ATMEGA16HVA-4CKU Atmel, ATMEGA16HVA-4CKU Datasheet - Page 25
ATMEGA16HVA-4CKU
Manufacturer Part Number
ATMEGA16HVA-4CKU
Description
MCU AVR 16K FLASH 4MHZ 36-LGA
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA16HVA-4CKU.pdf
(196 pages)
Specifications of ATMEGA16HVA-4CKU
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
7
Program Memory Size
16KB (8K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 9 V
Data Converters
A/D 5x12b
Oscillator Type
External
Operating Temperature
-20°C ~ 85°C
Package / Case
36-LGA
Processor Series
ATMEGA16x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI
Maximum Clock Frequency
4 MHz
Number Of Programmable I/os
6
Number Of Timers
2
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, ATAVRSB200, ATAVRSB201
Minimum Operating Temperature
- 20 C
On-chip Adc
12 bit, 5 Channel
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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9.1.5
9.1.6
9.2
9.3
8024A–AVR–04/08
Clock Sources
Calibrated Fast RC Oscillator
Coulomb Counter ADC Clock - clk
Watchdog Timer and Battery Protection Clock
The Coulomb Counter ADC is provided with a dedicated clock domain. This allows operating the
Coulomb Counter ADC in low power modes like Power-save for continuous current
measurements.
The Watchdog Timer and Battery Protection are provided with a dedicated clock domain. This
allows operation in all modes except Power-off. It also allows very low power operation by utiliz-
ing an Ultra Low Power RC Oscillator dedicated to this purpose.
The following section describe the clock sources available in the device. The clocks are input to
the AVR clock generator, and routed to the appropriate modules.
The calibrated Fast RC Oscillator by default provides a 8.0 MHz clock to the system clock pres-
caler. The frequency is nominal value at 70°C. This clock will operate with no external
components. With an accurate time reference and by using runtime calibration, this oscillator
can be calibrated to an accuracy of +/- 1. % over the entire temperature range. During reset,
hardware loads the calibration byte into the FOSCCAL Register and thereby automatically cali-
brates the Fast RC Oscillator. At 70°C, this calibration gives a frequency of 8 MHz ± 4%. The
oscillator can be calibrated to any frequency in the range 7.3- 8.1 MHz by changing the FOSC-
CAL register. For more information on the pre-programmed calibration value, see the section
”Reading the Signature Row from Software” on page
clock is given by the
Start-up time of the chip is referred to as a number of Prescaled Fast RC Oscillator cycles (CK)
and a number of ULP oscillator cycles. The start-up time is selected by SUT fuses as defined in
Table 9-1 on page
Table 9-1.
Notes:
SUT3..0
111
000
001
010
011
100
101
110
1. The device is shipped with this option selected.
2. The actual value of the added, selectable 4- 512 ms delay depends on the actual frequency of
(1)
the
on page 165
“Ultra Low Power RC
Start-up times according to SUT fuse selection.
25.
CCADC
”System Clock Prescaler” on page
Start-up Time from
Power-save
6 CK
6 CK
6 CK
6 CK
6 CK
6 CK
6 CK
6 CK
Oscillator”. See
Additional Delay from Reset, Typical Values
Table 9-2 on page 27
144. Note that the frequency of the system
ATmega8HVA/16HVA
27.
14 CK + 128 ms
14 CK + 256 ms
14 CK + 512 ms
14 CK + 16 ms
14 CK + 32 ms
14 CK + 64 ms
14 CK + 4 ms
14 CK + 8 ms
and
”Electrical Characteristics”
(2)
25
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