Datasheet

MCP19111
DS22331A-page 10  2013 Microchip Technology Inc.
2.0 PIN DESCRIPTION
The 28-Lead MCP19111 device features pins that have
multiple functions associated with each pin. Table 2-1
provides a description of the different functions. See
Section 2.1 “Detailed Pin Functional Description”
for more detailed information.
TABLE 2-1: MCP19111 PINOUT DESCRIPTION
Name Function
Input
Type
Output
Type
Description
GPA0/AN0/ANALOG_TEST GPA0 TTL CMOS General purpose I/O
AN0 AN — A/D Channel 0 input.
ANALOG_TEST — — Internal analog signal multiplexer output
(1)
GPA1/AN1/CLKPIN GPA1 TTL CMOS General purpose I/O
AN1 AN — A/D Channel 1 input.
CLKPIN — — Switching frequency clock input or output
(2 ,3)
GPA2/AN2/T0CKI/INT GPA2 TTL CMOS General purpose I/O
AN2 AN — A/D Channel 2 input
T0CKI ST — Timer0 clock input
INT ST — External interrupt
GPA3/AN3 GPA3 TTL CMOS General purpose I/O
AN3 AN — A/D Channel 3 input
GPA4 GPA4 TTL OD General purpose I/O
GPA5/MCLR
GPA5 TTL — General purpose input only
MCLR
ST — Master Clear with internal pull-up
GPA6 GPA6 ST CMOS General purpose I/O
GPA7/SCL GPA7 ST OD General purpose open drain I/O
SCL I
2
CODI
2
C clock
GPB0/SDA GPB0 TTL OD
SDA I
2
CODI
2
C data input/output
GPB1/AN4/EAPIN GPB1 TTL CMOS General purpose I/O
AN4 AN — A/D Channel 4 input
EAPIN — — Error amplifier signal input/output
(3)
GPB2/AN5 GPB2 TTL CMOS General purpose I/O
AN5 AN — A/D Channel 5 input
GPB4/AN6/ICSPDAT GPB4 TTL CMOS General purpose I/O
AN6 AN — A/D Channel 6 input
ICSPDAT ST CMOS Primary Serial Programming Data I/O
Legend: AN = Analog input or output CMOS =CMOS compatible input or output OD = Open Drain
TTL = TTL compatible input ST =Schmitt Trigger input with CMOS levels I
2
C = Schmitt Trigger input with I
2
C
Note 1: Analog Test is selected when the ATSTCON<BNCHEN> bit is set.
2: Selected when device is functioning as multiple output master or slave by proper configuration of the MLTPH<2:0> bits
in the BUFFCON register.
3: Selected when device is functioning as multi-phase master or slave by proper configuration of the MLTPH<2:0> bits in
the BUFFCON register.