TCA8418 I2C 控制键盘扫描 IC

	TCA8418
Operating Temperature Range(°C)	-40 to 85
Rating	Catalog
Pin/Package	24QFN
Max Frequency(kHz)	1000
Function	Keypad Scan
I2C Address	0110100
Vcc range(V)	1.65 to 3.6
Enable Pin	No
Open–Drain I/O Type	No
5V Tolerant I/O	No
Push–Pull I/O Type	Yes

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

器件	状态	温度	价格	封装 \| 引脚	封装数量 \| 封装载体	丝印标记
TCA8418RTWR	ACTIVE	-40 to 85	1.20 \| 1ku	QFN (RTW) \| 24	3000 \| LARGE T&R

器件	环保计划*	铅/焊球涂层	MSL 等级/回流焊峰	环保信息与无铅 (Pb-free)	DPPM / MTBF / FIT 率
TCA8418RTWR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	TCA8418RTWR	TCA8418RTWR