PIC32MX440F512H-80I/PT Microchip Technology, PIC32MX440F512H-80I/PT Datasheet - Page 501

• Manufacturer Part Number: PIC32MX440F512H-80I/PT
• Description: IC PIC MCU FLASH 512K 64-TQFP
• Manufacturer: Microchip Technology
• Series: PIC® 32MXr

Specifications of PIC32MX440F512H-80I/PT

• Program Memory Type: FLASH
• Program Memory Size: 512KB (512K x 8)
• Package / Case: 64-TFQFP
• Core Processor: MIPS32® M4K™
• Core Size: 32-Bit
• Speed: 80MHz
• Connectivity: I²C, IrDA, LIN, PMP, SPI, UART/USART, USB OTG
• Peripherals: Brown-out Detect/Reset, DMA, POR, PWM, WDT
• Number Of I /o: 53
• Ram Size: 32K x 8
• Voltage - Supply (vcc/vdd): 2.3 V ~ 3.6 V
• Data Converters: A/D 16x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC32MX4xx
• Core: MIPS
• Data Bus Width: 32 bit
• Data Ram Size: 32 KB
• Interface Type: I2C , SPI , UART
• Maximum Clock Frequency: 80 MHz
• Number Of Programmable I/os: 51
• Number Of Timers: 5 x 16 bit, 1 x 32 bit
• Operating Supply Voltage: 2.3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52713-733, 52714-737
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, DM320003, DM320002, MA320002
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit
• Controller Family/series: PIC32
• No. Of I/o's: 51
• Ram Memory Size: 32KB
• Cpu Speed: 80MHz
• No. Of Timers: 5
• Embedded Interface Type: EUART, I2C, PSP, SPI
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC244003 - TEST BD MPLAB REAL ICE LOOPBACKDM320003 - BOARD DEMO USB PIC32 OTGAC244006 - KIT MPLAB REAL ICE TRACEAC164327 - MODULE SKT FOR 64TQFP
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

EQUATION 22-4:
22.3.12
Different acquisition/conversion sequences provide dif-
ferent times for the sample-and-hold channel to acquire
the analog signal. The user must ensure the acquisition
time meets the sampling requirements.
When SSRC<2:0> (AD1CON1<7:5>) = 111, the con-
version trigger is under ADC clock control. The
SAMC<4:0> bits (AD1CON3<12:8>) select the number
of T
the start of conversion. This trigger option provides the
fastest conversion rates on multiple channels. After the
start of acquisition, the module will count a number of
T
22.3.13
When the ON bit (AD1CON1<15>) is ‘1’, the module is
in Active mode and is fully powered and functional.
When ON is ‘0’, the module is disabled. The digital and
analog portions of the circuit are turned off for maxi-
mum current savings.
In order to return to the Active mode from the Off mode,
the user must wait for the analog stages to stabilize.
For the stabilization time, refer to the Electrical
Characteristics section of the device data sheet.
© 2008 Microchip Technology Inc.
AD
T
T
Note:
SMP
SMP
AD
Note:
clocks specified by the SAMC bits.
clock cycles between the start of acquisition and
=
= Trigger Pulse Interval (T
ACQUISITION TIME
CONSIDERATIONS
TURNING THE ADC ON
Writing to ADC control bits other than
ON
(AD1CON1<1>),
(AD1CON1<0>) is not recommended
while the A/D converter is running.
T
T
SEQ
Conversion Time (T
SEQ
is the trigger pulse interval time.
– T
(AD1CON1<15>),
AVAILABLE SAMPLING
TIME, SEQUENTIAL
SAMPLING
CONV
CONV
and
SEQ
)
) –
DONE
SAMP
Preliminary
22.3.14
22.3.14.1
In manual sampling, a acquisition is started by writing a
‘1’ to the SAMP (AD1CON1<1>) bit. Software must
manually manage the start and end of the acquisition
period by setting SAMP and then clearing SAMP after
the desired acquisition period has elapsed.
22.3.14.2
In Auto-Sample mode, the sampling process is started
by writing a ‘1’ to the ASAM (AD1CON1<2>) bit. In
Auto-Sample mode, the acquisition period is defined by
ADCS<7:0> (AD1CON3<7:0>). Acquisition is automat-
ically started after a conversion is completed. Auto-
Sample mode can be used with any trigger source
other than manual.
22.3.15
The configuration for 500 ksps operation is dependent
on whether a single input pin or multiple pins will be
sampled.
22.3.15.1
The following configuration items are required to
achieve a 500 ksps conversion rate.
• Connect external V
• Set SSRC<2:0> = 111 in the AD1CON1 register
• Enable automatic sampling by setting the ASAM
• Configure the ADC clock period to be:
• Configure the sampling time to be 2 T
the recommended circuit shown in Figure 22-3.
to enable the auto convert option.
control bit in the AD1CON1 register.
by writing to the ADCS<5:0> control bits in the
AD1CON3 register.
ing: SAMC<4:0> = 00010.
-------------------------------------- -
12 1 000 000
×
PIC32MX3XX/4XX
,
1
INITIATING SAMPLING
500 KSPS CONFIGURATION
GUIDELINE
,
Manual Mode
Auto-Sample Mode
500 ksps Configuration Procedure
=
83.33ns
REF
+ and V
REF
DS61143C-page 499
- pins following
AD
by writ-