LC709004A: I/O Expander for Microcontroller
The LC709004A is a peripheral IC dedicated for expanding the capability of the microcontroller (MCU) I/O ports. It interfaces with the microcontroller through synchronous serial communication. Communication with the extended I/O ports is accomplished through 16-bit parallel I/O. The extended port features include the capabilities to specify the I/O direction on a bit basis, to specify the output type (CMOS or N-channel open drain), and to specify the I/O voltage level on a port basis according to the power level of the peripheral equipment. These features make allow the LC709004A to be used in a wide variety of applications.
Features- 4-/5-wire synchronous serial transmission and reception, and 16-bit parallel I/O
- Wide operating voltage range (2.0V to 6.0V)
- Multifunction I/O ports :I/O direction specification: Bit unitsCMOS or Nch-OD output type specification: Bit unitsOutput voltage adjustment: Port (8 bits) units
- Output current: 12mA max. (capable of driving a green LED directly)
- Data transmission and reception :Can control reception of input data and transmission of output data in parallel.
- Cascaded configuration :Ports can be expanded in units of 16 bits x n (n is the number of LSI chips).
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Data Sheets (1)
Package Drawings (1)
Order Information
| Product | Status | Compliance | Package | MSL* | Container | Budgetary Price/Unit |
|---|
| LC709004AMJ-AH | Active | Pb-free
Halide free | SOIC-24 W / MFP-24SJ | 751DB | 3 | Tape and Reel | 2000 | $1.4226 |
Specifications
| Product | I/O | Cascadable | VCC Min (V) | VCC Max (V) | Interrupt Output | I/O Pullups | LED Blink/PWM | IO Min (mA) |
|---|
| LC709004AMJ-AH | 16 | | 2 | 6 | No | No | No | 12 |
