ATMEGA8535L-8AC Atmel, ATMEGA8535L-8AC Datasheet - Page 29

IC AVR MCU 8K LV 8MHZ COM 44TQFP

ATMEGA8535L-8AC

Manufacturer Part Number
ATMEGA8535L-8AC
Description
IC AVR MCU 8K LV 8MHZ COM 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheets

Specifications of ATMEGA8535L-8AC

Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
2.7 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA8535L-8AC
Manufacturer:
ATMEL
Quantity:
6 269
Part Number:
ATMEGA8535L-8AC
Manufacturer:
Atmel
Quantity:
10 000
Calibrated Internal RC
Oscillator
2502K–AVR–10/06
Table 7. External RC Oscillator Operating Modes
When this Oscillator is selected, start-up times are determined by the SUT fuses as
shown in Table 8.
Table 8. Start-up Times for the External RC Oscillator Clock Selection
Note:
The calibrated internal RC Oscillator provides a fixed 1.0, 2.0, 4.0, or 8.0 MHz clock. All
frequencies are nominal values at 5V and 25°C. This clock may be selected as the sys-
tem clock by programming the CKSEL Fuses as shown in Table 9. If selected, it will
operate with no external components. The CKOPT Fuse should always be unpro-
grammed when using this clock option. During Reset, hardware loads the calibration
byte into the OSCCAL Register and thereby automatically calibrates the RC Oscillator.
At 5V, 25°C and 1.0 MHz Oscillator frequency selected, this calibration gives a fre-
quency within ± 3% of the nominal frequency. Using run-time calibration methods as
described in application notes available at www.atmel.com/avr it is possible to achieve
±1% accuracy at any given V
chip clock, the Watchdog Oscillator will still be used for the Watchdog Timer and for the
Reset Time-out. For more information on the pre-programmed calibration value, see the
section “Calibration Byte” on page 239.
Table 9. Internal Calibrated RC Oscillator Operating Modes
Note:
When this Oscillator is selected, start-up times are determined by the SUT Fuses as
shown in Table 10. XTAL1 and XTAL2 should be left unconnected (NC).
SUT1..0
00
01
10
11
1. This option should not be used when operating close to the maximum frequency of
1. The device is shipped with this option selected.
the device.
CKSEL3..0
Start-up Time from
Power-down and
0101
0110
0111
1000
Power-save
CKSEL3..0
6 CK
0001
18 CK
18 CK
18 CK
0010
0011
0100
(1)
(1)
CC
and Temperature. When this Oscillator is used as the
Additional Delay
(V
from Reset
CC
4.1 ms
4.1 ms
65 ms
= 5.0V)
Frequency Range (MHz)
Nominal Frequency (MHz)
Recommended Usage
BOD enabled
Fast rising power
Slowly rising power
Fast rising power or BOD enabled
8.0 - 12.0
ATmega8535(L)
0.1 - 0.9
0.9 - 3.0
3.0 - 8.0
1.0
2.0
4.0
8.0
29

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