AT90LS4433-4PI Atmel, AT90LS4433-4PI Datasheet - Page 61
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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UART Baud Rate Register –
UBRR
1042H–AVR–04/03
This is a 12-bit register that contains the UART Baud Rate according to the equation on
the previous page. The UBRRHI contains the four most significant bits, and the UBRR
contains the eight least significant bits of the UART Baud Rate.
Bit
$03 ($23)
$09 ($29)
Read/Write
Initial Value
MSB
R/W
15
R
–
7
0
0
R/W
14
R
–
6
0
0
R/W
13
R
–
5
0
0
R/W
12
R
–
4
0
0
MSB
R/W
R/W
11
3
0
0
R/W
R/W
10
2
0
0
AT90S/LS4433
R/W
R/W
9
1
0
0
LSB
LSB
R/W
R/W
8
0
0
0
UBRRHI
UBRR
61
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