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Renesas Electronics Components Datasheet

HD74ALVCH16827 Datasheet

20-bit Buffers / Drivers

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HD74ALVCH16827
20-bit Buffers / Drivers with 3-state Outputs
REJ03D0033-0400Z
(Previous ADE-205-140B(Z))
Rev.4.00
Oct.02.2003
Description
The HD74ALVCH16827 is composed of two 10-bit sections with separated output enable signals. For
either 10-bit buffer section, the two output enable (1OE1 and 1OE2 or 2OE1 and 2OE2) inputs must both
be low for the corresponding Y outputs to be active. If either output enable input is high, the outputs of that
10-bit buffer section are in the high impedance state. Active bus hold circuitry is provided to hold unused
or floating data inputs at a valid logic level.
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 ±24 mA (@VCC = 3.0 V)
Bus hold on data inputs eliminates the need for external pullup / pulldown resistors
Function Table
Inputs
OE1
L
L
H
X
H : High level
H : High level
X : Immaterial
Z : High impedance
OE2
L
L
X
H
A
L
H
X
X
Output Y
L
H
Z
Z
Rev.4.00, Oct.02.2003, page 1 of 8


Renesas Electronics Components Datasheet

HD74ALVCH16827 Datasheet

20-bit Buffers / Drivers

No Preview Available !

HD74ALVCH16827
Pin Arrangement
1OE1 1
1Y1 2
1Y2 3
GND 4
1Y3 5
1Y4 6
VCC 7
1Y5 8
1Y6 9
1Y7 10
GND 11
1Y8 12
1Y9 13
1Y10 14
2Y1 15
2Y2 16
2Y3 17
GND 18
2Y4 19
2Y5 20
2Y6 21
VCC 22
2Y7 23
2Y8 24
GND 25
2Y9 26
2Y10 27
2OE1 28
(Top view)
56 1OE2
55 1A1
54 1A2
53 GND
52 1A3
51 1A4
50 VCC
49 1A5
48 1A6
47 1A7
46 GND
45 1A8
44 1A9
43 1A10
42 2A1
41 2A2
40 2A3
39 GND
38 2A4
37 2A5
36 2A6
35 VCC
34 2A7
33 2A8
32 GND
31 2A9
30 2A10
29 2OE2
Rev.4.00, Oct.02.2003, page 2 of 8


Part Number HD74ALVCH16827
Description 20-bit Buffers / Drivers
Maker Renesas
Total Page 9 Pages
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