PIC16F1527-E/MR Microchip Technology, PIC16F1527-E/MR Datasheet - Page 109

• Manufacturer Part Number: PIC16F1527-E/MR
• Description: 64-pin, 28KB Flash, 1536B RAM, 10-bit ADC, 10xCCP, 2xSPI, 2xMI2C, 2xEUSART, 2.3V
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1527-E/MR

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 54
• Program Memory Size: 28KB (16K x 14)
• Program Memory Type: FLASH
• Eeprom Size: -
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 5.5 V
• Data Converters: A/D 30x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-VFQFN Exposed Pad
• Core: PIC
• Processor Series: PIC16F
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Data Ram Size: 1536 B
• Number Of Programmable I/os: 54
• Operating Supply Voltage: 2.3 V to 5.5 V
• Mounting Style: SMD/SMT
• Interface Type: SPI, I2C
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

FIGURE 11-6:
 2011 Microchip Technology Inc.
The number of words cannot
to be written into Program or
exceed the number of words
Determine number of words
Program or Config. Memory
Load Write Latches Only
Configuration Memory.
Select Write Operation
(PMADRH:PMADRL)
Select Row Address
Disable Interrupts
Write Operation
(LWLO = 1)
(FREE = 0)
(word_cnt)
(GIE = 0)
per row.
(CFGS)
Select
Start
FLASH PROGRAM MEMORY WRITE FLOWCHART
Preliminary
Program Memory Latches
Update the word counter
No delay when writing to
(PMADRH:PMADRL++)
Operation (WREN = 1)
Load the value to write
(PMDATH:PMDATL)
Enable Write/Erase
Increment Address
Unlock Sequence
Last word to
Figure 11-3
(word_cnt--)
(Figure x-x)
write ?
No
PIC16(L)F1526/27
Yes
Write Latches to Flash
CPU stalls while Write
Write/Erase Operation
Re-enable Interrupts
operation completes
Unlock Sequence
Erase Operation
(2ms typical)
Figure 11-3
(WREN = 0)
(LWLO = 0)
(Figure x-x)
(GIE = 1)
Disable
End
DS41458B-page 109