74LVT623 데이터 시트보기 (PDF) - Philips Electronics
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74LVT623 Datasheet PDF : 10 Pages
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Philips Semiconductors
3.3 V octal transceiver with dual enable (3-State)
Product specification
74LVT623
LOGIC SYMBOL (IEEE/IEC)
1
EN1
19
EN1
2
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
SA00196
PIN DESCRIPTION
PIN NUMBER SYMBOL
NAME AND FUNCTION
1
OEAB
Output enable input, A side to B
side (active-High)
2, 3, 4, 5,
6, 7, 8, 9
A0 – A7 Data inputs/outputs (A side)
18, 17, 16, 15,
14, 13, 12, 11
B0 – B7
Data inputs/outputs (B side)
19
OEBA
Output enable input, B side to A
side (active-Low)
10
GND Ground (0 V)
20
VCC Positive supply voltage
FUNCTION TABLE
INPUTS
INPUTS/OUTPUTS
OEBA OEAB
An
Bn
L
L
An = Bn
Inputs
H
H
Inputs
Bn = An
H
L
Z
Z
L
H
An = Bn
Bn = An
H = High voltage level
L = Low voltage level
Z = High impedance “off” state
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
VCC
IIK
VI
IOK
VOUT
IOUT
DC supply voltage
DC input diode current
DC input voltage3
DC output diode current
DC output voltage3
DC output current
VI < 0
VO < 0
Output in Off or High state
Output in Low state
Output in High state
–0.5 to +4.6
V
–50
mA
–0.5 to +7.0
V
–50
mA
–0.5 to +7.0
V
128
mA
–64
Tstg
Storage temperature range
–65 to 150
°C
NOTES:
1. Stresses beyond those listed may cause permanent damage to the device. These are stress ratings only and functional operation of the
device at these or any other conditions beyond those indicated under “recommended operating conditions” is not implied. Exposure to
absolute-maximum-rated conditions for extended periods may affect device reliability.
2. The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability. The maximum junction temperature of this integrated circuit should not exceed 150°C.
3. The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
1999 Jul 09
3
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