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PIC16C641-04/SP Datasheet(PDF) 11 Page - Microchip Technology

Part # PIC16C641-04/SP
Description  8-Bit EPROM Microcontrollers with Analog Comparators
PDF  136 Pages
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Manufacturer  MICROCHIP [Microchip Technology]
Direct Link  http://www.microchip.com
Logo MICROCHIP - Microchip Technology

PIC16C641-04/SP Datasheet(HTML) 11 Page - Microchip Technology

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© 1996 Microchip Technology Inc.
Preliminary
DS30559A-page 11
PIC16C64X & PIC16C66X
FIGURE 3-2:
PIC16C661/662 BLOCK DIAGRAM
EPROM
Program
Memory
13
Data Bus
8
14
Program
Bus
Instruction reg
Program Counter
8 Level Stack
(13-bit)
RAM
File
Registers
Direct Addr
7
RAM Bank
9
Addr MUX
Indirect
Addr
FSR reg
STATUS reg
MUX
ALU
W reg
Instruction
Decode &
Control
Timing
Generation
OSC1/CLKIN
OSC2/CLKOUT
Voltage
8
3
Timer0
PORTA
Comparator
RA3/AN3
RA2/AN2/VREF
RA1/AN1
RA0/AN0
Reference
RA4/T0CKI
+
-
+
-
PORTB
RB0/INT
Select
RB1
RB2
RB3
RB4
RB5
RB6
RB7
PORTC
RC0
RC1
RC2
RC3
RC4
RC5
RC6
RC7
PORTD
RD0/PSP0
RD1/PSP1
RD2/PSP2
RD3/PSP3
RD4/PSP4
RD5/PSP5
RD6/PSP6
RD7/PSP7
PORTE
RE0/RD
RE1/WR
RE2/CS
Parallel
Slave
Port
RA5
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
MCLR
VDD, VSS
Brown-out
Reset
Parity Error
Reset
PIC16C661 has 2K x 14 Program Memory and 128 x 8 RAM
PIC16C662 has 4K x 14 Program Memory and 176 x 8 RAM



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