Datasheet

© 2009 Microchip Technology Inc. DS22233A-page 11
MCP434X/436X
Weak Pull-up
Current
I
PU
— — 1.75 mA Internal V
DD
pull-up, V
IHH
pull-down,
V
DD
= 5.5V, V
CS
= 12.5V
—170—µACS
pin, V
DD
= 5.5V, V
CS
= 3V
CS Pull-up /
Pull-down
Resistance
R
CS
—16—kΩ V
DD
= 5.5V, V
CS
= 3V
RESET
Pull-up
Resistance
R
RESET
—16—kΩ V
DD
= 5.5V, V
RESET
= 0V
Input Leakage
Current
I
IL
-1 — 1 µA V
IN
= V
DD
(all pins) and
V
IN
= V
SS
(all pins except RESET)
Pin Capacitance C
IN
, C
OUT
—10—pFf
C
= 20 MHz
RAM (Wiper, TCON) Value
Value Range N 0h — 1FFh hex 8-bit device
0h — 1FFh hex 7-bit device
TCON POR/BOR
Setting
1FF hex All Terminals connected
EEPROM
Endurance E
ndurance
— 1M — Cycles
EEPROM Range N 0h — 1FFh hex
Initial NV Wiper
POR/BOR Setting
N 080h hex 8-bit WiperLock Technology = Off
040h hex 7-bit WiperLock Technology = Off
Initial EEPROM
POR/BOR Setting
N 000h hex
EEPROM
Programming
Write Cycle Time
t
WC
—310ms
Power Requirements
Power Supply
Sensitivity
(MCP43X1)
PSS — 0.0015 0.0035 %/% 8-bit V
DD
= 2.7V to 5.5V,
V
A
= 2.7V, Code = 80h
— 0.0015 0.0035 %/% 7-bit V
DD
= 2.7V to 5.5V,
V
A
= 2.7V, Code = 40h
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.