C8051F047R Silicon Labs, C8051F047R Datasheet - Page 203

• Manufacturer Part Number: C8051F047R
• Description: 8-bit Microcontrollers - MCU 25 MIPS 32KB 10ADC
• Manufacturer: Silicon Labs

Specifications of C8051F047R

• Product Category: 8-bit Microcontrollers - MCU
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 32 KB
• Data Ram Size: 4.25 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 2.7 V to 3.6 V
• Package / Case: TQFP-64
• Mounting Style: SMD/SMT
• A/d Bit Size: 10 bit
• A/d Channels Available: 13
• Data Rom Size: 64 KB
• Interface Type: CAN, SMBus, SPI, UART
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 32
• Number Of Timers: 16 bit
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 500
• Supply Voltage - Max: 3.6 V
• Supply Voltage - Min: 2.7 V

17. Port Input/Output
The C8051F04x family of devices are fully integrated mixed-signal System on a Chip MCUs with 64 digital
I/O pins (C8051F040/2/4/6) or 32 digital I/O pins (C8051F041/3/5/7), organized as 8-bit Ports. All ports are
both bit- and byte-addressable through their corresponding Port Data registers. All Port pins are 5 V-toler-
ant, and all support configurable Open-Drain or Push-Pull output modes and weak pullups. A block dia-
gram of the Port I/O cell is shown in Figure 17.1. Complete Electrical Specifications for the Port I/O pins
are given in Table 17.1.
Table 17.1. Port I/O DC Electrical Characteristics
V
Output High Voltage
(V
Output Low Voltage
(V
Input High Voltage (VIH)
Input Low Voltage (VIL)
Input Leakage Current
Input Capacitance
DD
OH
OL
PORT-INPUT
/WEAK-PULLUP
PUSH-PULL
/PORT-OUTENABLE
PORT-OUTPUT
ANALOG INPUT
= 2.7 to 3.6 V, –40 to +85 °C unless otherwise specified.
)
)
Parameter
Analog Select
(Ports 1, 2, and 3)
I
I
I
I
I
I
DGND < Port Pin < V
Weak Pullup Off
Weak Pullup On
OH
OH
OH
OL
OL
OL
Figure 17.1. Port I/O Cell Block Diagram
= 8.5 mA
= 10 µA
= 25 mA
= –3 mA, Port I/O Push-Pull
= –10 µA, Port I/O Push-Pull
= –10 mA, Port I/O Push-Pull
Conditions
DD
Rev. 1.5
, Pin Tri-state
C8051F040/1/2/3/4/5/6/7
DGND
V
V
0.7 x V
VDD
DD
DD
Min
—
—
—
—
—
—
—
—
—
– 0.7
– 0.1
DD
V
DD
VDD
Typ
1.0
10
—
—
—
—
—
—
—
—
5
(WEAK)
– 0.8
0.3 x V
Max
0.6
0.1
± 1
—
—
—
—
—
—
—
—
DD
PORT
PAD
Units
µA
pF
V
V
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