DSPIC30F2012T-30I/ML Microchip Technology, DSPIC30F2012T-30I/ML Datasheet - Page 131
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DSPIC30F2012T-30I/ML
Manufacturer Part Number
DSPIC30F2012T-30I/ML
Description
IC,DSP,16-BIT,CMOS,LLCC,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
dsPIC™ 30Fr
Datasheets
1.DSPIC30F2011-20ISO.pdf
(66 pages)
2.DSPIC30F2011-20ISO.pdf
(210 pages)
3.DSPIC30F2011-20ISO.pdf
(14 pages)
4.DSPIC30F2011-20ISO.pdf
(6 pages)
5.DSPIC30F2011-20ISO.pdf
(18 pages)
6.DSPIC30F2011-20IP.pdf
(26 pages)
Specifications of DSPIC30F2012T-30I/ML
Rohs Compliant
YES
Core Processor
dsPIC
Core Size
16-Bit
Speed
30 MIPs
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
20
Program Memory Size
12KB (4K x 24)
Program Memory Type
FLASH
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 5.5 V
Data Converters
A/D 10x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
DSPIC30F2012T-30I/ML
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
17.3.1.1
The oscillator start-up circuitry is not linked to the POR
circuitry.
frequency crystals) will have a relatively long start-up
time. Therefore, one or more of the following conditions
is possible after the POR timer and the PWRT have
expired:
• The oscillator circuit has not begun to oscillate.
• The Oscillator Start-up Timer has not expired (if a
• The PLL has not achieved a LOCK (if PLL is
If the FSCM is enabled and one of the above conditions
is true, then a clock failure trap will occur. The device
will automatically switch to the FRC oscillator and the
user can switch to the desired crystal oscillator in the
trap ISR.
17.3.1.2
If the FSCM is disabled and the Power-up Timer
(PWRT) is also disabled, then the device will exit rap-
idly from Reset on power-up. If the clock source is
FRC, LPRC, ERC or EC, it will be active immediately.
If the FSCM is disabled and the system clock has not
started, the device will be in a frozen state at the Reset
vector until the system clock starts. From the user’s
perspective, the device will appear to be in Reset until
a system clock is available.
17.3.2
The BOR (Brown-out Reset) module is based on an
internal voltage reference circuit. The main purpose of
the BOR module is to generate a device Reset when a
brown-out condition occurs. Brown-out conditions are
generally caused by glitches on the AC mains
(i.e., missing portions of the AC cycle waveform due to
bad power transmission lines, or voltage sags due to
excessive current draw when a large inductive load is
turned on).
The BOR module allows selection of one of the
following voltage trip points (see
• 2.6V-2.71V
• 4.1V-4.4V
• 4.58V-4.73V
© 2010 Microchip Technology Inc.
crystal oscillator is used).
used).
Note:
Some
BOR: PROGRAMMABLE
BROWN-OUT RESET
The BOR voltage trip points indicated here
are nominal values provided for design
guidance only. Refer to the Electrical
Specifications in the specific device data
sheet for BOR voltage limit specifications.
POR with Long Crystal Start-up Time
(with FSCM Enabled)
Operating without FSCM and PWRT
crystal
circuits
Table
(especially
20-11):
dsPIC30F2011/2012/3012/3013
low
A BOR will generate a Reset pulse which will reset the
device. The BOR will select the clock source based on
the device Configuration bit values (FOS<2:0> and
FPR<4:0>). Furthermore, if an Oscillator mode is
selected, the BOR will activate the Oscillator Start-up
Timer (OST). The system clock is held until OST
expires. If the PLL is used, then the clock will be held
until the LOCK bit (OSCCON<5>) is ‘1’.
Concurrently, the POR time-out (T
time-out (T
is released. If T
used, then a nominal delay of T
The total delay in this case is (T
The BOR Status bit (RCON<1>) will be set to indicate
that a BOR has occurred. The BOR circuit, if enabled,
will continue to operate while in Sleep or Idle modes
and will reset the device should V
threshold voltage.
FIGURE 17-6:
Note 1:
Note:
2:
3:
PWRT
Dedicated supervisory devices, such as
the MCP1XX and MCP8XX, may also be
used as an external Power-on Reset
circuit.
D
External Power-on Reset circuit is required
only if the V
The diode D helps discharge the capacitor
quickly when V
R should be suitably chosen so as to make
sure that the voltage drop across R does not
violate the device’s electrical specifications.
R1 should be suitably chosen so as to limit
any current flowing into MCLR from external
capacitor C, in the event of MCLR/V
breakdown due to Electrostatic Discharge
(ESD) or Electrical Overstress (EOS).
PWRT
) will be applied before the internal Reset
V
DD
R
C
= 0 and a crystal oscillator is being
EXTERNAL POWER-ON
RESET CIRCUIT (FOR
SLOW V
DD
power-up slope is too slow.
DD
R1
powers down.
FSCM
POR
DD
DD
POR
+ T
DS70139G-page 131
dsPIC30F
MCLR
= 100 μs is applied.
fall below the BOR
POWER-UP)
) and the PWRT
FSCM
).
PP
pin