PIC16C770 Microchip Technology Inc., PIC16C770 Datasheet - Page 7

• Manufacturer Part Number: PIC16C770
• Description: 18/20-pin, 8-bit Cmos Microcontrollers With 10/12-bit A/d
• Manufacturer: Microchip Technology Inc.

1.0
This document contains device-specific information.
Additional information may be found in the PICmicro
Mid-Range
(DS33023), which may be obtained from your local
Microchip Sales Representative or downloaded from
the Microchip website. The Reference Manual should
be considered a complementary document to this data
FIGURE 1-1:
OSC2/CLKOUT
2002 Microchip Technology Inc.
OSC1/CLKIN
4 MHz, 37 kHz
and ER mode
Note 1: Higher order bits are from the STATUS register.
DEVICE OVERVIEW
Internal
Program
Bus
MCU
Instruction reg
Generation
V
Instruction
Decode &
14
EPROM
DD
Program
Control
Memory
Timing
2K x 14
Enhanced CCP
, V
Family
PIC16C717 BLOCK DIAGRAM
(ECCP)
Timer0
SS
10-bit
ADC
13
Reference
Direct Addr
Program Memory
Start-up Timer
Program Counter
Brown-out
8 Level Stack
Watchdog
Read (PMR)
Power-up
Power-on
Oscillator
8
Timer
Reset
Timer
Reset
Serial Port (MSSP)
(13-bit)
Synchronous
Reference
Bandgap
Timer1
Master
Manual,
7
TM
8
3
Data Bus
Addr MUX
Registers
W reg
256 x 8
ALU
RAM
File
STATUS reg
Low-voltage
FSR reg
9
MUX
8
sheet, and is highly recommended reading for a better
understanding of the device architecture and operation
of the peripheral modules.
There are three devices (PIC16C717, PIC16C770 and
PIC16C771) covered by this data sheet. The
PIC16C717 device comes in 18/20-pin packages and
the PIC16C770/771 devices come in 20-pin packages.
The following two figures are device block diagrams of
the PIC16C717 and the PIC16C770/771.
Timer2
Detect
Addr
RAM
Indirect
PIC16C717/770/771
Addr
8
(1)
PORTA
PORTB
RA0/AN0
RA1/AN1/LVDIN
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/MCLR/V
RA6/OSC2/CLKOUT
RA7/OSC1/CLKIN
RB0/AN4/INT
RB1/AN5/SS
RB2/SCK/SCL
RB3/CCP1/P1A
RB4/SDI/SDA
RB5/SDO/P1B
RB6/T1OSO/T1CKI/P1C
RB7/T1OSI/P1D
DS41120B-page 5
REF
REF
PP
-/VRL
+/VRH