Datasheet

MCP131X/2X
DS21985D-page 8  2005-2012 Microchip Technology Inc.
RST/RST Low-Level Output Voltage V
OL
——0.3VI
OL
= 50 µA, 1.0V  V
DD
 1.5V
——0.3VI
OL
= 100 µA,
1.5V  V
DD
 2.5V
——0.3VI
OL
= 2 mA, 2.5V  V
DD
 4.5V
——0.3VI
OL
= 4 mA, V
DD
 4.5V
RST/RST
High-Level Output Voltage V
OH
V
DD
–
0.7
—— VI
OH
= 2.5 mA, V
DD
 2.5V
(Push-Pull Outputs only) V
DD
–
0.7
—— VI
OH
= 500 µA, V
DD
 1.5V
Input Low Voltage (MR
and WDI pins) V
IL
V
SS
—0.3V
DD
V
Input High Voltage (MR
and WDI pins) V
IH
0.7 V
DD
—V
DD
V
Open-Drain High Voltage on Output
(Note 4)
V
ODH
——13.5
(4)
V Open-Drain Output pin only,
V
DD
= 3.0V, Time voltage >
5.5V applied  100 s,
current into pin limited to 2 mA,
+25°C operation
recommended
(Note 4, Note 5)
Input Leakage Current (MR
and WDI) I
IL
——±1µAV
SS
 V
PIN
 V
DD
Open-Drain Output Leakage Current
(MCP1316M, MCP1318M,
MCP1319M, MCP1320, MCP1321,
and MCP1322 only)
I
OD
—0.0031.0 µA
Pull-up Resistance MR
pin R
PU
—52—k V
DD
= 5.5V
WDI pin — 52 — k V
DD
= 5.5V
RST
pin — 4.7 — k V
DD
= 5.5V,
MCP131XM devices only
Input Pin Capacitance (MR
and WDI) C
I
—100—pF
Output Pin Capacitive Loading
(RST and RST
)
C
O
— — 50 pF This is the tester loading to
meet the AC timing
specifications.
DC CHARACTERISTICS (CONTINUED)
Electrical Specifications: Unless otherwise indicated, all limits are specified for V
DD
= 1V to 5.5V, R
PU
= 100 k
(only MCP1320, MCP1321 and MCP1322), T
A
= -40°C to +125°C.
Parameters Sym Min Typ Max Units Conditions
Note 1: Trip point is ±1.5% from typical value.
2: Trip point is ±2.5% from typical value.
3: Hysteresis is minimum = 1%, maximum = 6% at +25°C.
4: This specification allows this device to be used in PIC
®
microcontroller applications that require the In-
Circuit Serial Programming™ (ICSP™) feature (see device-specific programming specifications for
voltage requirements). The total time that the RST
pin can be above the maximum device operational
voltage (5.5V) is 100s. Current into the RST
pin should be limited to 2 mA. It is recommended that the
device operational temperature be maintained between 0°C to +70°C (+25°C preferred). For additional
information, refer to Figure 2-35.
5: This parameter is established by characterization and is not 100% tested.
6: Custom ordered voltage trip point; minimum order volume requirement. Information available upon request.