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Datasheet> All Categories > logic> logic> PI74ALVCH16271A
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PI74ALVCH16271A

Description
Multiplexer And Demux/Decoder, ALVC/VCX/A Series, 12-Func, 1 Line Input, 2 Line Output, True Output, CMOS, PDSO56, 0.240 INCH, PLASTIC, TSSOP-56
Categorylogic    logic   
File Size244KB，6 Pages
ManufacturerPericom Semiconductor Corporation (Diodes Incorporated)
Websitehttps://www.diodes.com/
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PI74ALVCH16271A Overview

Multiplexer And Demux/Decoder, ALVC/VCX/A Series, 12-Func, 1 Line Input, 2 Line Output, True Output, CMOS, PDSO56, 0.240 INCH, PLASTIC, TSSOP-56

PI74ALVCH16271A Parametric

Parameter NameAttribute value
Is it Rohs certified?incompatible
MakerPericom Semiconductor Corporation (Diodes Incorporated)
Parts packaging codeTSSOP
package instructionTSSOP, TSSOP56,.3,20
Contacts56
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresIT ALSO OPERATES AT 3.3V SUPPLY
seriesALVC/VCX/A
JESD-30 codeR-PDSO-G56
JESD-609 codee0
length14 mm
Logic integrated circuit typeMULTIPLEXER AND DEMUX/DECODER
Number of functions12
Number of entries1
Output times2
Number of terminals56
Maximum operating temperature85 °C
Minimum operating temperature-40 °C
Output characteristics3-STATE
Output polarityTRUE
Package body materialPLASTIC/EPOXY
encapsulated codeTSSOP
Encapsulate equivalent codeTSSOP56,.3,20
Package shapeRECTANGULAR
Package formSMALL OUTLINE, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply3.3 V
propagation delay (tpd)6.4 ns
Certification statusNot Qualified
Maximum seat height1.2 mm
Maximum supply voltage (Vsup)3.6 V
Minimum supply voltage (Vsup)2.3 V
Nominal supply voltage (Vsup)2.5 V
surface mountYES
technologyCMOS
Temperature levelINDUSTRIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formGULL WING
Terminal pitch0.5 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width6.1 mm

PI74ALVCH16271A Preview

21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
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PI74ALVCH16271
12-Bit To 24-Bit Multiplexed Bus Exchanger
with 3-State Outputs
Product Features
•
PI74ALVCH16271 is designed for low voltage operation,
V
CC
= 2.3V to 3.6V
•
Hysteresis on all inputs
•
Typical V
OLP
(Output Ground Bounce)
< 0.8V at V
CC
= 3.3V, T
A
= 25°C
•
Typical V
OHV
(Output V
OH
Undershoot)
< 2.0V at V
CC
= 3.3V, T
A
= 25°C
•
Bus Hold retains last active bus state during 3-State,
eliminating the need for external pullup resistors
•
Industrial operation at –40°C to +85°C
•
Packages available:
– 56-pin 240 mil wide plastic TSSOP (A56)
– 56-pin 300 mil wide plastic SSOP (V56)
Product Description
Pericom Semiconductor’s PI74AVC series of logic circuits are
produced using the Company’s advanced 0.35 micron CMOS
technology, achieving industry leading speed.
This 12-bit to 24-bit multiplexed bus exchanger is designed for 2.3V
to 3.6V V
CC
operation.
The PI74ALVCH16271is intended for applications in which two
separate data paths must be multiplexed onto, or demultiplexed
from, a single data path. This device is particularly suitable as an
interface between conventional DRAMs and high-speed
microprocessors
Data is stored in the internal A-to-B registers on the low-to-high
transition of the clock (CLK) input, provided clock-enable (CLKENA)
inputs are low. Proper control of these inputs allows two sequential
12-bit words to be presented as a 24-bit word on the B port.
To maximize memory access throughput, transparent latches in
the B-to-A path allow asynchronous operation. These latches
transfer data when the latch-enable (LE) inputs are low. The select
(SEL) line selects 1B or 2B data for the A outputs. Data flow is
controlled by the active-low output enables (OEA, OEB).
To ensure the high-impedance state during power up or power
down, OE should be tied to V
CC
through a pullup resistor, the
minimum value of the resistor is determined by the current-sinking
capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating
data inputs at a valid logic level.
Logic Block Diagram
1
PS8360
02/02/99
Product Pin Description
Pin Name
OE
CLK
SEL
CLKEN
A,1B,2B
GND
V
CC
Description
Output Enable Input (Active LOW)
Clock
Select (Active Low)
Clock Enable (Active Low)
3-State Outputs
Ground
Power
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
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PI74ALVCH16271
12-Bit To 24-Bit Multiplexed Bus Exchanger with 3-State Outputs
Product Pin Configuration
OEA
LE1B
2B3
GND
2B2
2B1
VCC
A1
A2
A3
GND
A4
1
2
3
4
5
6
7
8
9
10
56
55
54
53
52
51
50
49
48
47
OEB
CLKENA2
2B4
GND
2B5
2B6
VCC
2B7
2B8
2B9
GND
2B10
2B11
2B12
1B12
1B11
1B10
GND
1B9
1B8
1B7
VCC
1B6
1B5
GND
1B4
CLKENA1
CLK
Truth Tables
(1)
Output Enable
INPUTS
OEA
H
H
L
L
OEB
H
L
H
L
A
Z
Z
Active
Active
OUTPUTS
1B,2B
Z
Active
Z
Active
A5
A6
A7
A8
A9
GND
A10
A11
A12
VCC
11
56-PIN
46
A56
12
45
V56
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
A to B STORAGE (OEB = L)
INPUTS
CLKENA1
H
L
L
X
X
CLKENA2
H
X
X
L
L
CLK
X
↑
↑
↑
↑
A
X
L
H
L
H
OUTPUTS
1B
1B0
(2)
L
H
X
A
O
2B
2B0
(2)
X
X
L
H
1B1
1B2
GND
1B3
LE2B
SEL
B to A STORAGE (OEA = L)
INPUTS
LE
H
H
L
L
L
L
SEL
X
X
H
H
L
L
1B
X
X
L
H
X
X
2B
X
X
X
X
L
H
Outputs A
A
O(2)
A
O(2)
L
H
L
H
Notes:
1. H = High Signal Level, L = Low Signal Level
X = Irrelevant, Z = High Impedance
↑
= Transition, Low to High
2.
Output level before the indicated steady state input
conditions were established.
2
PS8360
02/02/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVCH16271
12-Bit To 24-Bit Multiplexed Bus Exchanger with 3-State Outputs
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature .................................................. –65°C to +150°C
Supply Voltage Range, V
CC
........................................... –0.5V to 4.6V
Input Voltage Range,V
I
:
Except I/O ports (See Note 1): ........................................ –0.5V to 4.6V
I/O ports (See Notes 1 and 2) .............................. –0.5V to V
CC
+ 0.5V
Output Voltage Range, V
O
(See Notes 1and 2) .. –0.5V to V
CC
+ 0.5V
Input Clamp current, I
IK
(V
I
< 0) .............................................. –50mA
Output Clamp current, I
OK
(V
O
< 0 or V
O
> V
CC
) ................... ±50mA
Continous Output Current, I
O
(V
O
= 0 to V
CC
) ........................ ±50mA
Continous Current through each V
CC
or GND ........................ ±100mA
Maximum Power Dissipation:
A package ................................................................... 1W
V package ................................................................ 1.4W
Note:
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device.
This is a stress rating only and functional operation of the
device at these or any other conditions above those
indicated in the operational sections of this specification
is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
Notes:
1. The input and output negative-voltage ratings maybe exceeded if the input
and outputclamp-current ratings are observed.
2. This value is limited to 4.6V maximum.
DC Electrical Characteristics
(Over the Operating Range, T
A
= –40°C to +85°C, V
CC
= 3.3V ± 10%)
Parame te rs
V
CC
V
IH
V
IL
V
IN
V
OUT
I
OH
De s cription
Supply Voltage
Input HIGH Voltage
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
V
CC
= 2.3V to 2.7V
V
CC
= 2.7V to 3.6V
0
0
V
CC
= 2.3V
HIGH- level Output Current
V
CC
= 2.7V
V
CC
= 3.0V
V
CC
= 2.3V
I
OL
LOW- level Output Current
V
CC
= 2.7V
V
CC
= 3.0V
Te s t Conditions
(3)
M in.
2.3
1.7
2.0
0.7
0.8
V
CC
V
CC
- 12
- 12
- 24
12
12
24
mA
V
Typ.
M ax.
3.6
Units
Input LOW Voltage
Input Voltage
Output Voltage
Note:
3. Unused control inputs must be held HIGH or LOW to prevent them from floating.
3
PS8360
02/02/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVCH16271
12-Bit To 24-Bit Multiplexed Bus Exchanger with 3-State Outputs
DC Electrical Characteristics
-Continued
(Over the Operating Range, T
A
= -40ºC to +85ºC, V
CC
= 3.3V ± 10%
Parame te rs
I
OH
= - 10
0µΑ
I
OH
= - 6mΑ
V
OH
I
OH
= - 12mΑ
I
OH
= - 24mΑ
I
OL
= 10
0µΑ
I
OL
= 6mΑ
V
OL
I
OL
= 12mΑ
I
OL
= 24mΑ
I
I
V
I
= V
CC
or GND
V
I
= 0.7V
V
I
= 1.7V
I
I
(Hold)
V
I
= 0.8V
V
I
= 2.0V
V
I
= 0 to 3.6V
(3)
I
OZ(4)
I
CC
∆Ι
CC
C
I
Control Inputs
C
IO
A or B Ports
V
O
= V
CC
or GND
V
I
= V
CC
or GND, I
O
= 0
O ne input at V
CC
- 0.6V,
O ther inputs at V
CC
or
GND
V
I
= V
CC
or GND
V
O
= V
CC
or GND
V
IL
= 0.7V
V
IL
= 0.7V
V
IL
= 0.8V
V
IL
= 0.8V
V
IH
= 1.7V
V
IH
= 1.7V
V
IH
= 2.0V
V
IH
= 2.0V
V
IH
= 2.0V
Te s t Conditions
V
CC(1)
Min. toMax.
2.3V
2.3V
2.7V
3.0V
3.0V
Min. to Max.
2.3V
2.3V
2.7V
3.0V
3.6V
2.3V
3.0V
3.6V
3.6V
3.6V
3V to 3.6V
3.3V
3.3V
3.5
9
45
- 45
75
- 75
±500
±10
40
750
pF
µΑ
M in.
V
CC
- 0.2
2.0
1.7
2.2
2.4
2.0
0.2
0.4
0.7
0.4
0.55
±5
V
Typ.
(2)
M ax.
Units
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at V
CC
= 3.3V, +25ºC ambient and maximum loading.
3. Bus hold maximum dynamic current required to switch the input from one state to another
4. For I/O ports, the I
OZ
includes the input leakage current.
4
PS8360
02/02/99
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
21098765432121098765432109876543210987654321210987654321098765432109876543212109876543210987654321098765432121098765432109876543210987654321
PI74ALVCH16271
12-Bit To 24-Bit Multiplexed Bus Exchanger with 3-State Outputs
Timing Requirements over Operating Range
Parame te rs
f
CLOCK
t
W
D e s cription
Clock frequency
Pulse duration,
CLK high or Low
A before CLK
↑
t
SU
Setup time
B before LE
CLK EN before CLK
↑
A after CLK
↑
t
H
Hold time
B after LE
CLK EN after CLK
↑
∆
t/
∆v
(1)
Input Transition
Rise or Fall
V
C
= 2.5 V ± 0.2 V
C
M in.
0
3.3
2.6
1.7
1.6
0.6
0.9
1.0
0
10
M ax.
130
V
C
= 2.7 V
C
M in.
0
3.3
2.1
1.5
1.3
0.6
0.9
0.9
0
10
M ax.
130
V
C
= 3.3 V ± 0.3 V
C
M in.
0
3.3
1.7
1.3
1.0
0.7
1.1
0.9
0
10
ns/V
ns
M ax.
130
Units
Mhz
Notes:
1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
Switching Characteristics over Operating Range
(1)
Parame te rs
f
MAX
t
PD
t
PD
t
PD
t
PD
t
EN
t
DIS
CLK
B
LE
SEL
OEB or OEA
OEB or OEA
B
A
A
A
B or A
B or A
From
(INPUT)
To
(OUTPUT)
V
CC
= 2.5V ± 0.2V
M in.
(2)
130
1.0
1.0
1.0
1.1
1.0
1.4
6.2
5.3
6.0
6.4
6.0
5.4
M ax.
V
CC
= 2.7V
M in.
(2)
130
5.0
4.7
5.9
6.2
6.1
4.6
M ax.
V
CC
= 3.3V ± 0.3V
M in.
(2)
130
1.0
1.4
1.4
1.3
1.0
1.7
4.3
4.0
4.8
5.2
5.1
4.2
ns
M ax.
(2)
Units
MHz
Notes:
1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
5
PS8360
02/02/99
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PI74ALVCH16271A Related Products

PI74ALVCH16271A PI74ALVCH16271V
Description Multiplexer And Demux/Decoder, ALVC/VCX/A Series, 12-Func, 1 Line Input, 2 Line Output, True Output, CMOS, PDSO56, 0.240 INCH, PLASTIC, TSSOP-56 Multiplexer And Demux/Decoder, ALVC/VCX/A Series, 12-Func, CMOS, PDSO56, 0.300 INCH, 0.635 MM PITCH, PLASTIC, SSOP-56
Is it Rohs certified? incompatible incompatible
Maker Pericom Semiconductor Corporation (Diodes Incorporated) Pericom Semiconductor Corporation (Diodes Incorporated)
Parts packaging code TSSOP SSOP
package instruction TSSOP, TSSOP56,.3,20 SSOP, SSOP56,.4
Contacts 56 56
Reach Compliance Code unknown unknown
ECCN code EAR99 EAR99
series ALVC/VCX/A ALVC/VCX/A
JESD-30 code R-PDSO-G56 R-PDSO-G56
JESD-609 code e0 e0
length 14 mm 18.415 mm
Logic integrated circuit type MULTIPLEXER AND DEMUX/DECODER MULTIPLEXER AND DEMUX/DECODER
Number of functions 12 12
Number of terminals 56 56
Maximum operating temperature 85 °C 85 °C
Minimum operating temperature -40 °C -40 °C
Output characteristics 3-STATE 3-STATE
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code TSSOP SSOP
Encapsulate equivalent code TSSOP56,.3,20 SSOP56,.4
Package shape RECTANGULAR RECTANGULAR
Package form SMALL OUTLINE, THIN PROFILE, SHRINK PITCH SMALL OUTLINE, SHRINK PITCH
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED
power supply 3.3 V 3.3 V
Certification status Not Qualified Not Qualified
Maximum seat height 1.2 mm 2.794 mm
Maximum supply voltage (Vsup) 3.6 V 3.6 V
Minimum supply voltage (Vsup) 2.3 V 2.3 V
Nominal supply voltage (Vsup) 2.5 V 3.3 V
surface mount YES YES
technology CMOS CMOS
Temperature level INDUSTRIAL INDUSTRIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form GULL WING GULL WING
Terminal pitch 0.5 mm 0.635 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED
width 6.1 mm 7.5 mm

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