ATTINY20-EK1 Atmel, ATTINY20-EK1 Datasheet - Page 31

• Manufacturer Part Number: ATTINY20-EK1
• Description: KIT EVAL TOUCH ATTINY20
• Manufacturer: Atmel

Specifications of ATTINY20-EK1

• Sensor Type: *
• Sensing Range: *
• Interface: *
• Sensitivity: *
• Voltage - Supply: *
• Embedded: *
• Utilized Ic / Part: *
• Silicon Manufacturer: Atmel
• Core Architecture: AVR
• Core Sub-architecture: TinyAVR
• Kit Contents: Board
• Svhc: No SVHC (15-Dec-2010)
• Mcu Supported Families: ATtiny20
• Tool / Board Applications: Microcontroller
• Rohs Compliant: Yes
• Tool Type: Development Kit
• Cpu Core: AVR 8
• Data Bus Width: 8 bit
• Processor To Be Evaluated: ATtiny20
• Interface Type: Touch
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

8.2.2
8235B–AVR–04/11
External Reset
device is kept in reset after V
V
Figure 8-2.
Figure 8-3.
An External Reset is generated by a low level on the RESET pin if enabled. Reset pulses longer
than the minimum pulse width (see section
will generate a reset, even if the clock is not running. Shorter pulses are not guaranteed to gen-
erate a reset. When the applied signal reaches the Reset Threshold Voltage – V
positive edge, the delay counter starts the MCU after the time-out period – t
External reset is ignored during Power-on start-up count. After Power-on reset the internal reset
is extended only if RESET pin is low when the initial Power-on delay count is complete. See
ure 8-2
CC
TIME-OUT
INTERNAL
TIME-OUT
INTERNAL
decreases below the detection level.
RESET
RESET
RESET
RESET
V
V
CC
CC
and
Figure
MCU Start-up, RESET Tied to V
MCU Start-up, RESET Extended Externally
8-3.
V
V
POT
POT
CC
> t
t
TOUT
rise. The reset signal is activated again, without any delay, when
V
TOUT
RST
“System and Reset Characteristics” on page
V
CC
RST
t
TOUT
TOUT
ATtiny20
– has expired.
RST
– on its
175)
Fig-
31