AT90S4434-8PC Atmel, AT90S4434-8PC Datasheet - Page 7

• Manufacturer Part Number: AT90S4434-8PC
• Description: IC MCU 4K FLSH 8MHZ A/D 40DIP
• Manufacturer: Atmel
• Series: AVR® 90Sr

Specifications of AT90S4434-8PC

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 8MHz
• Connectivity: SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 4KB (2K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP (0.600", 15.24mm)
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Register Summary
Notes:
Address
$3E ($5E)
$3D ($5D)
$3C ($5C)
$3B ($5B)
$3A ($5A)
$2E ($4E)
$2D ($4D)
$2C ($4C)
$2B ($4B)
$2A ($4A)
$1E ($3E)
$1D ($3D)
$1C ($3C)
$1B ($3B)
$1A ($3A)
$0E ($2E)
$0D ($2D)
$0C ($2C)
$0B ($2B)
$0A ($2A)
$3F ($5F)
$39 ($59)
$38 ($58)
$37 ($57)
$36 ($56)
$35 ($55)
$34 ($54)
$33 ($53)
$32 ($52)
$31 ($51)
$30 ($50)
$2F ($4F)
$29 ($49)
$28 ($48)
$27 ($47)
$26 ($46)
$25 ($45)
$24 ($44)
$23 ($43)
$22 ($42)
$21 ($41)
$20 ($40)
$1F ($3F)
$19 ($39)
$18 ($38)
$17 ($37)
$16 ($36)
$15 ($35)
$14 ($34)
$13 ($33)
$12 ($32)
$11 ($31)
$10 ($30)
$0F ($2F)
$09 ($29)
$08 ($28)
$07 ($27)
$06 ($26)
$05 ($25)
$04 ($24)
$03 ($20)
$02 ($22)
$01 ($21)
$00 ($20)
1.
2.
For compatibility with future devices, reserved bits should be written to zero if accessed. Reserved I/O memory addresses should never be written.
Some of the status flags are cleared by writing a logical “1” to them. Note that the CBI and SBI instructions will operate on all bits in the I/O register, writing a one
back into any flag read as set, thus clearing the flag. The CBI and SBI instructions work with registers $00 to $1F only.
GIMSK
GIFR
TIMSK
TIFR
Reserved
Reserved
Reserved
Reserved
TCNT2
Reserved
EEARL
EEDR
DDRA
PINA
DDRB
PINB
DDRC
PINC
DDRD
PIND
SPDR
UDR
UCR
UBRR
Reserved
Reserved
Reserved
Reserved
SREG
SPH
SPL
Reserved
MCUCR
MCUSR
TCCR0
TCNT0
TCCR1A
TCCR1B
TCNT1H
TCNT1L
OCR1AH
OCR1AL
OCR1BH
OCR1BL
ICR1H
ICR1L
TCCR2
OCR2
ASSR
WDTCR
EEARH
EECR
PORTA
PORTB
PORTC
PORTD
SPSR
SPCR
USR
ACSR
ADMUX
ADCSR
ADCH
ADCL
Name
COM1A1
PORTA7
PORTB7
PORTC7
PORTD7
EEAR7
OCIE2
ICNC1
RXCIE
Bit 7
PINA7
PINB7
PINC7
PIND7
INTF1
OCF2
DDA7
DDB7
DDC7
DDD7
ADEN
ADC7
SPIF
SPIE
INT1
RXC
ACD
SP7
I
-
-
-
-
-
-
-
-
-
-
COM1A0
PORTA6
PORTB6
PORTC6
PORTD6
EEAR6
PWM2
WCOL
Bit 6
INTF0
TOIE2
ICES1
PINA6
PINB6
PINC6
PIND6
TXCIE
ADSC
TOV2
DDA6
DDB6
DDC6
DDD6
ADC6
INT0
SPE
TXC
SP6
SE
T
-
-
-
-
-
-
-
-
-
COM1B1
PORTA5
PORTB5
PORTC5
PORTD5
COM21
TICIE1
EEAR5
UDRIE
PINC5
PIND5
DORD
Bit 5
PINA5
PINB5
UDRE
ADFR
DDA5
DDB5
DDC5
DDD5
ADC5
ICF1
ACO
SM1
SP5
Timer/Counter1 – Output Compare Register A High Byte
Timer/Counter1 – Output Compare Register B High Byte
H
Timer/Counter1 – Output Compare Register A Low Byte
Timer/Counter1 – Output Compare Register B Low Byte
-
-
-
-
-
-
-
-
-
-
-
Timer/Counter1 – Input Capture Register High Byte
Timer/Counter1 – Input Capture Register Low Byte
Timer/Counter1 – Counter Register High Byte
Timer/Counter1 – Counter Register Low Byte
Timer/Counter2 Output Compare Register
COM1B0
PORTA4
PORTB4
PORTC4
PORTD4
OCIE1A
WDTOE
OCF1A
COM20
EEAR4
Bit 4
PINA4
PINB4
PINC4
PIND4
DDA4
DDC4
DDD4
MSTR
RXEN
UART Baud Rate Register
ADC4
DDB4
ADIF
SP4
SM0
EEPROM Data Register
UART I/O Data Register
Timer/Counter2 (8 Bits)
ACI
Timer/Counter0 (8 Bits)
FE
S
-
-
-
-
-
-
-
-
-
-
SPI Data Register
PORTC3
PORTD3
PORTA3
PORTB3
OCIE1B
OCF1B
EEAR3
Bit 3
EERIE
PINA3
PINB3
PINC3
PIND3
ISC11
DDA3
DDB3
DDC3
DDD3
CPOL
TXEN
ADC3
CTC1
CTC2
WDE
ACIE
ADIE
SP3
AS2
OR
V
-
-
-
-
-
-
-
-
PORTC2
PORTD2
TCN2UB
PORTA2
PORTB2
EEMWE
EEAR2
ADPS2
Bit 2
TOIE1
WDP2
PINA2
PINB2
PINC2
PIND2
ISC10
DDA2
DDB2
DDC2
DDD2
CPHA
CHR9
MUX2
ADC2
TOV1
CS02
CS12
CS22
ACIC
SP2
N
-
-
-
-
-
-
-
OCR2UB
PORTA1
PORTB1
PORTC1
PORTD1
PWM11
EXTRF
EEAR1
ADPS1
Bit 1
WDP1
EEWE
PINA1
PINB1
PINC1
PIND1
ACIS1
ISC01
DDC1
DDD1
MUX1
CS01
CS11
DDA1
DDB1
SPR1
RXB8
ADC9
ADC1
CS21
SP9
SP1
Z
-
-
-
-
-
TCR2UB
PORTA0
PORTB0
PORTC0
PORTD0
PWM10
EEAR9
EEAR0
ADPS0
PINC0
PIND0
Bit 0
TOIE0
ISC00
PORF
WDP0
PINA0
PINB0
ACIS0
MUX0
TOV0
EERE
DDA0
DDB0
DDC0
DDD0
SPR0
ADC8
ADC0
CS00
CS10
CS20
TXB8
SP8
SP0
C
-
-
-
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