PIC18F14K22-E/ML Microchip Technology, PIC18F14K22-E/ML Datasheet - Page 229

• Manufacturer Part Number: PIC18F14K22-E/ML
• Description: 16KB Flash, 512bytes RAM, 256bytes EEPROM, 16MIPS, 1.8-5.5V Operation 20 QFN 4x4
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 18Fr

Specifications of PIC18F14K22-E/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 12x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

17.7
A simplified circuit for an analog input is shown in
Figure 17-6. Since the analog input pins share their
connection with a digital input, they have reverse
biased ESD protection diodes to V
analog input, therefore, must be between V
If the input voltage deviates from this range by more
than 0.6V in either direction, one of the diodes is
forward biased and a latch-up may occur.
A maximum source impedance of 10 k is recommended
for the analog sources. Also, any external component
connected to an analog input pin, such as a capacitor or
a Zener diode, should have very little leakage current to
minimize inaccuracies introduced.
FIGURE 17-6:
 2010 Microchip Technology Inc.
Analog Input Connection
Considerations
Legend: C
V
Note 1: See Section 25.0 “Electrical Specifications”.
A
Rs < 10K
I
R
R
V
V
LEAKAGE
A
T
PIN
IC
S
ANALOG INPUT MODEL
A
IN
= Input Capacitance
= Leakage Current at the pin due to various junctions
= Interconnect Resistance
= Source Impedance
= Analog Voltage
= Threshold Voltage
C
5 pF
PIN
DD
and V
SS
V
and V
SS
DD
. The
V
V
T
T
Preliminary
DD
 0.6V
 0.6V
.
PIC18F1XK22/LF1XK22
Note 1: When reading a PORT register, all pins
I
Vss
LEAKAGE
2: Analog levels on any pin defined as a
R
configured as analog inputs will read as a
‘0’. Pins configured as digital inputs will
convert as an analog input, according to
the input specification.
digital input, may cause the input buffer to
consume more current than is specified.
IC
(1)
DS41365D-page 229