參數(shù)資料
型號: Z86C0208PEC
廠商: ZILOG INC
元件分類: 微控制器/微處理器
英文描述: LOW-COST, 512-BYTE ROM MICROCONTROLLERS
中文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP18
封裝: PLASTIC, DIP-18
文件頁數(shù): 16/36頁
文件大小: 898K
代理商: Z86C0208PEC
Z86C02/E02/L02
Low-Cost, 512-Byte ROM Microcontrollers
1-16
P R E L I M I N A R Y
DS96DZ80301 (11/96)
PIN FUNCTIONS
(Continued)
XTAL1, XTAL2
Crystal In, Crystal Out (time-based input
and output, respectively). These pins connect a parallel-
resonant crystal, LC, RC, or an external single-phase
clock (8 MHz max) to the on-chip clock oscillator and buff-
er.
Port 0, P02-P00.
Port 0 is a 3-bit bi-directional, Schmitt-
triggered CMOS compatible I/O port. These three I/O lines
can be globally configured under software control to be in-
puts or outputs (Figure 8).
Auto Latch.
The Auto Latch puts valid CMOS levels on all
CMOS inputs (except P33, P32, P31) that are not external-
ly driven. A valid CMOS level, rather than a floating node,
reduces excessive supply current flow in the input buffer.
On Power-up and Reset, the Auto Latch will set the ports
to an undetermined state of 0 or 1. Default condition is
Auto Latches enabled.
Figure 8. Port 0 Configuration
Open
Out
In
1.5 2.3 Hysteresis
PAD
Port 0 (I/O)
Z8
Auto Latch Option
R 500 k
VCC @ 5.0V
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