C8051F001R Silicon Laboratories Inc, C8051F001R Datasheet - Page 100

• Manufacturer Part Number: C8051F001R
• Description: IC 8051 MCU 32K FLASH 48TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F00xr

Specifications of C8051F001R

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 16
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x12b, D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-TQFP, 48-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Other names: 336-1001-2

-40C to +85C unless otherwise specified.
Internal Oscillator
Frequency
Internal Oscillator Current
Consumption (from VDD)
Internal Oscillator
Temperature Stability
Internal Oscillator Power
Supply (VDD) Stability
Bit7:
Bits6-5: UNUSED. Read = 00b, Write = don’t care
Bit4:
Bit3:
Bit2:
Bits1-0: IFCN1-0: Internal Oscillator Frequency Control Bits
MSCLKE
R/W
Bit7
PARAMETER
MSCLKE: Missing Clock Enable Bit
0: Missing Clock Detector Disabled
1: Missing Clock Detector Enabled; triggers a reset if a missing clock is detected
IFRDY: Internal Oscillator Frequency Ready Flag
0: Internal Oscillator Frequency not running at speed specified by the IFCN bits.
1: Internal Oscillator Frequency running at speed specified by the IFCN bits.
CLKSL: System Clock Source Select Bit
0: Uses Internal Oscillator as System Clock.
1: Uses External Oscillator as System Clock.
IOSCEN: Internal Oscillator Enable Bit
0: Internal Oscillator Disabled
1: Internal Oscillator Enabled
00: Internal Oscillator typical frequency is 2MHz.
01: Internal Oscillator typical frequency is 4MHz.
10: Internal Oscillator typical frequency is 8MHz.
11: Internal Oscillator typical frequency is 16MHz.
R/W
Bit6
Figure 14.2. OSCICN: Internal Oscillator Control Register
-
Table 14.1. Internal Oscillator Electrical Characteristics
R/W
Bit5
OSCICN.[1:0] = 00
OSCICN.[1:0] = 01
OSCICN.[1:0] = 10
OSCICN.[1:0] = 11
OSCICN.2 = 1
-
IFRDY
Bit4
CONDITIONS
R
Rev. 1.7
CLKSL
R/W
Bit3
IOSCEN
R/W
Bit2
C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
MIN
12.3
1.5
3.1
6.2
IFCN1
R/W
Bit1
TYP
200
6.4
16
2
4
8
4
IFCN0
R/W
Bit0
MAX
19.2
2.4
4.8
9.6
SFR Address:
Reset Value
00000100
0xB2
ppm/C
UNITS
MHz
%/V
A
100