PIC16F946-E/PT Microchip Technology, PIC16F946-E/PT Datasheet - Page 197

• Manufacturer Part Number: PIC16F946-E/PT
• Description: Microcontroller
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F946-E/PT

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 53
• Program Memory Size: 14KB (8K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 336 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 64-TFQFP
• Processor Series: PIC16F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 352 B
• Interface Type: SSP, I2C, AUSART, SPI
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 53
• Number Of Timers: 3
• Maximum Operating Temperature: + 125 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, MA160011
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: MA160011 - DAUGHTER BOARD PICDEM LCD 16F91X
• Lead Free Status / Rohs Status: Details

16.3.3
The BOREN0 and BOREN1 bits in the Configuration
Word register selects one of four BOR modes. Two
modes have been added to allow software or hardware
control of the BOR enable. When BOREN<1:0> = 01,
the SBOREN bit (PCON<4>) enables/disables the
BOR allowing it to be controlled in software. By select-
ing BOREN<1:0>, the BOR is automatically disabled in
Sleep to conserve power and enabled on wake-up. In
this mode, the SBOREN bit is disabled. See
Register 16-1 for the Configuration Word definition.
If V
(T
tions”), the Brown-out situation will reset the device.
FIGURE 16-3:
© 2005 Microchip Technology Inc.
BOR
DD
) (see Section 19.0 “Electrical Specifica-
Note 1: 64 ms delay only if PWRTE bit is programmed to ‘0’.
falls below V
BROWN-OUT RESET (BOR)
Internal
Internal
Internal
Reset
Reset
Reset
V
V
V
DD
DD
DD
BOR
BROWN-OUT SITUATIONS
for greater than parameter
Preliminary
< 64 ms
64 ms
This will occur regardless of V
not insured to occur if V
than parameter (T
On any Reset (Power-on, Brown-out, Watchdog Timer,
etc.), the chip will remain in Reset until V
V
be invoked, if enabled and will keep the chip in Reset
an additional 64 ms.
If V
running, the chip will go back into a Brown-out Reset
and the Power-up Timer will be re-initialized. Once V
rises above V
64 ms Reset.
BOR
(1)
Note:
64 ms
64 ms
DD
(see Figure 16-3). The Power-up Timer will now
drops below V
(1)
(1)
The Power-up Timer is enabled by the
PWRTE bit in the Configuration Word.
BOR
, the Power-up Timer will execute a
BOR
BOR
).
DD
while the Power-up Timer is
PIC16F946
V
V
V
falls below V
BOR
BOR
BOR
DD
slew rate. A Reset is
DS41265A-page 195
DD
BOR
rises above
for less
DD