PERICOM PI74ALVCH162244

PI74ALVCH162244
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16-Bit Buffer Driver
with 3-STATE Outputs
Product Features
Product Description
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Pericom Semiconductor’s PI74ALVCH series of logic circuits
are produced in the Company’s advanced 0.5 micron CMOS
technology, achieving industry leading speed.
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PI74ALVCH162244 is designed for low voltage operation
VCC = 2.3V to 3.6V
Hysteresis on all inputs
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
Output ports have equivalent 26Ω series resistors:
no external resistors are required
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:
– 48-pin 240 mil wide plastic TSSOP (A)
– 48-pin 300 mil wide plastic SSOP (V)
The PI74ALVCH162244 is an non-inverting 16-bit buffer/driver
designed for low voltage 2.3V to 3.6V VCC operation.
The buffer/driver is designed specifically to improve both the
performance and density of 3-STATE memory address drivers,
clock drivers, and bus-oriented receivers and transmitters.
The device can be used as four 4-bit buffers, two 8-bit buffers, or
one 16-bit buffer. It provides inverting outputs and symmetrical
active-low output-enable (OE) inputs.
To ensure the high-impedance state during power up or power
down, OE should be tied to VCC through a pullup resistor in
which the minimum value is determined by the current-sinking
capability of the driver.
The PI74ALVCH162244 has “Bus Hold” which retains the data
input’s last state whenever the data input goes to high-impedance preventing “floating” inputs and eliminating the need for
pullup/down resistors.
Logic Block Diagram
1OE
3OE
1A0
1Y0
3A0
3Y0
1A1
1Y1
3A1
3Y1
1A2
1Y2
3A2
3Y2
1A3
1Y3
3A3
3Y3
2OE
4OE
2A0
2Y0
4A0
4Y0
2A1
2Y1
4A1
4Y1
2A2
2Y2
4A2
4Y2
2A3
2Y3
4A3
4Y3
1
PS8092B
07/14/00
PI74ALVCH162244
16-Bit Buffer Driver with 3-STATE Outputs
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Product Pin Description
Pin Name
OE
Ax
Yx
GND
VCC
Truth Table(1)
Description
3-State Output Enable Inputs (Active LOW)
Inputs
3-State Outputs
Ground
Power
Inputs
Outputs
OE
Ax
Yx
L
H
H
L
L
L
H
X
Z
Notes:
1. H = High Signal Level
L = Low Signal Level
X = Don't Care or Irrelevant
Z = High Impedance
Product Pin Configuration
2
PS8092B
07/14/00
PI74ALVCH162244
16-Bit
Buffer
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.
DC Electrical Characteristics (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Te s t Conditions (1)
D e s cription
VCC
Supply Voltage
VIH(3)
Input HIGH Voltage
VIL(3)
Input LO W Voltage
VIN(3)
Input Voltage
0
VCC
VOUT(3)
O utput Voltage
0
VCC
VOH
VOL
IOH(3)
IOL(3)
O utput
HIGH
Voltage
O utput
LO W
Voltage
O utput
HIGH
Current
O utput
LO W
Current
M in.
Typ.(2)
Parame te rs
2.3
VCC = 2.3V to 2.7V
1.7
VCC = 2.7V to 3.6V
2.0
M ax.
3.6
VCC = 2.3V to 2.7V
0.7
VCC = 2.7V to 3.6V
0.8
IOH = - 100mA, VCC = Min. to Max.
VCC - 0.2
VIH = 1.7V, IOH = - 4mA, VCC = 2.3V
1.9
VIH = 1.7V, IOH = - 6mA, VCC = 2.3V
1.7
VIH = 2.0V, IOH = - 6mA, VCC = 2.3V
2.4
VIH = 2.0V, IOH = - 8mA, VCC = 2.7V
2.0
VIH = 2.0V, IOH = - 12mA, VCC = 3.0V
2.0
V
IOL = 100mA, VIL = Min. to Max.
0.2
VIL = 0.7V, IOL = 4mA, VCC = 2.3V
0.4
VIL = 0.7V, IOL = 6mA, VCC = 2.3V
0.55
VIL = 0.8V, IOL = 6mA, VCC = 3.0V
0.55
VIL = 0.8V, IOL = 12mA, VCC = 3.0V
0.8
VCC = 2.3V
-6
VCC = 2.7V
-8
VCC = 3.0V
- 12
VCC = 2.3V
6
VCC = 2.7V
8
VCC = 3.0V
12
3
Units
PS8092B
mA
07/14/00
PI74ALVCH162244
16-Bit Buffer Driver with 3-STATE Outputs
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DC Electrical Characteristics-Continued (Over the Operating Range, TA = –40°C to +85°C, VCC = 3.3V ±10%)
Te s t Conditions (1)
Parame te rs De s cription
IIN
Input Current
Typ.(2)
M ax.
VIN = VCC or GND, VCC = 3.6V
Input
Hold
Current
IIN (HOLD)
M in.
±5
VIN = 0.7V, VCC = 2.3V
45
VIN = 1.7V, VCC = 2.3V
- 45
VIN = 0.8V, VCC = 3.0V
75
VIN = 2.0V, VCC = 3.0V
- 75
VIN = 0 to 3.6V, VCC = 3.6V
±500
IOZ
Output Current (3- STATE Outputs)
VOUT = VCC or GND, VCC = 3.6V
±10
ICC
Supply Current
VCC = 3.6V, IOUT = 0mA,
VIN = GND or VCC
40
DICC
Supply Current per Input
@ TTL HIGH
VCC = 3.0V to 3.6V
One Input at VCC - 0.6V
Other Inputs at VCC or GND
750
Control Inputs
CI
Outputs
CO
mA
3.5
VIN = VCC or GND, VCC = 3.3V
Data Inputs
Units
6
VO = VCC or GND, VCC = 3.3V
pF
7
Notes:
1. For conditions shown as Max. or Min., 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. 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)
To
(OUTPUT)
tPD
A
tEN
tDIS
VCC = 2.5V ± 0.2V
VCC = 2.7V
M in.(2)
VCC = 3.3V ± 0.3V
M in.(2)
M ax.
M ax. M in.(2)
Y
1.0
4.9
4.7
1.0
4.2
OE
Y
1.0
6.8
6.7
1.0
5.6
OE
Y
1.0
6.3
5.7
1.0
5.5
0
10
10
0
10
M ax.
Units
ns
D e s cription
Dt/Dv(3)
Input Transition Rise or Fall
0
ns/V
Notes:
1. See test circuit and waveforms.
2. Minimum limits are guaranteed but not tested on Propagation Delays.
3. Recommended operating condition.
Operating Characteristics, TA = 25ºC
Parame te r
Te s t Conditions
CPD Power Dissipation Outputs Enabled
Capacitance
Outputs Disabled
CL = 50pF,
f = 10 MHz
VCC = 2.5V ± 0.2V
VCC = 3.3V ± 0.3V
Typical
16
18
4
6
Units
pF
Pericom Semiconductor Corporation
2380 Bering Drive • San Jose, CA 95131 • 1-800-435-2336 • Fax (408) 435-1100 • http://www.pericom.com
4
PS8092B
07/14/00