C8051F331 Silicon Laboratories Inc, C8051F331 Datasheet - Page 168

• 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: -

C8051F330/1, C8051F330D
168
* SCK is shown for CKPOL = 0. SCK is the opposite polarity for CKPOL = 1.
* SCK is shown for CKPOL = 0. SCK is the opposite polarity for CKPOL = 1.
MOSI
MISO
MOSI
MISO
SCK*
SCK*
NSS
T
NSS
SEZ
T
T
SE
SE
T
SEZ
T
T
CKH
CKH
T
SOH
T
Figure 17.14. SPI Slave Timing (CKPHA = 0)
Figure 17.15. SPI Slave Timing (CKPHA = 1)
SIS
T
T
CKL
CKL
T
T
SIS
SIH
T
SOH
Rev. 1.2
T
SIH
T
SLH
T
T
T
SD
SD
SDZ
T
SDZ