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TCA8418,pdf(Controlled Keypad
消耗积分:5 |
格式:rar |
大小:846 |
2010-08-08
贾永世
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特性
- Operating Power-Supply Voltage Range of 1.65 V to 3.6 V
- Supports QWERTY Keypad Operation Plus GPIO Expansion
- 18 GPIOs Can Be Configured into Eight Inputs and Ten Outputs to
Support an 8 × 10 Keypad Array (80 Buttons) - ESD Protection Exceeds JESD 22 on all 18 GPIO Pins and non GPIO pins
- 2000-V Human Body Model (A114-A)
- 1000-V Charged Device Model (C101)
- Low Standby (Idle) Current Consumption: 3 µA
- Polling Current Drain 70 µA for One Key Pressed
- 10 Byte FIFO to Store 10 Key Presses and Releases
- Supports 1-MHz Fast Mode Plus I2C Bus
- Open-Drain Active-Low Interrupt Output, Asserted when Key is
Pressed and Key is Released - Minimum Debounce Time of 50 µs
- Schmitt-Trigger Action Allows Slow Input Transition and
Better Switching Noise Immunity at the SCL and SDA Inputs:
Typical Vhys at 1.8 V is 0.18 V - Latch-Up Performance Exceeds 200 mA Per JESD 78, Class II
- Very Small Packages
- WCSP (YFP): 2 mm × 2 mm; 0.4 mm pitch
- QFN (RTW): 4 mm × 4 mm; 0.5 mm pitch
- APPLICATIONS
- Smart Phones
- PDAs
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