ICS9248BF-195 IDT, Integrated Device Technology Inc, ICS9248BF-195 Datasheet - Page 14

• Manufacturer Part Number: ICS9248BF-195
• Description: IC FREQ GENERATOR/BUFFER 48-SSOP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: Frequency Generatorr

Specifications of ICS9248BF-195

• Input: Crystal
• Output: Clock
• Frequency - Max: 137MHz
• Voltage - Supply: 3.135 V ~ 3.465 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 48-SSOP
• Frequency-max: 137MHz
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 9248BF-195

0375E—12/15/08
ICS9248-195
Notes:
1. All timing is referenced to the Internal CPUCLK (defined as inside the ICS9248 device.)
2. PCI_STOP# is an asynchronous input, and metastable conditions may exist. This signal is required to be synchronized
3. All other clocks continue to run undisturbed.
4. CLK_STOP# is shown in a high (true) state.
PCI_STOP# Timing Diagram
PCI_STOP# is an asynchronous input to the ICS9248-195. It is used to turn off the PCICLK clocks for low power
operation. PCI_STOP# is synchronized by the ICS9248-195 internally. The minimum that the PCICLK clocks are
enabled (PCI_STOP# high pulse) is at least 10 PCICLK clocks. PCICLK clocks are stopped in a low state and started
with a full high pulse width guaranteed. PCICLK clock on latency cycles are only three rising PCICLK clocks, off latency
is one PCICLK clock.
inside the ICS9248.
(Free-running)
CLK_STOP#
PCI_STOP#
PCICLK_F
PCICLK_F
CPUCLK
(Internal)
(Internal)
PCICLK
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