ATmega16HVA Atmel Corporation, ATmega16HVA Datasheet - Page 42
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ATmega16HVA
Manufacturer Part Number
ATmega16HVA
Description
Manufacturer
Atmel Corporation
Specifications of ATmega16HVA
Flash (kbytes)
16 Kbytes
Pin Count
28
Max. Operating Frequency
4 MHz
Cpu
8-bit AVR
# Of Touch Channels
3
Hardware Qtouch Acquisition
No
Max I/o Pins
6
Ext Interrupts
3
Usb Speed
No
Usb Interface
No
Spi
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
6
Adc Resolution (bits)
12
Adc Speed (ksps)
1.9
Resistive Touch Screen
No
Temp. Sensor
Yes
Crypto Engine
No
Sram (kbytes)
0.5
Eeprom (bytes)
256
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-20 to 85
I/o Supply Class
1.8 to 9.0
Operating Voltage (vcc)
1.8 to 9.0
Fpu
No
Mpu / Mmu
no / no
Timers
2
Output Compare Channels
4
Input Capture Channels
2
32khz Rtc
No
Calibrated Rc Oscillator
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATmega16HVA-4TU
Manufacturer:
Atmel
Quantity:
20
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11.2.1
42
ATmega8HVA/16HVA
Power-on Reset and Charger Connect
Figure 11-1. Reset Logic
The Voltage Regulator will not start up until the Charger Detect module has enabled the Voltage
Regulator. Before this happens the chip will be in Power-off mode and only the Charger Detect
module is enabled. In order for the Charger Detect module to enable the Voltage Regulator, the
voltage at the BATT pin must exceed the Power-On Threshold, V
BATT pin exceeds V
to
See
Figure 11-2 on page
Figure 10-1 on page
RESET
V
BATT
/dW
FET
V
REG
Pull-up Resistor
POT
FILTER
SPIKE
V
REG
, the Voltage Regulator starts up and the chip enters RESET mode, refer
43. When the Delay Counter times out, the chip will enter Active mode.
35.
Ultra Low Power
RC Oscillator
Reset Circuit
SUT[2:0]
debugWIRE
Watchdog
Brown-out
Power-on
Detection
Generator
Charger
Circuit/
Detect
Timer
Reset
Clock
POR
CK
Register (MCUSR)
MCU Status
DATA BUS
Delay Counters
COUNTER RESET
TIMEOUT
POT
. When the voltage at the
8024A–AVR–04/08
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