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HD74ALVCH162835 PDF даташит

Спецификация HD74ALVCH162835 изготовлена ​​​​«Hitachi Semiconductor» и имеет функцию, называемую «18-bit Universal Bus Drivers with 3-state Outputs».

Детали детали

Номер произв HD74ALVCH162835
Описание 18-bit Universal Bus Drivers with 3-state Outputs
Производители Hitachi Semiconductor
логотип Hitachi Semiconductor логотип 

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HD74ALVCH162835 Даташит, Описание, Даташиты
HD74ALVCH162835
18-bit Universal Bus Drivers with 3-state Outputs
ADE-205-189B (Z)
3rd. Edition
December 1999
Description
Data flow from A to Y is controlled by the output enable (OE). The device operates in the transparent
mode when LE is high. The A data is latched if CLK is held at a high or low logic level. If LE is low, the
A bus data is stored in the latch flip flop on the low to high transition of CLK. When OE is high, the
outputs are in the high impedance state. Active bus hold circuitry is provided to hold unused or floating
data inputs at a valid logic level. All outputs, which are designed to sink up to 12 mA, include 26
resistors to reduce overshoot and undershoot.
Features
VCC = 2.3 V to 3.6 V
Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
High output current ±12 mA (@VCC = 3.0 V)
Bus hold on data inputs eliminates the need for external pullup / pulldown resistors
All outputs have equivalent 26 series resistors, so no external resistors are required.









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HD74ALVCH162835 Даташит, Описание, Даташиты
HD74ALVCH162835
Function Table
Inputs
Output Y
OE
LE
CLK
A
HXXXZ
L HXL L
L HXHH
LLLL
L L HH
L L H X Y0 *1
L L L X Y0 *2
H : High level
L : Low level
X : Immaterial
Z : High impedance
: Low to high transition
Notes: 1. Output level before the indicated steady state input conditions were established, provided that
CLK is high before LE goes low.
2. Output level before the indicated steady state input conditions were established.
2









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HD74ALVCH162835 Даташит, Описание, Даташиты
Pin Arrangement
HD74ALVCH162835
NC 1
NC 2
Y1 3
GND 4
Y2 5
Y3 6
VCC 7
Y4 8
Y5 9
Y6 10
GND 11
Y7 12
Y8 13
Y9 14
Y10 15
Y11 16
Y12 17
GND 18
Y13 19
Y14 20
Y15 21
VCC 22
Y16 23
Y17 24
GND 25
Y18 26
OE 27
LE 28
(Top view)
56 GND
55 NC
54 A1
53 GND
52 A2
51 A3
50 VCC
49 A4
48 A5
47 A6
46 GND
45 A7
44 A8
43 A9
42 A10
41 A11
40 A12
39 GND
38 A13
37 A14
36 A15
35 VCC
34 A16
33 A17
32 GND
31 A18
30 CLK
29 GND
3










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