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参数资料
| 型号： | KSZ8051MLL-EVAL |
| 厂商： | Micrel Inc |
| 文件页数： | 24/48页 |
| 文件大小： | 0K |
| 描述： | BOARD EVALUATION FOR KSZ8051MLL |
| 标准包装： | 1 |
| 主要目的： | 接口，以太网 PHY |
| 嵌入式： | 否 |
| 已用 IC / 零件： | KSZ8051MLL |
| 已供物品： | 板 |
| 相关产品： | 576-3888-6-ND - TXRX PHY 10/T100 3.3V MII 48LQFP 576-3888-1-ND - TXRX PHY 10/T100 3.3V MII 48LQFP 576-3888-2-ND - TXRX PHY 10/T100 3.3V MII 48LQFP KSZ8051MLL TR-ND - TXRX PHY 10/T100 3.3V MII 48LQFP 576-3731-ND - TXRX PHY 10/T100 3.3V MII 48LQFP |
| 其它名称： | 576-3864 |
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2008 Microchip Technology Inc.
DS22060B-page 33
MCP413X/415X/423X/425X
4.0
FUNCTIONAL OVERVIEW
This Data Sheet covers a family of thirty-two Digital
Potentiometer and Rheostat devices that will be
referred to as MCP4XXX. The MCP4XX1 devices are
the Potentiometer configuration, while the MCP4XX2
devices are the Rheostat configuration.
As the Device Block Diagram shows, there are four
main functional blocks. These are:
The POR/BOR operation and the Memory Map are
discussed in this section and the Resistor Network and
SPI operation are described in their own sections. The
Device Commands commands are discussed in
4.1
POR/BOR Operation
The Power-on Reset is the case where the device is
having power applied to it from VSS. The Brown-out
Reset occurs when a device had power applied to it,
and that power (voltage) drops below the specified
range.
The devices RAM retention voltage (VRAM) is lower
than the POR/BOR voltage trip point (VPOR/VBOR). The
maximum VPOR/VBOR voltage is less then 1.8V.
When VPOR/VBOR < VDD < 2.7V, the electrical
performance
may
not
meet
the
data
sheet
specifications. In this region, the device is capable of
incrementing, decrementing, reading and writing to its
volatile memory if the proper serial command is
executed.
4.1.1
POWER-ON RESET
When the device powers up, the device VDD will cross
the VPOR/VBOR voltage. Once the VDD voltage crosses
the VPOR/VBOR voltage the following happens:
Volatile wiper register is loaded with the default
wiper value
The TCON register is loaded it’s default value
The device is capable of digital operation
4.1.2
BROWN-OUT RESET
When the device powers down, the device VDD will
cross the VPOR/VBOR voltage.
Once the VDD voltage decreases below the VPOR/VBOR
voltage the following happens:
Serial Interface is disabled
If the VDD voltage decreases below the VRAM voltage
the following happens:
Volatile wiper registers may become corrupted
TCON register may become corrupted
As the voltage recovers above the VPOR/VBOR voltage
Serial commands not completed due to a brown-out
condition may cause the memory location to become
corrupted.
4.2
Memory Map
The device memory is 16 locations that are 9-bits wide
(16x9 bits). This memory space contains four volatile
locations (see Table 4-1).
TABLE 4-1:
MEMORY MAP
4.2.1
VOLATILE MEMORY (RAM)
There are four Volatile Memory locations. These are:
Volatile Wiper 0
Volatile Wiper 1
(Dual Resistor Network devices only)
Status Register
Terminal Control (TCON) Register
The volatile memory starts functioning at the RAM
retention voltage (VRAM).
Address
Function
Memory Type
00h
Volatile Wiper 0
RAM
01h
Volatile Wiper 1
RAM
02h
Reserved
—
03h
Reserved
—
04h
Volatile TCON Register
RAM
05h
Status Register
RAM
06h-0Fh Reserved
—
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相关代理商/技术参数 |
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| KSZ8051MLLI | 功能描述:以太网 IC 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver w/ MII Support (48-LQFP, Industrial Grade) RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| KSZ8051MLLI TR | 功能描述:以太网 IC 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver w/ MII Support (48-LQFP, Industrial Grade) RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
| KSZ8051MLLI-TR | 功能描述:1/1 Transceiver Full MII 48-LQFP (7x7) 制造商:microchip technology 系列:- 包装:剪切带（CT） 零件状态:过期 类型:收发器 协议:MII 驱动器/接收器数:1/1 双工:全 接收器滞后:- 数据速率:- 电压 - 电源:1.8V，2.5V，3.3V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:48-LQFP 供应商器件封装:48-LQFP（7x7） 标准包装:1 |
| KSZ8051MNL | 功能描述:TXRX PHY 10/T100 3.3V MII 32-QFN RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:1,140 系列:AU 类型:收发器 驱动器/接收器数:1/1 规程:CAN 电源电压:5.3 V ~ 27 V 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SO 包装:管件 其它名称:935267940512AU5790D14AU5790D14-ND |
| KSZ8051MNL TR | 功能描述:以太网 IC 3.3V, 10Base-T/100Base-TX Physical Layer Transceiver w/ MII Support (32-QFN) RoHS:否 制造商:Micrel 产品:Ethernet Switches 收发器数量:2 数据速率:10 Mb/s, 100 Mb/s 电源电压-最大:1.25 V, 3.45 V 电源电压-最小:1.15 V, 3.15 V 最大工作温度:+ 85 C 封装 / 箱体:QFN-64 封装:Tray |
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