PIC16F628-20/P Microchip Technology Inc., PIC16F628-20/P Datasheet - Page 37
PIC16F628-20/P
Manufacturer Part Number
PIC16F628-20/P
Description
18 PIN, 3.5 KB FLASH, 224 RAM, 16 I/O
Manufacturer
Microchip Technology Inc.
Datasheet
1.PIC16F628-20P.pdf
(170 pages)
Specifications of PIC16F628-20/P
Comparators
2
Cpu Speed
5 MIPS
Eeprom Memory
128 Bytes
Input Output
16
Interface
SCI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
18-pin PDIP
Programmable Memory
3.5K Bytes
Ram Size
224 Bytes
Speed
20 MHz
Timers
2-8-bit, 1-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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FIGURE 5-8:
2003 Microchip Technology Inc.
RBPU
Data Bus
WR PORTB
WR TRISB
RD TRISB
RD PORTB
INT
D
D
TRIS Latch
Data Latch
CK
CK
Schmitt
Trigger
Q
Q
Q
Q
BLOCK DIAGRAM OF
RB0/INT PIN
Q
EN
EN
D
TTL
Input
Buffer
V
P
DD
Weak Pull-up
V
V
DD
SS
RB0/INT
Preliminary
FIGURE 5-9:
WR PORTB
WR TRISB
RD TRISB
RD PORTB
RBPU
Peripheral OE
USART Receive Input
PORT/PERIPHERAL Select
USART Data Output
Data Bus
Note
1:
2:
Port/Peripheral select signal selects between port
data and peripheral output.
Peripheral OE (output enable) is only active if
peripheral select is active.
(2)
TRIS Latch
Data Latch
D
D
CK
CK
BLOCK DIAGRAM OF
RB1/RX/DT PIN
(1)
Q
Q
Schmitt
Q
Trigger
Q
PIC16F62X
Q
EN
0
1
D
DS40300C-page 35
TTL
Input
Buffer
V
P
DD
V
V
Weak
Pull-up
DD
SS
RX/DT
RB1/
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