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TCA1116

低電壓 16 位 I2C 和 SMBus 低功耗 I/O 擴展器，TCA1116; ? I2C to Parallel Port Expander\n? Supports partial power down i.e. SDA and SCL are 5V tolerant (2C operation\n? Open-Drain Active-Low Interrupt Output\n? Active-Low Reset Input\n? I/O Ports are 5V tolerant\n? Low Standby-Current Consumption of 3?μA?Max\n? 400-kHz Fast I2C Bus support\n? Polarity Inversion Register\n? Configurable with up to four different I2C addresses using hardware pins\n? Directly drive LEDs using high current push pull outputs\n? Latch-Up Performance Exceeds 100?mA Per JESD?78, Class?II\n? ESD Protection Exceeds JESD?22\n? 2000-V Human-Body Model (A114-A)\n? 1000-V Charged-Device Model (C101);

This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 1.65-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)]. Two hardware pins (A0 and A1) are used to program and vary the fixed I2C address and allow up to four devices to share the same I2C bus. The TCA1116 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power-on, the I/Os are configured as inputs. The system master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or output register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.\n The system master can reset the TCA1116 in the event of a time-out or other improper operation by asserting a low in the RESET input. The power-on reset puts the registers in their default state and initializes the I2C/SMBus state machine. Asserting RESET causes the same reset/initialization to occur without depowering the part. \n The TCA1116 open-drain interrupt (INT) output is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input state has changed.\n INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C bus. Thus, the TCA1116 can remain a simple slave device.\n The device outputs (latched) have high-current drive capability for directly driving LEDs. The device has low current consumption.\n \n

TCA1116

LOW VOLTAGE 16-BIT I2C I/O EXPANDER WITH INTERRUPT AND RESET

TCA1116PWR

LOW VOLTAGE 16-BIT I2C I/O EXPANDER WITH INTERRUPT AND RESET

TCA1116RTWR

LOW VOLTAGE 16-BIT I2C I/O EXPANDER WITH INTERRUPT AND RESET

TCA1116PWR

Package：24-TSSOP（0.173"，4.40mm 寬）；包裝：管件 類別：集成電路（IC） I/O 擴展器 描述：IC I/O EXPANDR I2C 16BIT 24TSSOP

TCA1116RTWR

Package：24-WFQFN 裸露焊盤；包裝：管件 類別：集成電路（IC） I/O 擴展器 描述：IC I/O EXPANDER I2C 16BIT 24WQFN