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SX48BD/SX52BD/SX52BD75/SX52BD100
2.2
Pin Descriptions
Name
Pin Type
Input Levels
Description
RA0
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability
RA1
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability
RA2
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability
RA3
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability
RA4
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability (52-pin pkg. only)
RA5
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability (52-pin pkg. only)
RA6
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability (52-pin pkg. only)
RA7
I/O
TTL/CMOS
Bidirectional I/O Pin; symmetrical source / sink capability (52-pin pkg. only)
RB0
I/O
TTL/CMOS/ST Bidirectional I/O Pin; comparator output; MIWU/Interrupt input
RB1
I/O
TTL/CMOS/ST Bidirectional I/O Pin; comparator negative input; MIWU/Interrupt input
RB2
I/O
TTL/CMOS/ST Bidirectional I/O Pin; comparator positive input; MIWU/Interrupt input
RB3
I/O
TTL/CMOS/ST Bidirectional I/O Pin; MIWU/Interrupt input
RB4
I/O
TTL/CMOS/ST Bidirectional I/O Pin; MIWU/Interrupt input, Timer T1 Capture Input 1
RB5
I/O
TTL/CMOS/ST Bidirectional I/O Pin; MIWU/Interrupt input, Timer T1 Capture Input 2
RB6
I/O
TTL/CMOS/ST Bidirectional I/O Pin; MIWU/Interrupt input, Timer T1 PWM/Compare Output
RB7
I/O
TTL/CMOS/ST Bidirectional I/O Pin; MIWU/Interrupt input, Timer T1 External Event Input
RC0
I/O
TTL/CMOS/ST Bidirectional I/O pin, Timer T2 Capture Input 1
RC1
I/O
TTL/CMOS/ST Bidirectional I/O pin, Timer T2 Capture Input 2
RC2
I/O
TTL/CMOS/ST Bidirectional I/O pin, Timer T2 PWM/Compare Output
RC3
I/O
TTL/CMOS/ST Bidirectional I/O pin, Timer T2 External Event Counter Input
RC4
I/O
TTL/CMOS/ST Bidirectional I/O pin
RC5
I/O
TTL/CMOS/ST Bidirectional I/O pin
RC6
I/O
TTL/CMOS/ST Bidirectional I/O pin
RC7
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD0
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD1
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD2
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD3
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD4
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD5
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD6
I/O
TTL/CMOS/ST Bidirectional I/O pin
RD7
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE0
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE1
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE2
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE3
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE4
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE5
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE6
I/O
TTL/CMOS/ST Bidirectional I/O pin
RE7
I/O
TTL/CMOS/ST Bidirectional I/O pin
RTCC
I
ST
Input to Real-Time Clock/Counter
MCLR
I
ST
Master Clear reset input – active low
OSC1/In/Vpp
I
ST
Crystal oscillator input – external clock source input
OSC2/Out
O
CMOS
Crystal oscillator output – in R/C mode, internally pulled to Vdd through weak
pull-up
Vdd
P
–
Positive supply pins (a total of four positive supply pins, one on each side of
the device)
Vss
P
–
Ground pins (a total of four ground pins, one on each side of the device)
Note:I = input, O = output, I/O = Input/Output, P = Power, TTL = TTL input, CMOS = CMOS input,
ST = Schmitt Trigger input, MIWU = Multi-Input Wakeup input
