PIC18F6621T-I/PT Microchip Technology, PIC18F6621T-I/PT Datasheet - Page 23
![IC PIC MCU FLASH 32KX16 64TQFP](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18F6621T-I/PT
Manufacturer Part Number
PIC18F6621T-I/PT
Description
IC PIC MCU FLASH 32KX16 64TQFP
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC18F6525-IPT.pdf
(396 pages)
3.PIC18F6525-IPT.pdf
(8 pages)
4.PIC18F6525-IPT.pdf
(38 pages)
Specifications of PIC18F6621T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
40MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, LVD, POR, PWM, WDT
Number Of I /o
53
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
3.75K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TFQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3840 B
Interface Type
MSSP, SPI, I2C, EUSART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
53
Number Of Timers
2 x 8 bit
Operating Supply Voltage
4.2 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, DV164136, DM183032
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit
Data Rom Size
1024 B
Height
1 mm
Length
10 mm
Supply Voltage (max)
5.5 V
Supply Voltage (min)
4.2 V
Width
10 mm
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F6621T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC18F6525-IPT PDF datasheet #2
- PIC18F6525-IPT PDF datasheet #3
- PIC18F6525-IPT PDF datasheet #4
- Current page: 23 of 396
- Download datasheet (8Mb)
2.0
2.1
The PIC18F6525/6621/8525/8621 devices can be
operated in twelve different oscillator modes. The user
can program four configuration bits (FOSC3, FOSC2,
FOSC1 and FOSC0) to select one of these eight
modes:
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. ECIO+PLL
11. HS+SPLL
12. RCIO
2.2
In XT, LP, HS, HS+PLL or HS+SPLL Oscillator modes, a
crystal or ceramic resonator is connected to the OSC1
and OSC2 pins to establish oscillation. Figure 2-1 shows
the pin connections.
The PIC18F6525/6621/8525/8621 oscillator design
requires the use of a parallel cut crystal.
2005 Microchip Technology Inc.
Note:
LP
XT
HS
RC
EC
ECIO
HS+PLL
RCIO
ECIO+SPLL External Clock with software
OSCILLATOR
CONFIGURATIONS
Oscillator Types
Crystal Oscillator/Ceramic
Resonators
Use of a series cut crystal may give a
frequency out of the crystal manufacturers
specifications.
enabled
with PLL enabled
pin enabled
with software control
Low-Power Crystal
Crystal/Resonator
High-Speed Crystal/Resonator
External Resistor/Capacitor
External Clock
External Clock with I/O pin
High-Speed Crystal/Resonator
External Resistor/Capacitor with
I/O pin enabled
controlled PLL
External Clock with PLL and I/O
High-Speed Crystal/Resonator
External Resistor/Capacitor with
I/O pin enabled
PIC18F6525/6621/8525/8621
FIGURE 2-1:
TABLE 2-1:
These values are for design guidance only.
See notes following this table.
Note 1:
Mode
Note 1: Higher capacitance increases the stability
HS
XT
C1
C2
2:
3:
2: When operating below 3V V
3: Since each resonator/crystal has its own
4 MHz
2 kHz
(1)
(1)
of the oscillator but also increases the
start-up time.
using certain ceramic resonators at any
voltage, it may be necessary to use high
gain HS mode, try a lower frequency
resonator or switch to a crystal oscillator.
characteristics, the user should consult the
resonator/crystal manufacturer for appro-
priate values of external components or
verify oscillator performance.
See Table 2-1 and Table 2-2 for
recommended values of C1 and C2.
A series resistor (R
AT strip cut crystals.
R
16.0 MHz
XTAL
R
455 kHz
2.0 MHz
4.0 MHz
8.0 MHz
F
S
Freq
varies with the oscillator mode chosen.
(2)
Resonators Used:
CAPACITOR SELECTION FOR
CERAMIC RESONATORS
OSC2
OSC1
Ranges Tested:
CRYSTAL/CERAMIC
RESONATOR OPERATION
(HS, XT OR LP
CONFIGURATION)
68-100 pF
15-68 pF
15-68 pF
10-68 pF
10-22 pF
PIC18F6X2X/8X2X
S
R
) may be required for
C1
F
(3)
16 MHz
DS39612B-page 21
8 MHz
Sleep
DD
68-100 pF
15-68 pF
15-68 pF
10-68 pF
10-22 pF
, or when
To
Internal
Logic
C2
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