参数资料
型号: C9821GQ
英文描述: Up to 5A ULDO linear regulator
中文描述: 单时钟驱动器| SSOP封装| 24针|塑料
文件页数: 7/18页
文件大小: 121K
代理商: C9821GQ
Direct Rambus
Plus Clock Generator
Cypress Semiconductor Corporation
525 Los Coches St.
Milpitas, CA 95035. Tel: 408-263-6300, Fax: 408-263-6571
http://www.cypress.com
Document#: 38-07092 Rev. **
05/03/2001
Page 7 of 18
APPROVED PRODUCT
C9821
Power Management Functions (Cont.)
The device is able to turn off the Rambus Channel clock to minimize power for mobile and other power-sensitive
applications. In the “clock off” mode, the device remains on while the output is disabled, allowing fast transitions
between the clock-off and clock-on states. This mode could be used in conjunction with the Nap mode of the
RDRAMs and Rambus ASIC Cell (RAC). When output clocks are in a power down mode they are driven to and held
at a logic low level by the device.
In the “power down” mode, the device is completely powered down for minimum power dissipation. This mode is
used in conjunction with the power down modes of the RDRAMs and RAC.
The device has three operating states: Normal, Clock off and Powerdown. In normal mode, the clock source is on,
and the output is enabled. In Clock off mode, the clock source is on, but the output is disabled (StopB asserted). In
powerdown mode, the device is powered down with the control signal PwrDnB equal to 0. The control signals Mult0,
Mult1, S0, S1, and S2 must be stable before power is applied to the device, and can only be changed in power-down
mode (PwrDnB=0).
Power Management Modes
State
PwrDnB
1
1
0
StopB
1
0
X
Normal
Clock Off
Powerdown
Table 6: Control Signals for Clock Source States
Upon applying power to the device, the device can enter any state, depending on the settings of the control signals,
PwrDnB and StopB. the clock source output need not be glitch-free during state transitions.
相关PDF资料
PDF描述
C9822EQ Up to 5A ULDO linear regulator
C9827JT Up to 5A ULDO linear regulator
C9827JY Up to 5A ULDO linear regulator
C9832HT Up to 5A ULDO linear regulator
C9832HY N-CHANNEL 60V - 0.014 Ohm - 60A TO-220/TO220FP STRIPFET POWER MOSFET
相关代理商/技术参数
参数描述
C9822EQ 制造商:未知厂家 制造商全称:未知厂家 功能描述:SINGLE CLOCK DRIVER|SSOP|24PIN|PLASTIC
C98-24379-02 制造商:CPI 功能描述:
C9827H 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:High Performance Pentium 4 Clock Synthesizer
C9827HT 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:High Performance Pentium 4 Clock Synthesizer
C9827HY 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:High Performance Pentium 4 Clock Synthesizer