PIC16C73A-04/SP Microchip Technology Inc., PIC16C73A-04/SP Datasheet - Page 60
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PIC16C73A-04/SP
Manufacturer Part Number
PIC16C73A-04/SP
Description
28 PIN, 7 KB OTP, 192 RAM, 22 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16C73A-04SP.pdf
(289 pages)
Specifications of PIC16C73A-04/SP
A/d Inputs
5-Channel, 8-Bit
Cpu Speed
5 MIPS
Eeprom Memory
0 Bytes
Input Output
22
Interface
I2C/SPI/USART
Memory Type
OTP
Number Of Bits
8
Package Type
28-pin SPDIP
Programmable Memory
7K Bytes
Ram Size
192 Bytes
Speed
4 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2.5-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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PIC16C7X
FIGURE 7-3:
FIGURE 7-4:
DS30390E-page 60
Instruction
PC
(Program
Counter)
Fetch
Instruction
Execute
TMR0
INSTRUCTION
FLOW
GIE bit
(INTCON<7>)
T0IF bit
(INTCON<2>)
Instruction
fetched
Instruction
executed
Timer0
CLKOUT(3)
OSC1
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
Note 1: Interrupt flag bit T0IF is sampled here (every Q1).
T0
PC-1
Q1
2: Interrupt latency = 4Tcy where Tcy = instruction cycle time.
3: CLKOUT is available only in RC oscillator mode.
TIMER0 TIMING: INTERNAL CLOCK/PRESCALE 1:2
TIMER0 INTERRUPT TIMING
FEh
Inst (PC)
Inst (PC-1)
Q2
1
PC
MOVWF TMR0
Q3
PC
T0+1
Q4
Q1
MOVF TMR0,W MOVF TMR0,W MOVF TMR0,W
FFh
Write TMR0
executed
Inst (PC+1)
Inst (PC)
PC+1
Q2
1
PC +1
Q3
Q4
Read TMR0
reads NT0
PC+2
Q1
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
MOVF TMR0,W
Read TMR0
reads NT0
1997 Microchip Technology Inc.
PC+5
Q4
Q1
02h
Read TMR0
reads NT0 + 1
Inst (0004h)
Inst (0005h)
NT0+1
Q2
0005h
PC+6
Q3
Q4
PC+6
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