C8051F346-GQ Silicon Laboratories Inc, C8051F346-GQ Datasheet - Page 51
![IC 8051 MCU FLASH 64K 32LQFP](/photos/12/18/121867/c8051f346-gq_sml.jpg)
C8051F346-GQ
Manufacturer Part Number
C8051F346-GQ
Description
IC 8051 MCU FLASH 64K 32LQFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F34xr
Datasheets
1.C8051F349-GQ.pdf
(276 pages)
2.C8051F346-GQ.pdf
(1 pages)
3.C8051F347-GQ.pdf
(296 pages)
Specifications of C8051F346-GQ
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
32-LQFP
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 3.6 V
Data Converters
A/D 21x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F3x
Core
8051
Data Bus Width
8 bit
Data Ram Size
5.25 KB
Interface Type
I2C/SMBus/SPI/UART/USB
Maximum Clock Frequency
25 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Operating Supply Voltage
2.7 V to 5.25 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
KSK-SL-F34X, KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F340DK
Minimum Operating Temperature
- 40 C
On-chip Adc
17-ch x 10-bit
No. Of I/o's
25
Ram Memory Size
4352Byte
Cpu Speed
25MHz
No. Of Timers
4
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1748 - ADAPTER TOOLSTICK FOR C8051F34X770-1006 - ISP 4PORT FOR SILABS C8051F MCU
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1304
Available stocks
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Quantity
Price
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Part Number:
C8051F346-GQ
Manufacturer:
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Quantity:
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Part Number:
C8051F346-GQ
Manufacturer:
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5.2.
The temperature sensor transfer function is shown in Figure 5.2. The output voltage (V
ADC input when the temperature sensor is selected by bits AMX0P4-0 in register AMX0P. Values for the
Offset and Slope parameters can be found in Table 5.1.
The uncalibrated temperature sensor output is extremely linear and suitable for relative temperature mea-
surements (see Table 5.1 for linearity specifications). For absolute temperature measurements, offset and/
or gain calibration is recommended. Typically a 1-point (offset) calibration includes the following steps:
Figure 5.3 shows the typical temperature sensor error assuming a 1-point calibration at 25 °C. Note that
parameters which affect ADC measurement, in particular the voltage reference value, will also
affect temperature measurement.
Temperature Sensor
Step 1. Control/measure the ambient temperature (this temperature must be known).
Step 2. Power the device, and delay for a few seconds to allow for self-heating.
Step 3. Perform an ADC conversion with the temperature sensor selected as the positive input
Step 4. Calculate the offset characteristics, and store this value in non-volatile memory for use
and GND selected as the negative input.
with subsequent temperature sensor measurements.
Figure 5.2.
V
Temp
TEMP
C
=
= (V
Temperature Sensor Transfer Function
(Gain
TEMP
x Temp
- Offset) /
C8051F340/1/2/3/4/5/6/7/8/9
Temperature
Rev. 1.1
C
) +
Offset
Offset
Gain
(V at 0 Celsius)
Gain
(V / deg C)
TEMP
) is the positive
51
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