PIC12CE519/JW Microchip Technology, PIC12CE519/JW Datasheet - Page 142
![IC MCU EPROM 1KX12 W/EE 8CDIP](/photos/12/23/122362/pic12ce519_jw_sml.jpg)
PIC12CE519/JW
Manufacturer Part Number
PIC12CE519/JW
Description
IC MCU EPROM 1KX12 W/EE 8CDIP
Manufacturer
Microchip Technology
Series
PIC® 12Cr
Datasheets
1.PIC16F688T-ISL.pdf
(688 pages)
2.PIC12C508A-04SM.pdf
(113 pages)
3.PIC12C508A-04SM.pdf
(4 pages)
4.PIC12CE518-04SM.pdf
(16 pages)
Specifications of PIC12CE519/JW
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
5
Program Memory Size
1.5KB (1K x 12)
Program Memory Type
EPROM, UV
Eeprom Size
16 x 8
Ram Size
41 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
8-CDIP (0.300", 7.62mm) Window
For Use With
ISPICR1 - ADAPTER IN-CIRCUIT PROGRAMMINGDVA12XP080 - ADAPTER DEVICE FOR MPLAB-ICEAC124001 - MODULE SKT PROMATEII 8DIP/SOIC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Connectivity
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
PIC12CE519/JW
Manufacturer:
MICROCH
Quantity:
20 000
- PIC16F688T-ISL PDF datasheet
- PIC12C508A-04SM PDF datasheet #2
- PIC12C508A-04SM PDF datasheet #3
- PIC12CE518-04SM PDF datasheet #4
- Current page: 142 of 688
- Download datasheet (3Mb)
PICmicro MID-RANGE MCU FAMILY
9.1
DS31009A-page 9-2
Introduction
General purpose I/O pins can be considered the simplest of peripherals. They allow the
PICmicro™ to monitor and control other devices. To add flexibility and functionality to a device,
some pins are multiplexed with an alternate function(s). These functions depend on which
peripheral features are on the device. In general, when a peripheral is functioning, that pin may
not be used as a general purpose I/O pin.
For most ports, the I/O pin’s direction (input or output) is controlled by the data direction register,
called the TRIS register. TRIS<x> controls the direction of PORT<x>. A ‘1’ in the TRIS bit corre-
sponds to that pin being an input, while a ‘0’ corresponds to that pin being an output. An easy
way to remember is that a ‘1’ looks like an I (input) and a ‘0’ looks like an O (output).
The PORT register is the latch for the data to be output. When the PORT is read, the device reads
the levels present on the I/O pins (not the latch). This means that care should be taken with
read-modify-write commands on the ports and changing the direction of a pin from an input to an
output.
Figure 9-1
be multiplexed onto the I/O pin. Reading the PORT register reads the status of the pins whereas
writing to it will write to the port latch. All write operations (such as BSF and BCF instructions) are
read-modify-write operations. Therefore a write to a port implies that the port pins are read, this
value is modified, and then written to the port data latch.
Figure 9-1: Typical I/O Port
WR PORT
WR TRIS
RD PORT
Data bus
Note: I/O pin has protection diodes to V
shows a typical I/O port. This does not take into account peripheral functions that may
Data Latch
TRIS Latch
D
CK
D
CK
RD TRIS
Q
Q
Q
Q
DD
and V
Q
SS
EN
.
D
V
V
P
N
DD
SS
1997 Microchip Technology Inc.
Trigger
Schmitt
TTL or
I/O pin
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