Home >> 9250-08 Search >> Integrated Circuit Systems 9250-08 Datasheet

9250-08 Datasheet

ICS9250-08

No Preview Available !

9250-08 pdf
Integrated
Circuit
Systems, Inc.
ICS9250-08
Frequency Generator & Integrated Buffers for Celeron & PII/III
Recommended Application:
BX, Appollo Pro 133 type of chip set.
Output Features:
• 3 - CPUs @2.5V, up to 150MHz.
• 17 - SDRAM @ 3.3V, up to 150MHz.
• 7 - PCI @3.3V
• 2 - IOAPIC @ 2.5V
• 1 - 48MHz, @3.3V fixed.
• 1 - 24MHz @ 3.3V
• 2 - REF @3.3V, 14.318MHz.
Features:
• Up to 150MHz frequency support
• Support power management: CPU, PCI, stop and Power
down Mode form I2C programming.
• Spread spectrum for EMI control (0 to -0.5%, ± 0.25%).
• Uses external 14.318MHz crystal
Key Specifications:
• CPU – CPU: <175ps
• CPU – PCI: min = 1ns max = 4ns
• PCI – PCI: <250ps
• SDRAM - SDRAM: <500ps
Block Diagram
Pin Configuration
VDDREF
*FS2/REF1
*PCI_STOP/REF0
GND
X1
X2
VDDPCI
*MODE/PCICLK_F
**FS3/PCICLK0
GND
PCICLK1
PCICLK2
PCICLK3
PCICLK4
VDDPCI
PCICLK5
BUFFERIN
SDRAM11
SDRAM10
VDDSDR
SDRAM9
SDRAM8
GND
SDRAM15
SDRAM14
GND
{I 2 C
SDATA
SCLK
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
56 VDDLIOAPIC
55 IOAPIC0
54 IOAPIC_F
53 GND
52 CPUCLK_F
51 CPUCLK1
50 VDDLCPU
49 CPUCLK2
48 GND
47 CPU_STOP#
46 SDRAM_F
45 VDDSDR
44 SDRAM0
43 SDRAM1
42 GND
41 SDRAM2
40 SDRAM3
39 SDRAM4
38 SDRAM5
37 VDDSDR
36 SDRAM6
35 SDRAM7
34 GND
33 SDRAM12
32 SDRAM13
31 VDD48
30 24MHz/FS0*
29 48MHz/FS1*
56-Pin SSOP
* Internal Pull-up Resistor of 240K to 3.3V on indicated inputs
** Internal Pull-down resistor of 240K to GND on indicated inputs.
PLL2
X1 XTAL
X2 OSC
÷2
STOP
FS[3:0]
MODE
CPU_STOP#
PCI_STOP#
{I 2 C
SCLK
SDATA
BUFFERIN
PLL1
Spread
Spectrum
LATCH
POR
4
Control
Logic
Config.
Reg.
STOP
PCI
CLOCK
DIVDER
STOP
STOP
48MHz
24MHz
IOAPIC_F
IOAPIC0
REF [1:0]
2
CPUCLK_F
1
CPUCLK [2:1]
2
6 PCICLK [5:0]
PCICLK_F
16 SDRAM [15:0]
SDRAM_F
Functionality
FS3 FS2 FS1 FS0
1111
1 1 10
110 1
1 10 0
10 11
10
10
100 1
10 0 0
0 111
0 110
0 10 1
0 100
00 11
00 10
000 1
0000
CPU
(MHz)
133
124
150
140
105
110
115
120
100.3
133
112
103
66.8
83.3
75
124
PCICLK (MHz)
33.3 (CPU/4)
31 (CPU/4)
37.5 (CPU/4)
35 (CPU/4)
35 (CPU/3)
36.67 (CPU/3)
38.33 (CPU/3)
40.00 (CPU/3)
33.43 (CPU/3)
44.33 (CPU/3)
37.33 (CPU/3)
34.33 (CPU/2)
33.40 (CPU/2)
41.65 (CPU/2)
37.5 (CPU/2)
41.33 (CPU/2)
9250-08 Rev H 10/8/99
Third party brands and names are the property of their respective owners.
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.
Free Datasheet http://www.datasheet4u.com/
Integrated Circuit Systems
Integrated Circuit Systems



   PDF Click to Download PDF File

   PDF View for Mobile





Related Start with 9250-0*

[ 9250-08 Integrated Circuit Systems ]     [ 9250-08 Integrated Circuit Systems ]    


Searches related to 9250-08 part

Find Chips CBC RS online RUTRONIK 24
Component Distributors NexGen Digital Richardson RFPD ICC
Beyond Components NAC PEI-Genesis Powell Electronics
TME Ameya 360 Power & Signal Datasheets360
Freelance Electronics Sager Electronics Terminals & Connectors TTI

0  1  2  3  4  5  6  7  8  9  A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z
@ 2014 :: DatasheetsPDF.com :: Semiconductors Datasheet Search & Download Site