AT90LS4433-4PI Atmel, AT90LS4433-4PI Datasheet - Page 9

• Manufacturer Part Number: AT90LS4433-4PI
• Description: IC MCU 4K FLSH 4MHZ A/D LV 28DIP
• Manufacturer: Atmel
• Series: AVR® 90LSr

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

1042H–AVR–04/03
Figure 6. AT90S4433 Memory Maps
A flexible interrupt module has its control registers in the I/O space with an additional
Global Interrupt Enable bit in the Status Register. All the different interrupts have a sep-
arate Interrupt Vector in the Interrupt Vector table at the beginning of the Program
memory. The different interrupts have priority in accordance with their Interrupt Vector
position. The lower the Interrupt Vector address, the higher the priority.
Program Memory
Program Flash
(2K x 16)
$000
$7FF
Working Registers
32 Gen. Purpose
64 I/O Registers
Internal SRAM
Data Memory
AT90S/LS4433
(128 x 8)
$00DF
$0000
$001F
$0020
$005F
$0060
9