DSPIC33FJ128GP708-I/PT Microchip Technology, DSPIC33FJ128GP708-I/PT Datasheet - Page 29

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DSPIC33FJ128GP708-I/PT

Manufacturer Part Number
DSPIC33FJ128GP708-I/PT
Description
IC DSPIC MCU/DSP 128K 80TQFP
Manufacturer
Microchip Technology
Series
dsPIC™ 33Fr

Specifications of DSPIC33FJ128GP708-I/PT

Program Memory Type
FLASH
Program Memory Size
128KB (128K x 8)
Package / Case
80-TFQFP
Core Processor
dsPIC
Core Size
16-Bit
Speed
40 MIPs
Connectivity
CAN, I²C, IrDA, LIN, SPI, UART/USART
Peripherals
AC'97, Brown-out Detect/Reset, DMA, I²S, POR, PWM, WDT
Number Of I /o
69
Ram Size
16K x 8
Voltage - Supply (vcc/vdd)
3 V ~ 3.6 V
Data Converters
A/D 24x10b/12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Product
DSCs
Data Bus Width
16 bit
Processor Series
DSPIC33F
Core
dsPIC
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
69
Data Ram Size
16 KB
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
52713-733, 52714-737, 53276-922, EWDSPIC
Development Tools By Supplier
PG164130, DV164035, DV244005, DV164005, PG164120, DM240001, DV164033
Minimum Operating Temperature
- 40 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
876-1001 - DSPIC33 BREAKOUT BOARDDM300024 - KIT DEMO DSPICDEM 1.1DV164033 - KIT START EXPLORER 16 MPLAB ICD2MA330012 - MODULE DSPIC33 100P TO 84QFPMA330011 - MODULE DSPIC33 100P TO 100QFPDM300019 - BOARD DEMO DSPICDEM 80L STARTERDM240001 - BOARD DEMO PIC24/DSPIC33/PIC32AC164328 - MODULE SKT FOR 80TQFPDV164005 - KIT ICD2 SIMPLE SUIT W/USB CABLE
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DSPIC33FJ128GP708-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
Part Number:
DSPIC33FJ128GP708-I/PT
Manufacturer:
MICROCHIP
Quantity:
590
Price:
1.00 USD
8.4
Quadrature encoders (also referred to as incremental
encoders or optical encoders) are used in position and
speed
Quadrature encoders enable closed-loop control of
many motor control applications, such as Switched
Reluctance (SR) Motor and AC Induction Motor
(ACIM).
Typically, three outputs termed, Phase A, Phase B and
INDEX, provide information that can be decoded to
provide information on the movement of the motor
shaft, including distance and direction.
A quadrature decoder captures the phase signals and
index pulse and converts the information into a numeric
count of the position pulses. Generally, the count will
FIGURE 8-3:
© 2005 Microchip Technology Inc.
UPDN
INDX
QEA
QEB
detection
Quadrature Encoder Interface
(QEI) Module
Synchronize
Sleep Input
Det
PCDOUT
of
UPDN_SRC
Programmable
Programmable
0
1
QUADRATURE ENCODER INTERFACE BLOCK DIAGRAM
Programmable
1
0
Digital Filter
Digital Filter
Digital Filter
QEICON<11>
rotating
Existing Pin Logic
Up/Down
3
motion
T
QEIM<2:0>
CY
Interface Logic
Quadrature
TQCS
Encoder
0
1
Mode Select
systems.
QEIM<2:0>
Preliminary
3
TQGATE
1
0
2
increment when the shaft is rotating one direction and
decrement when the shaft is rotating in the other
direction.
The QEI module (Figure 8-3) includes:
• Three input pins for two phase signals and index
• Programmable digital noise filters on inputs
• Quadrature decoder providing counter pulses and
• 16-bit up/down position counter
• Count direction status
• x2 and x4 count resolution
• Two modes of Position Counter Reset
• General Purpose16-Bit Timer/Counter mode
• Interrupts generated by QEI or counter events
pulse
count direction
16-Bit Up/Down Counter
Max Count Register
D
CK
Comparator/
Zero Detect
(POSCNT)
(MAXCNT)
TQCKPS<1:0>
Q
Q
1, 8, 64, 256
Prescaler
2
Reset
Equal
dsPIC33F
DS70155C-page 27
QEIIF
Event
Flag

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