- 您现在的位置：买卖IC网 > PDF目录24615 > 9147F-12 (INTEGRATED DEVICE TECHNOLOGY INC) PROC SPECIFIC CLOCK GENERATOR, PDSO48 PDF资料下载
参数资料
| 型号： | 9147F-12 |
| 厂商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分类： | 时钟产生/分配 |
| 英文描述： | PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 封装： | 0.300 INCH, SSOP-48 |
| 文件页数： | 7/9页 |
| 文件大小： | 497K |
| 代理商： | 9147F-12 |
7
ICS9147-12
Pins 1 and 2 on the ICS9147-12 serves as dual signal
functions to the device. During initial power-up, it acts as an
input pin. The logic level (voltage) that is present on this pin
at this time is read and stored into a 4-bit internal data latch.
At the end of Power-On reset, (see AC characteristics for
timing values), the device changes the mode of operations
for this pin to an output function. In this mode the pin
produces the specified buffered clocks to external loads.
To program (load) the internal configuration register for this
pin, a resistor is connected to either the VDD (logic 1) power
supply or the GND (logic 0) voltage potential. A 10
Kilohm(10K) resistor is used to provide both the solid CMOS
programming voltage needed during the power-up
programming period and to provide an insignificant load on
the output clock during the subsequent operating period.
Shared Pin Operation -
Input/Output Pins
Fig. 1
Figs. 1 and 2 show the recommended means of implementing
this function. In Fig. 1 either one of the resistors is loaded
onto the board (selective stuffing) to configure the devices
internal logic. Figs. 2a and b provide a single resistor loading
option where either solder spot tabs or a physical jumper
header may be used.
These figures illustrate the optimal PCB physical layout
options. These configuration resistors are of such a large
ohmic value that they do not effect the low impedance clock
signals. The layouts have been optimized to provide as little
impedance transition to the clock signal as possible, as it
passes through the programming resistor pad(s).
相关PDF资料 |
PDF描述 |
|---|---|
| 9147F-16 | PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 9148BF-36LF | 83.3 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 9148CF-10LF | 48 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
| 051-328-6909229 | RF Coaxial Connectors |
| 9148F-02LF | 66.6 MHz, PROC SPECIFIC CLOCK GENERATOR, PDSO48 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| 9148 | 功能描述:电线导管 HF3C 3/4 BLK 3/4 NPT W/NUT RoHS:否 制造商:Panduit 类型:Slotted SideWall Open finger design wiring cut 材料:Polypropylene 颜色:Light Gray 大小: 最大光束直径: 抗拉强度: 外部导管宽度:25 mm 外部导管高度:25 mm |
| 91481 | 制造商:FCI-CONNECTOR 制造商全称:FCI connector 功能描述:LATCH-N LOK CONNECTOR KIT |
| 914810 | 制造商:ERNI Electronics 功能描述:Conn Terminal Block PL 14 POS Screw RA |
| 91481-021 | 功能描述:I/O 连接器 1x4 Cable Plug Connector Kit RoHS:否 制造商:Hirose Connector 产品:Plugs 系列:DH 端口数量: 位置/触点数量:51 节距:1 mm 触点电镀: 触点材料: 型式:Male 电流额定值:0.5 A 安装风格:Cable 端接类型:IDC 颜色: 安装角: |
| 91481-021LF | 功能描述:I/O 连接器 1x4 Cable Plug Connector Kit RoHS:否 制造商:Hirose Connector 产品:Plugs 系列:DH 端口数量: 位置/触点数量:51 节距:1 mm 触点电镀: 触点材料: 型式:Male 电流额定值:0.5 A 安装风格:Cable 端接类型:IDC 颜色: 安装角: |
发布紧急采购，3分钟左右您将得到回复。