PIC18F6680-I/L Microchip Technology, PIC18F6680-I/L Datasheet - Page 154
PIC18F6680-I/L
Manufacturer Part Number
PIC18F6680-I/L
Description
Microcontrollers (MCU) 64KB 3328 RAM 52 I/O
Manufacturer
Microchip Technology
Datasheet
1.PCM18XK1.pdf
(496 pages)
Specifications of PIC18F6680-I/L
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3.25 KB
Interface Type
I2C/SPI/AUSART/CAN
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
53
Number Of Timers
5
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
Minimum Operating Temperature
- 40 C
On-chip Adc
12-ch x 10-bit
Program Memory Type
Flash
Program Memory Size
64 KB
Package / Case
PLCC-68
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F6680-I/L
Manufacturer:
RUBYCON
Quantity:
46 000
Part Number:
PIC18F6680-I/L
Manufacturer:
MICROCH
Quantity:
20 000
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PIC18F6585/8585/6680/8680
10.10 Parallel Slave Port (PSP)
PORTD also operates as an 8-bit wide Parallel Slave
Port, or microprocessor port, when control bit
PSPMODE (TRISE<4>) is set. It is asynchronously
readable and writable by the external world through RD
control input pin, RE0/RD/AD8 and WR control input
pin, RE1/WR/AD9.
The PSP can directly interface to an 8-bit micro-
processor data bus. The external microprocessor can
read or write the PORTD latch as an 8-bit latch. Setting
bit PSPMODE enables port pin RE0/RD/AD8 to be the
RD input, RE1/WR/AD9 to be the WR input and
RE2/CS/AD10 to be the CS (chip select) input. For this
functionality, the corresponding data direction bits of
the TRISE register (TRISE<2:0>) must be configured
as inputs (set). The A/D port configuration bits
PCFG2:PCFG0 (ADCON1<2:0>) must be set, which
will configure pins RE2:RE0 as digital I/O.
A write to the PSP occurs when both the CS and WR
lines are first detected low. A read from the PSP occurs
when both the CS and RD lines are first detected low.
The PORTE I/O pins become control inputs for
the
(PSPCON<4>) is set. In this mode, the user must make
sure that the TRISE<2:0> bits are set (pins are config-
ured as digital inputs) and the ADCON1 is configured
for digital I/O. In this mode, the input buffers are TTL.
DS30491C-page 152
Note:
microprocessor
For PIC18F8X8X devices, the Parallel
Slave
Microcontroller mode.
Port
port
is
when
available
bit
PSPMODE
only
in
FIGURE 10-28:
One bit of PORTD
Note: I/O pin has protection diodes to V
Data Bus
Set Interrupt Flag
PSPIF (PIR1<7>)
WR LATD
or
PORTD
RD PORTD
RD LATD
TRIS Latch
Data Latch
Q
D
CK
EN
EN
Q
D
PORTD AND PORTE
BLOCK DIAGRAM
(PARALLEL SLAVE PORT)
2004 Microchip Technology Inc.
Chip Select
Read
Write
DD
and V
TTL
TTL
TTL
TTL
SS
.
RDx
pin
CS
WR
RD
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