ATTINY261-15MZ Atmel, ATTINY261-15MZ Datasheet - Page 42

• Manufacturer Part Number: ATTINY261-15MZ
• Description: MCU AVR 2K FLASH 15MHZ 32-QFN
• Manufacturer: Atmel
• Series: AVR® ATtinyr

Specifications of ATTINY261-15MZ

• Package / Case: 32-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Speed: 16MHz
• Number Of I /o: 16
• Eeprom Size: 128 x 8
• Core Processor: AVR
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Program Memory Size: 2KB (2K x 8)
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Connectivity: USI
• Core Size: 8-Bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

9.0.4
42
ATtiny261/ATtiny461/ATtiny861
External Reset
Figure 9-3.
Table 9-1.
Note:
An External Reset is generated by a low level on the RESET pin if enabled. Reset pulses longer
than the minimum pulse width (see
ate a reset, even if the clock is not running. Shorter pulses are not guaranteed to generate a
reset. When the applied signal reaches the Reset Threshold Voltage – V
edge, the delay counter starts the MCU after the Time-out period – t
Figure 9-4.
Symbol
V
V
V
V
V
POT
PORMAX
PORMIN
CCRR
RST
INTERNAL
TIME-OUT
RESET
RESET
1. Before rising, the supply has to be between
V
CC
CC
MCU Start-up, RESET Extended Externally
Power On Reset Specifications
Parameter
Power-on Reset Threshold Voltage (rising)
Power-on Reset Threshold Voltage (falling)
VCC Max. start voltage to ensure internal
Power-on Reset signal
VCC Min. start voltage to ensure internal
Power-on Reset signal
VCC Rise Rate to ensure Power-on Reset
External Reset During Operation
RESET Pin Threshold Voltage
V
POT
“System and Reset Characteristics” on page
V
RST
t
V
TOUT
PORMIN
(1)
and V
0.1 V
0.01
Min
-0.1
1.1
0.8
PORMAX
CC
TOUT
Typ
to ensure a Reset.
– has expired.
1.4
1.3
RST
– on its positive
0.9V
190) will gener-
Max
1.7
1.6
0.4
7753F–AVR–01/11
CC
V/ms
Unit
V
V
V
V
V