PIC12C509A-04/P Microchip Technology Inc., PIC12C509A-04/P Datasheet - Page 23

• Manufacturer Part Number: PIC12C509A-04/P
• Description: 8 PIN, 1.5 KB OTP, 41 RAM, 6 I/O
• Manufacturer: Microchip Technology Inc.

Specifications of PIC12C509A-04/P

• Cpu Speed: 1 MIPS
• Eeprom Memory: 0 Bytes
• Input Output: 5
• Memory Capacity: 1024 Bytes
• Memory Type: OTP
• Number Of Bits: 8
• Number Of Leads: 6
• Package Type: 8-pin PDIP
• Programmable Memory: 1.5K Bytes
• Ram Size: 41 Bytes
• Speed: 4 MHz
• Timers: 1-8-bit
• Voltage, Range: 2.5-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

FIGURE 5-2:
Instruction
Instruction
executed
GP5:GP0
1999 Microchip Technology Inc.
fetched
Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4 Q1 Q2 Q3 Q4
MOVWF GPIO
PC
SUCCESSIVE I/O OPERATION
MOVF GPIO,W
MOVWF GPIO
(Write to
GPIO)
Port pin
written here
PC + 1
MOVF GPIO,W
(Read
Port pin
sampled here
GPIO)
NOP
PC + 2
PC + 3
NOP
NOP
This example shows a write to GPIO followed
by a read from GPIO.
Data setup time = (0.25 T
where: T
Therefore, at higher clock frequencies, a
write followed by a read may be problematic.
T
CY
PD
= instruction cycle.
= propagation delay
PIC12C5XX
CY
DS40139E-page 23
– T
PD
)