参数资料
型号: CY28346ZC
厂商: Silicon Laboratories Inc
文件页数: 2/19页
文件大小: 0K
描述: IC CLOCK DIFF OUT CK408 56TSSOP
标准包装: 35
类型: *
PLL:
输入: 晶体
输出: 时钟
电路数: 1
比率 - 输入:输出: 1:19
差分 - 输入:输出: 无/是
频率 - 最大: 200MHz
除法器/乘法器: 是/无
电源电压: 3.135 V ~ 3.465 V
工作温度: 0°C ~ 70°C
安装类型: *
封装/外壳: *
供应商设备封装: *
包装: *
CY28346
......................Document #: 38-07331 Rev. *C Page 10 of 19
PCI_STP# Assertion
The PCI_STP# signal is an active LOW input used for
synchronous stopping and starting the PCI outputs while the
rest of the clock generator continues to function. The set-up
time for capturing PCI_STP# going LOW is 10 ns (tsetup) (see
Figure 14.) The PCI_F (0:2) clocks will not be affected by this
pin if their control bits in the SMBus register are set to allow
them to be free running.
Table 7. Cypress Clock Power Management Truth Table
B0b6
B1b6
PD#
CPU_STP# Stoppable CPUT
Stoppable
CPUC
Non-Stop CPUT
Non-Stop CPUC
0
1
Running
0
1
0
Iref x6
Running
0
1
Iref x2
LOW
Iref x2
LOW
0
Iref x2
LOW
Iref x2
LOW
0
1
Running
0
1
0
Hi-Z
Running
0
1
0
1
Hi-Z
0
1
0
Hi-Z
1
0
1
Running
1
0
1
0
Iref x6
Running
1
0
1
Hi-Z
1
0
Hi-Z
1
Running
1
0
Hi-Z
Running
1
0
1
Hi-Z
1
0
Hi-Z
CPU_STP#
CPUT
CPUC
CPUT
CPUC
Figure 10. CPU_STP# Deassertion Waveform
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