PI6C102 Просмотр технического описания (PDF) - Pericom Semiconductor
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PI6C102 Datasheet PDF : 11 Pages
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PI6C102
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Pin Description
Pin
Signal Name Type Qty.
Description
1
XTAL_IN
I
1 14.318 MHz crystal input
2
XTAL_OUT O
1 14.318 MHz crystal output
3,12
VSSPCI[0:1] ground 2
Ground for PCI clock outputs
4
PCICLK_F
O
1 Free running PCI clock output
5,7,8,10,11 PCICLK[1:5] O
5 PCI clock outputs, TTL comatible 3.3V
6,9
VDDPCI [0:1] power 2
Power for PCI clock outputs
21
VDDCORE 1 power
1
Isolated power for core
20
VSSCORE 1 ground
1
Isolated ground for core
15
SEL100/66#
I
1 Select pin for enabling 100 MHz or 66 MHz H = 100 MHz. L = 66 MHz
16
SEL
I
1 Test or Active Mode Select
17
PWRDWN#
I
1 Powers down device when held LOW
18
CPUSTOP#
I
1 Stops CPU clocks LOW if held LOW
19
PCISTOP#
I
1 Stops PCI clocks LOW if held LOW
22
VSSCPU
ground
1
23,24 CPUCLK[0:1] O
2
Ground for CPU outputs
CPU and Host clock outputs 2.5V
25
VDDCPU
power
1
Power for CPU outputs
26
REF
O
1 14.318 MHz clock output
27
VDDREF
power
1
Power for REF outputs
28
VSSREF
ground 1
Ground for REF outputs
Select Functions
SEL100/66# SEL
0
0
0
1
1
0
1
1
Function
Hi-Z
66 MHz active
Test Mode
100 MHz active
Clock Enable Configuration
Function
Description
Outputs
CPU [0:1] PCI[0:5], PCIF
REF
Hi-Z
Hi-Z
Hi-Z
Hi-Z
Test Mode TCLK/2
TCLK/6
TCLK
Notes:
TCLK is a test clock over driven on he XTAL_IN inpu during test mode.
CPU_STOP# PCI_STOP# PWR_DWN# CPUCLK [0:1] PCICLK[1:5] PCICLK_F Other Clocks Crystal VCO's
X
X
0
low
low
low
stopped
off
off
0
0
1
low
low
33 MHz
running
running running
0
1
1
low
33 MHz
33 MHz
running
running running
1
0
1
100/66 MHz
low
33 MHz
running
running running
1
1
1
100/66 MHz
33 MHz
33 MHz
running
running running
2
PS8164A
09/29/00
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