ATMEGA32HVB-8X3 Atmel, ATMEGA32HVB-8X3 Datasheet - Page 83
![MCU AVR 32KB FLASH 8MHZ 44TSSOP](/photos/12/32/123222/44x1-tssop_sml.jpg)
ATMEGA32HVB-8X3
Manufacturer Part Number
ATMEGA32HVB-8X3
Description
MCU AVR 32KB FLASH 8MHZ 44TSSOP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32HVB-8X3
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
I²C, SPI
Peripherals
POR, WDT
Number Of I /o
17
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4 V ~ 25 V
Data Converters
A/D 7x12b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
44-TSSOP
Processor Series
ATMEGA32x
Core
AVR8
Data Bus Width
8 bit
Data Ram Size
2 KB
Interface Type
SPI, TWI
Maximum Clock Frequency
8 MHz
Number Of Programmable I/os
17
Number Of Timers
2
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, ATAVRSB200
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 7 Channel
Package
44TSSOP
Device Core
AVR
Family Name
ATmega
Maximum Speed
8 MHz
Operating Supply Voltage
5|9|12|15|18|24 V
For Use With
ATSTK524 - KIT STARTER ATMEGA32M1/MEGA32C1ATSTK600 - DEV KIT FOR AVR/AVR32ATAVRDRAGON - KIT DRAGON 32KB FLASH MEM AVRATSTK500 - PROGRAMMER AVR STARTER KIT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA32HVB-8X3
Manufacturer:
Atmel
Quantity:
408
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17.2.2
17.3
17.4
8042B–AVR–06/10
Timer/Counter Clock Sources
Counter Unit
Definitions
pare Register. OCRnA contains the low byte of the word and OCRnB contains the higher byte of
the word. When accessing 16-bit registers, special procedures described in section
Registers in 16-bit Mode” on page 90
The Timer/Counter can be clocked internally, via the prescaler, or by an external clock source on
the Tn pin. The Clock Select logic block controls which clock source and edge the Timer/Counter
uses to increment its value. The Timer/Counter is inactive when no clock source is selected. The
output from the Clock Select logic is referred to as the timer clock (clk
Many register and bit references in this section are written in general form. A lower case “n”
replaces the module number, e.g. Timer/Counter number. A lower case “x” replaces the unit,
e.g. OCRnx and ICPnx describes OCRnA/B and ICP1/0x . However, when using the register or
bit defines in a program, the precise form must be used, i.e., TCNT0L for accessing
Timer/Counter0 counter value and so on.
The definitions in
Table 17-1.
The Timer/Counter can be clocked internally, via the prescaler, or by an external clock source.
The Clock Select logic is controlled by the Clock Select (CSn2:0) bits located in the Timer/Coun-
ter Control Register n B (TCCRnB), and controls which clock source and edge the
Timer/Counter uses to increment its value. The Timer/Counter is inactive when no clock source
is selected. The output from the Clock Select logic is referred to as the timer clock (clk
details on clock sources and prescaler, see
page 79
The main part of the 8-bit Timer/Counter is the counter unit.
block diagram of the counter and its surroundings.
Figure 17-2. Counter Unit Block Diagram
BOTTOM
MAX
TOP
The counter reaches the BOTTOM when it becomes 0.
The counter reaches its MAXimum when it becomes 0xFF (decimal 255) in 8-bit mode or
0xFFFF (decimal 65535) in 16-bit mode.
The counter reaches the TOP when it becomes equal to the highest value in the count
sequence. The TOP value can be assigned to be the fixed value 0xFF/0xFFFF (MAX) or
the value stored in the OCRnA Register.
Definitions
Table 17-1
DATA BUS
TCNTn
are also used extensively throughout the document.
must be followed.
count
”Timer/Counter0 and Timer/Counter1 Prescalers” on
Control Logic
top
ATmega16HVB/32HVB
TOVn
(Int.Req.)
clk
Tn
Figure 17-2 on page 83
Clock Select
( From Prescaler )
Detector
Edge
Tn
).
Tn
”Accessing
shows a
Tn
). For
83
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