C8051F321R Silicon Laboratories Inc, C8051F321R Datasheet - Page 10

• Manufacturer Part Number: C8051F321R
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321R

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 21
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 13x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 336-1067-2

C8051F320/1
6. VOLTAGE REFERENCE ...................................................................................................55
7. COMPARATORS ...............................................................................................................57
8. VOLTAGE REGULATOR (REG0) ...................................................................................67
9. CIP-51 MICROCONTROLLER ........................................................................................73
10
Figure 5.15. ADC Window Compare Example: Right-Justified Single-Ended Data..............52
Figure 5.16. ADC Window Compare Example: Left-Justified Single-Ended Data ................52
Figure 5.17. ADC Window Compare Example: Right-Justified Differential Data.................53
Figure 5.18. ADC Window Compare Example: Left-Justified Differential Data ...................53
Table 5.1.
Figure 6.1. Voltage Reference Functional Block Diagram....................................................55
Figure 6.2. REF0CN: Reference Control Register ................................................................56
Table 6.1.
Figure 7.1. Comparator0 Functional Block Diagram ............................................................57
Figure 7.2. Comparator1 Functional Block Diagram ............................................................58
Figure 7.3. Comparator Hysteresis Plot.................................................................................59
Figure 7.4. CPT0CN: Comparator0 Control Register ...........................................................60
Figure 7.5. CPT0MX: Comparator0 MUX Selection Register..............................................61
Figure 7.6. CPT0MD: Comparator0 Mode Selection Register..............................................62
Figure 7.7. CPT1CN: Comparator1 Control Register ...........................................................63
Figure 7.8. CPT1MX: Comparator1 MUX Selection Register..............................................64
Figure 7.9. CPT1MD: Comparator1 Mode Selection Register..............................................65
Table 7.1.
Table 8.1.
Figure 8.1. REG0 Configuration: USB Bus-Powered ...........................................................70
Figure 8.2. REG0 Configuration: USB Self-Powered ...........................................................70
Figure 8.3. REG0 Configuration: USB Self-Powered, Regulator Disabled ..........................71
Figure 8.4. REG0 Configuration: No USB Connection ........................................................71
Figure 8.5. REG0CN: Voltage Regulator Control.................................................................72
Figure 9.1. CIP-51 Block Diagram ........................................................................................73
Table 9.1.
Figure 9.2. Memory Map .......................................................................................................79
Table 9.2.
Table 9.3.
Figure 9.3. DPL: Data Pointer Low Byte ..............................................................................84
Figure 9.4. DPH: Data Pointer High Byte .............................................................................84
Figure 9.5. SP: Stack Pointer .................................................................................................85
Figure 9.6. PSW: Program Status Word ................................................................................85
Figure 9.7. ACC: Accumulator..............................................................................................86
Figure 9.8. B: B Register .......................................................................................................86
Table 9.4.
Figure 9.9. IE: Interrupt Enable .............................................................................................90
Figure 9.10. IP: Interrupt Priority ............................................................................................91
Figure 9.11. EIE1: Extended Interrupt Enable 1 .....................................................................92
Figure 9.12. EIP1: Extended Interrupt Priority 1.....................................................................93
Figure 9.13. EIE2: Extended Interrupt Enable 2 .....................................................................94
ADC0 Electrical Characteristics..........................................................................54
Voltage Reference Electrical Characteristics ......................................................56
Comparator Electrical Characteristics.................................................................66
Voltage Regulator Electrical Specifications........................................................69
CIP-51 Instruction Set Summary.........................................................................75
Special Function Register (SFR) Memory Map..................................................81
Special Function Registers ..................................................................................81
Interrupt Summary...............................................................................................89
Rev. 1.1