參數(shù)資料
型號(hào): 286C6116FSC
廠商: ZiLOG, Inc.
英文描述: CMOS Z8 MICROCONTROLLER
中文描述: 單片機(jī)的CMOS Z8
文件頁(yè)數(shù): 18/46頁(yè)
文件大?。?/td> 388K
代理商: 286C6116FSC
18
Z86C61/62/96
Z8
M
ICROCONTROLLER
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 K
Open-Drain
Figure 15. Port 4 Configuration
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