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Z86C9620VSC 数据表(PDF) 18 Page - Zilog, Inc.

部件名 Z86C9620VSC
功能描述  CMOS Z8 MICROCONTROLLER
PDF  46 Pages
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制造商  ZILOG [Zilog, Inc.]
网页  http://www.zilog.com
标志 ZILOG - Zilog, Inc.

Z86C9620VSC 数据表(HTML) 18 Page - Zilog, Inc.

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Z86C61/62/96
Z8® MICROCONTROLLER
PIN FUNCTIONS (Continued)
Port 4 (P47-P40). Port 4 is an 8-bit, bit programmable,
bidirectional, CMOS compatible port. Each of these eight
I/O lines can be independently programmed as an input or
output or globally as an open-drain output. Port 4 is always
available for I/O operation (Figure 15). Port address (F)02.
Port 5 (P57-P50). Same as Port 4. Port address (F)04.
Port 6 (P63-P60). Same as Port 4. (Note: this is a 4-bit port,
bits D3-D0.) Port address (F)07.
Auto Latch. The Auto Latch puts valid CMOS levels on all
CMOS inputs that are not externally driven. This reduces
excessive supply current flow in the input buffer when it is
not being driven by any source.
OEN
Out
In
PAD
Port 4 (I/O)
MCU
TTL Level Shifter
Auto Latch
R
≈ 500 KΩ
Open-Drain
Figure 15. Port 4 Configuration



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