PIC16C73A-04I/SO Microchip Technology, PIC16C73A-04I/SO Datasheet - Page 17
![IC MCU OTP 4KX14 A/D PWM 28SOIC](/photos/6/59/65909/150-28-soic_sml.jpg)
PIC16C73A-04I/SO
Manufacturer Part Number
PIC16C73A-04I/SO
Description
IC MCU OTP 4KX14 A/D PWM 28SOIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16C72-04SO.pdf
(289 pages)
4.PIC16C73A-20SP.pdf
(8 pages)
Specifications of PIC16C73A-04I/SO
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
Ram Size
192 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
28-SOIC (7.5mm Width)
For Use With
XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL309-1073 - ADAPTER 28-SOIC TO 28-SOIC309-1024 - ADAPTER 28-SOIC TO 28-DIP309-1023 - ADAPTER 28-SOIC TO 28-DIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
- PIC16F616T-ISL PDF datasheet
- PIC16F818-ISO PDF datasheet #2
- PIC16C72-04SO PDF datasheet #3
- PIC16C73A-20SP PDF datasheet #4
- Current page: 17 of 289
- Download datasheet (3Mb)
3.1
The clock input (from OSC1) is internally divided by
four to generate four non-overlapping quadrature
clocks namely Q1, Q2, Q3 and Q4. Internally, the pro-
gram counter (PC) is incremented every Q1, the
instruction is fetched from the program memory and
latched into the instruction register in Q4. The instruc-
tion is decoded and executed during the following Q1
through Q4. The clocks and instruction execution flow
is shown in Figure 3-4.
FIGURE 3-4:
EXAMPLE 3-1:
1. MOVLW 55h
2. MOVWF PORTB
3. CALL
4. BSF
5. Instruction @ address SUB_1
1997 Microchip Technology Inc.
All instructions are single cycle, except for any program branches. These take two cycles since the fetch
instruction is “flushed” from the pipeline while the new instruction is being fetched and then executed.
OSC2/CLKOUT
Clocking Scheme/Instruction Cycle
(RC mode)
SUB_1
PORTA, BIT3 (Forced NOP)
OSC1
Q4
PC
Q2
Q3
Q1
CLOCK/INSTRUCTION CYCLE
INSTRUCTION PIPELINE FLOW
Q1
Execute INST (PC-1)
Fetch INST (PC)
Q2
Fetch 1
Tcy0
PC
Q3
Q4
Execute 1
Fetch 2
Tcy1
Q1
Execute INST (PC)
Fetch INST (PC+1)
Execute 2
Q2
Fetch 3
PC+1
Tcy2
3.2
An “Instruction Cycle” consists of four Q cycles (Q1,
Q2, Q3 and Q4). The instruction fetch and execute are
pipelined such that fetch takes one instruction cycle
while decode and execute takes another instruction
cycle. However, due to the pipelining, each instruction
effectively executes in one cycle. If an instruction
causes the program counter to change (e.g. GOTO)
then two cycles are required to complete the instruction
(Example 3-1).
A fetch cycle begins with the program counter (PC)
incrementing in Q1.
In the execution cycle, the fetched instruction is latched
into the “Instruction Register" (IR) in cycle Q1. This
instruction is then decoded and executed during the
Q2, Q3, and Q4 cycles. Data memory is read during Q2
(operand read) and written during Q4 (destination
write).
Q3
Q4
Execute 3
Fetch 4
Instruction Flow/Pipelining
Tcy3
Q1
Execute INST (PC+1)
Fetch INST (PC+2)
Fetch SUB_1 Execute SUB_1
Q2
Flush
Tcy4
PC+2
Q3
PIC16C7X
Q4
DS30390E-page 17
Tcy5
Internal
phase
clock
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