C8051F352 Silicon Laboratories Inc, C8051F352 Datasheet - Page 126

IC 8051 MCU 8K FLASH 32LQFP

C8051F352

Manufacturer Part Number
C8051F352
Description
IC 8051 MCU 8K FLASH 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F35xr
Datasheets

Specifications of C8051F352

Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, 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
Data Converters
A/D 8x16b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-LQFP
Processor Series
C8051F35x
Core
8051
Data Bus Width
8 bit
Data Ram Size
768 B
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
17
Number Of Timers
4
Operating Supply Voltage
2.7 V to 3.6 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
Minimum Operating Temperature
- 40 C
On-chip Adc
16 bit
On-chip Dac
8 bit
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Lead Free Status / Rohs Status
No

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C8051F350/1/2/3
126
Bit7:
Bit6:
Bits5-2:
Bits1-0:
Bit7:
Bits 6-0: OSCICL: Internal Oscillator Calibration Register.
IOSCEN
R/W
Bit7
Bit7
R
IOSCEN: Internal Oscillator Enable Bit.
0: Internal Oscillator Disabled.
1: Internal Oscillator Enabled.
IFRDY: Internal Oscillator Frequency Ready Flag.
0: Internal Oscillator is not running at programmed frequency.
1: Internal Oscillator is running at programmed frequency.
UNUSED. Read = 0000b, Write = don't care.
IFCN1-0: Internal Oscillator Frequency Control Bits.
00: SYSCLK derived from Internal Oscillator divided by 8.
01: SYSCLK derived from Internal Oscillator divided by 4.
10: SYSCLK derived from Internal Oscillator divided by 2.
11: SYSCLK derived from Internal Oscillator divided by 1.
UNUSED. Read = 0. Write = don’t care.
This register determines the internal oscillator period. On C8051F350/1/2/3 devices, the
reset value is factory calibrated to generate an internal oscillator frequency of 24.5 MHz.
Figure 17.3. OSCICL: Internal Oscillator Calibration Register
IFRDY
Figure 17.2. OSCICN: Internal Oscillator Control Register
R/W
Bit6
Bit6
R
R/W
Bit5
Bit5
R
-
R/W
Bit4
Bit4
R
-
Rev. 0.4
R/W
Bit3
Bit3
R
-
R/W
Bit2
Bit2
R
-
IFCN1
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
IFCN0
R/W
R/W
Bit0
Bit0
0xB2
0xB3
11000000
Reset Value
Reset Value
Variable

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