PIC16LC554-04/SO Microchip Technology, PIC16LC554-04/SO Datasheet - Page 29
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PIC16LC554-04/SO
Manufacturer Part Number
PIC16LC554-04/SO
Description
IC MCU OTP 512X14 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheet
1.PIC16C554-04P.pdf
(108 pages)
Specifications of PIC16LC554-04/SO
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
POR, WDT
Number Of I /o
13
Program Memory Size
896B (512 x 14)
Program Memory Type
OTP
Ram Size
80 x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
18-SOIC (7.5mm Width)
Processor Series
PIC16LC
Core
PIC
Data Bus Width
8 bit
Data Ram Size
80 B
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
13
Number Of Timers
8
Maximum Operating Temperature
+ 70 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52715-96, 52716-328, 52717-734
Development Tools By Supplier
ICE2000
Minimum Operating Temperature
0 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
Lead Free Status / Rohs Status
Details
5.3
PORTC is a 8-bit wide latch. All pins have data direc-
tion bits (TRIS registers) which can configure these
pins as input or output.
A '1' in the TRISC register puts the corresponding out-
put driver in a Hi-impedance mode. A '0' in the TRISC
register puts the contents of the output latch on the
selected pin(s).
Reading the PORTC register reads the status of the
pins, whereas writing to it will write to the port latch. All
write operations are read-modify-write operations. So a
write to a port implies that the port pins are first read,
then this value is modified and written to the port data
latch
TABLE 5-5:
TABLE 5-6:
2002 Microchip Technology Inc.
RC0
RC1
RC2
RC3
RC4
RC5
RC6
RC7
Legend:
07h
87h
Legend:
Note
Address
Name
1:
PORTC and TRISC Registers
x = unknown, u = unchanged
ST = Schmitt Trigger, TTL = TTL input
PORTC
TRISC
PIC16C557 ONLY.
Name
Bit #
Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
PORTC FUNCTIONS
SUMMARY OF REGISTERS ASSOCIATED WITH PORTC AND TRISC
TRISC7
Bit 7
RC7
Buffer Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TRISC6
Bit 6
RC6
TRISC5
Bi-directional I/O port.
Bi-directional I/O port.
Bi-directional I/O port.
Bi-directional I/O port.
Bi-directional I/O port.
Bi-directional I/O port.
Bi-directional I/O port.
Bi-directional I/O port.
Bit 5
RC5
(1)
TRISC4
Preliminary
Bit 4
RC4
TRISC3
Bit 3
RC3
FIGURE 5-5:
PORTC
TRISC
Data
Bus
WR
WR
RD PORTC
TRISC2
Bit 2
RC2
Data Latch
TRIS Latch
TRISC1
D
CK
D
CK
Function
Bit 1
RC1
Q
Q
Q
Q
TRISC0
RD TRISC
Bit 0
RC0
BLOCK DIAGRAM OF
PORT PINS RC<7:0>
PIC16C55X
Q
xxxx xxxx
1111 1111
Value on
POR
EN
D
DS40143D-page 27
TTL
V
Input
Buffer
V
P
N
SS
DD
uuuu uuuu
1111 1111
Value on
All Other
RESETS
V
V
DD
SS
I/O pin