74ABT899 查看數據表（PDF） - Philips Electronics
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产品描述 (功能)
比赛名单
74ABT899
Philips Electronics
74ABT899 Datasheet PDF : 16 Pages
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Philips Semiconductors
9-bit dual latch transceiver with 8-bit parity
generator/checker (3-State)
Product specification
74ABT899
PARITY AND ERROR FUNCTION TABLE
INPUTS
OUTPUTS
SEL
ODD/EVEN
xPAR Σ of High xPAR
(A or B) Inputs (B or A)
ERRt
H
H
H
Even
Odd
H
H
H
L
H
H
L
Even
Odd
L
L
L
H
H
L
H
Even
Odd
H
H
L
H
H
L
L
Even
Odd
L
L
H
L
L
H
H
Even
Odd
H
L
H
L
L
H
L
Even
Odd
H
L
L
H
L
L
H
Even
Odd
L
H
L
H
L
L
L
Even
Odd
L
H
H
L
H = High voltage level
L = Low voltage level
t = Transmit–if the data path is from A→B then ERRt is ERRA
r = Receive–if the data path is from A→B then ERRr is ERRB
* Blocked if latch is not transparent
ERRr*
H
L
L
H
L
H
H
L
H
H
H
H
H
H
H
H
Odd
Mode
PARITY MODES
Feed-through/check parity
Even
Mode
Odd
Mode
Even
Mode
Generate parity
ABSOLUTE MAXIMUM RATINGS1, 2
SYMBOL
PARAMETER
CONDITIONS
RATING
UNIT
VCC
DC supply voltage
–0.5 to +7.0
V
IIK
DC input diode current
VI
DC input voltage3
VI < 0
–18
mA
–1.2 to +7.0
V
IOK
DC output diode current
VO < 0
–50
mA
VOUT
DC output voltage3
output in Off or High state
–0.5 to +5.5
V
IOUT
DC output current
output in Low state
128
mA
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 1505C.
3. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
1998 Jan 16
5
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