AT90LS2333-4AI Atmel, AT90LS2333-4AI Datasheet - Page 62

• 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 52. Port B Schematic Diagram (Pin PB2)
Figure 53. Port B Schematic Diagram (Pin PB3)
62
AT90S/LS2333 and AT90S/LS4433
PB2
PB3
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
WP:
WD:
RL:
RP:
RD:
MSTR:
SPE:
MOS
PULL-
UP
MOS
PULL-
UP
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI ENABLE
MASTER SELECT
WRITE PORTB
WRITE DDRB
READ PORTB LATCH
READ PORTB PIN
READ DDRB
SPI MASTER ENABLE
SPI ENABLE
RL
RP
RL
RP
Q
Q
PORTB2
RESET
RESET
Q
Q
DDB2
PORTB3
WD
WP
RESET
RESET
RD
DDB3
C
C
WD
RD
WP
R
C
R
C
D
D
D
D
MSTR
SPE
SPI MASTER
OUT
SPI SLAVE
IN
MSTR
SPE
SPI SS