PIC16LCR65AT-04E/TQ View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16LCR65AT-04E/TQ Datasheet PDF : 336 Pages
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PIC16C6X
TABLE 3-1: PIC16C61 PINOUT DESCRIPTION
Pin Name
DIP
Pin#
SOIC
Pin#
Pin Type
Buffer
Type
Description
OSC1/CLKIN
16
16
I
ST/CMOS(1) Oscillator crystal input/external clock source input.
OSC2/CLKOUT
15
15
O
—
Oscillator crystal output. Connects to crystal or resonator in crystal
oscillator mode. In RC mode, the pin outputs CLKOUT which has
1/4 the frequency of OSC1, and denotes the instruction cycle rate.
MCLR/VPP
4
4
I/P
ST
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.
RA0
17
17
I/O
TTL
RA1
18
18
I/O
TTL
RA2
1
1
I/O
TTL
RA3
2
2
I/O
TTL
RA4/T0CKI
3
3
I/O
ST
RA4 can also be the clock input to the Timer0 timer/counter.
Output is open drain type.
RB0/INT
PORTB is a bi-directional I/O port. PORTB can be software pro-
grammed for internal weak pull-up on all inputs.
6
6
I/O
TTL/ST(2)
RB0 can also be the external interrupt pin.
RB1
7
7
I/O
TTL
RB2
8
8
I/O
TTL
RB3
9
9
I/O
TTL
RB4
10
10
I/O
TTL
Interrupt on change pin.
RB5
11
11
I/O
TTL
Interrupt on change pin.
RB6
12
12
I/O
TTL/ST(3)
Interrupt on change pin. Serial programming clock.
RB7
13
13
I/O
TTL/ST(3)
Interrupt on change pin. Serial programming data.
VSS
5
5
P
—
Ground reference for logic and I/O pins.
VDD
14
14
P
—
Positive supply for logic and I/O pins.
Legend:
Note 1:
2:
3:
I = input O = output
I/O = input/output
P = power
— = Not used
TTL = TTL input
ST = Schmitt Trigger input
This buffer is a Schmitt Trigger input when configured in RC oscillator mode and a CMOS input otherwise.
This buffer is a Schmitt Trigger input when configured as the external interrupt.
This buffer is a Schmitt Trigger input when used in serial programming mode.
DS30234D-page 14
© 1997 Microchip Technology Inc.
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