PIC16F1939-I/P Microchip Technology Inc., PIC16F1939-I/P Datasheet - Page 121

• Manufacturer Part Number: PIC16F1939-I/P
• Description: 28KB Flash, 1KB RAM, 256B EEPROM, LCD, 1.8-5.5V
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F1939-I/P

• A/d Inputs: 14-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 8 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 36
• Interface: I2C/SPI/UART/USART
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 40-pin PDIP
• Programmable Memory: 28K Bytes
• Ram Size: 1K Bytes
• Speed: 32 MHz
• Temperature Range: –40 to 125 °C
• Timers: 4-8-bit, 1-16-bit
• Voltage, Range: 1.8-5.5 V

After the “BSF EECON1,WR” instruction, the processor
requires two cycles to set up the write operation. The
user must place two NOP instructions after the WR bit is
set. The processor will halt internal operations for the
typical 2 ms, only during the cycle in which the write
takes place (i.e., the last word of the block write). This
is not Sleep mode as the clocks and peripherals will
FIGURE 11-2:
 2009 Microchip Technology Inc.
EEADRL<2:0> = 000
First word of block
to be written
Buffer Register
BLOCK WRITES TO FLASH PROGRAM MEMORY WITH 8 WRITE LATCHES
14
EEADRL<2:0> = 001
7
Buffer Register
5
EEDATH
Preliminary
6
14
Program Memory
EEADRL<2:0> = 010
0 7
continue to run. The processor does not stall when
LWLO = 1, loading the write latches. After the write
cycle, the processor will resume operation with the third
instruction after the EECON1 write instruction.
PIC16F193X/LF193X
EEDATA
Buffer Register
8
14
EEADRL<2:0> = 111
0
Buffer Register
Last word of block
DS41364D-page 121
to be written
14