Datasheet Texas Instruments LM8328 — 数据表

LM8328
www.ti.com SNLS328A – AUGUST 2011 – REVISED MARCH 2013 LM8328 Mobile I/O Companion Supporting Keyscan, I/O Expansion, PWM, and
ACCESS.bus Host Interface
Check for Samples: LM8328 FEATURES 1 2 KEY FEATURES
– Internal RC Oscillator, No External Clock
Required
– Internal PWM Clock Generation, No
External Clock Required
– External Reset for System Control
– Programmable I2C-compatible ACCESS.bus
Address (Default 0x88)
– Support for Keypad Matrices of up to of 8 x
12 Keys, Plus 8 Special Function (SF) Keys,
for a Full 104 Key Support
– I2C-compatible ACCESS.bus Slave Interface
at 100 kHz (Standard-Mode) and 400 kHz
(Fast-Mode)
– Three Host-programmable PWM Outputs
for Smooth LED Brightness Modulation
– Supports General-purpose I/O Expansion
on Pins Not Otherwise Used for Keypad or
PWM Output
– 15 byte Key Event Buffer …