Microchip Technology MA240017 Datenbogen

DS39927C-page 16

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T1CK

10

7

12

9

I

ST

Timer1 Clock

T2CK

18

15

26

23

I

ST

Timer2 Clock

T3CK

18

15

26

23

I

ST

Timer3 Clock

U1CTS

12

9

17

14

I

ST

UART1 Clear to Send Input

U1RTS

13

10

18

15

O

—

UART1 Request to Send Output

U1RX

6

3

6

3

I

ST

UART1 Receive

U1TX

11

8

16

13

O

—

UART1 Transmit Output

V

DD

20

17

13, 28

10, 25

P

—

Positive Supply for Peripheral Digital Logic and 
I/O Pins

V

PP

1

18

1

26

P

—

Programming Mode Entry Voltage

V

REF

-

3

20

3

28

I

ANA

A/D and Comparator Reference Voltage (low) 
Input

V

REF

+

2

19

2

27

I

ANA

A/D and Comparator Reference Voltage (high) 
Input

V

SS

19

16

8, 27

5, 24

P

—

Ground Reference for Logic and I/O Pin

ST = Schmitt Trigger input buffer, ANA = Analog level input/output, I

2

C™ = I

2

C/SMBus input buffer

Alternative multiplexing when the I2C1SEL Configuration bit is cleared.