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ISG4100x

Imagis Semiconductor
Part Number ISG4100x
Manufacturer Imagis Semiconductor
Description Mobile Key Scan I/O companion
Published Oct 5, 2012
Detailed Description Imagis Co., Ltd. ISG4100x Preliminary Datasheet 1. Overview 1.1. Description The ISG4100x Mobile Key Scan I/O companio...
Datasheet PDF File ISG4100x PDF File

ISG4100x
ISG4100x

Overview
Imagis Co.
, Ltd.
ISG4100x Preliminary Datasheet 1.
Overview 1.
1.
Description The ISG4100x Mobile Key Scan I/O companion is a dedicated device to unburden a host processor from scanning a matrix-addressed keypad.
It communicates with the host through an I2Ccompatible or SPI-compatible access bus interface.
An interrupt output is available for signaling key-press events.
In the I2C communication, frequencies up to 400KHz bus speed are supported.
In the SPI communication, frequencies up to 10MHz bus speed are supported.
ISG4100x supports a predefined set of commands.
These commands enable a host device to keep control over all functions.
1.
1.
1.
Block Diagram of ISG4100I www.
DataSheet.
net/ Figure 1 Block Diagram of ISG4100I CONFIDENTIAL - 1/7 - 2009-02-05 Datasheet pdf - http://www.
DataSheet4U.
co.
kr/ Imagis Co.
, Ltd.
ISG4100x Preliminary Datasheet 1.
1.
2.
Block Diagram of ISG4100S Figure 2 Block Diagram of ISG4100S www.
DataSheet.
net/ CONFIDENTIAL - 2/7 - 2009-02-05 Datasheet pdf - http://www.
DataSheet4U.
co.
kr/ Imagis Co.
, Ltd.
ISG4100x Preliminary Datasheet 1.
2.
Features 1.
2.
1.
z z z z z z z z z z z z Features Supports keypad matrices of up to 8 x 8 keys (Max 64 keys) Supports multiple-key detection Supports long key-press detection Key-Scan Event storage in a FIFO buffer for up to 16 events Hardware Interrupt at the FIFO Level Auto-Sleep and Auto-WakeUp to minimize current consumption 8000V ESD protected I/O Supports I2C-compatible access bus interface in slave mode up to 400kbps (Fast mode).
(ISG4100I only) Supports SPI-compatible access bus interface in slave mode up to 10MHz.
(ISG4100S only) Wake-up from Halt mode an any matrix key-scan event or any activity on the I2Ccompatible or SPI-compatible access bus interface Small Package : 3.
0mm x 3.
0mm, 25-FBGA Supply Voltage : 2.
4V ~ 2.
7V, (Typical 2.
5V) www.
DataSheet.
net/ 1.
3.
Application Targets z z z z z Mobile Phone Personal Digital Assistants (PDAs) Smart handheld devices Personal Multimedia Pla...


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