PIC16F785-I/SO Microchip Technology, PIC16F785-I/SO Datasheet - Page 90

• Manufacturer Part Number: PIC16F785-I/SO
• Description: IC PIC MCU FLASH 2KX14 20SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-I/SO

• Program Memory Type: FLASH
• Program Memory Size: 3.5KB (2K x 14)
• Package / Case: 20-SOIC (7.5mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 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: 128 B
• Interface Type: RS- 232/USB
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 3
• Operating Supply Voltage: 2 V to 5.5 V
• 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, PG164120, ICE2000, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 14-ch x 10-bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SO1-1 - SOCKET TRANS ICE 20DIP TO 20SOICXLT18SO-1 - SOCKET TRANSITION 18SOIC 300MILAC162060 - HEADER INTRFC MPLAB ICD2 20PINAC164039 - MODULE SKT PROMATE II 20DIP/SOIC
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC16F785
13.5
The PWM output signal can be made active high or
low by setting or resetting the corresponding POL bit
(see Register 13-3 and Register 13-4). When POL is
‘1’ the active output state is V
active output state is V
13.6
When the PWM is enabled, the PWM outputs may be
configured for auto-shutdown by setting the PASEN bit
(see Register 13-1). V
C1OUT pin will cause a shutdown event if auto-shut-
down is enabled. An Auto-shutdown event immedi-
ately places the PWM outputs in the inactive state (see
Section 13.5 “Active PWM Output Level”) and the
PWM phase and period counters are reset and held to
zero.
FIGURE 13-3: 2 PHASE PWM SIMPLIFIED BLOCK DIAGRAM
DS41249A-page 88
C1OUT
C2OUT
F
OSC
Active PWM Output Level
Auto-Shutdown and Auto-Restart
BLANK1
PWMPH1<C1EN>
PWMPH1<C2EN>
BLANK2
PWMPH2<C1EN>
PWMPH2<C2EN>
IL
OH
PRESCALE
PWMP<1:0>
on the RA2/AN2/T0CKI/INT/
.
1,2,4,8
OL
. When POL is ‘0’ the
pwm_clk
PWMPH1<4:0>
PWMPH2<4:0>
PH1EN
PH2EN
PWMASE
Preliminary
PWMASE
PH1EN
PH2EN
COUNTER
PHASE
5
The PWMASE bit (see Register 13-2) is set by hard-
ware when a shutdown event occurs. If automatic
restarts are not enabled (PRSEN = 0, see
Register 13-1), PWM operation will not resume until
the PWMASE bit is cleared by firmware after the shut-
down condition clears. The PWMASE bit can not be
cleared as long as the shutdown condition exists. If
automatic restarts are not enabled, the auto-shutdown
mode can be forced by writing a ‘1’ to the PWMASE
bit.
If automatic restarts are enabled (PRSEN = 1), the
PWMASE bit is automatically cleared and PWM oper-
ation resumes when the auto-shutdown event clears
(V
pwm_count
IH
RES
on the RA2/AN2/T0CKI/INT/C1OUT pin).
PER<4:0>
PWMASE
*Reset dominant
*Reset dominant
S
S
R*
R*
Q
Q
pha1
pha2
 2004 Microchip Technology Inc.
0
1
MASTER
PWMPH1<POL>
PWMPH2<POL>
M
S
SYNC
PH1
PH2