PIC16C621-04/SO Microchip Technology, PIC16C621-04/SO Datasheet - Page 34
![IC MCU OTP 1KX14 COMP 18SOIC](/photos/6/76/67656/150-18-soic_sml.jpg)
PIC16C621-04/SO
Manufacturer Part Number
PIC16C621-04/SO
Description
IC MCU OTP 1KX14 COMP 18SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16C621-04/SO
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
13
Program Memory Size
1.75KB (1K x 14)
Program Memory Type
OTP
Ram Size
80 x 8
Voltage - Supply (vcc/vdd)
3 V ~ 6 V
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
18-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Connectivity
-
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PIC16C62X
FIGURE 6-3:
FIGURE 6-4:
DS30235J-page 32
Instruction
PC
(Program
Counter)
Fetch
Instruction
Execute
TMR0
OSC1
CLKOUT(3)
TMR0 timer
GIE bit
(INTCON<7>)
INSTRUCTION FLOW
T0IF bit
(INTCON<2>)
Instruction
fetched
Instruction
executed
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
Note 1: T0IF interrupt flag is sampled here (every Q1).
PC-1
Q1
2: Interrupt latency = 3T
3: CLKOUT is available only in RC Oscillator mode.
FEh
Inst (PC)
Inst (PC-1)
Q2
TIMER0 TIMING: INTERNAL CLOCK/PRESCALE 1:2
TIMER0 INTERRUPT TIMING
PC
1
MOVWF TMR0 MOVF TMR0,WMOVF TMR0,W MOVF TMR0,WMOVF TMR0,WMOVF TMR0,W
Q3
PC
T0+1
Q4
Q1
FFh
CY
Write TMR0
executed
, where T
Inst (PC+1)
1
Inst (PC)
PC+1
Q2
PC +1
Q3
CY
= instruction cycle time.
Q4
Read TMR0
reads NT0
PC+2
Q1
Interrupt Latency Time(2)
00h
Dummy cycle
Q2
PC +1
Read TMR0
reads NT0
PC+3
Q3
NT0
Q4
Read TMR0
reads NT0
Q1
PC+4
01h
Dummy cycle
Inst (0004h)
Q2
0004h
Q3
2003 Microchip Technology Inc.
Read TMR0
reads NT0
PC+5
Q4
Q1
02h
NT0+1
Read TMR0
reads NT0 + 1
Inst (0004h)
Inst (0005h)
Q2
0005h
PC+6
Q3
Q4
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