PIC16C773 Microchip Technology, PIC16C773 Datasheet - Page 8

• Manufacturer Part Number: PIC16C773
• Description: 28/40-Pin/ 8-Bit CMOS Microcontrollers w/ 12-Bit A/D
• Manufacturer: Microchip Technology

PIC16C77X
TABLE 1-2
DS30275A-page 8
Pin Name
OSC1/CLKIN
OSC2/CLKOUT
MCLR/V
RA0/AN0
RA1/AN1
RA2/AN2/V
RA3/AN3/V
RA4/T0CKI
RA5/AN4
RB0/INT
RB1/SS
RB2/AN8
RB3/AN9/LVDIN
RB4
RB5
RB6
RB7
Legend: I = input
Note 1: This buffer is a Schmitt Trigger input when configured for the multiplexed function.
2: This buffer is a Schmitt Trigger input when used in serial programming mode.
3: This buffer is a Schmitt Trigger input when configured as general purpose I/O and a TTL input when used in the Parallel
4: This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.
PP
Slave Port mode (for interfacing to a microprocessor bus).
REF
REF
-/VRL
+/VRH
PIC16C774 PINOUT DESCRIPTION
O = output
— = Not used
Pin#
DIP
13
14
33
34
35
36
37
38
39
40
1
2
3
4
5
6
7
PLCC
Pin#
15
36
37
41
42
43
44
14
38
39
2
3
4
5
6
7
8
Pin#
QFP
30
31
18
19
20
21
22
23
24
10
11
14
15
16
17
8
9
I/O = input/output
TTL = TTL input
Advance Information
I/O/P
Type
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/P
O
I
ST/CMOS
TTL/ST
TTL/ST
TTL/ST
TTL/ST
Buffer
Type
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
TTL
ST
ST
—
(1)
(1)
(2)
(2)
(4)
P = power
ST = Schmitt Trigger input
Description
Oscillator crystal input/external clock source input.
Oscillator crystal output. Connects to crystal or resonator
in crystal oscillator mode. In RC mode, OSC2 pin outputs
CLKOUT which has 1/4 the frequency of OSC1, and
denotes the instruction cycle rate.
Master clear (reset) input or programming voltage input.
This pin is an active low reset to the device.
PORTA is a bi-directional I/O port.
PORTB is a bi-directional I/O port. PORTB can be soft-
ware programmed for internal weak pull-up on all inputs.
RA0 can also be analog input0
RA1 can also be analog input1
RA2 can also be analog input2 or negative analog
reference voltage input or internal voltage reference
low
RA3 can also be analog input3 or positive analog
reference voltage input or internal voltage reference
high
RA4 can also be the clock input to the Timer0 timer/
counter. Output is open drain type.
RA5 can also be analog input4
RB0 can also be the external interrupt pin.
RB1 can also be the SSP slave select
RB2 can also be analog input8
RB3 can also be analog input9 or input reference for
low voltage detect
Interrupt on change pin.
Interrupt on change pin.
Interrupt on change pin. Serial programming clock.
Interrupt on change pin. Serial programming data.
1999 Microchip Technology Inc.