MCP6541/1R/1U/2/3/4
3.0
PIN DESCRIPTIONS
Descriptions of the pins are listed in Table 3-1.
TABLE 3-1:
PIN FUNCTION TABLE
MCP6541R
MCP6541U
MCP6542
MCP6543
MCP6544
MCP6541
MCP6541
(PDIP,
(SOT-23-5,
SOIC,
SC-70-5)
MSOP)
Symbol
Description
6
2
3
7
—
—
—
—
—
—
4
—
—
—
—
1, 5, 8
1
4
3
5
—
—
—
—
—
—
2
—
—
—
—
—
1
4
3
2
—
—
—
—
—
—
5
—
—
—
—
—
4
1
3
5
—
—
—
—
—
—
2
—
—
—
—
—
1
2
3
8
5
6
7
—
—
—
4
—
—
—
—
—
6
2
3
7
—
—
—
—
—
—
4
—
—
—
8
1, 5
1
2
3
4
5
6
7
8
9
10
11
12
13
14
—
—
OUT, OUTA Digital Output (comparator A)
V
IN
–, V
INA
– Inverting Input (comparator A)
V
IN
+, V
INA
+ Non-inverting Input (comparator A)
V
DD
V
INB
+
V
INB
–
OUTB
OUTC
V
INC
–
V
INC
+
V
SS
V
IND
+
V
IND
–
OUTD
CS
NC
Positive Power Supply
Non-inverting Input (comparator B)
Inverting Input (comparator B)
Digital Output (comparator B)
Digital Output (comparator C)
Inverting Input (comparator C)
Non-inverting Input (comparator C)
Negative Power Supply
Non-inverting Input (comparator D)
Inverting Input (comparator D)
Digital Output (comparator D)
Chip Select
No Internal Connection
3.1
Analog Inputs
3.4
Power Supply (V
SS
and V
DD
)
The comparator non-inverting and inverting inputs are
high-impedance CMOS inputs with low bias currents.
3.2
CS Digital Input
The positive power supply pin (V
DD
) is 1.6V to 5.5V
higher than the negative power supply pin (V
SS
). For
normal operation, the other pins are at voltages
between V
SS
and V
DD
.
Typically, these parts are used in a single (positive)
supply configuration. In this case, V
SS
is connected to
ground and V
DD
is connected to the supply. V
DD
will
need a local bypass capacitor (typically 0.01 µF to
0.1 µF) within 2 mm of the V
DD
pin. These can share a
bulk capacitor with nearby analog parts (within
100 mm), but it is not required.
This is a CMOS, Schmitt-triggered input that places the
part into a low power mode of operation.
3.3
Digital Outputs
The comparator outputs are CMOS, push-pull digital
outputs. They are designed to be compatible with
CMOS and TTL logic and are capable of driving heavy
DC or capacitive loads.
©
2006 Microchip Technology Inc.
DS21696E-page 13
MICROCHIP [ MICROCHIP TECHNOLOGY ]
