C8051F321-GMR Silicon Laboratories Inc, C8051F321-GMR Datasheet - Page 4

• Manufacturer Part Number: C8051F321-GMR
• Description: IC 8051 MCU 16K FLASH 28MLP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F32xr

Specifications of C8051F321-GMR

• 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
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 2.25 KB
• Interface Type: I2C, SMBus, SPI, UART, USB
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 21
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F320DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 13 Channel / 10 bit, 7 Channel
• Package: 28MLP
• Device Core: 8051
• Family Name: C8051F321
• Maximum Speed: 25 MHz
• Operating Supply Voltage: 3.3 V
• For Use With: 336-1480 - DAUGHTER CARD TOOLSTCK C8051F321336-1449 - ADAPTER PROGRAM TOOLSTICK F321336-1260 - DEV KIT FOR C8051F320/F321
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Details

C8051F320/1
10. Reset Sources ....................................................................................................... 99
11. Flash Memory ..................................................................................................... 106
12. External RAM ...................................................................................................... 114
13. Oscillators ............................................................................................................. 116
4
9.3. Interrupt Handler ............................................................................................... 87
9.4. Power Management Modes .............................................................................. 97
10.1.Power-On Reset ............................................................................................. 100
10.2.Power-Fail Reset / VDD Monitor .................................................................... 101
10.3.External Reset ................................................................................................ 102
10.4.Missing Clock Detector Reset ........................................................................ 102
10.5.Comparator0 Reset ........................................................................................ 102
10.6.PCA Watchdog Timer Reset .......................................................................... 102
10.7.Flash Error Reset ........................................................................................... 102
10.8.Software Reset ............................................................................................... 103
10.9.USB Reset...................................................................................................... 103
11.1.Programming The Flash Memory ................................................................... 106
11.2.Non-volatile Data Storage .............................................................................. 107
11.3.Security Options ............................................................................................. 108
11.4.Flash Write and Erase Guidelines .................................................................. 110
12.1.Accessing User XRAM ................................................................................... 114
12.2.Accessing USB FIFO Space .......................................................................... 114
13.1.Programmable Internal Oscillator ................................................................... 116
13.2.External Oscillator Drive Circuit...................................................................... 119
13.3.4x Clock Multiplier .......................................................................................... 122
13.4.System and USB Clock Selection .................................................................. 123
9.2.7. Register Descriptions ............................................................................... 83
9.3.1. MCU Interrupt Sources and Vectors ........................................................ 87
9.3.2. External Interrupts .................................................................................... 88
9.3.3. Interrupt Priorities ..................................................................................... 88
9.3.4. Interrupt Latency ...................................................................................... 89
9.3.5. Interrupt Register Descriptions................................................................. 90
9.4.1. Idle Mode.................................................................................................. 97
9.4.2. Stop Mode ................................................................................................ 97
11.1.1.Flash Lock and Key Functions ............................................................... 106
11.1.2.Flash Erase Procedure .......................................................................... 106
11.1.3.Flash Write Procedure ........................................................................... 107
11.4.1.VDD Maintenance and the VDD Monitor ............................................... 110
11.4.2.16.4.2 PSWE Maintenance .................................................................... 111
11.4.3.System Clock ......................................................................................... 111
13.1.1.Programming the Internal Oscillator on C8051F320/1 Devices ............. 117
13.1.2.Internal Oscillator Suspend Mode .......................................................... 118
13.2.1.Clocking Timers Directly Through the External Oscillator...................... 119
13.2.2.External Crystal Example....................................................................... 119
13.2.3.External RC Example............................................................................. 120
13.2.4.External Capacitor Example................................................................... 120
Rev. 1.4