ATMEGA8535-16PC Atmel, ATMEGA8535-16PC Datasheet - Page 71
ATMEGA8535-16PC
Manufacturer Part Number
ATMEGA8535-16PC
Description
IC AVR MCU 8K 16MHZ COM 40-DIP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8535-16PC
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
40-DIP (0.600", 15.24mm)
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
2-Wire, SPI, USART
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
32
Number Of Timers
3
Operating Supply Voltage
4.5 V to 5.5 V
Maximum Operating Temperature
+ 70 C
Mounting Style
Through Hole
Minimum Operating Temperature
0 C
On-chip Adc
10 bit, 8 Channel
Data Rom Size
512 B
Height
4.83 mm
Length
52.58 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Width
13.97 mm
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA8535-16PC
Manufacturer:
ATMEL
Quantity:
1 500
Company:
Part Number:
ATMEGA8535-16PC
Manufacturer:
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8-bit Timer/Counter0
with PWM
Overview
Registers
2502K–AVR–10/06
Timer/Counter0 is a general purpose, single channel, 8-bit Timer/Counter module. The
main features are:
•
•
•
•
•
•
•
A simplified block diagram of the 8-bit Timer/Counter is shown in Figure 27. For the
actual placement of I/O pins, refer to “Pinout ATmega8535” on page 2. CPU accessible
I/O Registers, including I/O bits and I/O pins, are shown in bold. The device-specific I/O
Register and bit locations are listed in the “8-bit Timer/Counter Register Description” on
page 83.
Figure 27. 8-bit Timer/Counter Block Diagram
The Timer/Counter (TCNT0) and Output Compare Register (OCR0) are 8-bit registers.
Interrupt request (abbreviated to Int.Req. in the figure) signals are all visible in the Timer
Interrupt Flag Register (TIFR). All interrupts are individually masked with the Timer
Interrupt Mask Register (TIMSK). TIFR and TIMSK are not shown in the figure since
these registers are shared by other timer units.
The Timer/Counter can be clocked internally, via the prescaler, or by an external clock
source on the T0 pin. The Clock Select logic block controls which clock source and edge
the Timer/Counter uses to increment (or decrement) 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
Single Channel Counter
Clear Timer on Compare Match (Auto Reload)
Glitch-free, Phase Correct Pulse Width Modulator (PWM)
Frequency Generator
External Event Counter
10-bit Clock Prescaler
Overflow and Compare Match Interrupt Sources (TOV0 and OCF0)
Timer/Counter
TCNTn
OCRn
=
direction
BOTTOM
count
clear
= 0
Control Logic
T0
=
TCCRn
TOP
).
0xFF
clk
Tn
Generation
Waveform
ATmega8535(L)
Clock Select
( From Prescaler )
Detector
Edge
OCn
(Int.Req.)
TOVn
(Int.Req.)
OCn
Tn
71
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