PIC12LF1822T-I/SN Microchip Technology, PIC12LF1822T-I/SN Datasheet - Page 119

• Manufacturer Part Number: PIC12LF1822T-I/SN
• Description: 3.5 KB Flash, 128 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core, Na
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 12Fr

Specifications of PIC12LF1822T-I/SN

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 3.6 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-SOIC (3.9mm Width)
• Processor Series: PIC12LF
• Core: PIC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

12.0
Depending on the device selected and peripherals
enabled, there are up to two ports available. In general,
when a peripheral is enabled, that pin may not be used
as a general purpose I/O pin.
Each port has three standard registers for its operation.
These registers are:
• TRISx registers (data direction)
• PORTx registers (reads the levels on the pins of
• LATx registers (output latch)
Some ports may have one or more of the following
additional registers. These registers are:
• ANSELx (analog select)
• WPUx (weak pull-up)
• INLVLx (input level control)
TABLE 12-1:
The Data Latch (LATx registers) is useful for
read-modify-write operations on the value that the I/O
pins are driving.
A write operation to the LATx register has the same
affect as a write to the corresponding PORTx register.
A read of the LATx register reads of the values held in
the I/O PORT latches, while a read of the PORTx
register reads the actual I/O pin value.
Ports with analog functions also have an ANSELx
register which can disable the digital input and save
power. A simplified model of a generic I/O port, without
the interfaces to other peripherals, is shown in
Figure
 2010 Microchip Technology Inc.
Device
PIC12F/LF1822
PIC16F/LF1823
the device)
12-1.
I/O PORTS
PORT AVAILABILITY PER
DEVICE
PIC12F/LF1822/PIC16F/LF1823
●
●
●
Preliminary
FIGURE 12-1:
To peripherals
Write PORTx
Write LATx
Data Bus
Read PORTx
Data Register
D
CK
Read LATx
ANSELx
GENERIC I/O PORT
OPERATION
Q
TRISx
DS41413B-page 119
V
V
DD
SS
I/O pin