C8051F331 Silicon Laboratories Inc, C8051F331 Datasheet - Page 198

• 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
198
Notes:
System Clock (Hz)
1. Assumes SYSCLK/12 as the PCA clock source, and a PCA0L value
2. Internal oscillator reset frequency.
24,500,000
24,500,000
24,500,000
18,432,000
18,432,000
18,432,000
11,059,200
11,059,200
11,059,200
3,060,000
3,060,000
3,060,000
Table 19.3. Watchdog Timer Timeout Intervals
of 0x00 at the update time.
32,000
32,000
32,000
2
2
2
PCA0CPL2
Rev. 1.2
255
128
255
128
255
128
255
128
255
128
32
32
32
32
32
Timeout Interval (ms)
24576
12384
129.5
3168
32.1
16.2
42.7
21.5
71.1
35.8
33.1
257
4.1
5.5
9.2
1