PIC18F2550T-I/SO Microchip Technology, PIC18F2550T-I/SO Datasheet - Page 8

• Manufacturer Part Number: PIC18F2550T-I/SO
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SOP,28PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F2550T-I/SO

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 48MHz
• Connectivity: I²C, SPI, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 24
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 10x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-SOIC (7.5mm Width)
• Processor Series: PIC18F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 2 KB
• Interface Type: SPI, I2C, EAUSART
• Maximum Clock Frequency: 48 MHz
• Number Of Programmable I/os: 24
• Number Of Timers: 4
• Operating Supply Voltage: 2 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, ICE2000, ICE4000, DM163025, DV164136
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 10 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: I3-DB18F4550 - BOARD DAUGHTER ICEPIC3DM163025 - PIC DEM FULL SPEED USB DEMO BRD
• Lead Free Status / Rohs Status: Details

PIC18F2455/2550/4455/4550
8. Module: A/D
TABLE 28-8:
9. Module: DC Characteristics (BOR)
DS80478A-page 8
A06A
A06
Param
No.
The A/D offset is greater than the specified limit in
Table 28-8 of the Device Data Sheet. The updated
conditions and limits are shown in bold text in
Table 28-8.
Work around
Any of three work arounds may be used.
Affected Silicon Revisions
When the trip point for BORV<1:0> = 11, the val-
ues for parameter D005 (V
“DC Characteristics” of the Device Data Sheet
are not applicable as the device may reset below
the minimum operating voltage for the device.
Work around
None.
Affected Silicon Revisions
A3
A3
X
X
Symbol
E
E
OFF
OFF
B4
B4
A/D CONVERTER CHARACTERISTICS:PIC18F2455/2550/4455/4550 (INDUSTRIAL)
PIC18LF2455/2550/4455/4550 (INDUSTRIAL)
Offset Error
Offset Error
Characteristic
B5
B5
BOR
) in Section 28.1
B6
B6
B7
B7
Min
—
—
10. Module: USB
Typ
—
—
• Configure the A/D to use the V
• Perform a conversion on a known voltage
• Increase system clock speed to 48 MHz and
When an IN endpoint is owned by USB SIE and
the UCON register’s PKTDIS bit is set, if a USB
NAK event occurs on the IN endpoint before the
PKTDIS bit is clear, then after the PKTDIS is clear,
the pending IN endpoint will send out more bytes
than expected. For example, if configured to send
out 8 bytes, the SIE would actually send out
12 bytes of data.
Work around
The PKTDIS bit is set when a USB control transfer
setup packet is received. Clear this bit as soon as
possible, particularly before turning over any IN
endpoint ownership to the SIE.
Affected Silicon Revisions
pins for the voltage references. This is done
by setting the VCFG<1:0> bits
(ADCON1<5:4>).
reference voltage and adjust the A/D result in
software.
adjust A/D settings accordingly. Higher
system clock frequencies decrease offset
error.
A3
X
<±2.0
<±3.5
Max
B4
Units
LSb
LSb
© 2009 Microchip Technology Inc.
B5
V
V
REF
REF
= V
= V
Conditions
REF
B6
REF
SS
+ and V
and V
+ and V
REF
DD
B7
REF
-
-