AT90LS4433-4AC Atmel, AT90LS4433-4AC Datasheet - Page 17

• Manufacturer Part Number: AT90LS4433-4AC
• Description: IC MCU 4K 4MHZ A/D LV 32TQFP
• Manufacturer: Atmel
• Series: AVR® 90LSr

Specifications of AT90LS4433-4AC

• 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: 0°C ~ 70°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

I/O Memory
1042H–AVR–04/03
Figure 23. On-chip Data SRAM Access Cycles
The I/O space definition of the AT90S4433 is shown in Table 2.
Table 2. AT90S4433 I/O Space
(SRAM Address)
System Clock Ø
I/O Address
$3D ($5D)
$2D ($4D)
$2C ($4C)
$1D ($3D)
$1C ($3C)
$3B ($5B)
$3A ($5A)
$2E ($4E)
$2B ($4B)
$2A ($4A)
$1E ($3E)
$3F ($5F)
$2F ($4F)
$39 ($59)
$38 ($58)
$35 ($55)
$34 ($54)
$33 ($53)
$32 ($52)
$27 ($47)
$26 ($46)
$21 ($41)
$18 ($38)
Address
Data
Data
WR
RD
Name
SREG
SP
GIMSK
GIFR
TIMSK
TIFR
MCUCR
MCUSR
TCCR0
TCNT0
TCCR1A
TCCR1B
TCNT1H
TCNT1L
OCR1H
OCR1L
ICR1H
ICR1L
WDTCR
EEAR
EEDR
EECR
PORTB
Prev. Address
T1
(1)
Stack Pointer
General Interrupt MaSK Register
General Interrupt Flag Register
Timer/Counter Interrupt MaSK Register
MCU general Control Register
MCU general Status Register
Timer/Counter1 Output Compare Register Low Byte
EEPROM Address Register
Function
Status Register
Timer/Counter Interrupt Flag Register
Timer/Counter0 Control Register
Timer/Counter0 (8-bit)
Timer/Counter1 Control Register A
Timer/Counter1 Control Register B
Timer/Counter1 High Byte
Timer/Counter1 Low Byte
Timer/Counter1 Output Compare Register High Byte
Timer/Counter1 Input Capture Register High Byte
Timer/Counter 1 Input Capture Register Low Byte
Watchdog Timer Control Register
EEPROM Data Register
EEPROM Control Register
Data Register, Port B
Address
T2
T3
AT90S/LS4433
T4
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