AT90PWM216 Atmel Corporation, AT90PWM216 Datasheet - Page 45

• Manufacturer Part Number: AT90PWM216
• Manufacturer: Atmel Corporation

Specifications of AT90PWM216

• Flash (kbytes): 16 Kbytes
• Pin Count: 24
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 12
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 19
• Ext Interrupts: 4
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 125
• Analog Comparators: 2
• Resistive Touch Screen: No
• Dac Channels: 1
• Dac Resolution (bits): 10
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 1
• Eeprom (bytes): 512
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 105
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 12
• Input Capture Channels: 1
• Pwm Channels: 7
• 32khz Rtc: No
• Calibrated Rc Oscillator: Yes

9.3
7710F–AVR–09/11
Power-on Reset
Figure 9-1.
Table 9-1.
Notes:
A Power-on Reset (POR) pulse is generated by an On-chip detection circuit. The detection level
is defined in
POR circuit can be used to trigger the start-up Reset, as well as to detect a failure in supply
voltage.
Symbol
V
V
V
V
t
CCRR
RST
POR
POT
RST
1. Values are guidelines only.
2. The Power-on Reset will not work unless the supply voltage has been below V
BODLEVEL [2..0]
Parameter
Power-on Reset Threshold
Voltage (rising)
Power-on Reset Threshold
Voltage (falling)
Minimum pulse width on RESET
Pin
V
internal Power-on RESET signal
V
Power-on RESET signal
RESET Pin Threshold Voltage
CC
CC
Table
Reset Logic
Reset Characteristics
start voltage to ensure
Rise Rate to ensure internal
9-1. The POR is activated whenever V
Pull-up Resistor
(2)
Spike
Filter
(1)
CKSEL[3:0]
Power-on Reset
Reset Circuit
SUT[1:0]
Brown-out
Watchdog
Oscillator
Generator
Circuit
Clock
Condition
CK
Register (MCUSR)
MCU Status
DATA BUS
Delay Counters
CC
AT90PWM216/316
0.2Vcc
is below the detection level. The
-0.05
Min.
0.3
GND
Typ.
400
1.4
1.3
TIMEOUT
0.85Vcc
POT
+0.05
Max.
2.3
2.3
(falling).
Units
V/ms
ns
V
V
V
V
45