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HD74AC датащи(PDF) 28 Page - Hitachi Semiconductor

номер детали HD74AC
подробное описание детали  HD74AC Series Common Information
PDF  52 Pages
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производитель  HITACHI [Hitachi Semiconductor]
домашняя страница  http://www.renesas.com/eng
Logo HITACHI - Hitachi Semiconductor

HD74AC датащи(HTML) 28 Page - Hitachi Semiconductor

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Definition of Specifications
27
OUTPUT
CONTROL
DATA
OUT
Vmi
Vmo
10% VCC
Gnd
tLZ
tZL
Vmi = 50% V
CC for HD74AC devices; 1.5 V for HD74ACT devices
Vmo = 50% V
CC for HD74AC/HD74ACT devices
Figure 6 3-State Output Low Enable and Disable Times
3.6 Electrostatic Discharge
Precautions should be taken to prevent damage to devices by electrostatic discharge. Static charge tends to
accumulate on insulated surfaces such as synthetic fabrics or carpeting, plastic sheets, trays, foam, tubes or
bags, and on ungrounded electrical tools or appliances. The problem is much worse in a dry atmosphere.
In general, it is recommended that individuals take the precaution of touching a known ground before
handling devices. More often, handling equipment that is not properly grounded, causes damage to parts.
Ensure that all plastic parts of the tester, that are near the device, are conductive and connected to ground.
DATA
IN
CONTROL
INPUT
MR
OR
CLEAR
Vmi
Vmi
Vmi
tsu
tsu
th
trec
Vmi = 50% V
CC for HD74AC devices; 1.5 V for HD74ACT devices
Vmo = 50% V
CC for HD74AC/HD74ACT devices
Figure 7 Setup Time, Hold Time and Recovery Time



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