PIC12F519-I/MC Microchip Technology, PIC12F519-I/MC Datasheet - Page 44

• Manufacturer Part Number: PIC12F519-I/MC
• Description: IC PIC MCU FLASH 1KX12 8DFN
• Manufacturer: Microchip Technology
• Series: PIC® 12Fr

Specifications of PIC12F519-I/MC

• Core Size: 8-Bit
• Program Memory Size: 1.5KB (1K x 12)
• Core Processor: PIC
• Speed: 8MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Type: FLASH
• Ram Size: 41 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 8-DFN
• Controller Family/series: PIC12
• No. Of I/o's: 6
• Eeprom Memory Size: 64Byte
• Ram Memory Size: 41Byte
• Cpu Speed: 8MHz
• No. Of Timers: 1
• Package: 8DFN EP
• Device Core: PIC
• Family Name: PIC12
• Maximum Speed: 8 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 6
• Interface Type: USB
• Number Of Timers: 1
• Processor Series: PIC12F
• Core: PIC
• Data Ram Size: 41 B
• Maximum Clock Frequency: 8 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005
• Minimum Operating Temperature: - 40 C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164334 - MODULE SOCKET FOR 8L 2X3MM DFNXLT08DFN2 - SOCKET TRANSITION ICE 14DIP/8DFN
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Details

PIC12F519
TABLE 8-4:
8.3.1
This Configuration bit, when unprogrammed (left in the
‘1’ state), enables the external MCLR function. When
programmed, the MCLR function is tied to the internal
V
FIGURE 8-6:
8.4
The PIC12F519 device incorporates an on-chip
Power-on Reset (POR) circuitry, which provides an
internal chip Reset for most power-up situations.
The on-chip POR circuit holds the chip in Reset until
V
operation. To take advantage of the internal POR,
program the GP3/MCLR/V
through a resistor to V
which case, an internal weak pull-up resistor is
implemented using a transistor (refer to Table 11-4 for
the pull-up resistor ranges). This will eliminate external
RC components usually needed to create a Power-on
Reset. A maximum rise time for V
Section 11.0 “Electrical Characteristics” for details.
When the devices start normal operation (exit the Reset
condition), device operating parameters (voltage,
frequency, temperature,...) must be met to ensure
operation. If these conditions are not met, the devices
must be held in Reset until the operating parameters
are met.
A simplified block diagram of the on-chip Power-on
Reset circuit is shown in Figure 8-7.
DS41319B-page 42
Power-on Reset
MCLR Reset during normal operation
MCLR Reset during Sleep
WDT Reset during Sleep
WDT Reset normal operation
Wake-up from Sleep on pin change
Legend: u = unchanged, x = unknown
DD
DD
MCLRE
GPPU
and the pin is assigned to be a I/O. See Figure 8-6.
has reached a high enough level for proper
Power-on Reset (POR)
MCLR ENABLE
RESET CONDITION FOR SPECIAL REGISTERS
DD
MCLR SELECT
, or program the pin as GP3, in
PP
pin as MCLR and tie
GP3/MCLR/V
DD
is specified. See
Internal MCLR
PP
The Power-on Reset circuit and the Device Reset Timer
(see Section 8.5 “Device Reset Timer (DRT)”) circuit
are closely related. On power-up, the Reset latch is set
and the DRT is reset. The DRT timer begins counting
once it detects MCLR to be high. After the time-out
period, which is typically 18 ms or 1 ms, it will reset the
Reset latch and thus end the on-chip Reset signal.
A power-up example where MCLR is held low is shown
in Figure 8-8. V
bringing MCLR high. The chip will actually come out of
Reset T
In Figure 8-9, the on-chip Power-on Reset feature is
being used (MCLR and V
is programmed to be GP3). The V
the Start-up timer times out and there is no problem in
getting a proper Reset. However, Figure 8-10 depicts a
problem situation where V
between when the DRT senses that MCLR is high and
when MCLR and V
too long. In this situation, when the start-up timer times
out, V
chip may not function correctly. For such situations, we
recommend that external RC circuits be used to
achieve longer POR delay times (Figure 8-9).
For additional information, refer to Application Note
AN522, “Power-Up Considerations” (DS00522)
Note:
DD
DRT
has not reached the V
When the devices start normal operation
(exit the Reset condition), device operat-
ing parameters (voltage, frequency, tem-
perature, etc.) must be met to ensure
operation. If these conditions are not met,
the device must be held in Reset until the
operating conditions are met.
after MCLR goes high.
DD
STATUS Addr: 03h
is allowed to rise and stabilize before
DD
0-01 1xxx
0-0u uuuu
0-01 0uuu
0-00 0uuu
0-00 uuuu
1-01 0uuu
actually reach their full value, is
© 2008 Microchip Technology Inc.
DD
DD
are tied together or the pin
rises too slowly. The time
DD
(min) value and the
DD
is stable before