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MAX11041
Wired Remote Controller
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Status
Active: In Production.
Description
The MAX11041 wired remote controller converts up to 30 different pushbuttons into an I²C register. Together with low-cost pushbutton switches and 1% resistors, the MAX11041 is a total solution over a single-wire interface. A wired remote controller easily piggybacks to a standard 3.5mm headphone jack using a fourth contact or one of the audio signals.
To conserve battery life, the MAX11041 consumes only 5µA (typ) while reading keypresses in real time without microprocessor (µP) polling. The device sends the debounced keypress along with key duration to the application processor over the I²C interface. An 8-word FIFO buffer records up to four keypress events to allow plenty of time for the application processor to respond to the MAX11041.
The MAX11041 includes ±15kV ESD protection devices on the FORCE and SENSE inputs to ensure IEC 61000-4-2 compliance without any external ESD devices.
The MAX11041 is available in a 12-pin TQFN package. The device is specified over the extended temperature range (-40°C to +85°C).
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Data Sheet
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Key Features
- Detect Up to 30 Different Keys and Jack Insertion/Removal
- Works with Either 32Ω or 16Ω Headphones
- Adds Remote-Control Functionality to Devices Using a Simple Resistor and Switch Array
- Low-Power Operation Consuming a Supply Current of Only 5µA (typ)
- Works with Standard 2.5mm or 3.5mm 4-Pin Headphone Jacks
- Supports Hold Function to Lockout Keys
- 100kHz/400kHz I²C Interface
- Single 1.6V to 3.6V Supply Voltage Range
- ±15kV ESD Protection (IEC 61000-4-2)
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Applications/Uses
- Digital Still Cameras
- Keyboard Encoder for Slider, Flip, and Other Cell Phones
- MP3, CD, DVD Players
- Multimedia Controls for Multimedia-Enabled Cell Phones
- Multimedia Desktop Speakers
- PDA Accessory Keyboards
- PDAs
- Portable Game Consoles
- Portable Media Players
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Key Specifications:
| Keyswitch Controllers |
| Part Number |
Interface |
Keys |
I2C I/F Volt. |
ISUPPLY
(µA) |
ISHUTDN
(µA) |
Interr. Out |
Key Scan I2C Slave IDs |
VSUPPLY
(V) |
Package/Pins |
Budgetary Price |
| max |
typ |
typ |
See Notes |
| MAX11041 NEW! |
I2C 100kbit/400kbit |
6 |
1.6 to 3.6 |
20 |
1 |
Yes |
4 |
1.6 to 3.6 |
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$1.58 @1k |
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See All Keyswitch Controllers (5)
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Pricing Notes:
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
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Diagram
 Functional Diagram
Product Guides
Reliability Reports
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Software/Models
Ordering Information
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Part Number
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Free
Sample |
Buy |
Status
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Package:
TYPE PINS FOOTPRINT
DRAWING CODE/VAR *
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Temp |
RoHS/Lead-Free?
Materials Analysis
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| MAX11041EBC-T
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Active |
UCSP;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX11041ETC
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Active |
TQFN;12 pin;16.8 mm²
Outline Drawing:21-0139 (PDF)
Land Pattern: 90-0068 (PDF)
Use pkgcode/variation: T1244-4*
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-40°C to +85°C
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RoHS/Lead-Free: No
Materials Analysis |
| MAX11041ETC+
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Active |
TQFN;12 pin;16.8 mm²
Outline Drawing:21-0139 (PDF)
Land Pattern: 90-0068 (PDF)
Use pkgcode/variation: T1244+4*
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-40°C to +85°C
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RoHS/Lead-Free: Lead Free
Materials Analysis |
| MAX11041ETC+T
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Active |
QFN;
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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| MAX11041ETC-T
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Active |
QFN;12 pin
Land Pattern: Not Available
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-40°C to +85°C
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See data sheet
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Notes:
- Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales.
- Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day.
- Part number suffixes: T or T&R = tape and reel; + = RoHS/lead-free; # = RoHS/lead-exempt; -D = drypack; -U/+U on DS parts = cut tape. More: See Full Data Sheet or Maxim Product Naming Conventions.
- * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.
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Document Ref.: 19-3984
Rev 3;
2010-08-09
This page last modified: 2010-11-19
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