ATMEGA8535L-8JI Atmel, ATMEGA8535L-8JI Datasheet - Page 136
![IC AVR MCU 8K LV 8MHZ IND 44PLCC](/photos/6/70/67043/453-44-plcc_sml.jpg)
ATMEGA8535L-8JI
Manufacturer Part Number
ATMEGA8535L-8JI
Description
IC AVR MCU 8K LV 8MHZ IND 44PLCC
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8535L-8JI
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
-40°C ~ 85°C
Package / Case
44-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA8535L-8JI
Manufacturer:
TI
Quantity:
5 000
Part Number:
ATMEGA8535L-8JI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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Serial Peripheral
Interface – SPI
136
ATmega8535(L)
The Serial Peripheral Interface (SPI) allows high-speed synchronous data transfer
between the ATmega8535 and peripheral devices or between several AVR devices.
The ATmega8535 SPI includes the following features:
•
•
•
•
•
•
•
•
Figure 65. SPI Block Diagram
Note:
The interconnection between Master and Slave CPUs with SPI is shown in Figure 66.
The system consists of two Shift Registers, and a Master clock generator. The SPI Mas-
ter initiates the communication cycle when pulling low the Slave Select SS pin of the
desired Slave. Master and Slave prepare the data to be sent in their respective Shift
Registers, and the Master generates the required clock pulses on the SCK line to inter-
change data. Data is always shifted from Master to Slave on the Master Out – Slave In,
MOSI, line, and from Slave to Master on the Master In – Slave Out, MISO, line. After
each data packet, the Master will synchronize the Slave by pulling high the Slave Select,
SS, line.
When configured as a Master, the SPI interface has no automatic control of the SS line.
This must be handled by user software before communication can start. When this is
Full Duplex, Three-wire Synchronous Data Transfer
Master or Slave Operation
LSB First or MSB First Data Transfer
Seven Programmable Bit Rates
End of Transmission Interrupt Flag
Write Collision Flag Protection
Wake-up from Idle Mode
Double Speed (CK/2) Master SPI Mode
/2/4/8/16/32/64/128
1. Refer to Figure 1 on page 2, and Table 26 on page 60 for SPI pin placement.
DIVIDER
(1)
2502K–AVR–10/06
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