•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
nCPBA to nAx or
nCPAB to nBx
Input capacitanceVI = 0V or V
I/O pin capacitance
Total supply currentOutputs disabled4070µA
DESCRIPTION
The 74ALVT16953 is a high-performance BiCMOS product
designed for V
to 5V .
The 74ALVT16953 is a dual octal registered inverting transceiver.
Two 8-bit registers store data flowing in both directions between two
bidirectional buses. Data applied to the inputs is entered and stored
on the rising edge of the Clock (nCPXX) provided that the Clock
Enable (nCEXX
output buffers, but is only accessible when the Output Enable
(nOEXX
for B inputs to A outputs.
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
CL = 50pF;
CC
V
= 0V or V
I/O
Outputs disabled
operation at 2.5V or 3.3V with I/O compatibility up
CC
) is Low. The data is then present at the 3-State
) is Low. Data flow from A inputs to B outputs is the same as
TYPICAL
2.5V3.3V
3.0
3.0
2.2
2.3
33pF
CC
99pF
ns
ORDERING INFORMATION
PACKAGESTEMPERATURE RANGE OUTSIDE NORTH AMERICANORTH AMERICADWG NUMBER
56-Pin Plastic SSOP Type III–40°C to +85°C74ALVT16953 DLAV16953 DLSOT371-1
56-Pin Plastic TSSOP Type II–40°C to +85°C74ALVT16953 DGGAV16953 DGGSOT364-1
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
DC output currentoutput in Low state
Storage temperature range–65 to +150°C
PARAMETERCONDITIONSRATINGUNIT
3
3
1, 2
–0.5 to +7.0V
output in Off or High state–0.5 to +7.0V
output in High state
128
–64
mA
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 voltage ratings may be exceeded if the input and output current ratings are observed.
RECOMMENDED OPERATING CONDITIONS
2.5V RANGE LIMITS3.3V 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 Mar 26
5
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