• Serial Interface Inactive Current (2.5 uA typical)
• High-Voltage Tolerant Digital Inputs: Up to 12.5V
• Wide Operating Voltage:
- 2.7V to 5.5V - Device Characteristics Specified
- 1.8V to 5.5V - Device Operation
• Wide Bandwidth (-3dB) Operation:
- 2 MHz (typ.) for 5.0 k Device
• Extended Temperature Range (-40°C to +125°C)
Description
The MCP45XX and MCP46XX devices offer a wide
range of product offerings using an I
2
C interface. This
family of devices support 7-bit and 8-bit resistor
networks, nonvolatile memory configurations, and
Potentiometer and Rheostat pinouts.
WiperLock Technology allows application-specific
calibration settings to be secured in the EEPROM.
Package Types (top view)
MCP45X1
Single Potentiometer
HVC / A0
SCL
SDA
V
SS
1
2
3
4
8
7
6
5
V
DD
P0B
P0W
P0A
MCP45X2
Single Rheostat
HVC / A0
SCL
SDA
V
SS
1
2
3
4
8
7
6
5
V
DD
A1
P0B
P0W
MSOP
HVC / A0 1
SCL 2
SDA 3
V
SS
4
EP
9
8 V
DD
7 P0B
6 P0W
5 P0A
HVC / A0 1
SCL 2
SDA 3
V
SS
4
MSOP
8 V
DD
EP
9
7 A1
6 P0B
5 P0W
DFN 3x3 (MF) *
DFN 3x3 (MF) *
MCP46X1
Dual Potentiometers
HVC/A0
SCL
SDA
V
SS
P1B
P1W
P1A
1
2
3
4
5
6
7
14
13
12
11
10
9
8
V
DD
A1
A2
WP
P0B
P0W
P0A
HVC/A0
V
DD
A1
A2
16 15 14 13
SCL
SDA
V
SS
V
SS
1
2
3
4
EP
17
5 6 7 8
P1B
P1W
P1A
P0A
12 WP
11 NC
10 P0B
9 P0W
TSSOP
QFN-16 4x4 (ML) *
MCP46X2
Dual Rheostat
HVC/A0
SCL
SDA
V
SS
P1B
1
2
3
4
5
10 V
DD
HVC / A0 1
9 A1
SCL 2
8 P0B
SDA 3
7 P0W
V
SS
4
6 P1W
P1B 5
10 V
DD
EP
11
9 A1
8 P0B
7 P0W
6 P1W
MSOP
DFN 3x3 (MF) *
* Includes Exposed Thermal Pad (EP); see
Table 3-1.
2008-2013 Microchip Technology Inc.
DS22107B-page 1
MCP454X/456X/464X/466X
Device Block Diagram
V
DD
V
SS
A2
A1
HVC/A0
SCL
I
2
C Interface
SDA
WP
Memory (16x9)
Wiper0 (V & NV)
Wiper1 (V & NV)
TCON
STATUS
Data EEPROM
(10 x 9-bits)
Power-up/
Brown-out
Control
I
2
C
Serial
Interface
Module &
Control
Logic
(WiperLock™
Technology)
P0A
Resistor
Network 0
(Pot 0)
Wiper 0
& TCON
Register
P0W
P0B
P1A
Resistor
Network 1
(Pot 1)
Wiper 1
& TCON
Register
P1W
P1B
For Dual Resistor Network
Devices Only
Device Features
WiperLock
Technology
POR Wiper
Setting
# of Steps
# of POTs
Control
Interface
Memory
Type
Resistance (typical)
R
AB
Options (k)
Wiper
- R
W
()
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
75
V
DD
Operating
Range
(2)
Device
Wiper
Configuration
MCP4531
(3)
MCP4532
(3)
MCP4541
MCP4542
MCP4551
(3)
MCP4552
(3)
MCP4561
MCP4562
MCP4631
(3)
MCP4632
MCP4641
MCP4642
MCP4651
(3)
MCP4652
(3)
MCP4661
MCP4662
Note 1:
2:
3:
(3)
1 Potentiometer
(1)
1
1
1
1
2
2
2
2
2
Rheostat
(1)
I
2
C
I
2
C
I
2
C
I
2
C
I
2
C
I
2
C
I
2
C
I
2
C
2
RAM
RAM
EE
EE
RAM
RAM
EE
EE
RAM
RAM
EE
EE
RAM
RAM
EE
EE
No
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
No
No
Yes
Yes
Mid-Scale 5.0, 10.0, 50.0, 100.0
Mid-Scale 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
Mid-Scale 5.0, 10.0, 50.0, 100.0
Mid-Scale 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
Mid-Scale 5.0, 10.0, 50.0, 100.0
Mid-Scale 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
Mid-Scale 5.0, 10.0, 50.0, 100.0
Mid-Scale 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
NV Wiper 5.0, 10.0, 50.0, 100.0
129 1.8V to 5.5V
129 1.8V to 5.5V
129 2.7V to 5.5V
129 2.7V to 5.5V
257 1.8V to 5.5V
257 1.8V to 5.5V
257 2.7V to 5.5V
257 2.7V to 5.5V
129 1.8V to 5.5V
129 1.8V to 5.5V
129 2.7V to 5.5V
129 2.7V to 5.5V
257 1.8V to 5.5V
257 1.8V to 5.5V
257 2.7V to 5.5V
257 2.7V to 5.5V
1 Potentiometer
Rheostat
Rheostat
Rheostat
1 Potentiometer
(1)
1 Potentiometer
(1)
Potentiometer
(1)
Rheostat
Rheostat
Rheostat
(1)
I
2
C
I C
I
2
C
I
2
C
I
2
C
I
2
C
I
2
C
I
2
C
2 Potentiometer
(1)
2 Potentiometer
(1)
2 Potentiometer
Rheostat
Floating either terminal (A or B) allows the device to be used as a Rheostat (variable resistor).
Analog characteristics only tested from 2.7V to 5.5V unless otherwise noted.
Please check Microchip web site for device release and availability
DS22107B-page 2
2008-2013 Microchip Technology Inc.
MCP454X/456X/464X/466X
1.0
1.1
ELECTRICAL CHARACTERISTICS
Absolute Maximum Ratings†
Voltage on V
DD
with respect to V
SS
........................................................................................................... -0.6V to +7.0V
Voltage on HVC/A0, A1, A2, SCL, SDA and WP with respect to V
SS
....................................................... -0.6V to 12.5V
Voltage on all other pins (PxA, PxW, and PxB) with respect to V
SS
..................................................-0.3V to V
DD
+ 0.3V
Input clamp current, I
IK
(V
I
< 0, V
I
> V
DD
, V
I
> V
PP ON
HV pins)........................................................................... ±20 mA
Output clamp current, I
OK
(V
O
< 0 or V
O
> V
DD
) .................................................................................................. ±20 mA
Maximum output current sunk by any Output pin....................................................................................................25 mA
Maximum output current sourced by any Output pin .............................................................................................25 mA
Maximum current out of V
SS
pin ...........................................................................................................................100 mA
Maximum current into V
DD
pin ..............................................................................................................................100 mA
Maximum current into P
X
A, P
X
W & P
X
B pins ...................................................................................................... ±2.5 mA
Storage temperature ...............................................................................................................................-65°C to +150°C
Ambient temperature with power applied................................................................................................-40°C to +125°C
Soldering temperature of leads (10 seconds) ....................................................................................................... +300°C
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