LM8333 Datasheet and Specifications PDF

The LM8333 is a Keypad Controller.

Key Specifications

Mount TypeSurface Mount
Pins32
Operating Voltage2.9 V
Max Frequency400 kHz
Height800 µm
Length6 mm
Width6 mm
Max Operating Temp85 °C
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Part NumberLM8333 Datasheet
ManufacturerNational Semiconductor
Overview The LM8333 is a general-purpose controller for matrixaddressed keypads which provides an ACCESS.bus (I2Ccompatible) interface to a host microcontroller. It offloads the burden of keyboard scanning fro. n 8 x 8 standard keys n 8 special function keys (SF keys) providing a total of 72 keys for the maximum keyboard matrix n ACCESS.bus (I2C-compatible) communication interface to the host n Four general purpose host programmable I/O pins with two optional (slow) external Interrupts n 16 byte FIFO buffe.
Part NumberLM8333 Datasheet
DescriptionMobile I/O Companion Supporting Key-Scan
ManufacturerTexas Instruments
Overview The LM8333 Mobile I/O Companion offloads the burden of keyboard scanning from the host, while providing extremely low power consumption in both operational and standby modes. It supports keypad matric. 1
*2 8 × 8 Standard Keys
* 8 Special Function Keys (SF Keys) Providing a Total of 72 Keys for the Maximum Keyboard Matrix
* ACCESS.Bus (I2C-compatible) Communication Interface to the Host
* Four General Purpose Host Programmable I/O Pins with Two Optional (Slow) External Interrupts
* 15-byte FIFO Bu.

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