74VHC16373TTR

1/11February 2003
HIGH SPEED:
t
PD
= 5.0 ns (TYP.) at V
CC
=5V
LOW POWER DISSIPATION:
I
CC
=4µA (MAX.) at T
A
=25°C
HIGH NOISE IMMUNITY:
V
NIH
=V
NIL
= 28% V
CC
(MIN.)
POWER DOWN PROTECTION ON INPUTS
SYMMETRICAL OUTPUT IMPEDANCE:
|I
OH
|=I
OL
=8mA(MIN)
BALANCED PROPAGATION DELAYS:
t
PLH
t
PHL
OPERATING VOLTAGE RANGE:
V
CC
(OPR) = 2V to 5.5V
PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16373
IMPROVED LATCH-UP IMMUNITY
LOW NOISE: V
OLP
= 0.9V (MAX.)
DESCRIPTION
The 74VHC16373 is an advanced high-speed
CMOS 16 BIT D-TYPE LATCH with 3 STATE
OUTPUTS NON INVERTING fabricated with
sub-micron silicon gate and double-layer metal
wiring C
2
MOS technology.
These 16 bit D-TYPE latches are byte controlled
by two latch enable inputs (nLE) and two output
enable inputs(nOE
).
While the nLE input is held at a high level, the nQ
outputs will follow the data (D) inputs.
When the nLE is taken LOW, the nQ outputs will
be latched at the logic level of D data inputs.
When the (nOE
) input is low, the nQ outputs will
be in a normal logic state (high or low logic level);
when nOE
is at high level ,the outputs will be in a
high impedance state.
Power down protection is provided on all inputs
and 0 to 7V can be accepted on inputs with no
regard to the supply voltage. This device can be
used to interface 5V to 3V.
All inputs and outputs are equipped with protec-
tion circuits against static discharge, giving them
2KV ESD immunity and transient excess voltage.
74VHC16373
16-BIT D-TYPE LATCH
WITH 3-STATE OUTPUTS NON INVERTING
ORDER CODES
PACKAGE TUBE T & R
TSSOP 74VHC16373TTR
TSSOP
PIN CONNECTION
Obsolete Product(s) - Obsolete Product(s)
74VHC16373
2/11
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
TRUTH TABLE
X : Don‘t Care
Z : High Impedance
* : Q outputs are latched at the time when the LE input is taken low
logic level.
IEC LOGIC SYMBOLS
PIN No SYMBOL NAME AND FUNCTION
1 1OE
3 State Output Enable
Input (Active LOW)
2, 3, 5, 6, 8, 9,
11, 12
1Q0 to 1Q7 3-State Outputs
13, 14, 16, 17,
19, 20, 22, 23
2Q0 to 2Q7 3-State Outputs
24 2OE
3 State Output Enable
Input (Active LOW)
25 2LE Latch Enable Input
36, 35, 33, 32,
30, 29, 27, 26
2D0 to 2D7 Data Inputs
47, 46, 44, 43,
41, 40, 38, 37
1D0 to 1D7 Data Inputs
48 1LE Latch Enable Input
4, 10, 15, 21,
28, 34, 39, 45
GND Ground (0V)
7, 18, 31, 42 V
CC
Positive Supply Voltage
INPUTS OUTPUT
OE
LE D Q
HXX Z
L L X NO CHANGE *
LHL L
LHH H
Obsolete Product(s) - Obsolete Product(s)
74VHC16373
3/11
LOGIC DIAGRAM
This logic diagram has not to be used to estimate propagation delays
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
RECOMMENDED OPERATING CONDITIONS
1) V
IN
from 30% to 70% of V
CC
Symbol Parameter Value Unit
V
CC
Supply Voltage
-0.5 to +7.0 V
V
I
DC Input Voltage
-0.5 to +7.0 V
V
O
DC Output Voltage -0.5 to V
CC
+ 0.5
V
I
IK
DC Input Diode Current
-20 mA
I
OK
DC Output Diode Current
± 20 mA
I
O
DC Output Current
± 25 mA
I
CC
or I
GND
DC V
CC
or Ground Current
± 75 mA
T
stg
Storage Temperature
-65 to +150 °C
T
L
Lead Temperature (10 sec)
300 °C
Symbol Parameter Value Unit
V
CC
Supply Voltage
2 to 5.5 V
V
I
Input Voltage
0 to 5.5 V
V
O
Output Voltage 0 to V
CC
V
T
op
Operating Temperature
-55 to 125 °C
dt/dv
Input Rise and Fall Time (note 1) (V
CC
=3.3±0.3V)
(V
CC
= 5.0 ± 0.5V)
0 to 100
0to20
ns/V
Obsolete Product(s) - Obsolete Product(s)

74VHC16373TTR

Mfr. #:
Manufacturer:
STMicroelectronics
Description:
Latches 16-Bit "D" Latch
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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