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參數(shù)資料
| 型號(hào)： | ICS9159M-06 |
| 英文描述： | Frequency Generator and Buffer for Pentium™ Systems |
| 文件頁(yè)數(shù)： | 3/7頁(yè) |
| 文件大?。?/td> | 228K |
| 代理商： | ICS9159M-06 |
3
ICS9159-05
Pin Descriptions
Note:
1. Internally pulled-up
PIN
NUMBER
8, 20, 26
PIN NAME
TYPE
DESCRIPTION
VDD
PWR
Power for logic, CPU and fixed frequency output buffers.
XTAL or external reference frequency input. This input includes XTAL load
capacitance and feedback bias for a 4-20 MHz XTAL, normally 14.318 MHz.
XTAL output which includes XTAL load capacitance.
1
X1
IN
2
X2
OUT
3, 11, 23, 17
GND
PWR
Ground for logic, CPU and fixed frequency output buffers.
Processor clock outputs which are a multiple of the input reference frequency as
shown in the table.
Frequency multiplier select pins. See table below. These inputs have internal pull-
up devices.
Early CPU clock. Transition precedes CPU clocks.
6, 7, 9
CPU(0:2)
OUT
4, 5
FS(0:1)
IN
10
ECPU
OUT
15, 16, 18,
19,21, 22
12
BUS(0:5)
OUT
Bus clock outputs are fixed at 1/2 the PCLK frequency.
DOZE#
1
IN
Doze mode control. Reduces CPU and BUS clock frequencies by 1/2 when low.
BUS select for BSEL = 0, BUS = CPU/2
for BSEL = 1, BUS = CPU
Stop Clock. Stops all CPU clock outputs and forces them to a logic low level
synchronously with their next low level transition.
12 MHz fixed clock (with 14.318 MHz input).
13
BSEL#
1
IN
14
STOP#
1
24
KEYBD
OUT
25
DISK
OUT
24 MHz fixed clock (with 14.318 MHz input).
REF is a buffered copy of the crystal oscillator or reference input clock,
nominally 14.31818 MHz.
27, 28
REF (0:1)
OUT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ICS9159M-07 | Frequency Generator for NexGen⑩ Nx586 Systems |
| ICS9159M-13 | Frequency Generator and Integrated Buffer for PENTIUM™ |
| ICS9159M-14 | Frequency Generator and Integrated Buffer for PENTIUM⑩ |
| ICS9159M-20 | Frequency Generator for SIS551X and SIS6205 Chip Set Systems |
| ICS9159CM-14 | Frequency Generator and Integrated Buffer for PENTIUM⑩ |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICS9159M-07 | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:Frequency Generator for NexGen⑩ Nx586 Systems |
| ICS9159M-13 | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:Frequency Generator and Integrated Buffer for PENTIUM™ |
| ICS9159M-14 | 制造商:ICS 功能描述: |
| ICS9159M-20 | 制造商:ICS 制造商全稱(chēng):ICS 功能描述:Frequency Generator for SIS551X and SIS6205 Chip Set Systems |
| ICS9159N-05 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:CPU System Clock Generator |
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