74VCXH162373T [ETC]
LATCH|DUAL|8-BIT|VCX-CMOS|TSSOP|48PIN|PLASTIC ;
| 型号： | 74VCXH162373T |
| 厂家： | 
ETC |
| 描述： | LATCH|DUAL|8-BIT|VCX-CMOS|TSSOP|48PIN|PLASTIC 逻辑集成电路 光电二极管 驱动 |
| 文件： | 总10页 (文件大小：85K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
74VCXH162373
LOW VOLTAGE 16-BIT D-TYPE LATCH (3-STATE)
WITH 3.6V TOLERANT INPUTS AND OUTPUTS
PRELIMINARY DATA
■
■
3.6VTOLERANT INPUTS ANDOUTPUTS
HIGH SPEED:
PD =3.3 ns (MAX.)atVCC = 3.0 to3.6V
PD =4.5 ns (MAX.)atVCC = 2.3 to2.7V
t
t
■
■
POWER-DOWN PROTECTIONON INPUTS
AND OUTPUTS
T
(TSSOP48 Package)
SYMMETRICAL OUTPUT IMPEDANCE:
|IOH| = IOL = 12 mA (MIN) at VCC = 3.0V
|IOH| = IOL = 8 mA (MIN) at VCC =2.3V
26Ω SERIERESISTORSIN OUTPUTS
OPERATING VOLTAGERANGE:
VCC (OPR)= 1.8V to 3.6V
ORDER CODES :
74VCXH162373T
■
■
PIN CONNECTION
■
PIN AND FUNCTION COMPATIBLEWITH
74 SERIES16373
■
■
LATCH-UPPERFORMANCE EXCEEDS300mA
ESDPERFORMANCE:
HBM >2000V; MM > 200V
DESCRIPTION
The VCXH162373 is a low voltage CMOS 16-BIT
D-TYPE LATCH with 3 STATE OUTPUTS NON
INVERTING fabricatedwith sub-micron silicon gate
and five-layer metal wiring C2MOS technology.It is
ideal for low powerand very high speed 2.3 to 3.6V
applications; it can be interfaced to 3.6V signal
enviromentfor bothinputsand outputs.
These 16 bit D-Type latchs are byte controlled by
two latch enable inputs (nLE) and two output
enable inputs (OE). While the nLE input is held at
a high level, the nQ outputs will follow the data
input precisely. When the nLE is taken low, the
nQ outputs will be latched precisely at the logic
level of D input data. While the (nOE) input is low,
the nQ outputs will be in a normal logic state
(high or low logic level) and while high level the
outputs will be in a high impedance state. This
device is designed to be used with 3 state
memory address drivers, etc.
The device circuits is including 26Ω series
resistance in the outputs. These resistors permit
to reduce line noise in high speed applications.
All inputs and outputs are equipped with
protection circuits against static discharge, giving
them 2KV ESD immunity and transient excess
voltage.
1/10
December 1999
74VCXH162373
INPUT AND OUTPUT EQUIVALENT CIRCUIT
PIN DESCRIPTION
IEC LOGIC SYMBOLS
PIN No
SYMBOL NAME AND FUNCTION
1
1OE
3 State Output Enable
Input (Active LOW)
2,3,5,6,
1Q0to1Q7 3 State Outputs
8,9,11,12
13,14, 16,17, 2Q0to2Q7 3 State Outputs
19, 20, 22, 23
24
2OE
3 State Output Enable
Input (Active LOW)
25
2LE
Latch Enable Input
36,35, 33,32, 2D0 to2D7 Data Inputs
30, 29, 27, 26
47,46, 44,43, 1D0 to1D7 Data Inputs
41, 40, 38, 37
48
1LE
Latch Enable Input
Ground (0V)
4,10, 15,21,
28, 34, 39, 45
GND
7, 18, 31, 42
VCC
Positive Supply Voltage
TRUTH TABLE
INPUTS
OUTPUTS
OE
H
LE
X
D
X
X
L
Q
Z
L
L
NO CHANGE *
L
H
L
L
H
H
H
X:Don’t care
Z:Highimpedance
* Qoutput arelatchedatthe timewhen the LEinputistaken low level.
2/10
74VCXH162373
LOGIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
VCC
VI
Parameter
Value
-0.5to+ 4.6
-0.5to+ 4.6
-0.5to+ 4.6
-0.5toVCC +0.5
-50
Unit
V
Supply Voltage
DC Input Voltage
V
VO
DC Output Voltage (OFF state)
DC Output Voltage (High or Low State) (note1)
DC Input Diode Current
V
VO
V
IIK
mA
mA
mA
mA
mW
oC
IOK
DC Output Diode Current (note2)
DC Output Source/Sink Current
± 50
IO
± 50
ICC orIGND DC VCC or Ground Current Per Supply Pin
100
±
PD
Tstg
TL
Power Dissipation
400
-65to+150
300
Storage Temperature
Lead Temperature (10 sec)
oC
AbsoluteMaximum Ratingsarethose values beyond whichdamage tothe device may occur. Functional operation under these condition isnot implied.
1)IO absolute maximum ratingmustbeobserved
2)VO < GND, VO >VCC
RECOMMENDED OPERATING CONDITIONS
Symbol
VCC
Parameter
Value
2.3to3.6
-0.3to3.6
0to3.6
Unit
V
Supply Voltage
Input Voltage
VI
V
VO
Output Voltage (OFF state)
V
VO
Output Voltage (High or Low State)
0toVCC
V
IOH,IOL
IOH,IOL
Top
High or Low Level Output Current (VCC = 3.0 to 3.6V)
High or Low Level Output Current (VCC = 2.3 to 2.7V)
Operating Temperature:
12
mA
mA
oC
ns/V
±
± 8
-40to+85
0to10
dt/dv
Input Transition Rise or Fall Rate (VCC = 3.0V) (note 1)
1)VIN from0.8Vto2.0V, VCC=3.0V
3/10
74VCXH162373
DC SPECIFICATIONS
(2.7V < VCC ≤ 3.6Vunless otherwise specified)
Symbol
Parameter
Test Conditions
Value
-40 to 85 oC
Unit
VCC
(V)
Min.
Max.
VIH
VIL
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
2.0
V
V
2.7 to 3.6
0.8
VOH
2.7to3.6
2.7
I =-100 A
VCC-0.2
2.2
µ
O
VI =V
orVIL
IH
IO=-6mA
IO=-8mA
IO=-12 mA
IO=100µA
IO=6mA
IO=8mA
IO=12mA
V
3.0
2.4
3.0
2.2
VOL
Low Level Output Voltage
2.7to3.6
2.7
0.2
0.4
0.55
0.8
±5
VI =V
IH
V
orVIL
3.0
3.0
II
Input Leakage Current
Input Hold Current
2.7to3.6
VI =VCC orGND
µA
µA
I
V = 0.8V
75
I(HOLD)
I
3
VI =2V
-75
3.6
V = 0to3.6V
I
500
±
IOZ
3 State Output Leakage Current
2.7to3.6
V = VIH orVIL
I
10
±
A
µ
VO =0to3.6V
Ioff
Power Off Leakage Current
Quiescent Supply Current
0
V orVO = 0 to 3.6V
10
20
µA
I
ICC
2.7to3.6
VI =VCC orGND
A
µ
VI orVO = VCCto3.6V
20
±
I
ICC incr. per input
2.7to3.6
VIH =VCC -0.6V
750
A
µ
∆
CC
DC SPECIFICATIONS (2.3V < VCC ≤ 2.7Vunless otherwise specified)
Symbol
Parameter
Test Conditions
Value
-40 to 85 oC
Unit
VCC
(V)
Min.
Max.
VIH
VIL
High Level Input Voltage
Low Level Input Voltage
High Level Output Voltage
1.6
V
V
2.3 to 2.7
0.7
VOH
2.3to2.7
2.3
IO=-100 µA
IO=-4mA
IO=-6mA
IO=-8mA
VCC-0.2
2.0
VI =V
orVIL
IH
V
V
2.3
1.8
2.3
1.7
VOL
Low Level Output Voltage
2.3to2.7
2.3
I =100 A
0.2
0.4
0.6
µ
O
VI =V
IH
IO=6mA
IO=8mA
orVIL
2.3
II
Input Leakage Current
Input Hold Current
VI =VCC orGND
5
±
A
µ
2.3 to 2.7
I
V = 0.7V
I
45
A
µ
I(HOLD)
2.3
V = 1.7V
I
-45
IOZ
3 State Output Leakage Current
2.3to2.7
V = VIH orVIL
I
10
±
A
µ
VO =0to3.6V
VI orVO = 0to3.6V
VI =VCC orGND
Ioff
Power Off Leakage Current
Quiescent Supply Current
0
10
20
µA
ICC
2.3to2.7
A
µ
VI orVO = VCCto3.6V
20
±
4/10
74VCXH162373
o
DYNAMIC SWITCHING CHARACTERISTICS
(Ta = 25 C, Input tr = tf = 2.0ns,CL = 30pF, RL = 500Ω)
Symbol
Parameter
Test Conditions
Value
TA = 25 oC
Unit
VCC
(V)
Min. Typ. Max.
VOLP
Dynamic Low Voltage Quiet Output
(note 1, 3)
2.5
3.3
2.5
3.3
2.5
3.3
0.25
0.35
-0.25
-0.35
2.05
2.65
V =0V
V = VCC
IH
IL
V
V
V
VOLV
Dynamic Low Voltage Quiet Output
(note 1, 3)
V =0V
IL
V = VCC
IH
VOHV Dynamic High Voltage Quiet Output
(note 2, 3)
V =0V
IL
V = VCC
IH
1)Number ofoutputs defined as”n”. Measured with”n-1”outputs switchingfrom HIGHtoLOWor LOW toHIGH. The remaining output ismeasured in
theLOW state.
2)Number ofoutputs defined as”n”. Measured with”n-1”outputs switchingfrom HIGHtoLOWor LOW toHIGH. The remaining output ismeasured in
theHIGHstate.
3)Parameters guaranteed bydesign.
AC ELECTRICAL CHARACTERISTICS
Ω
(CL = 30 pF, RL = 500 , Input tr = t = 2.0 ns)
f
Symbol
Parameter
Test Condition
Value
-40 to 85 oC
Unit
VCC
Waveform
(V)
Min. Max.
tPLH
tPHL
Propagation Delay Time Dn to Qn
Propagation Delay Time LE to Qn
Output Enable Time
2.3to2.7
3.0to3.6
2.3to2.7
3.0to3.6
2.3to2.7
3.0to3.6
2.3to2.7
3.0to3.6
2.3to2.7
3.0to3.6
2.3to2.7
3.0to3.6
2.3to2.7
3.0to3.6
2.3to2.7
3.0to3.6
1.0
0.8
1.0
0.8
1.0
0.8
1.0
0.8
1.0
1.0
1.0
1.0
1.5
1.5
4.5
3.3
4.9
3.6
5.4
3.9
4.4
4.0
3
1
2
2
1
1
1
ns
ns
ns
ns
ns
ns
tPLH
tPHL
tPZL
tPZH
tPLZ
tPHZ
Output Disable Time
ts
th
tw
Setup Time, HIGH or LOW level Dn to
LE
Hold Time, HIGH or LOW level Dn to LE
LE Pulse Width, HIGH
ns
ns
tOSLH Output to Output Skew Time (note 1, 2)
tOSHL
0.5
0.5
1) Skewis defined astheabsolute value ofthe difference between theactual propagation delay for any twooutputs of thesame device switching inthe
same direction, either HIGHor LOW (tOSLH = |tPLHm -tPLHn|,tOSHL =|tPHLm -tpHLn|)
2) Parameter guaranteed bydesign
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
Test Conditions
Value
TA = 25 oC
Unit
VCC
(V)
Min. Typ. Max.
CIN
Input Capacitance
VIN =0VorVCC
VIN =0VorVCC
6
7
2.5or 3.3
2.5or 3.3
pF
pF
pF
COUT Output Capacitance
CPD
Power Dissipation Capacitance (note 1) 2.5or 3.3
f = 10MHz
IN
20
VIN =0VorVCC
1)CPD isdefined as thevalue ofthe IC’sinternal equivalent capacitance whichiscalculated fromthe operating current consumption without load. Average
operting current canbe obtained bythe followingequation. ICC(opr)= CPD • VCC • fIN +ICC/16 (percircuit)
5/10
74VCXH162373
TEST CIRCUIT
TEST
SWITCH
Open
6V
tPLH, tPHL
tPZL, tPLZ (VCC = 3.0 to 3.6V)
tPZL, tPLZ (VCC = 2.3 to 2.7V)
tPZH, tPHZ
2VCC
GND
CL = 30 pF or equivalent (includes jigand probe capacitance)
RL =R1 =500Ω orequivalent
RT = ZOUT ofpulse generator (typically50Ω)
WAVEFORM SYMBOL VALUES
Symbol
VCC
3.0 to 3.6V
2.7V
2.3 to 2.7V
VCC
V
IH
VM
VX
VY
1.5V
VCC/2
VOL +0.3V
VOH -0.3V
VOL + 0.15V
VOH -0.15V
6/10
74VCXH162373
WAVEFORM 1: LE TO Qn PROPAGATION DELAYS, LE MINIMUM PULSE WIDTH,
Dn TO LE SETUP AND HOLD TIMES (f=1MHz; 50% duty cycle)
7/10
74VCXH162373
WAVEFORM 2: OUTPUT ENABLE AND DISABLE TIMES
(f=1MHz; 50% duty cycle)
WAVEFORM 3: PROPAGATION DELAY TIME (f=1MHz; 50% duty cycle)
8/10
74VCXH162373
TSSOP48 MECHANICAL DATA
mm
inch
TYP.
DIM.
MIN.
TYP.
MAX.
1.1
MIN.
MAX.
0.433
0.006
0.374
0.011
0.0079
0.496
0.325
0.244
A
A1
A2
b
0.05
0.85
0.17
0.09
12.4
7.95
6.0
0.10
0.9
0.15
0.95
0.27
0.20
12.6
8.25
6.2
0.002
0.335
0.0067
0.0035
0.408
0.313
0.236
0.004
0.354
c
D
12.5
8.1
0.492
0.319
0.240
E
E1
e
6.1
0.5 BSC
4o
0.0197 BSC
4o
K
0o
8o
0o
8o
L
0.50
0.60
0.70
0.020
0.024
0.028
A2
A
K
L
b
e
A1
E
c
D
E1
PIN 1 IDENTIFICATION
1
9/10
74VCXH162373
Information furnished isbelieved to be accurate and reliable. However, STMicroelectronics assumes no responsibility for the consequences
of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject to change without notice. Thispublication supersedes and replaces all information previously supplied. STMicroelectronics products
are not authorized for use as critical components in lifesupport devices or systems withoutexpress written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
1999 STMicroelectronics – Printed in Italy – All Rights Reserved
STMicroelectronics GROUP OF COMPANIES
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.
10/10
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