AT90LS4433-4AI Atmel, AT90LS4433-4AI Datasheet - Page 82
![IC MCU 4K 4MHZ A/D LV 32TQFP](/photos/6/91/69154/313-32-tqfp_sml.jpg)
AT90LS4433-4AI
Manufacturer Part Number
AT90LS4433-4AI
Description
IC MCU 4K 4MHZ A/D LV 32TQFP
Manufacturer
Atmel
Series
AVR® 90LSr
Datasheet
1.AT90S4433-8AC.pdf
(126 pages)
Specifications of AT90LS4433-4AI
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
32-TQFP, 32-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AT90LS4433-4AI
Manufacturer:
HYNIX
Quantity:
14
Part Number:
AT90LS4433-4AI
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Port D Schematics
82
AT90S/LS4433
• TXD – Port D, Bit 1
Transmit Data (Data Output pin for the UART). When the UART Transmitter is enabled,
this pin is configured as an output, regardless of the value of DDD1.
• RXD – Port D, Bit 0
Receive Data (Data Input pin for the UART). When the UART Receiver is enabled, this
pin is configured as an input, regardless of the value of DDD0. When the UART forces
this pin to be an input, a logical “1” in PORTD0 will turn on the internal pull-up.
Note that all port pins are synchronized. The synchronization latches are, however, not
shown in the figures.
Figure 57. Port D Schematic Diagram (Pin PD0)
PD0
WP:
WD:
RL:
RP:
RD:
RXD:
RXEN:
MOS
PULL-
UP
WRITE PORTD
WRITE DDRD
READ PORTD LATCH
READ PORTD PIN
READ DDRD
UART RECEIVE DATA
UART RECEIVE ENABLE
RL
RP
Q
Q
PORTD0
RESET
RESET
DDD0
WD
RD
WP
C
C
D
D
RXEN
RXD
1042H–AVR–04/03