PIC12F519-I/SN Microchip Technology, PIC12F519-I/SN Datasheet - Page 49

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

Specifications of PIC12F519-I/SN

• Program Memory Type: FLASH
• Program Memory Size: 1.5KB (1K x 12)
• Package / Case: 8-SOIC (3.9mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Ram Size: 41 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC12F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 41 B
• Interface Type: USB
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 6
• Number Of Timers: 1
• 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
• Height: 1.25 mm
• Length: 4.9 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Width: 3.9 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8.7
The TO, PD and (GPWUF) bits in the STATUS register
can be tested to determine if a Reset condition has
been caused by a power-up condition, a MCLR or
Watchdog Timer (WDT) Reset.
TABLE 8-7:
8.8
A device may be powered down (Sleep) and later
powered up (wake-up from Sleep).
8.8.1
The Power-down mode is entered by executing a
SLEEP instruction.
If enabled, the Watchdog Timer will be cleared but
keeps running, the TO bit (STATUS<4>) is set, the PD
bit (STATUS<3>) is cleared and the oscillator driver is
turned off. The I/O ports maintain the status they had
before the SLEEP instruction was executed (driving
high, driving low or high-impedance).
For lowest current consumption while powered down,
the T0CKI input should be at V
GP3/MCLR/V
MCLR is enabled.
© 2008 Microchip Technology Inc.
Legend: u = unchanged
Note 1:
GPWUF
Note:
0
0
0
0
0
1
Time-out Sequence, Power-down
and Wake-up from Sleep Status
Bits (TO, PD, GPWUF)
Power-down Mode (Sleep)
The TO, PD and GPWUF bits maintain
their status (u) until a Reset occurs. A
low-pulse on the MCLR input does not
change the TO, PD and GPWUF Status
bits.
SLEEP
A Reset generated by a WDT time-out
does not drive the MCLR pin low.
TO
PP
0
0
1
1
u
1
pin must be at a logic high level if
TO/PD/(GPWUF) STATUS
AFTER RESET
PD
0
u
0
1
u
0
WDT wake-up from Sleep
WDT time-out (not from
Sleep)
MCLR wake-up from Sleep
Power-up
MCLR not during Sleep
Wake-up from Sleep on pin
change
Reset Caused By
DD
or V
SS
and the
8.8.2
The device can wake-up from Sleep through one of the
following events:
5.
6.
7.
These events cause a device Reset. The TO, PD and
GPWUF bits can be used to determine the cause of
device Reset. The TO bit is cleared if a WDT time-out
occurred (and caused wake-up). The PD bit, which is
set on power-up, is cleared when SLEEP is invoked.
The GPWUF bit indicates a change in state while in
Sleep at pins GP0, GP1 and GP3 (since the last file or
bit operation on GPIO port).
The WDT is cleared when the device wakes from
Sleep, regardless of the wake-up source.
Note:
An external Reset input on GP3/MCLR/V
when configured as MCLR.
A Watchdog Timer Time-out Reset (if WDT was
enabled).
A change on input pin GP0, GP1 and GP3 when
wake-up on change is enabled.
WAKE-UP FROM SLEEP
Caution: Right before entering Sleep,
read the input pins. When in Sleep, wake
up occurs when the values at the pins
change from the state they were in at the
last reading. If a wake-up on change
occurs and the pins are not read before
re-entering Sleep, a wake-up will occur
immediately even if no pins change while
in Sleep mode.
PIC12F519
DS41319B-page 47
PP
pin,