MC74LCX16543 Datasheet, PDF (3/8 Pages) Motorola, Inc – LOW-VOLTAGE CMOS 16-BIT LATCHING TRANSCEIVER

MC74LCX16543
FUNCTION TABLE
OEABn OEBAn
Inputs
EABn
EBAn
LEABn LEBAn
Data Ports
An
Bn
Operating Mode
H
H
Input
Input
X
X
X
X
X
X
Disable Outputs
L
L
L
L
X
X
Transparent Data; Outputs Disabled
H
H
l
h
l
Latch and Outputs Disabled
h
L
H
Input
Output
H
X*
L
X
l
h
Z
Load and B Outputs Disabled
Z
H
X
X
Z
Hold; B Outputs Disabled
L
X*
L
X
L
H
L
Transparent A to B
H
H
X
l
h
L
Latch and Display B Outputs
H
H
L
Output
Input
X*
H
X
L
Z
Z
l
Load and A Outputs Disabled
h
X
H
Z
X
Hold; A Outputs DIsabled
X*
L
X
L
L
H
L
Transparent B to A
H
X
H
L
H
l
Latch and Display A Outputs
h
H = High Voltage Level; h = High Voltage Level One Setup Time Prior to the Latch Enable or Enable Low–to–High Transition; L = Low Voltage Level;
l = Low Voltage Level One Setup Time Prior to the Latch Enable or Enable Low–to–High Transition; X = Don’t Care; * = The latches are not internally
gated with the Output Enables. Therefore, data at the A or B ports may enter the latches at any time, provided that the LExx and Exx pins are set
accordingly. For ICC reasons, Do Not Float Inputs.
ABSOLUTE MAXIMUM RATINGS*
Symbol
Parameter
Value
Condition
Unit
VCC
DC Supply Voltage
–0.5 to +7.0
V
VI
DC Input Voltage
–0.5 ≤ VI ≤ +7.0
V
VO
DC Output Voltage
–0.5 ≤ VO ≤ +7.0
Output in 3–State
V
–0.5 ≤ VO ≤ VCC + 0.5
Note 1.
V
IIK
DC Input Diode Current
–50
VI < GND
mA
IOK
DC Output Diode Current
–50
VO < GND
mA
+50
VO > VCC
mA
IO
DC Output Source/Sink Current
±50
mA
ICC
DC Supply Current Per Supply Pin
±100
mA
IGND
DC Ground Current Per Ground Pin
±100
mA
TSTG
Storage Temperature Range
–65 to +150
°C
* Absolute maximum continuous ratings are those values beyond which damage to the device may occur. Exposure to these conditions or conditions
beyond those indicated may adversely affect device reliability. Functional operation under absolute–maximum–rated conditions is not implied.
1. Output in HIGH or LOW State. IO absolute maximum rating must be observed.
LCX DATA
3
BR1339 — REV 3
MOTOROLA