ATMEGA16HVA-4CKU Atmel, ATMEGA16HVA-4CKU Datasheet - Page 24
![MCU AVR 16K FLASH 4MHZ 36-LGA](/photos/12/32/123221/36ck1-lga_sml.jpg)
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. System Clock and Clock Options
9.1
9.1.1
9.1.2
9.1.3
9.1.4
24
Clock Systems and their Distribution
ATmega8HVA/16HVA
CPU Clock – clk
I/O Clock – clk
Flash Clock – clk
Voltage ADC Clock – clk
I/O
Figure 9-1
need not be active at a given time. In order to reduce power consumption, the clocks to modules
not being used can be halted by using different sleep modes, as described in
ment and Sleep Modes” on page
Figure 9-1.
The CPU clock is routed to parts of the system concerned with operation of the AVR core.
Examples of such modules are the General Purpose Register File, the Status Register and the
data memory holding the Stack Pointer. Halting the CPU clock inhibits the core from performing
general operations and calculations.
The I/O clock is used by the majority of the I/O modules. The I/O clock is also used by the Exter-
nal Interrupt module, but note that some external interrupts are detected by asynchronous logic,
allowing such interrupts to be detected even if the I/O clock is halted.
The Flash clock controls operation of the Flash interface. The Flash clock is usually active simul-
taneously with the CPU clock.
The Voltage ADC is provided with a dedicated clock domain. The VADC clock is automatically
prescaled relative to the System Clock Prescalers setting by the VADC Prescaler, giving a fixed
VADC clock at 1 MHz.
CPU
FLASH
Coulomb Counter
ADC
1/4
VADC
clk
Oscillator
presents the principal clock systems in the AVR and their distribution. All of the clocks
Slow RC
CCADC
Oscillator Sampling
Clock Distribution
Interface
Watchdog Timer
CORE
34. The clock systems are detailed below.
CPU
Battery Protection
Ultra Low Power
RC Oscillator
clk
CPU
RAM
Reset Logic
FLASH and
EEPROM
clk
FLASH
Clock Control
System Clock
Oscillator
Prescaler
Fast RC
Prescaler
AVR
VADC
clk
Voltage
VADC
ADC
”Power Manage-
8024A–AVR–04/08
clk
Other I/O
Modules
I/O
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