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CAP1208-1-A4-TR bảng dữ liệu(PDF) 1 Page - Microchip Technology |
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CAP1208-1-A4-TR bảng dữ liệu(HTML) 1 Page - Microchip Technology |
1 / 67 page 2014 Microchip Technology Inc. DS00001570B-page 1 Datasheet PRODUCT FEATURES CAP1208 8-Channel Capacitive Touch Sensor General Description The CAP1208 which incorporates RightTouch® technology, is a multiple channel capacitive touch sensor. It contains eight (8) individual capacitive touch sensor inputs with programmable sensitivity for use in touch sensor applications. Each sensor input is calibrated to compensate for system parasitic capacitance and automatically recalibrated to compensate for gradual environmental changes. The CAP1208 includes Multiple Pattern Touch recognition that allows the user to select a specific set of buttons to be touched simultaneously. If this pattern is detected, a status bit is set and an interrupt is generated. The CAP1208 has Active and Standby states, each with its own sensor in put conf ig ura t io n control s . Po wer consumption in the Standby state is dependent on the number of sensor inputs enabled as well as averaging, sampling time, and cycle time. Deep Sleep is the lowest power state available, drawing 5µA (typical) of current. In this state, no sensor inputs are active, and communications will wake the device. Applications Desktop and Notebook PCs LCD Monitors Consumer Electronics Appliances Features Eight (8) Capacitive Touch Sensor Inputs — Programmable sensitivity — Automatic recalibration — Calibrates for parasitic capacitance — Individual thresholds for each button Multiple Button Pattern Detection Power Button Support Press and Hold Feature for Volume-like Applications 3.3V or 5V Supply Analog Filtering for System Noise Sources RF Detection and Avoidance Filters Digital EMI Blocker 8kV ESD Rating on All Pins (HBM) Low Power Operation — 5µA quiescent current in Deep Sleep — 50µA quiescent current in Standby (1 sensor input monitored) — Samples one or more channels in Standby SMBus / I2C Compliant Communication Interface Available in a 16-pin 3mm x 3mm QFN RoHS compliant package Block Diagram SMBus Protocol SMCLK SMDATA VDD GND ALERT# Capacitive Touch Sensing Algorithm CS1 CS2 CS3 CS4 CS5 CS6 CS7 CS8 |
Số phần tương tự - CAP1208-1-A4-TR |
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Mô tả tương tự - CAP1208-1-A4-TR |
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