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74VCXH16373 Schematic ( PDF Datasheet ) - ON Semiconductor

Teilenummer 74VCXH16373
Beschreibung Low-Voltage 1.8/2.5/3.3 V 16-Bit Transparent Latch
Hersteller ON Semiconductor
Logo ON Semiconductor Logo 




Gesamt 11 Seiten
74VCXH16373 Datasheet, Funktion
www.DataSheet4U.com
74VCXH16373
Low−Voltage 1.8/2.5/3.3 V
16−Bit Transparent Latch
With 3.6 VTolerant Inputs and Outputs
(3State, NonInverting)
The 74VCXH16373 is an advanced performance, noninverting
16bit transparent latch. It is designed for very highspeed, very
lowpower operation in 1.8 V, 2.5 V or 3.3 V systems. The
VCXH16373 is byte controlled, with each byte functioning
identically, but independently. Each byte has separate Output Enable
and Latch Enable inputs. These control pins can be tied together for
full 16bit 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 3.6 V.
The 74VCXH16373 contains 16 Dtype latches with 3state
3.6 Vtolerant outputs. When the Latch Enable (LEn) inputs are
HIGH, data on the Dn inputs enters the latches. In this condition, the
latches are transparent, (a latch output will change state each time its D
input changes). When LE is LOW, the latch stores the information that
was present on the D inputs a setup time preceding the
HIGHtoLOW transition of LE. The 3state outputs are controlled
by the Output Enable (OEn) inputs. When OE is LOW, the outputs are
enabled. When OE is HIGH, the standard outputs are in the high
impedance state, but this does not interfere with new data entering into
the latches. 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
Designed for Low Voltage Operation: VCC = 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 3.6 V
3.9 ns max for 2.3 V to 2.7 V
6.8 ns max for 1.65 V to 1.95 V
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
IOFF Specification Guarantees High Impedance When VCC = 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
PbFree Package is Available**
*To ensure the outputs activate in the 3state condition,
the output enable pins should be connected to VCC through a
pullup resistor. The value of the resistor is determined by the
current sinking capability of the output connected to the OE pin.
© Semiconductor Components Industries, LLC, 2006
June, 2006 Rev. 6
1
http://onsemi.com
48
1
TSSOP48
DT SUFFIX
CASE 1201
MARKING DIAGRAM
48
VCXH16373
AWLYYWW
1
A = Assembly Location
WL = Wafer Lot
YY = Year
WW = Work Week
Pins
OEn
LEn
D0D15
O0O15
PIN NAMES
Function
Output Enable Inputs
Latch Enable Inputs
Inputs
Outputs
ORDERING INFORMATION
Device
74VCXH16373DT
Package
TSSOP
Shipping
39 / Rail
74VCXH16373DTR TSSOP 2500/Tape & Reel
74VCXH16373DTRG TSSOP 2500/Tape & Reel
(PbFree)
†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.
**For additional information on our PbFree strategy
and soldering details, please download the
ON Semiconductor Soldering and Mounting
Techniques Reference Manual, SOLDERRM/D.
Publication Order Number:
74VCXH16373/D






74VCXH16373 Datasheet, Funktion
74VCXH16373
DYNAMIC SWITCHING CHARACTERISTICS
TA = +25°C
Symbol
Characteristic
Condition
Typ Unit
VOLP
Dynamic LOW Peak Voltage
(Note 9)
VCC = 1.8 V, CL = 30 pF, VIH = VCC, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = VCC, VIL = 0 V
0.25
0.6
V
VCC = 3.3 V, CL = 30 pF, VIH = VCC, VIL = 0 V
0.8
VOLV
Dynamic LOW Valley Voltage
(Note 9)
VCC = 1.8 V, CL = 30 pF, VIH = VCC, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = VCC, VIL = 0 V
0.25
0.6
V
VCC = 3.3 V, CL = 30 pF, VIH = VCC, VIL = 0 V
0.8
VOHV
Dynamic HIGH Valley Voltage
(Note 10)
VCC = 1.8 V, CL = 30 pF, VIH = VCC, VIL = 0 V
VCC = 2.5 V, CL = 30 pF, VIH = VCC, VIL = 0 V
1.5
1.9
V
VCC = 3.3 V, CL = 30 pF, VIH = VCC, VIL = 0 V
2.2
9. Number of outputs defined as “n”. Measured with “n1” outputs switching from HIGHtoLOW or LOWtoHIGH. The remaining output is
measured in the LOW state.
10. Number of outputs defined as “n”. Measured with “n1” outputs switching from HIGHtoLOW or LOWtoHIGH. The remaining output is
measured in the HIGH state.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
CIN Input Capacitance
COUT
Output Capacitance
CPD Power Dissipation Capacitance
11. VCC = 1.8 V, 2.5 V or 3.3 V; VI = 0 V or VCC.
Condition
Note 11
Note 11
Note 11, 10 MHz
Typical
6
7
20
Unit
pF
pF
pF
http://onsemi.com
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