HD74BC574A Datasheet PDF - Hitachi Semiconductor
| Part Number | HD74BC574A | |
| Description | Octal D Type Flip Flops With 3 State Outputs | |
| Manufacturers | Hitachi Semiconductor | |
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HD74BC574A
Octal D Type Flip Flops With 3 State Outputs
ADE-205-042 (Z)
Rev. 0
June 1993
Description
The HD74BC574A provides high drivability and operation equal to or better than high speed bipolar
standard logic IC by using Bi-CMOS process. The device features low power dissipation that is about 1/5
of high speed bipolar logic IC, when the frequency is 10 MHz. The device has eight edge triger D type flip
flops with three state outputs in a 20 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 strage elements.
Features
• Input/Output are at high impedance state when power supply is off.
• Built in input pull up circuit can make input pins be open, when not used.
• TTL level input
• Wide operating temperature range
Ta = –40 to + 85°C
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HD74BC574A
Electrical Characteristics (Ta = –40°C to +85°C)
Item
Input voltage
Output voltage
Input diode voltage
Input current
Short circuit output current*1
Off state output current
Supply current
Symbol
VIH
VIL
VOH
VOL
VIK
II
I OS
I OZH
I OZL
I CCL
VCC (V)
4.5
4.5
4.5
4.5
4.5
5.5
5.5
5.5
5.5
5.5
5.5
5.5
Min
2.0
—
2.4
2.0
—
—
—
—
—
—
–100
—
—
—
Max
—
0.8
—
—
0.4
0.5
–1.2
–250
1.0
100
–225
50
–50
29.5
Unit
V
V
V
V
V
V
V
µA
µA
µA
mA
µA
µA
mA
Test Conditions
IOH = –3 mA
IOH = –15 mA
IOL = 24 mA
IOL = 48 mA
IIN = –18 mA
VIN = 0 V
VIN = 5.5 V
VIN = 7.0 V
VIN = 0 or 5.5 V
VO = 2.7 V
VO = 0.5 V
VIN = 0 or 5.5 V
All outputs is “L”
I CCH
5.5 —
2.5 mA VIN = 0 or 5.5 V
All outputs is “H”
I CCZ
5.5 —
2.5 mA VIN = 0 or 5.5 V
All outputs is “Z”
I
*2
CCT
5.5
—
1.5 mA VIN = 3.4 or 0.5 V
Notes: 1. Not more than one output should be shorted at a time and duration of the short circuit should not
exceed one second.
2. When input by the TTL level, it shows ICC increase at per one input pin.
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for HD74BC574A electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ HD74BC574A.PDF Datasheet ] | |
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