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Спецификация HD74ALVCH16374 изготовлена «Hitachi Semiconductor» и имеет функцию, называемую «16-bit D-type Flip Flops with 3-state Outputs». |
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Детали детали
Номер произв | HD74ALVCH16374 |
Описание | 16-bit D-type Flip Flops with 3-state Outputs |
Производители | Hitachi Semiconductor |
логотип |
10 Pages
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HD74ALVCH16374
16-bit D-type Flip Flops with 3-state Outputs
ADE-205-123B (Z)
3rd. Edition
December 1999
Description
The HD74ALVCH16374 has sixteen edge trigger D type flip flops with three state outputs in a 48 pin
package. Data at the D inputs meeting set up requirements, are transferred to the Q outputs on positive
going transitions of the clock input. When the latch enable goes low, data at the D inputs will be retained at
the outputs until latch enable returns high again. When a high logic level is applied to the output control
input, all outputs go to a high impedance state, regardless of what signals are present at the other inputs and
the state of the storage elements. Low voltage and high speed operation is suitable at the battery drive
product (note type personal computer) and low power consumption extends the life of a battery for long
time operation.
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.
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HD74ALVCH16374
Function Table
Inputs
OE CK
D
Output Q
HX
XZ
L↑ L L
L↑
HH
L
H or L
X
Q0
H : High level
L : Low level
X : Immaterial
Z : High impedance
↑ : Low to high transition
Q0 : Level of Q before the indicated steady input conditions were established.
2
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Pin Arrangement
HD74ALVCH16374
1OE 1
1Q1 2
1Q2 3
GND 4
1Q3 5
1Q4 6
VCC 7
1Q5 8
1Q6 9
GND 10
1Q7 11
1Q8 12
2Q1 13
2Q2 14
GND 15
2Q3 16
2Q4 17
VCC 18
2Q5 19
2Q6 20
GND 21
2Q7 22
2Q8 23
2OE 24
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
G CK
QD
(Top view)
48 1CK
47 1D1
46 1D2
45 GND
44 1D3
43 1D4
42 VCC
41 1D5
40 1D6
39 GND
38 1D7
37 1D8
36 2D1
35 2D2
34 GND
33 2D3
32 2D4
31 VCC
30 2D5
29 2D6
28 GND
27 2D7
26 2D8
25 2CK
3
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HD74ALVCH16373 | 16-bit Transparent D-type Latches with 3-state Outputs | Hitachi Semiconductor |
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