PIC18C452-E/P Microchip Technology, PIC18C452-E/P Datasheet - Page 92
PIC18C452-E/P
Manufacturer Part Number
PIC18C452-E/P
Description
IC MCU OTP 16KX16 A/D 40DIP
Manufacturer
Microchip Technology
Series
PIC® 18Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16C770-ISO.pdf
(8 pages)
3.PIC18C242-ISO.pdf
(305 pages)
4.PIC18C242-ISO.pdf
(12 pages)
Specifications of PIC18C452-E/P
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
33
Program Memory Size
32KB (16K x 16)
Program Memory Type
OTP
Ram Size
1.5K x 8
Voltage - Supply (vcc/vdd)
4.2 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
External
Operating Temperature
-40°C ~ 125°C
Package / Case
40-DIP (0.600", 15.24mm)
Processor Series
PIC18C
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1.5 KB
Interface Type
MSSP, SPI, I2C, PSP, USART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
34
Number Of Timers
1 x 16 bit
Operating Supply Voltage
2.5 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
Through Hole
3rd Party Development Tools
52715-96, 52716-328, 52717-734, 52712-325, EWPIC18
Development Tools By Supplier
ICE2000, DM163022, DV164136
Minimum Operating Temperature
- 40 C
On-chip Adc
8
For Use With
I3DB18C452 - BOARD DAUGHTER ICEPIC3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Details
Other names
PIC18C452E/P
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC18C452-E/PT
Manufacturer:
Microchip Technology
Quantity:
10 000
- PIC16F616T-ISL PDF datasheet
- PIC16C770-ISO PDF datasheet #2
- PIC18C242-ISO PDF datasheet #3
- PIC18C242-ISO PDF datasheet #4
- Current page: 92 of 305
- Download datasheet (6Mb)
PIC18CXX2
8.6
The Parallel Slave Port is implemented on the 40-pin
devices only (PIC18C4X2).
PORTD 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 and WR control input pin RE1/WR.
It can directly interface to an 8-bit microprocessor 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 to be the RD input, RE1/WR
to be the WR input and RE2/CS 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 config-
uration 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
microprocessor port when bit PSPMODE (TRISE<4>)
is set. In this mode, the user must make sure that the
TRISE<2:0> bits are set (pins are configured as digital
inputs), and the ADCON1 is configured for digital I/O.
In this mode, the input buffers are TTL.
FIGURE 8-11:
DS39026C-page 90
PORTD<7:0>
PSPIF
Parallel Slave Port
OBF
CS
WR
RD
IBF
Q1
PARALLEL SLAVE PORT WRITE WAVEFORMS
Q2
Q3
Q4
Q1
Q2
FIGURE 8-10:
One bit of PORTD
Data Bus
Q3
Set Interrupt Flag
PSPIF (PIR1<7>)
Note: I/O pin has protection diodes to V
WR LATD
or
PORTD
RD PORTD
RD LATD
Q4
Data Latch
Q
D
CK
Q1
EN
EN
Q
D
PORTD AND PORTE
BLOCK DIAGRAM
(PARALLEL SLAVE
PORT)
2001 Microchip Technology Inc.
Q2
Chip Select
Read
Write
Q3
TTL
TTL
TTL
TTL
DD
Q4
and V
SS
RDx
pin
RD
CS
WR
.
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