PIC16F1937-I/P Microchip Technology, PIC16F1937-I/P Datasheet - Page 66

• Manufacturer Part Number: PIC16F1937-I/P
• Description: IC PIC MCU FLASH 512KX14 40-PDIP
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1937-I/P

• Program Memory Type: FLASH
• Program Memory Size: 14KB (8K x 14)
• Package / Case: 40-DIP (0.600", 15.24mm)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 36
• Eeprom Size: 256 x 8
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 512 B
• Interface Type: EUSART/MI2C/SPI
• Maximum Clock Frequency: 32 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 5
• Maximum Operating Temperature: + 85 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• A/d Bit Size: 10 bit
• A/d Channels Available: 14
• Height: 4.95 mm
• Length: 53.21 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 1.8 V
• Width: 14.73 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

PIC16F193X/LF193X
3.5.1
The BOR circuit has an output that feeds into the POR
circuit and rearms the POR within the operating range
of the BOR. This early rearming of the POR ensures
that the device will remain in Reset in the event that
V
circuitry.
3.6
A RESET instruction will cause a device Reset. The RI
bit in the PCON register will be set to ‘0’. See Table 3-6
for default conditions after a RESET instruction has
occurred.
3.7
Device Resets on Stack Overflow and Stack Underflow
conditions are enabled by setting the STVREN bit in
Configuration Word 2. When STVREN is set, an overflow
or underflow condition will set the appropriate STKOVF
or STKUNF bit in the PCON register and then cause a
device Reset. When STVREN is cleared, an overflow or
underflow condition will set the appropriate STKOVF or
STKUNF bit, but not cause a device Reset. The STKOVF
or STKUNF bit is cleared by user software or a Power-on
Reset.
3.8
On power-up, the time-out sequence is as follows: first,
PWRT time-out is invoked after POR or BOR has
expired, then OST is activated after the PWRT time-out
has expired. The total time-out will vary based on oscil-
lator configuration and PWRTE bit status. For example,
in EC mode with PWRTE bit = 1 (PWRT disabled),
there will be no time out at all. Figure 3-5, Figure 3-6
and Figure 3-7 depict time-out sequences.
Since the time outs occur from the POR pulse, if MCLR
is kept low long enough, the time-outs will expire. Then,
bringing MCLR high will begin execution immediately
(see Figure 3-6). This is useful for testing purposes or
to synchronize more than one PIC16F193X/LF193X
device operating in parallel.
Table 3-7 shows the Reset conditions for some special
registers.
DS41364A-page 64
DD
falls below the operating range of the BOR
Reset Instruction
Stack Overflow/Underflow
Power-Up Time-out Sequence
BOR HIBERNATE/REARM
Preliminary
© 2008 Microchip Technology Inc.