AT90LS2333-4AI Atmel, AT90LS2333-4AI Datasheet - Page 15

• Manufacturer Part Number: AT90LS2333-4AI
• Description: IC MCU 2K 4MHZ A/D LV IT 32TQFP
• Manufacturer: Atmel
• Series: AVR® 90LSr

Specifications of AT90LS2333-4AI

• 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: 2KB (1K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 128 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 6 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-TQFP, 32-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Figure 23. On-Chip Data SRAM Access Cycles
I/O Memory
The I/O space definition of the AT90S2333/4433 is shown in the following table:
Table 2. AT90S2333/4433 I/O Space
I/O Address (SRAM 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)
$17 ($37)
$16 ($36)
System Clock Ø
SREG
GIFR
TIMSK
TIFR
TCNT0
TCCR1A
PORTB
Name
SP
GIMSK
MCUCR
MCUSR
TCCR0
TCCR1B
TCNT1H
TCNT1L
OCR1H
OCR1L
ICR1H
ICR1L
WDTCR
EEAR
EEDR
EECR
DDRB
PINB
Address
Data
Data
WR
RD
Prev. Address
T1
Timer/Counter Interrupt Flag register
Function
Status REGister
Stack Pointer
General Interrupt MaSK register
General Interrupt Flag Register
Timer/Counter Interrupt MaSK register
MCU general Control Register
MCU general Status 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 Output Compare Register Low Byte
Timer/Counter1 Input Capture Register High Byte
Timer/Counter 1 Input Capture Register Low Byte
Watchdog Timer Control Register
EEPROM Address Register
EEPROM Data Register
EEPROM Control Register
Data Register, Port B
Data Direction Register, Port B
Input Pins, Port B
AT90S/LS2333 and AT90S/LS4433
Address
T2
T3
T4
15