C8051F331 Silicon Laboratories Inc, C8051F331 Datasheet - Page 81

• Manufacturer Part Number: C8051F331
• Description: IC 8051 MCU 8K FLASH 20MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F33xr

Specifications of C8051F331

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 8KB (8K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Table 9.4. Interrupt Summary
Interrupt Source
Reset
External Interrupt 0
(/INT0)
Timer 0 Overflow
External Interrupt 1
(/INT1)
Timer 1 Overflow
UART0
Timer 2 Overflow
SPI0
SMB0
RESERVED
ADC0 Window Compare 0x004B
ADC0 Conversion
Complete
Programmable Counter
Array
Comparator0
RESERVED
Timer 3 Overflow
Interrupt
Vector
0x0000
0x0003
0x000B
0x0013
0x001B
0x0023
0x002B
0x0033
0x003B
0x0043
0x0053
0x005B
0x0063
0x006B
0x0073
Priority
Order
Top
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pending Flag
None
IE0 (TCON.1)
TF0 (TCON.5)
IE1 (TCON.3)
TF1 (TCON.7)
RI0 (SCON0.0)
TI0 (SCON0.1)
TF2H (TMR2CN.7)
TF2L (TMR2CN.6)
SPIF (SPI0CN.7)
WCOL (SPI0CN.6)
MODF (SPI0CN.5)
RXOVRN
(SPI0CN.4)
SI (SMB0CN.0)
N/A
AD0WINT
(ADC0CN.3)
AD0INT
(ADC0CN.5)
CF (PCA0CN.7)
CCFn (PCA0CN.n)
CP0FIF (CPT0CN.4)
CP0RIF (CPT0CN.5)
N/A
TF3H (TMR3CN.7)
TF3L (TMR3CN.6)
C8051F330/1, C8051F330D
Rev. 1.2
N/A N/A
Y
Y
Y
Y
Y
Y
Y
Y
N/A N/A N/A
Y
Y
Y
N
N/A N/A N/A
N
Y
Y
Y
Y
N
N
N
N
N
N
N
N
N
Enable
Flag
Always
Enabled
EX0 (IE.0) PX0 (IP.0)
ET0 (IE.1) PT0 (IP.1)
EX1 (IE.2) PX1 (IP.2)
ET1 (IE.3) PT1 (IP.3)
ES0 (IE.4) PS0 (IP.4)
ET2 (IE.5) PT2 (IP.5)
ESPI0
(IE.6)
ESMB0
(EIE1.0)
EWADC0
(EIE1.2)
EADC0
(EIE1.3)
EPCA0
(EIE1.4)
ECP0
(EIE1.5)
ET3
(EIE1.7)
Priority
Control
Always
Highest
PSPI0
(IP.6)
PSMB0
(EIP1.0)
N/A
PWADC0
(EIP1.2)
PADC0
(EIP1.3)
PPCA0
(EIP1.4)
PCP0
(EIP1.5)
N/A
PT3
(EIP1.7)
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