PIC18F1320-H/ML Microchip Technology, PIC18F1320-H/ML Datasheet - Page 15
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18F1320-H/ML
Manufacturer Part Number
PIC18F1320-H/ML
Description
IC MCU 8BIT 8KB FLASH 28QFN
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheet
1.PIC18F1220-ISO.pdf
(308 pages)
Specifications of PIC18F1320-H/ML
Core Processor
PIC
Core Size
8-Bit
Speed
25MHz
Connectivity
UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
16
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 7x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 150°C
Package / Case
28-VQFN Exposed Pad
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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2.4
The EC and ECIO Oscillator modes require an external
clock source to be connected to the OSC1 pin. There is
no oscillator start-up time required after a Power-on
Reset, or after an exit from Sleep mode.
In the EC Oscillator mode, the oscillator frequency
divided by 4 is available on the OSC2 pin. This signal
may be used for test purposes, or to synchronize other
logic. Figure 2-4 shows the pin connections for the EC
Oscillator mode.
FIGURE 2-4:
The ECIO Oscillator mode functions like the EC mode,
except that the OSC2 pin becomes an additional gen-
eral purpose I/O pin. The I/O pin becomes bit 6 of
PORTA (RA6). Figure 2-5 shows the pin connections
for the ECIO Oscillator mode.
FIGURE 2-5:
© 2007 Microchip Technology Inc.
Clock from
Ext. System
Clock from
Ext. System
External Clock Input
F
RA6
OSC
/4
EXTERNAL CLOCK INPUT
OPERATION
(EC CONFIGURATION)
EXTERNAL CLOCK INPUT
OPERATION
(ECIO CONFIGURATION)
OSC1/CLKI
OSC2/CLKO
OSC1/CLKI
I/O (OSC2)
PIC18FXXXX
PIC18FXXXX
2.5
For timing insensitive applications, the “RC” and
“RCIO” device options offer additional cost savings.
The RC oscillator frequency is a function of the supply
voltage, the resistor (R
ues and the operating temperature. In addition to this,
the oscillator frequency will vary from unit to unit due to
normal manufacturing variation. Furthermore, the dif-
ference in lead frame capacitance between package
types will also affect the oscillation frequency, espe-
cially for low C
into account variation, due to tolerance of external
R and C components used. Figure 2-6 shows how the
R/C combination is connected.
In the RC Oscillator mode, the oscillator frequency
divided by 4 is available on the OSC2 pin. This signal
may be used for test purposes, or to synchronize other
logic.
FIGURE 2-6:
The RCIO Oscillator mode (Figure 2-7) functions like
the RC mode, except that the OSC2 pin becomes an
additional general purpose I/O pin. The I/O pin
becomes bit 6 of PORTA (RA6).
FIGURE 2-7:
C
V
C
Recommended values: 3 kΩ ≤ R
V
R
Recommended values: 3 kΩ ≤ R
R
EXT
SS
EXT
SS
EXT
EXT
V
V
DD
DD
RC Oscillator
PIC18F1220/1320
RA6
EXT
F
OSC
values. The user also needs to take
/4
RC OSCILLATOR MODE
OSC1
RCIO OSCILLATOR MODE
OSC1
OSC2/CLKO
I/O (OSC2)
EXT
C
C
EXT
EXT
) and capacitor (C
> 20 pF
> 20 pF
EXT
EXT
≤ 100 kΩ
≤ 100 kΩ
DS39605F-page 13
PIC18FXXXX
PIC18FXXXX
Internal
Internal
Clock
Clock
EXT
) val-
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