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LM8327 Datasheet(PDF) 5 Page - Texas Instruments |
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LM8327 Datasheet(HTML) 5 Page - Texas Instruments |
5 / 65 page LM8327 www.ti.com SNLS329A – SEPTEMBER 2011 – REVISED MAY 2013 Typical Application Setup Figure 2. LM8327 in a Typical Setup with Standard Handset Keypad FEATURES The following features are supported with the application example shown above: Hardware Hardware • 4 x 8 keys and 8 Special Function (SF) keys for 40 keys. • ACCESS.bus interface for communication with a host device. – Communication speeds supported are: 100 kHz standard mode and 400 kHz fast mode of operation. • Interrupt signal (IRQN) to indicate any keypad or hardware interrupt events to the host. • Sophisticated PWM function block with 3 independent channels to control color LED. • External clock input for accurate PWM clock (not used). • Four host-programmable dedicated general-purpose output pins (GPIOs:KPY4:7) supporting I/O-expansion capabilities for host device. • Six host-programmable dedicated direct key connection input pins (DIRECT 16:19, 23, 25) with wake-up supporting I/O-expansion capabilities for host device. Communication Layer • Versatile register-based command integration supported from on-chip command interpreter. • Keypad event storage. • Individual PWM script file storage and execution control for 3 PWM channels. Copyright © 2011–2013, Texas Instruments Incorporated Submit Documentation Feedback 5 Product Folder Links: LM8327 |
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