PIC18F67J60T-I/PT Microchip Technology, PIC18F67J60T-I/PT Datasheet - Page 112
![128KB Flash, 12KB RAM, 10BASE-T Ethernet 64 TQFP 10x10x1mm T/R](/photos/6/81/68123/c04-066_pf_sml.jpg)
PIC18F67J60T-I/PT
Manufacturer Part Number
PIC18F67J60T-I/PT
Description
128KB Flash, 12KB RAM, 10BASE-T Ethernet 64 TQFP 10x10x1mm T/R
Manufacturer
Microchip Technology
Series
PIC® 18Fr
Datasheets
1.PIC18F66J65-IPT.pdf
(8 pages)
2.PIC18F66J65-IPT.pdf
(480 pages)
3.PIC18F66J65-IPT.pdf
(4 pages)
4.PIC18F66J65-IPT.pdf
(10 pages)
Specifications of PIC18F67J60T-I/PT
Core Processor
PIC
Core Size
8-Bit
Speed
41.667MHz
Connectivity
Ethernet, I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
39
Program Memory Size
128KB (64K x 16)
Program Memory Type
FLASH
Ram Size
3808 x 8
Voltage - Supply (vcc/vdd)
2 V ~ 3.6 V
Data Converters
A/D 11x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TFQFP
Processor Series
PIC18F
Core
PIC
Data Bus Width
8 bit
Data Ram Size
3808 B
Interface Type
Display Driver, Ethernet, EUSART, I2C, MSSP, SPI
Maximum Clock Frequency
41.667 MHz
Number Of Programmable I/os
39
Number Of Timers
5
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, DV164136, DM183033
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 11 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
DM183033 - BOARD DEMO INTERNET RADIOAC162064 - HEADER INTFC MPLABICD2 64/80/100AC164327 - MODULE SKT FOR 64TQFP
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18F67J60T-I/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
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PIC18F97J60 FAMILY
7.3
While it may be assumed that external memory devices
will operate at the microcontroller clock rate, this is
often not the case. In fact, many devices require longer
times to write or retrieve data than the time allowed by
the execution of table read or table write operations.
To compensate for this, the external memory bus can
be configured to add a fixed delay to each table opera-
tion using the bus. Wait states are enabled by setting
the WAIT Configuration bit. When enabled, the amount
of
(MEMCON<5:4>). The delay is based on multiples of
microcontroller instruction cycle time and are added
following the instruction cycle when the table operation
is executed. The range is from no delay to 3 T
(default value).
7.4
With the exception of the upper address lines,
A19:A16, the pins associated with the external memory
bus are equipped with weak pull-ups. The pull-ups are
controlled
PORTA<7>. They are named RDPU, REPU and RJPU
and control pull-ups on PORTD, PORTE and PORTJ,
respectively. Setting one of these bits enables the
corresponding pull-ups for that port. All pull-ups are
disabled by default on all device Resets.
In Extended Microcontroller mode, the port pull-ups
can be useful in preserving the memory state on the
external bus while the bus is temporarily disabled
(EBDIS = 1).
7.5
The PIC18F97J60 family of devices is capable of
operating in one of two program memory modes, using
combinations of on-chip and external program memory.
The functions of the multiplexed port pins depend on
the program memory mode selected, as well as the
setting of the EBDIS bit.
In Microcontroller Mode, the bus is not active and the
pins have their port functions only. Writes to the
MEMCOM register are not permitted. The Reset value
of EBDIS (‘0’) is ignored and the EMB pins behave as
I/O ports.
In Extended Microcontroller Mode, the external
program memory bus shares I/O port functions on the
pins. When the device is fetching, or doing table
read/table write operations on the external program
memory space, the pins will have the external bus
function.
If the device is fetching and accessing internal program
memory locations only, the EBDIS control bit will
change the pins from external memory to I/O port
functions. When EBDIS = 0, the pins function as the
external bus. When EBDIS = 1, the pins function as I/O
ports.
DS39762E-page 112
delay
Wait States
Port Pin Weak Pull-ups
Program Memory Modes and the
External Memory Bus
by
is
set
bits
by
located
the
at
WAIT1:WAIT0
LATA<7:6>
and
bits
CY
If the device fetches or accesses external memory
while EBDIS = 1, the pins will switch to the external
bus. If the EBDIS bit is set by a program executing from
external memory, the action of setting the bit will be
delayed until the program branches into the internal
memory. At that time, the pins will change from external
bus to I/O ports.
If the device is executing out of internal memory when
EBDIS = 0, the memory bus address/data and control
pins will not be active. They will go to a state where the
active address/data pins are tri-state; the CE, OE,
WRH, WRL, UB and LB signals are ‘1’ and ALE and
BA0 are ‘0’. Note that only those pins associated with
the current address width are forced to tri-state; the
other pins continue to function as I/O. In the case of
16-bit address width, for example, only AD<15:0>
(PORTD
(PORTH<3:0>) continue to function as I/O.
In all external memory modes, the bus takes priority
over any other peripherals that may share pins with it.
This includes the Parallel Slave Port and serial com-
munication modules which would otherwise take
priority over the I/O port.
7.6
In 16-Bit Data Width mode, the external memory
interface can be connected to external memories in
three different configurations:
• 16-Bit Byte Write
• 16-Bit Word Write
• 16-Bit Byte Select
The configuration to be used is determined by the
WM1:WM0
(MEMCON<1:0>). These three different configurations
allow the designer maximum flexibility in using both
8-bit and 16-bit devices with 16-bit data.
For all 16-Bit Data Width modes, the Address Latch
Enable (ALE) pin indicates that the address bits,
AD<15:0>, are available on the external memory inter-
face bus. Following the address latch, the Output
Enable signal (OE) will enable both bytes of program
memory at once to form a 16-bit instruction word. The
Chip Enable signal (CE) is active at any time that the
microcontroller accesses external memory, whether
reading or writing. It is inactive (asserted high)
whenever the device is in Sleep mode.
In Byte Select mode, JEDEC standard Flash memories
will require BA0 for the byte address line and one I/O
line to select between Byte and Word mode. The other
16-Bit Data Width modes do not need BA0. JEDEC
standard, static RAM memories will use the UB or LB
signals for byte selection.
16-Bit Data Width Modes
and
bits
PORTE)
in
© 2009 Microchip Technology Inc.
the
are
MEMCON
affected;
A19:A16
register
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