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MCP464X bảng dữ liệu(PDF) 1 Page - Microchip Technology

tên linh kiện MCP464X
Giải thích chi tiết về linh kiện  7/8-Bit Single/Dual I2C Digital POT with Nonvolatile Memory
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 2008-2013 Microchip Technology Inc.
DS22107B-page 1
MCP454X/456X/464X/466X
Features
• Single or Dual Resistor Network Options
• Potentiometer or Rheostat Configuration Options
• Resistor Network Resolution
- 7-bit: 128 Resistors (129 Steps)
- 8-bit: 256 Resistors (257 Steps)
•RAB Resistances Options of:
-5 k
-10 k
-50 k
-100 k
• Zero-Scale to Full-Scale Wiper Operation
• Low Wiper Resistance: 75
 (typical)
•Low Tempco:
- Absolute (Rheostat): 50 ppm typical
(0°C to 70°C)
- Ratiometric (Potentiometer): 15 ppm typical
• Nonvolatile Memory
- Automatic Recall of Saved Wiper Setting
- WiperLock™ Technology
- 10 General Purpose Memory Locations
•I2C Serial Interface
- 100 kHz, 400 kHz and 3.4 MHz Support
• Serial Protocol Allows:
- High-Speed Read/Write to Wiper
- Read/Write to EEPROM
- Write Protect to be Enabled/Disabled
- WiperLock to be Enabled/Disabled
• Resistor Network Terminal Disconnect Feature
via the Terminal Control (TCON) Register
• Write Protect Feature:
- Hardware Write Protect (WP) Control Pin
- Software Write Protect (WP) Configuration Bit
• Brown-out Reset Protection (1.5V typical)
• 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 I2C 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)
1
2
3
45
6
7
8
P0W
P0B
P0A
VSS
VDD
MCP45X1
Single Potentiometer
MSOP
HVC / A0
SDA
SCL
1
2
3
45
6
7
8
P0B
A1
P0W
VDD
MSOP
1
2
3
4
11
12
13
14
A2
A1
WP
VDD
MCP46X1 Dual Potentiometers
TSSOP
5
6
7
8
9
10
P0W
P0B
P0A
P1A
P1W
P1B
VSS
HVC / A0
SDA
SCL
VSS
HVC/A0
SDA
SCL
QFN-16 4x4 (ML) *
1
2
3
4
7
8
9
10
A1
VDD
MCP46X2 Dual Rheostat
MSOP
5
6
P0B
P0W
P1W
P1B
VSS
HVC/A0
SDA
SCL
MCP45X2
Single Rheostat
DFN 3x3 (MF) *
DFN 3x3 (MF) *
SDA
SCL
VSS
A1
P0B
1
2
3
4
8
7
6
5 P0W
VDD
HVC / A0
* Includes Exposed Thermal Pad (EP); see Table 3-1.
EP
9
DFN 3x3 (MF) *
SDA
SCL
VSS
P0B
P0W
1
2
3
4
8
7
6
5 P0A
VDD
HVC / A0
EP
9
2
VSS
VSS
SCL
WP
NC
P0B
P0W
SDA
EP
16
1
15 14 13
3
4
12
11
10
9
56 7 8
17
SDA
SCL
VSS
A1
P0B
1
2
3
4
10
9
8
7 P0W
VDD
HVC / A0
EP
11
P1B 5
6 P1W
7/8-Bit Single/Dual I2C Digital POT with
Nonvolatile Memory


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