C8051F537-ITR Silicon Labs, C8051F537-ITR Datasheet - Page 132

• Manufacturer Part Number: C8051F537-ITR
• Description: 8-bit Microcontrollers - MCU 2KB 12ADC 125C 20Pin MCU
• Manufacturer: Silicon Labs

Specifications of C8051F537-ITR

• Product Category: 8-bit Microcontrollers - MCU
• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 25 MHz
• Program Memory Size: 2 KB
• Data Ram Size: 256 B
• On-chip Adc: Yes
• Package / Case: TSSOP-20
• Mounting Style: SMD/SMT
• A/d Bit Size: 12 bit
• A/d Channels Available: 16
• Interface Type: SPI, UART
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Number Of Programmable I/os: 16
• Number Of Timers: 3
• On-chip Dac: No
• Processor Series: C8051
• Program Memory Type: Flash
• Factory Pack Quantity: 2500
• Supply Voltage - Max: 2.7 V, 5.25 V
• Supply Voltage - Min: 2 V, 2.7 V

C8051F52x/F53x
SFR Definition 13.9. P1: Port1
SFR Definition 13.10. P1MDIN: Port1 Input Mode
132
Bits7–0: P1.[7:0]
Bits7–0: Analog Input Configuration Bits for P1.7–P1.0 (respectively).
P1.7
R/W
R/W
Bit7
Bit7
Write - Output appears on I/O pins per Crossbar Registers.
0: Logic Low Output.
1: Logic High Output (high impedance if corresponding P1MDOUT.n bit = 0).
Read - Always reads 0 if selected as analog input in register P1MDIN. Directly reads Port
pin when configured as digital input.
0: P1.n pin is logic low.
1: P1.n pin is logic high.
Port pins configured as analog inputs have their weak pullup, digital driver, and digital
receiver disabled.
0: Corresponding P1.n pin is configured as an analog input.
1: Corresponding P1.n pin is not configured as an analog input.
P1.6
R/W
R/W
Bit6
Bit6
P1.5
R/W
R/W
Bit5
Bit5
P1.4
R/W
R/W
Bit4
Bit4
Rev. 1.4
P1.3
R/W
R/W
Bit3
Bit3
P1.2
R/W
R/W
Bit2
Bit2
P1.1
R/W
R/W
Bit1
Bit1
SFR Address:
SFR Address:
P1.0
R/W
R/W
Bit0
Bit0
Addressable
Reset Value
Reset Value
11111111
11111111
0x90
0xF2
Bit