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PDF AV9154A-60 Data sheet ( Hoja de datos )
| Número de pieza | AV9154A-60 | |
| Descripción | OPTi Notebook Frequency Generator | |
| Fabricantes | Integrated Circuit Systems | |
| Logotipo |  |
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Integrated
Circuit
Systems, Inc.
AV9154A-60
OPTi Notebook Frequency Generator
General Description
The AV9154A-60 is a low cost frequency generator designed
for general purpose PC and disk drive applications. Its CPU
clocks provide all necessary frequencies for 286, 386 and
486 systems, including support for the latest speeds of
processors. The standard devices use a 14.318 MHz crystal to
generate the CPU and peripheral clocks for integrated desktop
and notebook motherboards.
Features
• Compatible with 286, 386, and 486 CPUs
• Up to 66.6 MHz (-60) CPU clocks
• All loop filter components internal
• 3.3V and 5V operation
• 16-pin 150-mil SOIC
• Power-down control of CPU clock
The AV9154A-60 is specifically designed for use with OPTi
core logic chip sets.
The AV9154A-60 can operate at 5.0V±10% or 3.3V±10%,
but the CPU frequencies are limited (see the asterisks on the
selection tables on page three) during 3.3V operation. The
parts have two power-down pins. One shuts off the CPU clock
to a low state when the power-down pin is taken high, and the
other turns off the 14.318 MHz output in the same manner.
Applications
Computer Motherboards: The AV9154A-60 replaces crystals
and oscillators, saving board space, component cost, part
count and inventory costs. It produces switchable CPU clock
and up to four fixed clocks to drive floppy disk,
communications, super I/O, bus and/or keyboard devices. The
small package and 3.3V operation is perfect for handheld
computers.
Block Diagram
9154-60 Rev B 05/30/97
ICS reserves the right to make changes in the device data identified in this
publication without further notice. ICS advises its customers to obtain the latest
version of all device data to verify that any information being relied upon by the
customer is current and accurate.
1 page  
AV9154A-60
Electrical Characteristics at 3.3V
Operating VDD =+3.0V to +3.7V, TA=0°C to 70°C unless otherwise stated
PARAMETER
Input Low Voltage
Input High Voltage
Input Low Current
Input High Current
Output Low Voltage1
Output High Voltage1
Supply Current
Output Low Current1
Output High Current1
Output Frequency Change over
Supply and Temperature1
Input Capacitance1
Load Capacitance1
Supply Current, lowest
Short Circuit Current1
SYMBOL
VIL
VIH
IIL
IIH
VOL
VOH
IDD
IOL
IOH
Fd
Ci
CL
IDDL
ISC
DC Characteristics
TEST CONDITIONS
VIN=0V
VIN=VDD
IOL=6mA
IOH=-4mA
Note 2, no load
VOL=0.2VDD
VOH=0.7VDD
With respect to typical
frequency
Except X1, X2
Pins X1, X2
When powered-down
MIN
-
0.7VDD
-5
-5
-
0.85VDD
-
12
-
-
-
-
-
-
TYP
-
-
-
-
0.05VDD
0.94VDD
15
22
-11
0.002
-
20
14
30
MAX
0.2VDD
-
5
5
0.1VDD
-
27
-
-6.5
0.01
10
-
-
-
UNITS
V
V
µA
µA
V
V
mA
mA
mA
%
pF
pF
mA
mA
Note:
1. Parameter is guaranteed by design and characterization. Not 100% tested in production.
2. All clocks on AV9154A-60 running at highest possible frequencies.
5
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