PIC16C84-04/P Microchip Technology, PIC16C84-04/P Datasheet - Page 45

• Manufacturer Part Number: PIC16C84-04/P
• Description: MICRO CTRL 1KX14 EPR EEPR 18DIP
• Manufacturer: Microchip Technology
• Series: PIC® 16Cr

Specifications of PIC16C84-04/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 13
• Program Memory Size: 1.75KB (1K x 14)
• Program Memory Type: EEPROM
• Eeprom Size: 64 x 8
• Ram Size: 36 x 8
• Voltage - Supply (vcc/vdd): 4 V ~ 6 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 18-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Request inventory verification / Request inventory verification
• Data Converters: -
• Connectivity: -

FIGURE 8-15: INTERRUPT LOGIC
FIGURE 8-16: INT PIN INTERRUPT TIMING
1997 Microchip Technology Inc.
INSTRUCTION FLOW
Note 1: INTF flag is sampled here (every Q1).
GIE bit
(INTCON<7>)
INTF flag
(INTCON<1>)
CLKOUT
INT pin
OSC1
Instruction
executed
Instruction
fetched
PC
2: Interrupt latency = 3-4Tcy where Tcy = instruction cycle time.
3: CLKOUT is available only in RC oscillator mode.
4: For minimum width of INT pulse, refer to AC specs.
5: INTF is enabled to be set anytime during the Q4-Q1 cycles.
Latency is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
3
Q1
Inst (PC-1)
Inst (PC)
1
Q2
PC
Q3
4
Q4
5
INTE
RBIF
RBIE
EEIE
INTF
EEIF
T0IE
T0IF
GIE
Q1
Inst (PC+1)
Inst (PC)
Q2
1
PC+1
Q3
Q4
Interrupt Latency
Q1
Dummy Cycle
Q2
PC+1
—
Q3
Wake-up
(If in SLEEP mode)
Q4
2
Interrupt to CPU
Q1
Dummy Cycle
Inst (0004h)
Q2
0004h
Q3
PIC16C84
Q4
Q1
DS30445C-page 45
Inst (0005h)
Q2
Inst (0004h)
0005h
Q3
Q4