C8051F312R Silicon Labs, C8051F312R Datasheet - Page 142
C8051F312R
Manufacturer Part Number
C8051F312R
Description
8-bit Microcontrollers - MCU 8KB 10ADC
Manufacturer
Silicon Labs
Datasheet
1.C8051F313R.pdf
(228 pages)
Specifications of C8051F312R
Product Category
8-bit Microcontrollers - MCU
Core
8051
Data Bus Width
8 bit
Maximum Clock Frequency
25 MHz
Program Memory Size
8 KB
Data Ram Size
1.25 KB
On-chip Adc
Yes
Operating Supply Voltage
2.7 V to 3.6 V
Package / Case
LQFP-32
Mounting Style
SMD/SMT
A/d Bit Size
10 bit
A/d Channels Available
21
Data Rom Size
128 B
Interface Type
I2C, SMBus, SPI, UART
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Number Of Programmable I/os
29
Number Of Timers
5
On-chip Dac
No
Processor Series
C8051
Program Memory Type
Flash
Factory Pack Quantity
500
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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C8051F310/1/2/3/4/5/6/7
142
Note:
Note:
Bits7–0: P3.[7:0]
Bits7–5: UNUSED. Read = 000b; Write = don’t care.
Bits4–0: Input Configuration Bits for P3.4–P3.0 (respectively).
P3.7
R/W
R/W
Bit7
Bit7
-
Write - Output appears on I/O pins.
0: Logic Low Output.
1: Logic High Output (high impedance if corresponding P3MDOUT.n bit = 0).
Read - Always reads ‘1’ if selected as analog input in register P3MDIN. Directly reads Port
pin when configured as digital input.
0: P3.n pin is logic low.
1: P3.n pin is logic high.
Only P3.0–P3.4 are associated with Port pins on C8051F310/2/4 devices; Only P3.0 is associated with a
Port pin on C8051F311/3/5/6/7 devices.
Port pins configured as analog inputs have their weak pullup, digital driver, and digital
receiver disabled.
0: Corresponding P3.n pin is configured as an analog input.
1: Corresponding P3.n pin is not configured as an analog input.
Only P3.0–P3.4 are associated with Port pins on C8051F310/2/4 devices; Only P3.0 is associated with a
Port pin on C8051F311/3/5/6/7 devices.
P3.6
R/W
R/W
Bit6
Bit6
-
SFR Definition 13.16. P3MDIN: Port3 Input Mode
P3.5
R/W
R/W
Bit5
Bit5
-
SFR Definition 13.15. P3: Port3
P3.4
R/W
R/W
Bit4
Bit4
Rev. 1.7
P3.3
R/W
R/W
Bit3
Bit3
P3.2
R/W
R/W
Bit2
Bit2
P3.1
R/W
R/W
Bit1
Bit1
(bit addressable)
P3.0
R/W
R/W
Bit0
Bit0
SFR Address:
SFR Address:
Reset Value
Reset Value
11111111
11111111
0xB0
0xF4
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