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HD74BC373A Datasheet

Octal D Type Transparent Latches

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HD74BC373A
Octal D Type Transparent Latches With 3 State Outputs
REJ03D0283–0300Z
(Previous ADE-205-009A (Z))
Rev.3.00
Jul.16.2004
Description
The HD74BC373A 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 D type latches with three state outputs in a 20 pin package. When
the latch enable input is high, the Q outputs will follow the D inputs. 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.
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 input pins
Ta = –40 to + 85°C
Ordering Information
Part Name
Package Type
Package Code
Package
Abbreviation
HD74BC373AFPEL
SOP-20 pin (JEITA) FP-20DAV
FP
HD74BC373ATELL
TSSOP-20 pin
TTP-20DAV
T
Note: Please consults the sales office for the above package availability.
Taping Abbreviation
(Quantity)
EL (2,000 pcs/reel)
ELL (2,000 pcs/reel)
Function Table
G
HX
LH
LH
LL
H : High level
L : Low level
X : Immaterial
Z : High impedance
Inputs
LE
X
L
H
X
D
Z
L
H
No change
Output Q
Rev.3.00, Jul.16.2004, page 1 of 8


Renesas Electronics Components Datasheet

HD74BC373A Datasheet

Octal D Type Transparent Latches

No Preview Available !

HD74BC373A
Pin Arrangement
G
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
1
2
3
4
5
6
7
8
9
10
20 VCC
19 8Q
18 8D
17 7D
16 7Q
15 6Q
14 6D
13 5D
12 5Q
11 LE
(Top view)
Absolute Maximum Ratings
Item
Symbol
Rating
Unit
Supply voltage
Input diode current
Input voltage
Output voltage
Off state output voltage
Storage temperature
VCC
IIK
VIN
VOUT
VOUT(off)
Tstg
–0.5 to +7.0
±30
–0.5 to +7.5
–0.5 to +7.5
–0.5 to +5.5
–65 to +150
V
mA
V
V
V
°C
Note: 1. The absolute maximum ratings are values which must not individually be exceeded, and furthermore, no two
of which may be realized at the same time.
Recommended Operating Conditions
Item
Symbol
Min
Typ
Supply voltage
Input voltage
Output voltage
Operating temperature
VCC
VIN
VOUT
Topr
4.5
0
0
–40
5.0
Input rise/fall time*1
tr, tf
0
Note: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
Max
5.5
VCC
VCC
85
8
V
V
V
°C
ns/V
Unit
Rev.3.00, Jul.16.2004, page 2 of 8


Part Number HD74BC373A
Description Octal D Type Transparent Latches
Maker Renesas
Total Page 9 Pages
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