PIC18F1220-I/SO Microchip Technology Inc., PIC18F1220-I/SO Datasheet - Page 7

• Manufacturer Part Number: PIC18F1220-I/SO
• Description: Microcontroller; 4 KB Flash; 256 RAM; 256 EEPROM; 16 I/O; 18-Pin-SOIC
• Manufacturer: Microchip Technology Inc.

Specifications of PIC18F1220-I/SO

• A/d Inputs: 7-Channel, 10-Bit
• Cpu Speed: 10 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 16
• Interface: USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 18-pin SOIC
• Programmable Memory: 4K Bytes
• Ram Size: 256 Bytes
• Speed: 20 MHz
• Timers: 1-8-bit, 3-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

1.0
This document contains device specific information for
the following devices:
This family offers the advantages of all PIC18 microcon-
trollers – namely, high computational performance at an
economical price – with the addition of high endurance
Enhanced Flash program memory. On top of these fea-
tures, the PIC18F1220/1320 family introduces design
enhancements that make these microcontrollers a logical
choice for many high-performance, power sensitive
applications.
1.1
1.1.1
All of the devices in the PIC18F1220/1320 family incor-
porate a range of features that can significantly reduce
power consumption during operation. Key items include:
• Alternate Run Modes: By clocking the controller
• Multiple Idle Modes: The controller can also run
• On-the-fly Mode Switching: The power managed
• Lower Consumption in Key Modules: The power
1.1.2
All of the devices in the PIC18F1220/1320 family offer
nine different oscillator options, allowing users a wide
range of choices in developing application hardware.
These include:
• Four Crystal modes, using crystals or ceramic
• Two External Clock modes, offering the option of
• Two External RC Oscillator modes, with the same
• An internal oscillator block, which provides an
 2004 Microchip Technology Inc.
• PIC18F1220
from the Timer1 source or the internal oscillator
block, power consumption during code execution
can be reduced by as much as 90%.
with its CPU core disabled, but the peripherals are
still active. In these states, power consumption can
be reduced even further, to as little as 4% of normal
operation requirements.
modes are invoked by user code during operation,
allowing the user to incorporate power-saving ideas
into their application’s software design.
requirements for both Timer1 and the Watchdog
Timer have been reduced by up to 80%, with typical
values of 1.1 and 2.1 A, respectively.
resonators.
using two pins (oscillator input and a divide-by-4
clock output), or one pin (oscillator input, with the
second pin reassigned as general I/O).
pin options as the External Clock modes.
8 MHz clock (±2% accuracy) and an INTRC source
(approximately 31 kHz, stable over temperature and
V
frequencies (from 125 kHz to 4 MHz) for a total of
8 clock frequencies.
DD
), as well as a range of 6 user-selectable clock
DEVICE OVERVIEW
New Core Features
nanoWatt TECHNOLOGY
MULTIPLE OSCILLATOR OPTIONS
AND FEATURES
• PIC18F1320
Besides its availability as a clock source, the internal
oscillator block provides a stable reference source that
gives the family additional features for robust
operation:
• Fail-Safe Clock Monitor: This option constantly
• Two-Speed Start-up: This option allows the internal
1.2
• Memory Endurance: The Enhanced Flash cells for
• Self-programmability: These devices can write to
• Enhanced CCP module: In PWM mode, this
• Enhanced USART: This serial communication
• 10-bit A/D Converter: This module incorporates
• Extended Watchdog Timer (WDT): This enhanced
monitors the main clock source against a reference
signal provided by the internal oscillator. If a clock fail-
ure occurs, the controller is switched to the internal
oscillator block, allowing for continued low-speed
operation, or a safe application shutdown.
oscillator to serve as the clock source from Power-
on Reset, or wake-up from Sleep mode, until the
primary clock source is available. This allows for
code execution during what would otherwise be the
clock start-up interval and can even allow an appli-
cation to perform routine background activities and
return to Sleep without returning to full power
operation.
both program memory and data EEPROM are rated
to last for many thousands of erase/write cycles –
up to 100,000 for program memory and 1,000,000
for EEPROM. Data retention without refresh is
conservatively
40 years.
their own program memory spaces under internal
software control. By using a bootloader routine
located in the protected Boot Block at the top of pro-
gram memory, it becomes possible to create an
application that can update itself in the field.
module provides 1, 2 or 4 modulated outputs for
controlling half-bridge and full-bridge drivers. Other
features include auto-shutdown, for disabling PWM
outputs on interrupt or other select conditions and
auto-restart, to reactivate outputs once the condition
has cleared.
module features automatic wake-up on Start bit and
automatic baud rate detection and supports RS-232,
RS-485 and LIN 1.2 protocols, making it ideally
suited for use in Local Interconnect Network (LIN)
bus applications.
programmable acquisition time, allowing for a
channel to be selected and a conversion to be
initiated without waiting for a sampling period and
thus, reduce code overhead.
version incorporates a 16-bit prescaler, allowing a
time-out range from 4 ms to over 2 minutes that is
stable across operating voltage and temperature.
Other Special Features
PIC18F1220/1320
estimated
to
be
DS39605C-page 5
greater
than