PIC16C662-10I/SP Microchip Technology, PIC16C662-10I/SP Datasheet - Page 11

• Manufacturer Part Number: PIC16C662-10I/SP
• Description: 8-Bit EPROM Microcontrollers with Analog Comparators
• Manufacturer: Microchip Technology

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