參數(shù)資料
型號: Z86108
廠商: ZiLOG, Inc.
英文描述: 8 Bit CMOS Low Cost MCU(8位CMOS低成本微控制器(帶2K ROM))
中文描述: 8位CMOS低成本微控制器(8位的CMOS低成本微控制器(帶2K光盤))
文件頁數(shù): 6/28頁
文件大小: 394K
代理商: Z86108
Z86108
CMOS 8-Bit Low-Cost 2K-ROM Microcontrollers
ZiLOG
6
P R E L I M I N A R Y
DS001800-Z8X0898
PIN DESCRIPTION
(Continued)
Comparator Inputs.
Two analog comparators are added to
Port 3 inputs for interface flexibility. Typical applications
for these on-board comparators are: Zero crossing detec-
tion, A/D conversion, voltage scaling, and threshold detec-
tion.
The dual comparator (common inverting terminal) features
a single power supply that discontinues power in STOP
Mode. The common voltage range is 0–4V when the V
CC
is 5.0V. Before the comparator outputs are valid, two NOP
delays are required after enabling the analog comparators.
Interrupts are generated on either edge of Comparator 2’s
output, or on the falling edge of Comparator 1’s output. The
comparator output may be used for interrupt generation,
Port 3 data inputs, or T
IN
through P31. Alternately, the com-
parators may be disabled, freeing the reference input (P33)
for use as IRQ1 and/or P33 input.
Figure 6. Port 3 Configuration
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