AT90LS4433-4PI Atmel, AT90LS4433-4PI Datasheet - Page 50
AT90LS4433-4PI
Manufacturer Part Number
AT90LS4433-4PI
Description
IC MCU 4K FLSH 4MHZ A/D LV 28DIP
Manufacturer
Atmel
Series
AVR® 90LSr
Datasheet
1.AT90S4433-8AC.pdf
(126 pages)
Specifications of AT90LS4433-4PI
Core Processor
AVR
Core Size
8-Bit
Speed
4MHz
Connectivity
SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
20
Program Memory Size
4KB (2K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 6 V
Data Converters
A/D 6x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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pins are inputs. When SS is driven high, externally all pins are inputs and the SPI is
passive, which means that it will not receive incoming data. Note that the SPI logic will
be reset once the SS pin is brought high. If the SS pin is brought high during a
transmission, the SPI will stop sending and receiving immediately and both data
received and data sent must be considered as lost.
Data Modes
There are four combinations of SCK phase and polarity with respect to serial data,
which are determined by control bits CPHA and CPOL. The SPI data transfer formats
are shown in Figure 38 and Figure 39.
Figure 38. SPI Transfer Format with CPHA = 0 and DORD = 0
Figure 39. SPI Transfer Format with CPHA = 1 and DORD = 0
AT90S/LS4433
50
1042H–AVR–04/03
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