PIC16F687-I/ML Microchip Technology, PIC16F687-I/ML Datasheet - Page 146
![IC PIC MCU FLASH 2KX14 20QFN](/photos/6/64/66481/c04-126_ml_sml.jpg)
PIC16F687-I/ML
Manufacturer Part Number
PIC16F687-I/ML
Description
IC PIC MCU FLASH 2KX14 20QFN
Manufacturer
Microchip Technology
Series
PIC® 16Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F690DM-PCTLHS.pdf
(306 pages)
3.PIC16F677-IP.pdf
(2 pages)
4.PIC16F677-IP.pdf
(16 pages)
5.PIC16F689-IML.pdf
(294 pages)
Specifications of PIC16F687-I/ML
Program Memory Type
FLASH
Program Memory Size
3.5KB (2K x 14)
Package / Case
20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
Core Processor
PIC
Core Size
8-Bit
Speed
20MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, WDT
Number Of I /o
18
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 5.5 V
Data Converters
A/D 12x10b
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
I2C, SPI, SSP, EUSART
Maximum Clock Frequency
20 MHz
Number Of Programmable I/os
17
Number Of Timers
2
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, DM163029, DV164120
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 12 Channel
A/d Bit Size
10 bit
A/d Channels Available
12
Height
0.88 mm
Length
4 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.5 V
Width
4 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
AC164324 - MODULE SKT FOR MPLAB 8DFN/16QFNAC162061 - HEADER INTRFC MPLAB ICD2 20PINDVA1004 - DEVICE ADAPTER 8/14/20DIP
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- PIC16F616T-ISL PDF datasheet
- PIC16F690DM-PCTLHS PDF datasheet #2
- PIC16F677-IP PDF datasheet #3
- PIC16F677-IP PDF datasheet #4
- PIC16F689-IML PDF datasheet #5
- Current page: 146 of 306
- Download datasheet (6Mb)
PIC16F631/677/685/687/689/690
11.4.6
In Half-Bridge applications where all power switches
are modulated at the PWM frequency, the power
switches normally require more time to turn off than to
turn on. If both the upper and lower power switches are
switched at the same time (one turned on, and the
other turned off), both switches may be on for a short
period of time until one switch completely turns off.
During this brief interval, a very high current
(shoot-through current) will flow through both power
switches, shorting the bridge supply. To avoid this
potentially destructive shoot-through current from
flowing during switching, turning on either of the power
switches is normally delayed to allow the other switch
to completely turn off.
In Half-Bridge mode, a digitally programmable
dead-band delay is available to avoid shoot-through
current from destroying the bridge power switches. The
delay occurs at the signal transition from the non-active
state to the active state. See Figure 11-8 for illustration.
The lower seven bits of the associated PWM1CON
register (Register 11-3) sets the delay period in terms
of microcontroller instruction cycles (T
FIGURE 11-18:
DS41262E-page 144
Standard Half-Bridge Circuit (“Push-Pull”)
PROGRAMMABLE DEAD-BAND
DELAY MODE
EXAMPLE OF HALF-BRIDGE APPLICATIONS
CY
or 4 T
P1A
P1B
OSC
).
FET
Driver
FET
Driver
FIGURE 11-17:
P1A
P1B
td = Dead-Band Delay
Note 1: At this time, the TMR2 register is equal to the
(2)
(2)
V+
V-
(1)
2: Output signals are shown as active-high.
td
Pulse Width
PR2 register.
Load
Period
td
EXAMPLE OF
HALF-BRIDGE PWM
OUTPUT
© 2008 Microchip Technology Inc.
+
V
-
+
V
-
(1)
Period
(1)
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