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PI74ALVCH32244 Datasheet

  • PI74ALVCH32244

  • Logic | 32-Bit Buffer/Driver with 3-State Outputs

  • 172.14KB

  • 8頁

  • ETC

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PI74ALVCH32244
32-Bit Buffer/Driver
with 3-State Outputs
Product Features
鈥?/div>
PI74ALVCH32244 is designed for low voltage operation
鈥?/div>
V
CC
= 2.3V to 3.6V
鈥?/div>
Typical V
OLP
(Output Ground Bounce)
<0.8V at V
CC
= 3.3V, T
A
= 25擄C
鈥?/div>
Typical V
OHV
(Output V
OH
Undershoot)
>2.0V at V
CC
= 3.3V, T
A
= 25擄C
鈥?/div>
Bus Hold retains last active bus state during 3-State
eliminating the need for external pullup resistors
鈥?/div>
Industrial operation at 聳40擄C to +85擄C
鈥?/div>
Packages available:
聳 96-ball, 13.5mm x 5.5mm x 1.4mm low profile fine
pitch ball grid array, LFBGA (NB)
Product Description
Pericom Semiconductor聮s PI74ALVCH series of logic circuits
are produced using the Company聮s advanced 0.5 micron CMOS
technology, achieving industry leading speed.
The PI74ALVCH32244 is an non-inverting 32-bit buffer/driver
designed for low voltage 2.3V to 3.6V V
CC
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 eight 4-bit buffers, four 8-bit buffers, or
one 32-bit buffer. It provides true 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 V
CC
through a pullup resistor in which
the minimum value 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.
Truth Table
(1)
Inputs
nOE
L
L
H
nAx
H
L
X
Outputs
nYx
H
L
Z
Product Pin Description
Pin Name
nO E
nAx
nYx
GND
V
CC
D e s cription
3- State O utput Enable Inputs (Active LO W)
Inputs
3- State O utputs
Ground
Power
Note:
1. H = High Signal Level, L = Low Signal Level
X = Don鈥檛 Care or Irrelevant, Z = High Impedance
1
PS8436
08/24/01

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