AT90S8535-8AI Atmel, AT90S8535-8AI Datasheet - Page 82

• Manufacturer Part Number: AT90S8535-8AI
• Description: IC MCU 8K 8MHZ A/D IT 44TQFP
• Manufacturer: Atmel
• Series: AVR® 90Sr

Specifications of AT90S8535-8AI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 8KB (4K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

82
AT90S/LS8535
Figure 55. Port B Schematic Diagram (Pin PB5)
Figure 56. Port B Schematic Diagram (Pin PB6)
PB6
PB5
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
WP:
WD:
RL:
RP:
RD:
SPE:
MSTR
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 ENABLE
MASTER SELECT
RL
RP
RL
RP
Q
Q
Q
Q
PORTB6
PORTB5
RESET
RESET
RESET
RESET
DDB6
DDB5
WD
WP
WD
WP
RD
RD
R
C
R
C
R
C
R
C
D
D
D
D
MSTR
SPE
SPI SLAVE
OUT
MSTR
SPE
SPI MASTER
OUT
SPI SLAVE
IN
SPI MASTER
IN
1041H–11/01