Datasheet

MCP434X/436X
DS22233A-page 10 © 2009 Microchip Technology Inc.
Digital Inputs/Outputs (CS, SDI, SDO, SCK, WP, RESET)
Schmitt Trigger
High Input
Threshold
V
IH
0.45 V
DD
—— V2.7V ≤ V
DD
≤ 5.5V
(Allows 2.7V Digital V
DD
with
5V Analog V
DD
)
0.5 V
DD
—— V1.8V ≤ V
DD
≤ 2.7V
Schmitt Trigger
Low Input
Threshold
V
IL
— — 0.2V
DD
V
Hysteresis of
Schmitt Trigger
Inputs
V
HYS
—0.1V
DD
—V
High Voltage Input
Entry Voltage
V
IHH
8.5 — 12.5
(6)
V Threshold for WiperLock™ Technology
High Voltage Input
Exit Voltage
V
IHH
——V
DD
+
0.8V
V
High Voltage Limit V
MAX
——12.5
(6)
V Pin can tolerate V
MAX
or less.
Output Low
Voltage (SDO)
V
OL
V
SS
—0.3V
DD
VI
OL
= 5 mA, V
DD
= 5.5V
V
SS
—0.3V
DD
VI
OL
= 1 mA, V
DD
= 1.8V
Output High
Voltage (SDO)
V
OH
0.7V
DD
—V
DD
VI
OH
= -2.5 mA, V
DD
= 5.5V
0.7V
DD
—V
DD
VI
OL
= -1 mA, V
DD
= 1.8V
AC/DC CHARACTERISTICS (CONTINUED)
DC Characteristics
Standard Operating Conditions (unless otherwise specified)
Operating Temperature –40°C ≤ T
A
≤ +125°C (extended)
All parameters apply across the specified operating ranges unless noted.
V
DD
= +2.7V to 5.5V, 5 kΩ, 10 kΩ, 50 kΩ, 100 kΩ devices.
Typical specifications represent values for V
DD
= 5.5V, T
A
= +25°C.
Parameters Sym Min Typ Max Units Conditions
Note 1: Resistance is defined as the resistance between terminal A to terminal B.
2: INL and DNL are measured at V
W
with V
A
= V
DD
and V
B
= V
SS
.
3: MCP43X1 only.
4: MCP43X2 only, includes V
WZSE
and V
WFSE
.
5: Resistor terminals A, W and B’s polarity with respect to each other is not restricted.
6: This specification by design.
7: Non-linearity is affected by wiper resistance (R
W
), which changes significantly over voltage and
temperature.
8: The MCP43X1 is externally connected to match the configurations of the MCP43X2, and then tested.
9: POR/BOR is not rate dependent.
10: Supply current is independent of current through the resistor network.