参数资料
型号: XRT8001ID-F
厂商: Exar Corporation
文件页数: 48/48页
文件大小: 0K
描述: IC WAN T1/E1 DUAL 18SOIC
标准包装: 20
类型: 时钟/频率发生器
PLL:
主要目的: 以太网(WAN),T1/E1
输入: 时钟
输出: 时钟
电路数: 1
比率 - 输入:输出: 1:2
差分 - 输入:输出: 无/无
频率 - 最大: 16.384kHz
电源电压: 3.3 V ~ 5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 18-SOIC(0.295",7.50mm 宽)
供应商设备封装: 18-SOIC
包装: 管件
其它名称: 1016-1358-5
XRT8001
9
Rev. 1.01
CSB
SCLK
SDI
R/W A0
A1
A2
A3
0
A6
D0
D1
D2
D3
D4
D5
D6
D7
D0
D1
D2
D3
D4
0
SDO
High Z
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Notes:
A4 and A5 are always “0”.
R/W = “1” for “Read” Operations
R/W = “0” for “Write” Operations
- Denotes a “don’t care” value
Simplified Interface Option
The user can simplify the design of the circuitry
connecting to the Microprocessor Serial Interface by
tying both the SDO and SDI pins together, and reading
data from and/or writing data to this “combined” signal.
This simplification is possible because only one of
these signals are active at any given time. The inactive
signal will be tri-stated.
Figure 6. Microprocessor Serial Interface Data Structure
Write Operation
Once the last address bit (A3) has been clocked into
the SDI input, the “Write” operation will proceed through
an idle period, lasting three SCLK periods. Prior to the
rising edge of SCLK Cycle # 9 (see Figure 6) the user
must begin to apply the 8-bit data word, that he/she
wishes to write to the Microprocessor Serial Interface,
onto the SDI input pin. The Microprocessor Serial
Interface will latch the value on the SDI input pin, on the
rising edge of SCLK. The user must apply this word (D0
through D7) serially, in ascending order with the LSB
first.
相关PDF资料
PDF描述
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