FBL2033BB Ver la hoja de datos (PDF) - Philips Electronics
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FBL2033BB Datasheet PDF : 14 Pages
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Philips Semiconductors
3.3V BTL 8-bit latched/registered/pass-thru
universal transceiver
Product specification
FBL2033
FUNCTION TABLE
MODE
AIn to Bn thru mode
AIn to Bn transparent latch
AIn to Bn latch and read
AIn to Bn register
Bn outputs latched and read
(preconditioned latch)
Bn to AOn thru mode
Bn to AOn transparent latch
Bn to AOn latch and read
Bn to AOn register
AOn outputs latched and read
(preconditioned latch)
Disable Bn outputs
Disable AOn outputs
INPUTS
OUTPUTS
AIn Bn* OEB0 OEB1 OEA LCAB LCBA SAB1 SBA1 AOn
Bn
0
0
L
—
H
L
L
X
X
LL
XX
Z
H**
H
—
H
L
L
X
X
LL
XX
Z
L
L
—
H
L
L
H
X
HX
XX
Z
H**
H
—
H
L
L
H
X
HX
XX
Z
L
l
—
H
L
L
↓
X
HX
XX
Z
H**
h
—
H
L
L
↓
X
HX
XX
Z
L
L
—
H
L
L
↑
X
LH
XX
Z
H**
H
—
H
L
L
↑
X
LH
XX
Z
L
X
—
H
L
L
L
X
HX
XX
Z
latched
data
X
L
L
H
H
X
X
XX
LL
H
input
X
H
L
H
H
X
X
XX
LL
L
input
X
L
L
H
H
X
H
XX
HX
H
input
X
H
L
H
H
X
H
XX
HX
L
input
X
l
L
H
H
X
↓
XX
HX
H
input
X
h
L
H
H
X
↓
XX
HX
L
input
X
L
L
H
H
X
↑
XX
LH
H
input
X
H
L
H
H
X
↑
XX
LH
L
input
X
X
L
H
H
X
L
XX
HX
latched
data
X
X
X
L
X
X
X
X
XX
XX
X
H**
X
X
X
H
X
X
X
XX
XX
X
H**
X
X
X
X
L
X
X
XX
XX
Z
X
FUNCTION SELECT TABLE
MODE SELECTED
Thru mode
Register mode
Latch mode
SXX1
L
L
H
SXX0
L
H
X
NOTES:
H = High voltage level
L = Low voltage level
h = High voltage level one set-up time prior to the High-to-Low LCXX transition
l = Low voltage level one set-up time prior to the High-to-Low LCXX transition
X = Don’t care
Z = High-impedance (OFF) state
— = Input not externally driven
↑ = Low-to-High transition
↓ = High-to-Low transition
H** = Goes to level of pull-up voltage
Bn* = Precaution should be taken to ensure B inputs do not float. If they do, they are equal to Low state.
In Loopback mode (Loopback = High), AIn inputs are routed to the AOn outputs. The Bn inputs are blocked out.
1999 Apr 15
4
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