Product specification
Supersedes data of 1995 Dec 21
IC23 Data Handbook
1998 Feb 13
Philips Semiconductors Product specification
SYMBOL
PARAMETER
UNIT
2.5V/3.3V 16-bit registered transceiver (3-State)
FEA TURES
•16-bit universal bus interface
•5V I/O Compatible
•3-State buffers
•Output capability: +64mA/-32mA
•TTL input and output switching levels
•Input and output interface capability to systems at 5V supply
•Bus-hold data inputs eliminate the need for external pull-up
resistors to hold unused inputs
•Live insertion/extraction permitted
•Power-up 3-State
•Power-up reset
•No bus current loading when output is tied to 5V bus
•Latch-up protection exceeds 500mA per JEDEC Std 17
•ESD protection exceeds 2000V per MIL STD 883 Method 3015
and 200V per Machine Model
QUICK REFERENCE DATA
t
PLH
t
PHL
C
C
I
CCZ
IN
I/O
Propagation delay
nAx to nBx or nBx to nAx
Input capacitance DIR, OEVI = 0V or V
I/O pin capacitanceOutputs disabled; V
Total supply currentOutputs disabled4070µA
CL = 50pF
DESCRIPTION
The 74ALVT16543 is a high-performance BiCMOS product
designed for V
to 5V. The device can be used as two 8-bit transceivers or one
16-bit transceiver.
The 74ALVT16543 contains two sets of eight D-type latches, with
separate control pins for each set. Using data flow from A to B as an
example, when the A-to-B Enable (nEAB
Enable (nLEAB
A subsequent Low-to-High transition of the nLEAB
data into the latches where it is stored and the B outputs no longer
change with the A inputs. With nEAB
3-State B output buffers are active and display the data present at
the outputs of the A latches.
Control of data flow from B to A is similar, but using the nEBA
nLEBA
, and nOEBA inputs.
Active bus-hold circuitry is provided to hold unused or floating data
inputs at a valid logic level.
CONDITIONS
T
= 25°C; GND = 0V
amb
CC
74ALVT16543
operation at 2.5V or 3.3V with I/O compatibility up
CC
) input are Low, the A-to-B path is transparent.
= 0V or V
I/O
CC
) input and the A-to-B Latch
signal puts the A
and nOEAB both Low, the
TYPICAL
2.5V3.3V
1.8
2.7
1.6
1.8
33pF
99pF
,
ns
ORDERING INFORMATION
PACKAGESTEMPERATURE RANGE OUTSIDE NORTH AMERICANORTH AMERICADWG NUMBER
56-Pin Plastic SSOP Type III–40°C to +85°C74ALVT16543 DLAV16543 DLSOT371-1
56-Pin Plastic TSSOP Type II–40°C to +85°C74ALVT16543 DGGAV16543 DGGSOT364-1
H = High voltage level
h = High voltage level one set-up time prior to the Low-to-High transition of nLEXX
L = Low voltage level
l = Low voltage level one set-up time prior to the Low-to-High transition of nLEXX
X = Don’t care
↑ = Low-to-High transition of nLEXX
NC= No change
Z = High impedance or “off” state
↑
↑
L
L
L
L
L
L
↑
↑
L
L
h
l
h
l
H
L
or nEXX (XX = AB or BA)
nOEAB
nEAB
nLEAB
SH00039
Z
Z
H
L
H
L
Disabled + Latch
Latch + Display
Transparent
or nEXX (XX = AB or BA)
or nEXX (XX = AB or BA)
1998 Feb 13
4
Philips Semiconductors Product specification
I
DC out ut current
mA
SYMBOL
PARAMETER
UNIT
I
mA
2.5V/3.3V 16-bit registered transceiver (3-State)
ABSOLUTE MAXIMUM RATINGS
SYMBOL
V
CC
I
IK
V
I
I
OK
V
OUT
OUT
T
stg
DC supply voltage–0.5 to +4.6V
DC input diode currentVI < 0–50mA
DC input voltage
DC output diode currentVO < 0–50mA
DC output voltage
p
Storage temperature range–65 to +150°C
PARAMETERCONDITIONSRATINGUNIT
3
3
1, 2
Output in Off or High state–0.5 to +7.0V
Output in Low state128
Output in High state–64
74ALVT16543
–0.5 to +7.0V
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.
RECOMMENDED OPERATING CONDITIONS
2.5V RANGE LIMITS 3.3V RANGE LIMITS
MINMAXMINMAX
V
CC
V
V
V
I
OH
OL
∆t/∆vInput transition rise or fall rate; Outputs enabled1010ns/V
T
amb
DC supply voltage2.32.73.03.6V
Input voltage05.505.5V
I
High-level input voltage1.72.0V
IH
Input voltage0.70.8V
IL
High-level output current–8–32mA
Low-level output current832
Low-level output current; current duty cycle ≤ 50%; f ≥ 1kHz2464
Operating free-air temperature range–40+85–40+85°C
1998 Feb 13
5
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