C
Package / Case
32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
Processor Series
ATTINY1x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Maximum Clock Frequency
16 MHz
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
For Use With
ATSTK600-SOIC - STK600 SOCKET/ADAPTER FOR SOIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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9.2.6
9.2.7
9.3
72
Alternate Port Functions
ATtiny87/ATtiny167
Digital Input Enable and Sleep Modes
Unconnected Pins
As shown in
Schmitt Trigger. The signal denoted SLEEP in the figure, is set by the MCU Sleep Controller in
Power-down or Power-save mode to avoid high power consumption if some input signals are
left floating, or have an analog signal level close to Vcc/2.
SLEEP is overridden for port pins enabled as external interrupt pins. If the external interrupt
request is not enabled, SLEEP is active also for these pins. SLEEP is also overridden by vari-
ous other alternate functions as described in
If a logic high level (“one”) is present on an asynchronous external interrupt pin configured as
“Interrupt on Rising Edge, Falling Edge, or Any Logic Change on Pin” while the external inter-
rupt is not enabled, the corresponding External Interrupt Flag will be set when resuming from
the above mentioned Sleep mode, as the clamping in these sleep mode produces the
requested logic change.
If some pins are unused, it is recommended to ensure that these pins have a defined level.
Even though most of the digital inputs are disabled in the deep sleep modes as described
above, floating inputs should be avoided to reduce current consumption in all other modes
where the digital inputs are enabled (Reset, Active mode and Idle mode).
The simplest method to ensure a defined level of an unused pin, is to enable the internal
pull-up. In this case, the pull-up will be disabled during reset. If low power consumption during
reset is important, it is recommended to use an external pull-up or pull-down. Connecting
unused pins directly to Vcc or GND is not recommended, since this may cause excessive cur-
rents if the pin is accidentally configured as an output.
Most port pins have alternate functions in addition to being general digital I/Os.
shows how the port pin control signals from the simplified
alternate functions. The overriding signals may not be present in all port pins, but the figure
serves as a generic description applicable to all port pins in the AVR microcontroller family.
Figure
9-2, the digital input signal can be clamped to ground at the input of the
“Alternate Port Functions” on page
Figure 9-2
can be overridden by
7728G–AVR–06/10
72.
Figure 9-6
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