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參數(shù)資料
| 型號： | CDC9162 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | PC Motherboard Clock Sythesizer/Drivers with SDRAM Clock Support(PC母板時鐘合成器/驅(qū)動器(三態(tài)輸出)) |
| 中文描述： | 電腦主板時鐘Sythesizer /支持與SDRAM時鐘驅(qū)動器（電腦母板時鐘合成器/驅(qū)動器（三態(tài)輸出）） |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 211K |
| 代理商： | CDC9162 |
CDC9162
PC MOTHERBOARD CLOCK SYNTHESIZER/DRIVER
WITH 3-STATE OUTPUTS
SCAS573 – JUNE 1996
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Terminal Functions
TERMINAL
I/O
DESCRIPTION
NAME
NO.
FCCLK
33
O
3.3-V floppy controller clock output at 24 MHz
GND
3, 10, 18, 24, 30,
32, 37, 43, 44
GND
Ground
HCLK_EN
29
I
Host (CPU) clock enable
HCLK0–HCLK3
38, 39, 41, 42
O
2.5-V host (CPU) clock outputs programmable to 60 MHz or 66 MHz
IOAPIC
45
O
2.5-V IOAPIC clock output at 14.318 MHz
PCLK_EN
6
I
PCI clock enable
PCLK0–PCLK7
8, 9, 11, 12, 13,
14, 16, 17
O
3.3-V PCI clock outputs at one-half HCLK frequency
PWR_DN
28
I
Power-down enable
Reserved
19, 20, 31, 35, 36
Reserved for future use
REF0–REF2
1, 2, 47
O
3.3-V ISA reference clock output at 14.318 MHz
SEL0–SEL1
26, 27
I
Clock frequency select inputs
SBCLK
22, 23
O
3.3-V universal serial bus clock output at 48 MHz
VCC
VCCO3
VCCO2
XIN
21, 25, 34, 48
Power
3.3-V core power supply
7, 15
Power
3.3-V output power supply
40, 46
Power
2.5-V output power supply
4
I
Crystal input
XOUT
5
O
Crystal output
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
CC
–0.5 V to 4.6 V
–0.5 V to 4.6 V
–0.5 V to 3.6 V
–0.5 V to 4.6 V
–0.5 V to V
CC
+ 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
CCO3
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V
CCO2
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, V
I
(see Note 1)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the high state or power-off state, V
O
Current into any output in the low state, I
O
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, I
IK
(V
I
< 0)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, I
OK
(V
O
< 0)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum power dissipation at T
A
= 55
°
C (in still air) (see Note 2)
Storage temperature range, T
stg
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. The input and output negative-voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
2. The maximum package power dissipation is calculated using a junction temperature of 150
°
C and a board trace length of 750 mils.
For more information, refer to the Package Thermal Considerationsapplication note in the ABT Advanced BiCMOS Technology Data
Book literature number SCBD002.
. . . . . . .
24 mA
–18 mA
–50 mA
1.2 W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
–65
°
C to 150
°
C
P
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