PIC16F785-I/ML Microchip Technology, PIC16F785-I/ML Datasheet - Page 3

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

Specifications of PIC16F785-I/ML

• Core Size: 8-Bit
• Program Memory Size: 3.5KB (2K x 14)
• Core Processor: PIC
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Type: FLASH
• 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
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 18
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 128Byte
• Cpu Speed: 20MHz
• No. Of Timers: 3
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC164322 - MODULE SOCKET MPLAB PM3 28/44QFN
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

Silicon Errata Issues
1. Module: Two-Phase PWM
© 2009 Microchip Technology Inc.
Note:
The Complementary mode is not supported due to
the nature and extent of the Complementary mode
anomalies. Complementary mode should be used
for evaluation purposes only.
1. Duty cycle by comparator feedback (COMOD
2. When the duty cycle is determined by the
3. Maximum phase switching dead time is limited
4. The shutdown condition will correctly force
5. If the dead time is not zero and PWMPH1<4:0>
Work around
None.
Affected Silicon Revisions
A2
X
= X1) is not supported.
difference between the PH1 and PH2 phase
delays (CMOD = 10), both outputs can some-
times hang low if the duty cycle is less than
20 ns or greater than the phase switching dead
time. The hang condition can only be cleared
by setting the dead time to zero.
by the PWM clock frequency (pwm_clock). At
a pwm_clock frequency of 20 MHz, the maxi-
mum dead time is about 35 ns. At a
pwm_clock frequency of 10 MHz, the maxi-
mum dead time is about 80 ns. The relation-
ship between maximum dead time and
pwm_clock frequency is approximately linear.
PH1 false (low output at PH1 flop before the
inverting XOR gate). PH2 will be incorrectly
forced true (high output at PH2 flop before
inverting XOR gate).
= PWMPH2<4:0> then both phase outputs will
be driven false (PH1 and PH2 low before invert-
ing XOR gate). If the dead time is zero and
PWMPH1<4:0> = PWMPH2<4:0>, then phase
1 will be driven true (PH2 high) for all but one
pwm_clock cycles every PWM period.
This document summarizes all silicon
errata issues from all revisions of silicon,
previous as well as current. Only the
issues indicated by the shaded column in
the following tables apply to the current
silicon revision (A4).
A3
X
(Complementary Mode)
2. Module: Two-Phase PWM (Two-Phase
3. Module: Capture/Compare/PWM (CCP)
1. If the PWMASE bit is set when the PASEN bit
2. In normal two-phase operation when the
Work around
None.
Affected Silicon Revisions
The first capture will occur one edge too early if the
RC5/CCP1 input is high when selecting the CCP
mode
(CCP1CON<3:0> = 0110) or every 16th edge
(CCP1CON<3:0> = 0111). Subsequent captures
will occur properly.
Work around
None.
Affected Silicon Revisions
A2
A2
X
X
PIC16F785/HV785
is cleared, then the PWMASE bit will be stuck
high and the PWM will be frozen in shutdown.
Shutdown can only be cleared by first setting
the PASEN bit high then clearing the shutdown
condition (RA2/INT input must be high) so the
PWMASE bit can be cleared.
output is inverted, the leading edge is delayed
by about 10 ns and the trailing edge occurs
about 7 ns early. When the phase delay is set
to maximum, the leading edge is delayed
about 8 ns. The net result of these two
phenomena is that at 20 MHz F
inverted output at maximum phase delay will
not be generated.
A3
A3
to
X
X
Mode)
capture
either
every
DS80234E-page 3
OSC
, a blanked
4th
edge