Datasheet Texas Instruments LM8323JGR8AXMX/NOPB — 数据表

LM8323
www.ti.com SNLS273A – JULY 2010 – REVISED MARCH 2013 LM8323 Mobile I/O Companion Supporting Keyscan, I/O Expansion, PWM, and
ACCESS.bus Host Interface
Check for Samples: LM8323 FEATURES 1 2 Key Features
– Supports Keypad Matrices of up to 8 × 12
Keys Plus 8 Special-function (SF) Keys for
a Total of 104 Keys. SF Keys Pull Keypad
Scan Inputs Directly to Ground, Rather than
Connecting to a Keypad Scan Output.
– Supports I2C-compatible ACCESS.bus
Interface in Slave Mode up to 400 kHz
(Fast-mode).
– Three Host-programmable PWM Outputs
Useful for Smooth LED Brightness
Modulation.
– Supports General-purpose I/O Expansion
on Pins Not Otherwise Used for Keypad or
Rotary Encoder Interface.
– Key-scan Event Storage in a FIFO Buffer for
up to 15 Events.
– Key Events, Errors, and Dedicated
Hardware Interrupts Request Host Service
by Asserting the IRQ Output. …