参数资料
型号: KSZ8993M
厂商: Micrel Inc
文件页数: 81/85页
文件大小: 0K
描述: IC SWITCH 10/100 3PORT 128PQFP
标准包装: 66
系列: *
类型: *
应用: *
安装类型: 表面贴装
封装/外壳: 128-BFQFP
供应商设备封装: 128-PQFP(14x20)
包装: 托盘
产品目录页面: 1081 (CN2011-ZH PDF)
其它名称: 576-1037
Micrel, Inc.
KS8993M/ML/MI
April 2005
82
M9999-041205
Reset Timing
As long as the stable supply voltages to reset high timing (minimum of10ms) are met, there is no power
sequencing requirement for the KS8993M supply voltages (1.8V, 3.3).
It is recommended to wait 100sec after the de-assertion of reset before starting programming on the managed
interface.
The reset timing requirement is summarized in the following figure and table.
Figure 23. Reset Timing
Parameter
Description
Min
Max
Units
tsr
Stable supply voltages to reset high
10
ms
tcs
Configuration setup time
50
ns
tch
Configuration hold time
50
ns
trc
Reset to strap-in pin output
50
us
Table 26. Reset Timing Parameters
Reset Circuit Diagram
Micrel recommends the following discrete reset circuit as shown in Figure 24 when powering up the
KS8893M/ML/MI device. For the application where the reset circuit signal comes from another device (e.g., CPU,
FPGA, etc), we recommend the reset circuit as shown in Figure 25.
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KSZ8993ML-EVAL 功能描述:以太网开发工具 KSZ8993ML Evaluation Board RoHS:否 制造商:Micrel 产品:Evaluation Boards 类型:Ethernet Transceivers 工具用于评估:KSZ8873RLL 接口类型:RMII 工作电源电压: