PIC18F452I/L Microchip Technology, PIC18F452I/L Datasheet - Page 93
![no-image](/images/manufacturer_photos/0/4/439/microchip_technology_sml.jpg)
PIC18F452I/L
Manufacturer Part Number
PIC18F452I/L
Description
IC, 8BIT MCU, PIC18F, 40MHZ, LCC-44
Manufacturer
Microchip Technology
Datasheet
1.PIC18F242-ISO.pdf
(332 pages)
Specifications of PIC18F452I/L
Controller Family/series
PIC18
No. Of I/o's
34
Eeprom Memory Size
256Byte
Ram Memory Size
1.5KB
Cpu Speed
40MHz
No. Of Timers
4
Core Size
8 Bit
Program Memory Size
16 KWords
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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FIGURE 9-5:
FIGURE 9-6:
© 2006 Microchip Technology Inc.
Note 1:
Note 1:
2:
2:
3:
I/O pins have diode protection to V
To enable weak pull-ups, set the appropriate TRIS bit(s) and clear the RBPU bit (OPTION_REG<7>).
CCP Output
CCP2 Input
I/O pin has diode protection to V
To enable weak pull-ups, set the appropriate DDR bit(s) and clear the RBPU bit (INTCON2<7>).
The CCP2 input/output is multiplexed with RB3 if the CCP2MX bit is enabled (=’0’) in the configuration register.
RD PORTB
Enable
CCP Output
WR LATB or
WR PORTB
WR TRISB
RBPU
Data Bus
BLOCK DIAGRAM OF RB2:RB0 PINS
BLOCK DIAGRAM OF RB3 PIN
(3)
(2)
CCP2MX
(3)
(3)
Data Bus
WR TRIS
WR Port
RB0/INT
RBPU
(2)
Schmitt Trigger
Buffer
RD TRISB
RD PORTB
RD LATB
TRIS Latch
Data Latch
D
D
CK
CK
DD
DD
and V
Q
Q
and V
RD TRIS
RD Port
TRIS Latch
Data Latch
CCP2MX = 0
D
D
CK
CK
SS
SS
.
Schmitt Trigger
Buffer
.
Q
Q
Q
1
0
EN
D
Q
EN
TTL
Input
Buffer
D
V
P
RD Port
DD
Weak
Pull-up
V
I/O pin
V
N
P
SS
DD
(1)
TTL
Input
Buffer
V
P
DD
Weak
Pull-up
PIC18FXX2
I/O pin
(1)
DS39564C-page 91
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