- 您現(xiàn)在的位置：買(mǎi)賣(mài)IC網(wǎng) > PDF目錄366628 > C9706AY ST92141 - 8/16 BIT MCU FOR 3-PHASE AC MOTOR CONTROL PDF資料下載
參數(shù)資料
| 型號(hào)： | C9706AY |
| 英文描述： | ST92141 - 8/16 BIT MCU FOR 3-PHASE AC MOTOR CONTROL |
| 中文描述： | CPU系統(tǒng)時(shí)鐘發(fā)生器| SSOP封裝| 48PIN |塑料 |
| 文件頁(yè)數(shù)： | 3/19頁(yè) |
| 文件大小： | 248K |
| 代理商： | C9706AY |
第1頁(yè)第2頁(yè)當(dāng)前第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)第17頁(yè)第18頁(yè)第19頁(yè)
C9706
Clock Generator for VIA VT8371/Athlon (K7) Chipset Systems
Approved Product
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07041 Rev. **
05/02/2001
Page 3 of 19
Power on Bi-Directional Pins
Power Up Condition:
Pins 7, 8, 25, 26, and 48, are Power up bi-directional pins and are used for different features in this device (see Pin
description, Page 2). During power-up, these pins are in input mode (see Fig 2, below), therefore, they are
considered
input select pins internal to the IC. After a settling time, the Selection data is latch into internal control registers and these
pins become toggling clock outputs.
-
Hi-Z Inputs
Toggle Outputs
Power Supply
Ramp
Select Data is latched into register then pin becomes clock output signal.
VDD Rail
S0 / REF1
S1 / PCI1
S2 / 48 MHZ
MODE/PCI0
S3/24_48 MHz
Strapping Resistor Options for pins with internal
Pull-ups:
The power up bidirectional pins have a large value pull-
up each (250K
)
, therefore, a selection “1” is the
default. If the system uses a slow power supply (over
3mS settling time), then
it is recommended
to use an
external Pullup (Rup) in order to insure a high selection.
In this case, the designer may choose one of two
configurations, see Fig. 3A and Fig. 3B.
Fig. 3A represents an additional pull up resistor 50K
connected from the pin to the power line, which allows a
faster pull to a high level.
If a selection “0” is desired, then a jumper is placed on
JP1 to a 5K
resistor as implemented as shown in
Fig.4A. Please note the selection resistors (Rup, and
Rdn
)
are placed before the Damping resistor (Rd)
close to the pin.
Fig. 3B represent a single resistor 10K
connected to a
3 way jumper, JP2. When a “1” selection is desired, a
jumper is placed between leads1 and 3. When a “0”
selection is desired, a jumper is placed between leads 1
and 2.
Load
Load
Fig.3A
Fig.3B
Vdd
Vdd
Rup
50K
Rd
IMI C9706
Bidirectional
JP1
JUMPER
JP2
3 Way Jumper
Rsel
10K
Rd
IMI C9706
Bidirectional
Rdn
5K
Fig. 2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| C9726AY | ST92141 - 8/16 BIT MCU FOR 3-PHASE AC MOTOR CONTROL |
| C9801CY | Hex buffer |
| C9805CYB | Quad line receivers |
| C9811X2AYB | Up to 5A ULDO linear regulator |
| C9812DYB | Up to 5A ULDO linear regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| C9714 | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:100 MHz Clock Generator with SSCG and Power Management for Mobile Application |
| C9714AT | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:100 MHz Clock Generator with SSCG and Power Management for Mobile Application |
| C9714AY | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:100 MHz Clock Generator with SSCG and Power Management for Mobile Application |
| C9716J | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:100 MHz Clock Generator with SSCG and Power Management for Mobile Application |
| C9716JT | 制造商:未知廠家 制造商全稱(chēng):未知廠家 功能描述:100 MHz Clock Generator with SSCG and Power Management for Mobile Application |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。