PIC16LC554-04E/SO Microchip Technology, PIC16LC554-04E/SO Datasheet - Page 50
![IC MCU OTP 512X14 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC16LC554-04E/SO
Manufacturer Part Number
PIC16LC554-04E/SO
Description
IC MCU OTP 512X14 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheet
1.PIC16C554-04P.pdf
(108 pages)
Specifications of PIC16LC554-04E/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
-40°C ~ 125°C
Package / Case
18-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
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PIC16C55X
FIGURE 7-3:
FIGURE 7-4:
DS40143D-page 48
Instruction
PC
(Program
Counter)
Fetch
Instruction
Execute
TMR0
GIE bit
(INTCON<7>)
INSTRUCTION FLOW
T0IF bit
(INTCON<2>)
Instruction
fetched
Instruction
executed
TMR0 timer
Note
CLKOUT(3)
OSC1
1:
2:
3:
PC
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
T0
T0IF interrupt flag is sampled here (every Q1).
Interrupt latency = 4 T
CLKOUT is available only in RC Oscillator mode.
PC-1
Q1
FEh
Inst (PC)
Inst (PC-1)
Q2
TIMER0 TIMING: INTERNAL CLOCK/PRESCALE 1:2
TIMER0 INTERRUPT TIMING
PC
1
MOVWF TMR0
Q3
PC
T0+1
Q4
CY
, where T
Q1
MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
FFh
Write TMR0
executed
Inst (PC+1)
CY
1
Inst (PC)
PC+1
Q2
PC +1
= instruction cycle time.
Q3
Preliminary
Q4
Read TMR0
reads NT0
PC+2
Q1
Interrupt Latency Time
00h
Dummy cycle
Q2
PC +1
Read TMR0
reads NT0
PC+3
Q3
NT0
Q4
MOVF TMR0,W
Read TMR0
reads NT0
Q1
PC+4
01h
Dummy cycle
Inst (0004h)
Q2
0004h
Q3
2002 Microchip Technology Inc.
MOVF TMR0,W
Read TMR0
reads NT0
PC+5
Q4
Q1
02h
Read TMR0
reads NT0 + 1
Inst (0004h)
Inst (0005h)
NT0+1
Q2
0005h
PC+6
Q3
Q4
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