C8051F706-GQ Silicon Laboratories Inc, C8051F706-GQ Datasheet - Page 70
![IC 8051 MCU 16K FLASH 48-TQFP](/photos/12/17/121753/c8051f706-gq_sml.jpg)
C8051F706-GQ
Manufacturer Part Number
C8051F706-GQ
Description
IC 8051 MCU 16K FLASH 48-TQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F70xr
Specifications of C8051F706-GQ
Program Memory Type
FLASH
Program Memory Size
16KB (16K x 8)
Package / Case
48-TQFP, 48-VQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Cap Sense, POR, PWM, Temp Sensor, WDT
Number Of I /o
39
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F7x
Core
8051
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
39
Number Of Timers
4 x 16 bit
Operating Supply Voltage
1.8 V to 3.3 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F700DK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 16 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1635 - DEV KIT FOR C8051F700
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1636
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F706-GQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F706-GQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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- Download datasheet (2Mb)
C8051F70x/71x
12.1. External Voltage References
To use an external voltage reference, REFSL[1:0] should be set to 00. Bypass capacitors should be added
as recommended by the manufacturer of the external voltage reference.
12.2. Internal Voltage Reference Options
A 1.6 V high-speed reference is included on-chip. The high speed internal reference is selected by setting
REFSL[1:0] to 11. When selected, the high-speed internal reference will be automatically enabled on an
as-needed basis by ADC0.
For applications with a non-varying power supply voltage, using the power supply as the voltage reference
can provide ADC0 with added dynamic range at the cost of reduced power supply noise rejection. To use
the 1.8 to 3.6 V power supply voltage (V
) or the 1.8 V regulated digital supply voltage as the reference
DD
source, REFSL[1:0] should be set to 01 or 10, respectively.
12.3. Analog Ground Reference
To prevent ground noise generated by switching digital logic from affecting sensitive analog measure-
ments, a separate analog ground reference option is available. When enabled, the ground reference for
ADC0 is taken from the P0.1/AGND pin. Any external sensors sampled by ADC0 should be referenced to
the P0.1/AGND pin. The separate analog ground reference option is enabled by setting REFGND to 1.
Note that when using this option, P0.1/AGND must be connected to the same potential as GND.
12.4. Temperature Sensor Enable
The TEMPE bit in register REF0CN enables the temperature sensor. While disabled, the temperature sen-
sor defaults to a high impedance state and any ADC0 measurements performed on the sensor result in
meaningless data.
70
Rev. 1.0
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