PIC18F2331/2431/4331/4431
All other features for devices in this family are identical.
These are summarized in Table 1-1.
1.3
Details on Individual Family
Members
The pinouts for all devices are listed in Table 1-2 and
Table 1-3.
Devices in the PIC18F2331/2431/4331/4431 family are
available in 28-pin (PIC18F2331/2431) and 40/44-pin
(PIC18F4331/4431) packages. The block diagram for
the two groups is shown in Figure 1-1.
Like all Microchip PIC18 devices, members of the
PIC18F2331/2431/4331/4431 family are available as
both standard and low-voltage devices. Standard
devices with Enhanced Flash memory, designated with
an “F” in the part number (such as PIC18F2331),
accommodate an operating VDD range of 4.2V to 5.5V.
Low-voltage parts, designated by “LF” (such as
PIC18LF2331), function over an extended VDD range
of 2.0V to 5.5V.
The devices are differentiated from each other in three
ways:
1. Flash program memory (8 Kbytes for
PIC18F2331/4331 devices, 16 Kbytes for
PIC18F2431/4431).
2. A/D channels (5 for PIC18F2331/2431 devices,
9 for PIC18F4331/4431 devices).
3. I/O ports (3 bidirectional ports on PIC18F2331/
2431 devices,
5
bidirectional ports on
PIC18F4331/4431 devices).
TABLE 1-1:
DEVICE FEATURES
Features
PIC18F2331
PIC18F2431
PIC18F4331
PIC18F4431
Operating Frequency
Program Memory (Bytes)
Program Memory (Instructions)
Data Memory (Bytes)
Data EEPROM Memory (Bytes)
Interrupt Sources
DC – 40 MHz
DC – 40 MHz
DC – 40 MHz
DC – 40 MHz
16384
8192
8192
16384
8192
4096
768
256
34
4096
8192
768
768
768
256
256
256
22
22
34
I/O Ports
Ports A, B, C
Ports A, B, C
Ports A, B, C, D, E Ports A, B, C, D, E
Timers
4
4
4
4
Capture/Compare/PWM modules
14-Bit Power Control PWM
2
2
2
2
(6 Channels)
(6 Channels)
(8 Channels)
(8 Channels)
Motion Feedback Module
(Input Capture/Quadrature
Encoder Interface)
1 QEI
or
3x IC
1 QEI
or
3x IC
1 QEI
or
3x IC
1 QEI
or
3x IC
Serial Communications
SSP,
SSP,
SSP,
SSP,
Enhanced USART Enhanced USART Enhanced USART Enhanced USART
10-Bit High-Speed
5 Input Channels 5 Input Channels 9 Input Channels 9 Input Channels
Analog-to-Digital Converter module
Resets (and Delays)
POR, BOR,
POR, BOR,
POR, BOR,
POR, BOR,
RESETInstruction, RESETInstruction, RESETInstruction, RESETInstruction,
Stack Full,
Stack Underflow
(PWRT, OST),
Stack Full,
Stack Underflow
(PWRT, OST),
Stack Full,
Stack Underflow
(PWRT, OST),
Stack Full,
Stack Underflow
(PWRT, OST),
MCLR (optional), MCLR (optional), MCLR (optional), MCLR (optional),
WDT
WDT
WDT
WDT
Programmable Low-Voltage Detect
Programmable Brown-out Reset
Instruction Set
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
75 Instructions
75 Instructions
75 Instructions
75 Instructions
Packages
28-pin SPDIP
28-pin SOIC
28-pin QFN
28-pin SPDIP
28-pin SOIC
28-pin QFN
40-pin PDIP
44-pin TQFP
44-pin QFN
40-pin PDIP
44-pin TQFP
44-pin QFN
2010 Microchip Technology Inc.
DS39616D-page 13
MICROCHIP [ MICROCHIP ]
