PI74ALVCH16524VE [PERICOM]
Registered Bus Transceiver, ALVC/VCX/A Series, 1-Func, 18-Bit, True Output, CMOS, PDSO56, 0.300 INCH, PLASTIC, SSOP-56;型号: | PI74ALVCH16524VE |
厂家: | PERICOM SEMICONDUCTOR CORPORATION |
描述: | Registered Bus Transceiver, ALVC/VCX/A Series, 1-Func, 18-Bit, True Output, CMOS, PDSO56, 0.300 INCH, PLASTIC, SSOP-56 光电二极管 |
文件: | 总7页 (文件大小:508K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
PI74ALVCH16524
18-Bit Registered Bus Transceiver
With 3-State Outputs
Product Description
Product Features
Pericom Semiconductors PI74ALVCH series of logic circuits are
produced using the Companys advanced 0.5 micron CMOS
technology, achieving industry leading speed.
• PI74ALVCH16524 is designed for low voltage operation
• V = 2.3V to 3.6V
CC
• Typical V
(Output Ground Bounce)
OLP
The PI74ALVCH16524 data flow in each direction is controlled
by output-enable (OEAB and OEBA) and clock-enable
(CLKENBA) inputs. For the A-to-B data flow, the data flows
through a single buffer. The B-to-A data can flow through a four-
stage pipeline register path, or through a single register path,
depending on the state of the select (SEL) input.
< 0.8V at V = 3.3V, T = 25°C
CC
A
• Typical V
(Output V Undershoot)
OH
OHV
< 2.0V at V = 3.3V, T = 25°C
CC
A
• 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:
Data is stored in the internal registers on the low-to-high
transition of the clock (CLK) input, provided that the appropriate
CLKENBA input is low. The B-to-A data transfer is synchronized
with CLK.
56-pin 240 mil wide plastic TSSOP (A)
56-pin 300 mil wide plastic SSOP (V)
To ensure the high-impedance state during power up or power
down, OE should be tied to Vcc through a pull-up resistor; the
minimum value of the resistor is determined by the current-sinking
capability of the driver.
The PI74ALVCH16524 has Bus Hold which retains the data
inputs last state whenever the data input goes to high-impedance
preventing floating inputs and eliminating the need for pullup/
down resistors.
Logic Block Diagram
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PI74ALVCH16524
18-Bit Registered Bus Transceiver
with3-StateOutputs
ProductPinDescription
Truth Table(1) B to A Storage (OEBA = L)
Inputs
Pin Name
CLKEN
SEL
Description
Outputs
A
Clock Enable Input (Active LOW)
Select (Active LOW)
Clock Input (Active HIGH)
Data I/O
CLKENBA
CLK
SEL
X
B
X
L
CLK
Ax
H
L
L
L
L
X
A
0
H
L
H
Bx
Data I/O
GND
VCC
Ground
H
H
L
Power
L
L§
H§
L
H
ProductPinConfiguration
Note:
1. H = High Signal Level
L = Low Signal Level
Z = High Impedance
GND
OEAB
A1
GND
SEL
B1
1
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
2
↑ = LOW-to-HIGH Transition
3
Output level before the indicated steady-state input
conditions were established.
§ Four positive CLK edges are needed to propagate
data from B to A when SEL is low.
GND
A2
GND
B2
4
5
A3
B3
6
V
V
CC
B4
CC
A4
7
8
B5
A5
A6
9
B6
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56-Pin
A,V
GND
A7
GND
B7
A8
B8
B9
A9
B10
B11
B12
GND
B13
B14
B15
VCC
B16
B17
GND
B18
CLK
GND
A10
A11
A12
GND
A13
A14
A15
V
CC
A16
A17
GND
A18
OEBA
CLKENBA
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PI74ALVCH16524
18-Bit Registered Bus Transceiver
with3-StateOutputs
Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
StorageTemperature .................................................. 65°Cto+150°C
SupplyVoltageRange,V
.................................................... 0.5Vto4.6V
Note:
CC
Stresses greater than those listed under MAXIMUM
RATINGS may cause permanent damage to the device.
Thisisastressratingonlyandfunctionaloperationofthe
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.
InputVoltageRange,V :Except
I
(1)
I/O ports .................................................................................. 0.5Vto4.6V
(1,2)
I/O ports
................................................................... 0.5VtoV +0.5V
CC
(1,2)
Output Voltage Range, V
.................................. 0.5VtoV +0.5V
CC
O
Input Clamp current, I (V <0) ................................................ 50mA
IK
I
OutputClampcurrent, I (V <0)........................................... 50mA
OK
O
Continous Output Current, I ................................................... ±50mA
O
Continous Current through each V or GND ........................ ±100mA
CC
MaximumPowerDissipation:
A package ........................................................................................ 1W
V package ..................................................................................... 1.4W
Notes:
1. The input and output negative-voltage ratings maybe exceeded if the input and
outputclamp-current ratings are observed.
2. Thisvalueislimitedto4.6Vmaximum.
Recommended Operating Conditions(1)
Parameters
Description
Supply Voltage
Test Conditions
Min.
2.3
Typ.
Max. Units
V
CC
3.6
V
= 2.3V to 2.7V
= 2.7V to 3.6V
= 2.3V to 2.7V
= 2.7V to 3.6V
1.7
CC
V
Input HIGH Voltage
Input LOW Voltage
IH
V
CC
2.0
V
CC
0.7
0.8
V
V
IL
V
CC
V
Input Voltage
0
0
V
CC
IN
V
OUT
Output Voltage
V
CC
V
= 2.3V
= 2.7V
= 3.0V
= 2.3V
= 2.7V
= 3.0V
12
12
24
12
CC
I
High-level Output Current
Low-level Output Current
V
CC
OH
V
CC
mA
V
CC
I
V
CC
12
OL
V
CC
24
T
Operating Free-Air Temperature
Input Transition Rise or Fall
40
85
°C
A
(2)
∆t/∆v
10
ns/V
Note:
1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
2. See test circuit and waveforms.
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PI74ALVCH16524
18-Bit Registered Bus Transceiver
with3-StateOutputs
DC Electrical Characteristics (Over the Operating Range, TA = 40°C to +85°C, VCC = 3.3V ± 10%)
(1)
(2)
Parameters
Test Conditions
V
CC
Min.
-0.2
Typ.
Max. Units
I
= -100 µA
Min. to Max.
2.3V
V
CC
OH
I
OH
= -6 MA
V
= 1.7V
= 1.7V
= 2.0V
= 2.0V
= 2.0V
2.0
IH
V
2.3V
1.7
2.2
2.4
2.0
IH
V
OH
I
OH
= -12 mA
V
2.7V
IH
V
3.0V
IH
I
OH
= -24 mA
= 100 µA
= 6 mA
V
3.0V
V
IH
I
OL
Min. to Max.
2.3V
0.2
I
OL
V
IL
= 0.7V
= 0.7V
= 0.8V
= 0.8V
0.4
V
OL
V
IL
2.3V
0.7
I
OL
= 12 mA
= 24 mA
V
IL
2.7V
0.4
I
OL
V
IL
3.0V
0.55
±5
I
I
V = V or GND
3.6V
I
CC
V = 0.7V
45
-45
75
I
2.3V
3.0V
V = 1.7V
I
(3)
I (Hold)
I
V = 0.8V
I
V = 2.0V
I
-75
µA
V = 0 to 3.6V
3.6V
3.6V
±500
±10
40
I
(4)
I
V = V or GND
O CC
OZ
I
CC
V = V or GND
I = 0
O
3.6V
I
CC
∆I
One input at V - 0.6V, Other inputs at V or GND
3V to 3.6V
3.3V
750
pF
CC
CC
CC
C Control Inputs V = V or GND
3
7
I
I
CC
C
A or B ports V = V or GND
3.3V
pF
IO
O
CC
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device typ e.
2. Typical values are at V = 3.3V, +25°C ambient and maximum loading.
CC
3. Bus Hold maximum dynamic current required to switch the input from one state to another.
4. For I/O ports, the I includes the input leakage current.
OZ
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PI74ALVCH16524
18-Bit Registered Bus Transceiver
with3-StateOutputs
Timing Requirements over Operating Range
V
CC
= 2.5V ± 0.2V
V
= 2.7V
V
= 3.3V ± 0.3V
CC
CC
Parameters
Description
Clock frequency
Units
Min.
Max.
Min. Max.
Min.
Max.
f
0
120
0
125
0
150
MHz
CLOCK
t
Pulse
W
CLK high or low
3.2
3.2
3.0
Duration
B Data before CLK↑
SEL before CLK↑
1.5
2.7
2.7
1.0
0.5
0.1
1.2
2.4
2.6
0.6
0.2
0.1
1.1
2.1
2.0
1.2
0.8
0.3
t
SU
Setup
time
ns
CLKENBA before CLK↑
B Data after CLK↑
SEL after CLK↑
t Hold
H
time
CLKENBA after CLK↑
Switching Characteristics Over Operating Range(1)
V
= 2.5V ± 0.2V
V
= 2.7V
V = 3.3V ± 0.V
CC
CC
CC
From
(Input)
To
(Output)
Parameters
Units
(2)
(2)
(2)
Min.
Max. Min.
125
Max. Min.
Max.
f
120
150
MHz
MAX
t
A
B
A
3.9
6.1
3.8
6.2
3.2
5.2
PD
t
PD
CLK
OEAB or
OEBA
1.0
1.0
ns
t
A or B
A or B
6.1
6.3
6.1
5.4
5.1
4.9
EN
OEAB or
OEBA
t
DIS
Notes:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
Operating Characteristics, T = 25ºC
A
V
CC
= 2.5V ± 0.2V
V
= 3.3V ± 0.3V
CC
Parameter
Test Conditions
Units
Typical
Outputs Enabled
C
Power Dissipation
Capacitance
C = 50pF
L
f = 10 MHz
PD
160
pF
Outputs Disabled
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PI74ALVCH16524
18-Bit Registered Bus Transceiver
with3-StateOutputs
ParameterMeasurement Information
= 2.5V ±0.2V
V
CC
LoadCircuit
Test
S1
Ω
tpd
Open
Ω
tPLZ/ PZL
t
2 x VCC
GND
tPHZ/ PZH
t
VoltageWaveformsSetup andHoldTimes
VoltageWaveformsPulseDuration
VoltageWaveformsEnableand DisableTimes
VoltageWaveformsPropagationDelayTimes
Figure1. LoadCircuitandVoltageWaveforms
Notes:
A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All inputs pulses are supplied by generators having the following characteristics: PRR ≤10 MHz, Z = 50Ω, t ≤ 2ns, t ≤ 2ns.
O
r
f
D. The outputs are measured one at a time with one transition per measurement.
E. t
F. t
and t
and t
are the same as t .
PLZ
PHZ
dis
are the same as t
.
ten
PZL
PZH
G. t
and t are the same as t .
PHL pd
PLH
.
PS8447A
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PI74ALVCH16524
18-Bit Registered Bus Transceiver
with3-StateOutputs
ParameterMeasurement Information
= 2.7V and 3.3V ±0.3V
V
CC
LoadCircuit
Test
S1
Ω
t
Open
6V
pd
Ω
t
t
PLZ/ PZL
t
t
GND
PHZ/ PZH
VoltageWaveformsSetup andHoldTimes
VoltageWaveformsPulseDuration
VoltageWaveformsEnableand DisableTimes
VoltageWaveformsPropagationDelayTimes
Figure2. LoadCircuitandVoltageWaveforms
Notes:
A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All inputs pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z = 50Ω, t ≤ 2 ns, t ≤ 2 ns.
O
r
f
D. The outputs are measured one at a time with one transition per measurement.
E. t
F. t
and t
and t
are the same as t .
PLZ
PHZ
dis
are the same as t
.
ten
PZL
PZH
G. t
and t are the same as t .
PHL pd
PLH
.
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
PS8447A
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