PIC18F65J94 View Datasheet(PDF) - Microchip Technology

Part Name

Description

Manufacturer

PIC18F65J94

8-Bit LCD Flash Microcontroller with USB and XLP Technology

Microchip Technology 

PIC18F97J94 FAMILY

1.1.3 MEMORY OPTIONS

The PIC18F97J94 family provides ample room for

application code, from 32 Kbytes to 128 Kbytes of code

space. The Flash cells for program memory are rated

to last up to 20,000 erase/write cycles. Data retention

without refresh is conservatively estimated to be

greater than 10 years.

The Flash program memory is readable and writable.

During normal operation, the PIC18F97J94 family also

provides plenty of room for dynamic application data

with up to 3,578 bytes of data RAM.

1.1.4 UNIVERSAL SERIAL BUS (USB)

Devices in the PIC18F97J94 family incorporate a

fully-featured USB communications module with a

built-in transceiver that is compliant with the USB

Specification Revision 2.0. The module supports both

low-speed and full-speed communication for all

supported data transfer types.

1.1.5 EXTERNAL MEMORY BUS

Should 128 Kbytes of memory be inadequate for an

application, the 80-pin and 100-pin members of the

PIC18F97J94 family have an External Memory Bus

(EMB), enabling the controller’s internal Program

Counter to address a memory space of up to 2 Mbytes.

This is a level of data access that few 8-bit devices can

claim and enables:

• Using combinations of on-chip and external

memory of up to 2 Mbytes

• Using external Flash memory for reprogrammable

application code or large data tables

• Using external RAM devices for storing large

amounts of variable data

1.1.6 EXTENDED INSTRUCTION SET

The PIC18F97J94 family implements the optional

extension to the PIC18 instruction set, adding eight

new instructions and an Indexed Addressing mode.

Enabled as a device configuration option, the extension

has been specifically designed to optimize re-entrant

application code originally developed in high-level

languages, such as ‘C’.

1.1.7 EASY MIGRATION

All devices share the same rich set of peripherals. This

provides a smooth migration path within the device

family as applications evolve and grow.

The consistent pinout scheme, used throughout the

entire family, also aids in migrating to the next larger

device. This is true when moving between the 64-pin

members, between the 80-pin members, between the

100-pin members or even jumping from 64-pin to

80-pin to 100-pin devices.

The PIC18F97J94 family is also largely pin compatible

with other PIC18 families, such as the PIC18F87J90,

PIC18F87J11 and the PIC18F87J50. This allows a new

dimension to the evolution of applications, allowing

developers to select different price points within

Microchip’s PIC18 portfolio, while maintaining a similar

feature set.

1.2 LCD Controller

The on-chip LCD driver includes many features that

make the integration of displays in low-power applica-

tions easier. These include an integrated voltage regu-

lator with charge pump and an integrated internal

resistor ladder that allows contrast control in software

and display operation above device VDD.

DS30575A-page 10

 2012 Microchip Technology Inc.

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