Datasheet

PIC16C77X
 1999-2013 Microchip Technology Inc. Advance Information DS30275B-page 5
1.0 DEVICE OVERVIEW
This document contains device-specific information.
Additional information may be found in the PICmicro™
Mid-Range Reference Manual, (DS33023), which may
be obtained from your local Microchip Sales Represen-
tative or downloaded from the Microchip website. The
Reference Manual should be considered a comple-
mentary document to this data sheet, and is highly rec-
ommended reading for a better understanding of the
device architecture and operation of the peripheral
modules.
There a two devices (PIC16C773 and PIC16C774)
covered by this datasheet. The PIC16C773 devices
come in 28-pin packages and the PIC16C774 devices
come in 40-pin packages. The 28-pin devices do not
have a Parallel Slave Port implemented.
The following two figures are device block diagrams
sorted by pin number; 28-pin for Figure 1-1 and 40-pin
for Figure 1-2. The 28-pin and 40-pin pinouts are listed
in Table 1 -1 and Ta ble 1 -2 , respectively.
FIGURE 1-1: PIC16C773 BLOCK DIAGRAM
EPROM
Program
Memory
4K x 14
13
Data Bus
8
14
Program
Bus
Instruction reg
Program Counter
8 Level Stack
(13-bit)
RAM
File
Registers
256 x 8
Direct Addr
7
RAM Addr
(1)
9
Addr MUX
Indirect
Addr
FSR reg
STATUS reg
MUX
ALU
W reg
Power-up
Timer
Oscillator
Start-up Timer
Power-on
Reset
Watchdog
Timer
Instruction
Decode &
Control
OSC1/CLKIN
OSC2/CLKOUT
MCLR
VDD, VSS
PORTA
PORTB
PORTC
RA4/T0CKI
RB0/INT
RB7:RB4
RC0/T1OSO/T1CKI
RC1/T1OSI/CCP2
RC2/CCP1
RC3/SCK/SCL
RC4/SDI/SDA
RC5/SDO
RC6/TX/CK
RC7/RX/DT
8
8
Brown-out
Reset
Note 1: Higher order bits are from the STATUS register.
USART
CCP1,2
Synchronous
Timer0 Timer1 Timer2
Serial Port
RA3/AN3/VREF+/VRH
RA2/AN2/VREF-/VRL
RA1/AN1
RA0/AN0
8
3
Timing
Generation
12-bit
ADC
Precision
Reference
RB1/SS
RB2/AN8
RB3/AN9/LVDIN
Low-voltage
Detect
AVDD
AVSS
774.book Page 5 Tuesday, January 29, 2013 12:02 PM