WITH 3-STATE OUTPUTS NO N INVERTING
■ HIGH SPEED:
f
= 185 MHz (TYP.) at VCC=5V
MAX
■ LOW POWER DISSIPATION:
I
=4µA (MAX.) at TA=25°C
CC
■ HIGH NOISE IMMUNITY:
V
NIH=VNIL
■ POWER DOWN PROTECTION ON INPUTS
■ SYMMETRICAL OUTPUT IMPEDANCE:
|I
|=IOL=8mA(MIN)
OH
■ BALANCED PROPAGATION DELAYS:
t
≅ t
PLH
■ OPERATING VOLTAGE RANGE:
V
(OPR) = 2V to 5.5V
CC
■ PIN AND FUNCTION COMPATIBLE WITH
74 SERIES 16374
■ IMPROVED LATCH-UP IMMUNITY
■ LOW NOISE: V
= 28% VCC(MIN.)
PHL
OLP
= 0.9V (MAX.)
74VHC16374
16-BIT D -TYPE FLIP FLOP
TSSOP
ORDER CODES
PACKAGE TUBE T & R
TSSOP 74VHC16374TTR
PIN CO NNECTION
DESCRIPTION
The 74VHC16374 is an advanced high-speed
FLIP FLOP 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 flip-flop is controlled by two
clock inputs (CK) and two output enable inputs
(nOE
). The device can be used as two 8-bit
flip-flops or one 16-bit flip-flop.
On the p os itive transition of the cl ock, the Q
outputs will be set to the logic state that were
setup at the D inputs.
While the (OE
) input is low , the outputs will be in
a normal logic state (high or low logic level); while
OE
is high, the outputs w ill be in a high impedanc e
state.
The output con trol does not affect the internal operation of flip-flops; that is, the old data c an be retained or the new data can be ent ered even while
the outputs are off.
Power down protection is provided on all inputs
and 0 to 7V can be accept ed on inputs with no
regard to the supply voltage. This device can be
usedto interface 5V to 3V.
All inputs and outputs are equipped with protection circuits against static discharge, giving them
2KV ESD immunity and transient excess vo ltage.
1/11February 2003
74VHC16374
INPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
PIN No SYMBOL NAME AND FUNCTION
1 1OE
2, 3,5,6,8, 9,
11, 12
13,14,16, 17,
19, 20, 22, 23
24 2OE
25 2CK Clock Input (LOW-to-HIGH
36,35,33, 32,
30, 29, 27, 26
47,46,44, 43,
41, 40, 38, 37
48 1CK Clock Input (LOW-to-HIGH
4, 10, 15, 21,
28, 34, 39, 45
7, 18, 31, 42 V
1Q0 to
1Q7
2Q0 to
2Q7
2D0 to 2D7 Data Inputs
1D0 to 1D7 Data Inputs
GND Ground (0V)
3 State Output Enable
Input (Active LOW)
3-State Outputs
3-State Outputs
3 State Output Enable
Input (Active LOW)
Edge Trigger)
Edge Trigger)
Positive Supply Voltage
CC
TRUTH TABLE
INPUTS OUTPUTS
IEC LOGIC SYMBOLS
OE
HXX Z
L X NO CHANGE
LLL
LHH
X : Don’t Care
Z : High Impedance
2/11
CK D Q
74VHC16374
LOGIC DIAGRAM
This logic diagram has not to be used to estimate propagation delays
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
CC
V
V
I
IK
I
OK
I
or I
I
CC
T
stg
T
Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these conditions is
not implied
Supply Voltage
DC Input Voltage
I
DC Output Voltage -0.5 to VCC+ 0.5
O
DC Input Diode Current
DC Output Diode Current
DC Output Current
O
DC VCCor Ground Current
GND
Storage Temperature
Lead Temperature (10 sec)
L
-0.5 to +7.0 V
-0.5 to +7.0 V
V
-20 mA
± 20 mA
± 25 mA
± 75 mA
-65 to +150 °C
300 °C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Value Unit
V
CC
V
V
T
dt/dv
1) VINfrom30% to 70%of V
Supply Voltage
Input Voltage
I
Output Voltage 0 to V
O
Operating Temperature
op
Input Rise and Fall Time (note 1) (V
CC
CC
(V
= 5.0 ± 0.5V)
CC
=3.3±0.3V)
2 to 5.5 V
0 to 5.5 V
CC
-55 to 125 °C
0 to 100
0to20
V
ns/V
3/11
74VHC16374
DC SPECIFICATIONS
Symbol Parameter
V
V
V
I
High Level Input
IH
Voltage
V
Low Level Input
IL
Voltage
High Level Output
OH
Voltage
Low Level Output
OL
Voltage
High Impedance
I
OZ
Output Leakage
Current
Input Leakage
I
I
Current
Quiescent Supply
CC
Current
Test Condition Value
V
(V)
CC
T
A
Min. Typ. Max. Min. Max. Min. Max.
-40 to 85°C -55 to 125°C
= 25°C
2.0 1.5 1.5 1.5
3.0to
5.5
0.7V
CC
0.7V
CC
0.7V
CC
2.0 0.5 0.5 0.5
3.0to
5.5
2.0
3.0
4.5
3.0
4.5
2.0
3.0
4.5
3.0
4.5
5.5
0to
5.5
5.5
IO=-50 µA
=-50 µA
I
O
=-50 µA
I
O
=-4 mA
I
O
=-8 mA
I
O
IO=50 µA
=50 µA
I
O
=50 µA
I
O
=4 mA
I
O
=8 mA
I
O
I=VIH
or V
IL
V
VO=VCCor GND
VI= 5.5V or GND
V
I=VCC
or GND
1.9 2.0 1.9 1.9
2.9 3.0 2.9 2.9
4.4 4.5 4.4 4.4
2.58 2.48 2.4
3.94 3.8 3.7
0.3V
CC
0.3V
CC
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.0 0.1 0.1 0.1
0.36 0.44 0.55
0.36 0.44 0.55
±0.25 ± 2.5 ± 5 µA
± 0.1 ± 1 ± 1 µA
44040µA
0.3V
CC
Unit
V
V
V
V
4/11