C8051F121 Silicon Laboratories Inc, C8051F121 Datasheet - Page 276

• Manufacturer Part Number: C8051F121
• Description: IC 8051 MCU FLASH 128K 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F12xr

Specifications of C8051F121

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 100MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 3.6 V
• Data Converters: A/D 8x8b, 8x12b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F120/1/2/3/4/5/6/7
C8051F130/1/2/3
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Figure 20.3. 3-Wire Single Master and Slave Mode Connection Diagram
Figure 20.4. 4-Wire Single Master and Slave Mode Connection Diagram
Figure 20.2. Multiple-Master Mode Connection Diagram
Device 1
Master
Master
Device
Master
Device
GPIO
MISO
MOSI
GPIO
MISO
MOSI
MISO
MOSI
NSS
SCK
SCK
SCK
NSS
Rev. 1.4
GPIO
MISO
MOSI
SCK
NSS
MISO
MOSI
SCK
MISO
MOSI
SCK
NSS
MISO
MOSI
SCK
NSS
Device 2
Master
Device
Device
Device
Slave
Slave
Slave