PIC16CR56AT-I/SS View Datasheet(PDF) - Microchip Technology
Part Name
Description
Manufacturer
PIC16CR56AT-I/SS Datasheet PDF : 192 Pages
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PIC16C5X
TABLE 3-2: PINOUT DESCRIPTION - PIC16C55, PIC16C57, PIC16CR57
Pin Name
Pin Number
Pin Buffer
DIP SOIC SSOP Type Type
Description
RA0
RA1
RA2
RA3
RB0
RB1
RB2
RB3
RB4
RB5
RB6
RB7
RC0
RC1
RC2
RC3
RC4
RC5
RC6
RC7
T0CKI
6
6
5 I/O TTL Bi-directional I/O port
7
7
6 I/O TTL
8
8
7 I/O TTL
9
9
8 I/O TTL
10
10
9 I/O TTL Bi-directional I/O port
11
11
10 I/O TTL
12
12
11 I/O TTL
13
13
12 I/O TTL
14
14
13 I/O TTL
15
15
15 I/O TTL
16
16
16 I/O TTL
17
17
17 I/O TTL
18
18
18 I/O TTL Bi-directional I/O port
19
19
19 I/O TTL
20
20
20 I/O TTL
21
21
21 I/O TTL
22
22
22 I/O TTL
23
23
23 I/O TTL
24
24
24 I/O TTL
25
25
25 I/O TTL
1
1
2
I
ST Clock input to Timer0. Must be tied to VSS or VDD, if not in
use, to reduce current consumption.
MCLR
28
28
28
I
ST Master clear (RESET) input. This pin is an active low
RESET to the device.
OSC1/CLKIN 27
27
27
I
ST Oscillator crystal input/external clock source input.
OSC2/CLKOUT 26
26
26 O
— 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.
VDD
2
2
3,4 P
— Positive supply for logic and I/O pins.
VSS
4
4
1,14 P
— Ground reference for logic and I/O pins.
N/C
3,5 3,5 — — — Unused, do not connect.
Legend: I = input, O = output, I/O = input/output, P = power, — = Not Used, TTL = TTL input, ST = Schmitt Trigger
input
DS30453E-page 12
Preliminary
1997-2013 Microchip Technology Inc.
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