C8051F305-GM Silicon Laboratories Inc, C8051F305-GM Datasheet - Page 35

• Manufacturer Part Number: C8051F305-GM
• Description: IC 8051 MCU 2K FLASH 11QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F30xr

Specifications of C8051F305-GM

• Program Memory Type: FLASH
• Program Memory Size: 2KB (2K x 8)
• Package / Case: 11-VQFN
• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 8
• Ram Size: 256 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 256 B
• Interface Type: I2C/SMBus/UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 8
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F300DK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 8 Channel
• No. Of I/o's: 8
• Ram Memory Size: 256Byte
• Cpu Speed: 25MHz
• No. Of Timers: 3
• Rohs Compliant: Yes
• Package: 11QFN EP
• Device Core: 8051
• Family Name: C8051F30x
• Maximum Speed: 25 MHz
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: 770-1006 - ISP 4PORT FOR SILABS C8051F MCU336-1444 - ADAPTER PROGRAM TOOLSTICK F300
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: 336-1251

5.
The ADC0 subsystem for the C8051F300/2 consists of two analog multiplexers (referred to collectively as
AMUX0) with 11 total input selections, a differential programmable gain amplifier (PGA), and a 500 ksps, 8-
bit successive-approximation-register ADC with integrated track-and-hold and programmable window
detector (see block diagram in Figure 5.1). The AMUX0, PGA, data conversion modes, and window detec-
tor are all configurable under software control via the Special Function Registers shown in Figure 5.1.
ADC0 operates in both Single-ended and Differential modes, and may be configured to measure any Port
pin, the Temperature Sensor output, or V
enabled only when the AD0EN bit in the ADC0 Control register (ADC0CN) is set to logic 1. The ADC0 sub-
system is in low power shutdown when this bit is logic 0.
Sensor
Temp
ADC0 (8-Bit ADC, C8051F300/2)
GND
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
VDD
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
AMUX0
Figure 5.1. ADC0 Functional Block Diagram
10-to-1
AMUX
AMUX
9-to-1
DD
with respect to any Port pin or GND. The ADC0 subsystem is
X
Rev. 2.9
+
-
AMX0SL
VDD
ADC0CF
C8051F300/1/2/3/4/5
ADC
VDD
8-Bit
SAR
ADC0GT
ADC0LT
ADC0CN
Conversion
Start
16
8
000
001
010
011
1xx
AD0WINT
Comb.
AD0BUSY (W)
Timer 0 Overflow
Timer 2 Overflow
Timer 1 Overflow
CNVSTR Input
Logic
35