PIC16F1847-I/SO Microchip Technology, PIC16F1847-I/SO Datasheet - Page 87

• Manufacturer Part Number: PIC16F1847-I/SO
• Description: 14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 16 I/0, Enhanced Mid Range Core 18 S
• Manufacturer: Microchip Technology

Specifications of PIC16F1847-I/SO

• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FIGURE 8-4:
 2011 Microchip Technology Inc.
INSTRUCTION FLOW
CLKOUT
INT pin
INTF
OSC1
GIE
Instruction
Executed
Note 1: INTF flag is sampled here (every Q1).
Instruction
Fetched
PC
2: Asynchronous interrupt latency = 3-5 T
3: CLKOUT not available in all oscillator modes.
4: For minimum width of INT pulse, refer to AC specifications in
5: INTF is enabled to be set any time during the Q4-Q1 cycles.
(3)
Latency is the same whether Inst (PC) is a single cycle or a 2-cycle instruction.
Q1
Inst (PC – 1)
Inst (PC)
(1)
INT PIN INTERRUPT TIMING
Q2
PC
Q3
(4)
Q4
(5)
Q1
Inst (PC + 1)
Inst (PC)
Q2
(1)
PC + 1
Q3
CY
Preliminary
. Synchronous latency = 3-4 T
Q4
Interrupt Latency
Q1
Dummy Cycle
Q2
PC + 1
—
Q3
Section 30.0 “Electrical
Q4
(2)
Q1
Dummy Cycle
CY
PIC16(L)F1847
Inst (0004h)
, where T
Q2
0004h
Q3
CY
Specifications”.
Q4
= instruction cycle time.
Q1
DS41453A-page 87
Inst (0005h)
Q2
Inst (0004h)
0005h
Q3
Q4