AT90S4433-8PC Atmel, AT90S4433-8PC Datasheet - Page 120
AT90S4433-8PC
Manufacturer Part Number
AT90S4433-8PC
Description
IC MCU 4K FLSH 8MHZ A/D 28DIP
Manufacturer
Atmel
Series
AVR® 90Sr
Datasheet
1.AT90S4433-8AC.pdf
(126 pages)
Specifications of AT90S4433-8PC
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
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)
4 V ~ 6 V
Data Converters
A/D 6x10b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
28-DIP (0.300", 7.62mm)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
AT90S4433-8PC
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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AT90S/LS4433
3. Brown-out Detection Level
2. Serial Programming at Voltages below 2.9V
1. UART Loses Synchronization if RXD Line is Low when UART Receive is
The Brown-out Detection level can increase when there is heavy I/O-activity on the
device. The increase can be significant when some of the I/O pins are driving heavy
loads.
Problem Fix/Workaround
Select a V
Avoid loading I/O ports with high capacitive or resistive loads.
At voltages below 2.9V, serial programming might fail.
Problem Fix/Workaround
Keep V
Disabled
The UART will detect a UART start bit and start reception even if the UART is not
enabled. If this occurs, the first byte after reenabling the UART will be corrupted.
Problem Fix/Workaround
Make sure that the RX line is high at start-up and when the UART is disabled. An
external RS-232 level converter keeps the line high during start-up.
CC
CC
at 2.9V or higher during In-System Programming.
well above the Brown-out Detection level.
1042H–AVR–04/03
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