ETC PI74ALVCHT16835

PI74ALVCHT16835
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18-Bit Universal Bus Driver
with 3-State Outputs
Product Features
Product Description
• PI74ALVCHT16835 is designed for low-voltage operation
Pericom Semiconductor’s PI74ALVCH series of logic circuits are
produced using the Company’s advanced 0.5 micron CMOS
technology, achieving industry leading speed.
• VCC = 2.3V to 3.6V
• 5V I/O Tolerant Inputs and Outputs
• Typical VOLP (Output Ground Bounce)
< 0.8V at VCC = 3.3V, TA = 25°C
• Typical VOHV (Output VOH Undershoot)
< 2.0V at VCC = 3.3V, TA = 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 (A)
– 56-pin 300 mil wide plastic SSOP (V)
– 56-pin 173 mil wide plastic TVSOP (K)
The 18-bit PI74ALVCHT16835 universal bus driver is designed
for 2.3V to 3.6V VCC operation.
Data flow from A to Y is controlled by Output Enable (OE). The
device operates in the transparent mode when LE is HIGH. The A
data is latched if CLK is held at a high or low logic level. If LE is
LOW, the A-bus is stored in the latch/flip-flop on the low-to-high
transition of CLK. When OE is HIGH, the outputs are in the highimpedance state.
To ensure the high-impedance state during power up or power
down, OE should be tied to VCC 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
OE
CLK
27
30
28
LE
A1
54
1D
C1
3
Y1
CLK
TO 17 OTHER CHANNELS
1
PS8547C
12/12/01
PI74ALVCHT16835
18-Bit Universal Bus Driver
with 3-State Outputs
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Product Pin Description
Pin Name
Truth Table(1)†
D e s cription
OE
O utput Enable Input (Active LO W)
LE
Latch Enable
CLK
Clock Input
A
Data Input
Y
Data O utput
GND
Ground
VCC
Power
Inputs
Product Pin Configuration
NC
1
56
GND
NC
2
55
NC
Y1
3
54
A1
GND
4
53
GND
Y2
5
52
A2
Y3
6
51
A3
VCC
7
50
VCC
Y4
8
49
A4
Y5
9
48
A5
Y6
10
47
A6
GND
11
46
GND
Y7
12
45
A7
Y8
13
44
A8
Y9
14
43
A9
Y10
15
42
A10
Y11
16
41
A11
56-Pin
A, V
Y12
17
40
A12
GND
18
39
GND
Y13
19
38
A13
Y14
20
37
A14
Y15
21
36
A15
VCC
22
35
VCC
Y16
23
34
A16
Y17
24
33
A17
GND
25
32
GND
Y18
26
31
A18
OE
27
30
CLK
LE
28
29
GND
OE
LE
CLK
A
Outputs
Y
H
X
X
X
Z
L
H
X
L
L
L
H
X
H
H
L
L
↑
L
L
L
L
↑
H
H
L
L
H
X
Yo(2)
L
L
L
X
Yo(3)
Note:
1. H = High Signal Level
L = Low Signal Level
Z = High Impedance
↑ = Transition LOW-to-HIGH
X= Irrelevant
2. Output level before the indicated steady-state input
conditions were established, provided that CLK is high
before LE goes low.
3. Output level before the indicated steady-state input
conditions were established.
2
PS8547C
12/12/01
PI74ALVCHT16835
18-Bit Universal Bus Driver
with 3-State Outputs
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Maximum Ratings
(Above which the useful life may be impaired. For user guidelines, not tested.)
Storage Temperature ............................................... –65°C to +150°C
Ambient Temperature with Power Applied ............... –40°C to +85°C
Input Voltage Range, VIN ....................................... –0.5V to VCC +0.5V
Output Voltage Range, VOUT ................................ –0.5V to VCC +0.5V
DC Input Voltage ....................................................... –0.5V to +5.0V
DC Output Current .................................................................. 100 mA
Power Dissipation ....................................................................... 1.0W
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.
Recommended Operating Conditions(1)
Parame te rs
De s cription
VCC
Supply Voltage
VIH
Input HIGH Voltage
VIL
Te s t Conditions
M in.
2.3
Input LOW Voltage
VCC = 2.3V to 2.7V
1.7
VCC = 2.7V to 3.6V
2.0
Typ.
M ax.
3.6
VCC = 2.3V to 2.7V
0.7
VCC = 2.7V to 3.6V
0.8
VIN
Input Voltage
0
5.5
VOUT
Output Voltage
0
5.5
IOH
IOL
TA
High- level Output Current
Low- level Output Current
VCC = 2.3V
- 12
VCC = 2.7V
- 12
VCC = 3.0V
- 24
VCC = 2.3V
12
VCC = 2.7V
12
VCC = 3.0V
24
Operating Free- Air Temperature
–40
Units
85
V
mA
°C
Note:
1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
3
PS8547C
12/12/01
PI74ALVCHT16835
18-Bit Universal Bus Driver
with 3-State Outputs
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DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ± 10%)
Parame te rs
VCC(1)
Te s t Conditions
IOH = - 100 µA
IOH = - 6 mA
VOH
IOH = - 12 mA
IOH = - 24 mA
VOL
IOL = 12 mA
IOL = 24 mA
II
IOFF
VIH = 1.7V
2.3V
2.0
VIH = 1.7V
2.3V
1.7
VIH = 2.0V
2.7V
2.2
VIH = 2.0V
3.0V
2.4
VIH = 2.0V
3.0V
2.0
II
M ax.
Units
V
Min. to Max.
0.2
VIL = 0.7V
2.3V
0.4
VIL = 0.7V
2.3V
0.7
VIL = 0.8V
2.7V
0.4
VIL = 0.8V
3.0V
0.55
3.6V
±5
VI = VCC or GND
VIN or VOUT = 5.5V
10
VI = 0.8V
(Hold)(3)
Typ.(2)
Min. to Max. VCC - 0.2
IOL = 100 µA
IOL = 6 mA
M in.
3.0V
VI = 2.0V
75
- 75
VI = 0 to 3.6V
3.6V
±500
IOZ(4)
VO = VCC or GND
3.6V
±10
ICC
VI = VCC or GND
3.6V
40
∆ICC
One input at VCC - 0.6V, Other inputs at VCC or GND
3V to 3.6V
750
IO = 0
CI Control Inputs VI = VCC or GND
3.3V
3.5
Data Input
VO = VCC or GND
3.3V
6
CO Outputs
VO = VCC or GND
3.3V
7
µA
pF
Notes:
1. For Max. or Min. conditions, use appropriate value specified under Electrical Characteristics for the applicable device type.
2. Typical values are at VCC = 3.3V, +25°C 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 IOZ includes the input leakage current.
4
PS8547C
12/12/01
PI74ALVCHT16835
18-Bit Universal Bus Driver
with 3-State Outputs
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Timing Requirements over Operating Range
Parame te rs
VCC = 2.5 V ± 0.2V
De s cription
VCC = 2.7V
VCC = 3.3V ± 0.3V
M in.
M ax.
M in.
M ax.
M in.
M ax.
0
150
0
150
0
150
fCLOCK
Clock frequency
tW Pulse
Duration
LE high
3.3
3.3
3.3
CLK high or low
3.3
3.3
3.3
Data before CLK↑
2.2
2.1
1.7
tSU Setup time Data before LE↓ , CLK High
1.9
1.6
1.5
Data before LE↓ , CLK Low
1.3
1.1
1
Data after CLK↑
0.6
0.6
0.7
Data after LE↓ , CLK High or Low
1.4
1.7
1.4
tH Hold time
∆t/∆v(1)
Input Transition Rise or Fall
0
10
0
10
Units
MHz
ns
0
10
ns/V
Note:
1. Unused control inputs must be held HIGH or LOW to prevent them from floating.
Switching Characteristics Over Operating Range(1)
Parame te rs
From
(Input)
VCC = 2.5V ± 0.2V
To (Output)
M in.(2)
fMAX
M ax.
150
VCC = 2.7V
M in.(2)
VCC = 3.3 V ± 0.3V
M in.(2)
M ax.
150
Units
M ax.
150
MHz
tPD
A
Y
1
4.4
4.2
1
3.6
tPD
LE
Y
1.3
5.9
4.9
1.3
4.2
tPD
CLK
Y
1.4
5.6
5.2
1.4
4.5
tEN
OE
Y
1.4
5.6
5.6
1.1
4.6
tDIS
OE
Y
1
5.2
4.3
1.3
3.9
ns
(3)
TSK
—
0.5
Notes:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Skew between any two outputs of the same package switching in the dame direction. This parameter is not production tested.
Switching Characteristics, from 0ºC to 65ºC, CL = 50pF
VCC = 3.3V ± 0.15V
Parame te r
From (Input)
To (Output)
M in.
M ax.
Units
tPD
CLK
Y
1.7
4.5
ns
Operating Characteristics, TA = 25ºC
VCC = 2.5V ± 0.2V
Parame te r
CPD Power Dissipation
Capacitance
Typical
Te s t Conditions
Outputs Enabled
Outputs Disabled
CL = 50pF,
f = 10 MHz
VCC = 3.3V ± 0.3V
Units
26
31
12
14
pF
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
5
PS8547C
12/12/01
PI74ALVCHT16835
18-Bit Universal Bus Driver
with 3-State Outputs
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56-Pin 240-Mil TSSOP (A) Package
56
.236
.244
1
.547
.555
6.0
6.2
13.9
14.1
1.20
SEATING PLANE
.047
Max.
.004 0.09
.008 0.20
.0197
BSC
0.50
.007
.011
0.17
0.27
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
0.45 .018
0.75 .030
.002
.006
0.05
0.15
.319 BSC
8.1
56-Pin 300-Mil SSOP (V) Package
56
.291
.299
7.39
7.59
.396
.416
10.06
10.56
Gauge Plane
.010 0.25
1
.720 18.29
.730 18.54
.02
.04
0.51
1.01
.015 0.381 x 45˚
.025 0.635
.008
0.20
Nom.
.110 2.79 Max
.025 BSC
0.635
X.XX DENOTES DIMENSIONS
X.XX IN MILLIMETERS
.008
.0135
0.20
0.34
0-8˚
6
.008 0.20
.016 0.40
PS8547C
12/12/01
PI74ALVCHT16835
18-Bit Universal Bus Driver
with 3-State Outputs
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56-Pin 173-Mil TVSOP (K) Package
56
.169
.177
4.30
4.50
1
.441
.449
0.45 .018
0.75 .030
.031
.041
0.80
1.05
11.20
11.40
0.09
0.20
.0035
.008
.252
BSC
6.4
SEATING
PLANE
.016
BSC
0.40
X.XX
X.XX
.002
.006
0.05
0.15
.005
.009
0.13
0.23
.047
1.20
Max.
DENOTES DIMENSIONS
IN MILLIMETERS
Ordering Information
Part
Pin-Package
PI74ALVCHT16835A
56- Pin - TSSO P
PI74ALVCHT16835K
56- Pin - TVSO P
PI74ALVCHT16835V
56- Pin - SSO P
Ope rating Range
–40ºC to 85ºC
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
7
PS8547C
12/12/01