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HD74ALVCH16820 PDF даташит

Спецификация HD74ALVCH16820 изготовлена ​​​​«Hitachi Semiconductor» и имеет функцию, называемую «3.3-V 10-bit Flip Flops with Dual Outputs».

Детали детали

Номер произв HD74ALVCH16820
Описание 3.3-V 10-bit Flip Flops with Dual Outputs
Производители Hitachi Semiconductor
логотип Hitachi Semiconductor логотип 

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HD74ALVCH16820 Даташит, Описание, Даташиты
HD74ALVCH16820
3.3-V 10-bit Flip Flops with Dual Outputs
ADE-205-170B (Z)
3rd. Edition
December 1999
Description
The flip flops of the HD74ALVCH16820 are edge triggered D-type flip flops. On the positive transition of
the clock (CLK) input, the device provides true data at the Q outputs. A buffered output enable (OE) input
can be used to place the ten outputs in either a normal logic state (high or low logic level) or a high
impedance state. In the high impedance state, the outputs neither load nor drive the bus lines significantly.
The high impedance state and increased drive provide the capability to drive bus lines without need for
interface or pullup components. OE input does not affect the internal operation of the flip flops. Old data
can be retained or new data can be entered while 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.
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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HD74ALVCH16820 Даташит, Описание, Даташиты
HD74ALVCH16820
Function Table
Inputs
Output Qn *1
OEn *2
CLK
D
L HH
LLL
L L X Q0 *1
HX XZ
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.
2. n = 1, 2
2









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HD74ALVCH16820 Даташит, Описание, Даташиты
Pin Arrangement
HD74ALVCH16820
1OE 1
1Q1 2
1Q2 3
GND 4
2Q1 5
2Q2 6
VCC 7
3Q1 8
3Q2 9
4Q1 10
GND 11
4Q2 12
5Q1 13
5Q2 14
6Q1 15
6Q2 16
7Q1 17
GND 18
7Q2 19
8Q1 20
8Q2 21
VCC 22
9Q1 23
9Q2 24
GND 25
10Q1 26
10Q2 27
2OE 28
(Top view)
56 CLK
55 D1
54 NC
53 GND
52 D2
51 NC
50 VCC
49 D3
48 NC
47 D4
46 GND
45 NC
44 D5
43 NC
42 D6
41 NC
40 D7
39 GND
38 NC
37 D8
36 NC
35 VCC
34 D9
33 NC
32 GND
31 D10
30 NC
29 NC
3










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