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參數(shù)資料
| 型號： | MPR081QR2 |
| 廠商： | FREESCALE SEMICONDUCTOR INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | SPECIALTY MICROPROCESSOR CIRCUIT, QCC16 |
| 封裝： | 5 X 5 MM, 1 MM HEIGHT, ROHS COMPLIANT, QFN-16 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大小： | 324K |
| 代理商： | MPR081QR2 |
MPR081
Rev 0, 06/2007
Freescale Semiconductor
Technical Data
Freescale Semiconductor, Inc., 2007. All rights reserved.
Touch Pad Controller
The MPR081 is a user interface controller which manages a 16-position rotary
touch pad. The MPR081 uses an I2C interface to communicate with the host,
which configures the operation, and an interrupt to advise the host of status
changes.
The interrupt output, IRQ, indicates that rotary status has changed since the
MPR081 was last read. The maximum interrupt frequency can be limited to
sacrifice system response time in favor of power consumption for systems that
wake up out of sleep to respond to interrupts.
Features
1.8 V to 3.6 V operation
150 A average supply current (all touch pads being monitored)
1 A standby current
Supports a 16-position rotary interface
Proprietary false touch rejection technology
Ongoing pad analysis and detection not reset by EMI events
Rotary data changes are delivered from a FIFO for shortest access time
IRQ output advises when FIFO has data
System can set interrupt behavior as immediate after event, or program a
minimum time between successive interrupts
Current rotary position is always available on demand for polling-based
systems
Sounder drive provides audible feedback to simulate mechanical key clicks
Digital output (I2C with custom addressing)
16-pin QFN and TSSOP packages
-40°C to +85°C operating temperature range
Implementations
Control Panels
Switch Replacements
Rotary and Linear Sliders
Touch Pads
Typical Applications
Appliances
PC Peripherals
Access Controls
MP3 Players
Remote Controls
Mobile Phones
ORDERING INFORMATION
Device Name
Temperature
Range
Case
Number
Rotary
Slider
MPR081Q
-40
°C to +85°C
1679
(16-Lead QFN)
16-Positions
MPR081EJ
948F
(16-Lead TSSOP)
MPR081
Touch Pad Controller
16-LEAD TSSOP
CASE 948F
Top View
Figure 1. Pin Connections
Bottom View
RN
RNE
RE
RSE
RS
RSW
RW
RNW
VDD
VSS
SCL
SDA
AD0
SOUNDER
RST
IRQ
MPR081Q
16-LEAD QFN
CASE 1679
RN
RNE
RE
RSE
RS
RSW
RW
RNW
VDD
VSS
SCL
SDA
AD0
SOUNDER
RST
IRQ
MPR081EJ
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