TABLE
參數(shù)資料
型號(hào): XRT81L27IV-F
廠商: Exar Corporation
文件頁(yè)數(shù): 9/30頁(yè)
文件大?。?/td> 0K
描述: IC LIU EI 7CH 3.3V 128TQFP
標(biāo)準(zhǔn)包裝: 72
應(yīng)用: DECT
接口: 串行
電源電壓: 3.3V
封裝/外殼: 128-LQFP
供應(yīng)商設(shè)備封裝: 128-TQFP(14x20)
包裝: 托盤(pán)
安裝類型: 表面貼裝
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XRT81L27
SEVEN CHANNEL E1 LINE INTERFACE UNIT WITH CLOCK RECOVERY
REV. 1.1.0
15
TABLE 8: MICROPROCESSOR SERIAL INTERFACE TIMING (SEE FIGURE 5)
SYMBOL
PARAMETER
MIN.MAX.UNITS
t21
CS "Low" to Rising Edge of SCLK Setup Time
50
ns
t22
CS "High" to Rising Edge of SCLK Hold Time
20
ns
t23
SDI to Rising Edge of SCLK Setup Time
50
ns
t24
Rising Edge of SCLK to SDI Hold Time
50
ns
t25
SCLK “Low” Time
240
ns
t26
SCLK “High” Time
240
ns
t27
SCLK Period
500
ns
t28
Rising Edge of SCLK to Rising Edge of CS Hold Time
50
ns
t29
CS Inactive Time
250
ns
t30
Falling Edge of SCLK to SDO Valid Time
200
ns
t31
Falling Edge of SCLK to SDO Invalid Time
100
ns
t32
Falling Edge of SCLK or Rising Edge of CS to high Z
100
ns
t33
Rise/Fall time of SDO Output
40
ns
FIGURE 6. MICROPROCESSOR SERIAL INTERFACE DATA STRUCTURE
D0
D1
D2
D7
D6
D5
D4
D3
High Z
SDO
A0
D0
R/W
D1
A6
0
A3
A2
A1
D7
D6
D5
D4
D3
D2
SDI
1234567
89
10
11
12
13
14
15
16
SClk
CS
High Z
- Denotes a “don’t care” value
A4 and A5 are always “0”.
R/W = “1” for “Read” Operations
R/W = “0” for “Write” Operations
Notes:
- Denotes a “don’t care” value
A4 and A5 are always “0”.
R/W = “1” for “Read” Operations
R/W = “0” for “Write” Operations
Notes:
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