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LM8333 Datasheet(PDF) 5 Page - Texas Instruments |
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LM8333 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 26 page LM8333 www.ti.com SNLS246J – SEPTEMBER 2006 – REVISED MAY 2010 Typical Application Figure 3. Typical Keypad Configuration FEATURES The following features are supported: • 8 x 8 Standard Keys. • 8 Special Function Keys (SF keys) with Wake-Up Capability by Forcing a WAKE_INx Pin to Ground. Pressing a SF Key Overrides any other Key in the Same Row. • A Total of 72 Keys can be Scanned. • ACCESS.Bus (I2C-Compatible) Interface for Communication with the Host. • The Watchdog Timer is Mandatory, so WD_OUT Must be Connected to RESET. I/O EXPANSION OPTIONS • One Host-Programmable PWM Output which also may be Used as a General-Purpose Output. • Four Host-Programmable General-Purpose I/O Pins, GEN_IO_0, GEN_IO_1, GEN_IO_2, and GEN_IO_3. GEN_IO_0 and GEN_IO_1 can also be Configured for “Slow” Interrupts, in which any Transition will Trigger a Hardware Interrupt Event to the Host. Copyright © 2006–2010, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM8333 |
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