Z86318 Ver la hoja de datos (PDF) - Zilog

Número de pieza

componentes Descripción

Fabricante

Z86318

Z8® MCU 8-BIT MICROCONTROLLER

Zilog 

Z86318

Z8® MCU 8-Bit Microcontroller

PIN FUNCTIONS

XTAL1, XTAL2. Crystal in, crystal out (time-based input Port 0 (P02-P00). Port 0 is a 3-bit, I/O programmable, bi-

1 and output, respectively). These pins connect a parallel- directional, CMOS-compatible I/O port. These three I/O

resonant crystal, LC, or an external single-phase clock (4 lines can be configured under software control to be input

MHz Max.) to the on-chip clock oscillator and buffer. Note: or output (see Figure 5). When Port 0 is configured as an

XTAL1 has a pull-down resistor.

input port, all lines have the capability to be globally con-

figured (ROM mask option) for a 100K pull-down or pull-up

resistor. The pull-up/pull-down resistor can be disabled as

well. (No current is drawn if disabled.) Graphs showing

current versus pin voltage are shown in Figures 6 and 7.

/OEN

Out

In

Pull-Up

Enable

Pull-Down

Enable

Pad

Figure 5. Port 0 Configuration

PRELIMINARY

9

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