C8051F313R Silicon Labs, C8051F313R Datasheet - Page 31
C8051F313R
Manufacturer Part Number
C8051F313R
Description
8-bit Microcontrollers - MCU 8KB 10ADC
Manufacturer
Silicon Labs
Datasheet
1.C8051F313R.pdf
(228 pages)
Specifications of C8051F313R
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
QFN-28
Mounting Style
SMD/SMT
A/d Bit Size
10 bit
A/d Channels Available
17
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
25
Number Of Timers
5
On-chip Dac
No
Processor Series
C8051
Program Memory Type
Flash
Factory Pack Quantity
1500
Supply Voltage - Max
3.6 V
Supply Voltage - Min
2.7 V
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1.4.
C8051F310/2/4 devices include 29 I/O pins (three byte-wide Ports and one 5-bit-wide Port);
C8051F311/3/5 devices include 25 I/O pins (three byte-wide Ports and one 1-bit-wide Port); C8051F316/7
devices include 21 I/O pins (one byte-wide Port, two 6-bit-wide Ports and one 1-bit-wide Port). The
C8051F31x Ports behave like typical 8051 Ports with a few enhancements. Each Port pin may be config-
ured as an analog input or a digital I/O pin. Pins selected as digital I/Os may additionally be configured for
push-pull or open-drain output. The “weak pullups” that are fixed on typical 8051 devices may be globally
disabled, providing power savings capabilities.
The Digital Crossbar allows mapping of internal digital system resources to Port I/O pins (See Figure 1.13).
On-chip counter/timers, serial buses, HW interrupts, comparator output, and other digital signals in the
controller can be configured to appear on the Port I/O pins specified in the Crossbar Control registers. This
allows the user to select the exact mix of general purpose Port I/O and digital resources needed for the
particular application.
Programmable Digital I/O and Crossbar
Highest
Priority
Lowest
Priority
SYSCLK
Outputs
Outputs
SMBus
UART
T0, T1
P0
P1
P2
P3
PCA
CP0
CP1
SPI
(P0.0-P0.7)
(P1.0-P1.7)
(P2.0-P2.3)
(P2.4-P2.7)
(P3.0-P3.4)
Figure 1.13. Digital Crossbar Diagram
2
4
2
2
2
6
2
8
8
4
4
5
Rev. 1.7
PnSKIP Registers
XBR0, XBR1,
Crossbar
Decoder
Priority
Digital
C8051F310/1/2/3/4/5/6/7
4
4
8
8
PnMDIN Registers
8
5
Notes:
1. P3.1–P3.4 only available on the
C8051F310/2/4.
2. P1.6, P1.7, P2.6, P2.7 only
available on the C8051F310/1/2/3/4/5
PnMDOUT,
Cells
Cells
Cells
Cells
I/O
I/O
I/O
I/O
P0
P1
P2
P3
P0.0
P1.0
P0.7
P1.7
P2.0
P2.7
P3.0
P3.4
31
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