74VCXH16374
Low−Voltage 1.8/2.5/3.3V
16−Bit D−Type Flip−Flop
With 3.6 V−Tolerant Inputs and Outputs
(3−State, Non−Inverting)
The 74VCXH16374 is an advanced performance, non−inverting
16−bit D−type flip−flop. It is designed for very high−speed, very
low−power operation in 1.8 V, 2.5 V or 3.3 V systems. The VCXH16374
is byte controlled, with each byte functioning identically, but
independently. Each byte has separate Output Enable and Clock Pulse
inputs. These control pins can be tied together for full 16−bit operation.
When operating at 2.5 V (or 1.8 V) the part is designed to tolerate
voltages it may encounter on either inputs or outputs when interfacing
to 3.3 V busses. It is guaranteed to be overvoltage tolerant to 3.6V.
The 74VCXH16374 consists of 16 edge−triggered flip−flops with
individual D−type inputs and 3.6 V−tolerant 3−state outputs. The
clocks (CPn) and Output Enables (OEn) are common to all flip−flops
within the respective byte. The flip−flops will store the state of
individual D inputs that meet the setup and hold time requirements on
the LOW−to−HIGH Clock (CP) transition. With the OE LOW, the
contents of the flip−flops are available at the outputs. When the OE is
HIGH, the outputs go to the high impedance state. The OE input level
does not affect the operation of the flip−flops. The data inputs include
active bushold circuitry, eliminating the need for external pullup
resistors to hold unused or floating inputs at a valid logic state.
Features
http://onsemi.com
MARKING DIAGRAM
48
48
1
VCXH16374
AWLYYWW
TSSOP−48
DT SUFFIX
CASE 1201
A
WL
YY
WW
1
= Assembly Location
= Wafer Lot
= Year
= Work Week
PIN NAMES
Pins
OEn
CPn
D0−D15
O0−O15
Function
Output Enable Inputs
Clock Pulse Inputs
Inputs
Outputs
•
Designed for Low Voltage Operation: V
CC
= 1.65 V
−
3.6 V
•
3.6 V Tolerant Inputs and Outputs
•
High Speed Operation: 3.0 ns max for 3.0 V to 3.6V
•
•
•
•
•
•
•
•
3.9 ns max for 2.3 V to 2.7V
7.8 ns max for 1.65 V to 1.95V
Static Drive:
±24
mA Drive at 3.0 V
±18
mA Drive at 2.3 V
±6
mA Drive at 1.65 V
Supports Live Insertion and Withdrawal
Includes Active Bushold to Hold Unused or Floating Inputs at a Valid
Logic State
I
OFF
Specification Guarantees High Impedance When V
CC
= 0 V*
Near Zero Static Supply Current in All Three Logic States (20
mA)
Substantially Reduces System Power Requirements
Latchup Performance Exceeds
±250
mA @ 125°C
ESD Performance: Human Body Model >2000 V
Machine Model >200 V
All Devices in Package TSSOP are Inherently Pb−Free**
ORDERING INFORMATION
Device
74VCXH16374DT
74VCXH16374DTR
Package
TSSOP
(Pb−Free)
TSSOP
(Pb−Free)
Shipping
†
39 / Rail
2500 / Reel
†For information on tape and reel specifications,
including part orientation and tape sizes, please
refer to our Tape and Reel Packaging Specification
Brochure, BRD8011/D.
*To ensure the outputs activate in the 3−state condition, the output enable pins
should be connected to V
CC
through a pullup resistor. The value of the resistor
is determined by the current sinking capability of the output connected to the
OE pin.
**For additional information on our Pb−Free strategy and soldering details,
please download the ON Semiconductor Soldering and Mounting Techniques
Reference Manual, SOLDERRM/D.
©
Semiconductor Components Industries, LLC, 2006
June, 2006
−
Rev. 5
1
Publication Order Number:
74VCXH16374/D
74VCXH16374
TRUTH TABLE
Inputs
CP1
↑
↑
X
X
OE1
L
L
L
H
D0:7
H
L
X
X
Outputs
O0:7
H
L
O0
Z
CP2
↑
↑
X
X
Inputs
OE2
L
L
L
H
D8:15
H
L
X
X
Outputs
O8:15
H
L
O0
Z
H = High Voltage Level
L = Low Voltage Level
Z = High Impedance State
↑
= Low−to−High Transition
X = High or Low Voltage Level and Transitions Are Acceptable, for I
CC
reasons, DO NOT FLOAT Inputs.
O0 = No Change.
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC
V
I
V
O
I
IK
I
OK
I
O
I
CC
I
GND
T
STG
DC Supply Voltage
DC Input Voltage
DC Output Voltage
Parameter
Value
−0.5
to +4.6
−0.5
≤
V
I
≤
+4.6
−0.5
≤
V
O
≤
+4.6
−0.5
≤
V
O
≤
V
CC
+ 0.5
DC Input Diode Current
DC Output Diode Current
−50
−50
+50
DC Output Source/Sink Current
DC Supply Current Per Supply Pin
DC Ground Current Per Ground Pin
Storage Temperature Range
±50
±100
±100
−65
to +150
Output in 3−State
Note 1; Outputs Active
V
I
< GND
V
O
< GND
V
O
> V
CC
Condition
Unit
V
V
V
V
mA
mA
mA
mA
mA
mA
°C
Stresses exceeding Maximum Ratings may damage the device. Maximum Ratings are stress ratings only. Functional operation above the
Recommended Operating Conditions is not implied. Extended exposure to stresses above the Recommended Operating Conditions may affect
device reliability.
1. I
O
absolute maximum rating must be observed.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
CC
V
I
V
O
I
OH
I
OL
I
OH
I
OL
I
OH
I
OL
T
A
Dt/DV
Supply Voltage
Input Voltage
Output Voltage
HIGH Level Output Current, V
CC
= 3.0 V
−
3.6 V
LOW Level Output Current, V
CC
= 3.0 V
−
3.6 V
HIGH Level Output Current, V
CC
= 2.3 V
−
2.7 V
LOW Level Output Current, V
CC
= 2.3 V
−
2.7 V
HIGH Level Output Current, V
CC
= 1.65 V
−
1.95 V
LOW Level Output Current, V
CC
= 1.65 V
−
1.95 V
Operating Free−Air Temperature
Input Transition Rise or Fall Rate, V
IN
from 0.8 V to 2.0 V, V
CC
= 3.0 V
−40
0
(Active State)
(3−State)
Parameter
Operating
Data Retention Only
Min
1.65
1.2
−0.3
0
0
Typ
3.3
3.3
Max
3.6
3.6
3.6
V
CC
3.6
−24
24
−18
18
−6
6
+85
10
Unit
V
V
V
mA
mA
mA
mA
mA
mA
°C
ns/V
http://onsemi.com
3
74VCXH16374
DC ELECTRICAL CHARACTERISTICS
T
A
=
−40°C
to +85°C
Symbol
V
IH
Characteristic
HIGH Level Input Voltage (Note 2)
Condition
1.65 V
≤
V
CC
< 2.3 V
2.3 V
≤
V
CC
≤
2.7 V
2.7 V < V
CC
≤
3.6 V
V
IL
LOW Level Input Voltage (Note 2)
1.65 V
≤
V
CC
< 2.3 V
2.3 V
≤
V
CC
≤
2.7 V
2.7 V < V
CC
≤
3.6 V
V
OH
HIGH Level Output Voltage
1.65 V
≤
V
CC
≤
3.6 V; I
OH
=
−100
mA
V
CC
= 1.65 V; I
OH
=
−6
mA
V
CC
= 2.3 V; I
OH
=
−6
mA
V
CC
= 2.3 V; I
OH
=
−12
mA
V
CC
= 2.3 V; I
OH
=
−18
mA
V
CC
= 2.7 V; I
OH
=
−12
mA
V
CC
= 3.0 V; I
OH
=
−18
mA
V
CC
= 3.0 V; I
OH
=
−24
mA
V
OL
LOW Level Output Voltage
1.65 V
≤
V
CC
≤
3.6 V; I
OL
= 100
mA
V
CC
= 1.65 V; I
OL
= 6 mA
V
CC
= 2.3 V; I
OL
= 12 mA
V
CC
= 2.3 V; I
OL
= 18 mA
V
CC
= 2.7 V; I
OL
= 12 mA
V
CC
= 3.0 V; I
OL
= 18 mA
V
CC
= 3.0 V; I
OL
= 24 mA
I
I
I
I(HOLD)
Input Leakage Current
Minimum Bushold Input Current
1.65 V
≤
V
CC
≤
3.6 V; 0 V
≤
V
I
≤
3.6 V
V
CC
= 3.0 V, V
IN
= 0.8 V
V
CC
= 3.0 V, V
IN
= 2.0 V
V
CC
= 2.3 V, V
IN
= 0.7 V
V
CC
= 2.3 V, V
IN
= 1.6 V
V
CC
= 1.65 V, V
IN
= 0.57 V
V
CC
= 1.65 V, V
IN
= 1.07 V
I
I (OD)
Minimum Bushold Over−Drive
Current Needed to Change State
V
CC
= 3.6 V, (Note 3)
V
CC
= 3.6 V, (Note 4)
V
CC
= 2.7 V, (Note 3)
V
CC
= 2.7 V, (Note 4)
V
CC
= 1.95 V, (Note 3)
V
CC
= 1.95 V, (Note 4)
I
OZ
I
OFF
I
CC
DI
CC
2.
3.
4.
5.
3−State Output Current
Power−Off Leakage Current
Quiescent Supply Current (Note 5)
Increase in I
CC
per Input
1.65 V
≤
V
CC
≤
3.6 V; 0 V
≤
V
O
≤
3.6 V;
V
I
= V
IH
or V
IL
V
CC
= 0 V; V
I
or V
O
= 3.6 V
1.65 V
≤
V
CC
≤
3.6 V; V
I
= GND or V
CC
1.65 V
≤
V
CC
≤
3.6 V; 3.6 V
≤
V
I
, V
O
≤
3.6 V
2.7 V < V
CC
≤
3.6 V; V
IH
= V
CC
−
0.6 V
These values of V
I
are used to test DC electrical characteristics only.
An external driver must source at least the specified current to switch from LOW−to−HIGH.
An external driver must source at least the specified current to switch from HIGH−to−LOW.
Outputs disabled or 3−state only.
75
−75
45
−45
25
−25
450
−450
300
−300
200
−200
±10
10
20
±20
750
mA
mA
mA
mA
mA
mA
V
CC
−
0.2
1.25
2.0
1.8
1.7
2.2
2.4
2.2
0.2
0.3
0.4
0.6
0.4
0.4
0.55
±5.0
mA
mA
V
Min
0.65 x V
CC
1.6
2.0
0.35 x V
CC
0.7
0.8
V
V
Max
Unit
V
http://onsemi.com
4
嵌入式系统
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
