DSPIC30F4012T-20E/SO Microchip Technology, DSPIC30F4012T-20E/SO Datasheet - Page 202

• Manufacturer Part Number: DSPIC30F4012T-20E/SO
• Description: IC DSPIC MCU/DSP 48K 28SOIC
• Manufacturer: Microchip Technology
• Series: dsPIC™ 30Fr

Specifications of DSPIC30F4012T-20E/SO

• Core Processor: dsPIC
• Core Size: 16-Bit
• Speed: 20 MIPS
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, Motor Control PWM, QEI, POR, PWM, WDT
• Number Of I /o: 20
• Program Memory Size: 48KB (16K x 24)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.5 V ~ 5.5 V
• Data Converters: A/D 6x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 28-SOIC (7.5mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

dsPIC30F4011/4012
FIGURE 24-15:
TABLE 24-31: QEI INDEX PULSE TIMING REQUIREMENTS
DS70135G-page 202
AC CHARACTERISTICS
TQ50
TQ51
TQ55
Note 1:
Param
No.
2:
Position Counter
TqIL
TqiH
Tqidxr
Symbol
Index Internal
These parameters are characterized but not tested in manufacturing.
Alignment of index pulses to QEA and QEB is shown for position counter Reset timing only. Shown for
forward direction only (QEA leads QEB). Same timing applies for reverse direction (QEA lags QEB) but
index pulse recognition occurs on falling edge.
Ungated
(input)
(input)
Reset
Index
QEA
QEB
Filter Time to Recognize Low,
with Digital Filter
Filter Time to Recognize High,
with Digital Filter
Index Pulse Recognized to Position
Counter Reset (ungated index)
QEI MODULE INDEX PULSE TIMING CHARACTERISTICS
Characteristic
TQ51
(1)
TQ55
Standard Operating Conditions: 2.5V to 5.5V
(unless otherwise stated)
Operating temperature -40°C ≤ T
3 * N * T
3 * N * T
3 T
Min
CY
CY
CY
TQ50
Max
—
—
—
-40°C ≤ T
Units
ns
ns
ns
© 2010 Microchip Technology Inc.
A
A
N = 1, 2, 4, 16, 32, 64,
128 and 256 (Note 2)
N = 1, 2, 4, 16, 32, 64,
128 and 256 (Note 2)
≤ +85°C for Industrial
≤ +125°C for Extended
Conditions