Datasheet

PIC18F1220/1320
DS39605F-page 6 © 2007 Microchip Technology Inc.
1.3 Details on Individual Family
Members
Devices in the PIC18F1220/1320 family are available
in 18-pin, 20-pin and 28-pin packages. A block diagram
for this device family is shown in Figure 1-1.
The devices are differentiated from each other only in
the amount of on-chip Flash program memory
(4 Kbytes for the PIC18F1220 device, 8 Kbytes for the
PIC18F1320 device). These and other features are
summarized in Table 1-1.
A block diagram of the PIC18F1220/1320 device
architecture is provided in Figure 1-1. The pinouts for
this device family are listed in Table 1-2.
TABLE 1-1: DEVICE FEATURES
Features PIC18F1220 PIC18F1320
Operating Frequency DC – 40 MHz DC – 40 MHz
Program Memory (Bytes) 4096 8192
Program Memory (Instructions) 2048 4096
Data Memory (Bytes) 256 256
Data EEPROM Memory (Bytes) 256 256
Interrupt Sources 15 15
I/O Ports Ports A, B Ports A, B
Timers 4 4
Enhanced Capture/Compare/PWM Modules 1 1
Serial Communications Enhanced USART Enhanced USART
10-bit Analog-to-Digital Module 7 input channels 7 input channels
Resets (and Delays)
POR, BOR,
RESET Instruction, Stack Full,
Stack Underflow (PWRT, OST),
MCLR
(optional), WDT
POR, BOR,
RESET Instruction, Stack Full,
Stack Underflow (PWRT, OST),
MCLR (optional), WDT
Programmable Low-Voltage Detect Yes Yes
Programmable Brown-out Reset Yes Yes
Instruction Set 75 Instructions 75 Instructions
Packages
18-pin SDIP
18-pin SOIC
20-pin SSOP
28-pin QFN
18-pin SDIP
18-pin SOIC
20-pin SSOP
28-pin QFN