Rev. 1.01 Symbol Parameter Min. Typ. Max. Units Condition V IL Input Low Level 0.8 V IH Input High Level 2.0 V OL Output Low Level (C" />
參數(shù)資料
型號: XRT8001IP-F
廠商: Exar Corporation
文件頁數(shù): 44/48頁
文件大小: 0K
描述: IC WAN CLOCK E1/E1 DUAL 18PDIP
產(chǎn)品變化通告: XRT obsolescence 05/Mar/2012
標(biāo)準(zhǔn)包裝: 41
類型: 時鐘/頻率發(fā)生器
PLL:
主要目的: 以太網(wǎng)(WAN),T1/E1
輸入: 時鐘
輸出: 時鐘
電路數(shù): 1
比率 - 輸入:輸出: 1:2
差分 - 輸入:輸出: 無/無
頻率 - 最大: 16.384kHz
電源電壓: 3.3 V ~ 5 V
工作溫度: -40°C ~ 85°C
安裝類型: 通孔
封裝/外殼: 18-DIP(0.300",7.62mm)
供應(yīng)商設(shè)備封裝: 18-PDIP
包裝: 管件
XRT8001
5
Rev. 1.01
Symbol
Parameter
Min.
Typ.
Max. Units
Condition
V
IL
Input Low Level
0.8
V
IH
Input High Level
2.0
V
OL
Output Low Level (CLK1, CLK2)
0.4
V
I
OL = -6.0mA
V
OH
Output High Level (CLK1, CLK2)
2.4
V
I
OL = 6.0mA
V
OL
Output Low Level (LOCKDET, SYNC)
0.4
V
I
OL = -3.0mA
V
OH
Output High Level (LOCKDET, SYNC)
2.4
V
I
OL = 3.0mA
I
IL
Input Low Current (CSB, MSB)
-150
mA
I
IH
Input High Current (CSB, MSB)
10
mA
V
IN = VCC
I
IL
Input Low Current (except CSB, MSB)
-10
mA
I
IH
Input High Current (except CSB, MSB)
10
mA
V
IN = VCC
I
CC
Operating Current
11
30
mA
3.3V, No Load, CLk1, CLK2 = 8 x 2.048MHz
20
35
mA
5V, No Load, CLk1, CLK2 = 8 x 2.048MHz
R
IN
Internal Pull-up Resistance (CSB, MSB)
50
100
150
kW
DC ELECTRICAL CHARACTERISTICS (Except Microprocessor Serial Interface)1
ABSOLUTE MAXIMUM RATINGS
Supply Range ................................................ 7V
Voltage at any Pin ........... GND -0.3V to Vcc+0.3V
Operating Temperature................. - 40°C to +85°C
Storage Temperature ................... - 40°C to +85°C
Package Dissipation ............................... 500mW
Note:
1. 5V tolerant input considerations when operating from 3.3V:
When the XRT8001 is powered at 3.3V, it can tolerate 5V-level signals via its inputs. However, the user should be aware the XRT8001
contains a “Factory-Test” Mode. This mode is enabled whenever the MSB (Master-Slave select) input pin is pulled to about 2V above
VDD.
Therefore, if the user is powering the XRT8001 at 3.3V but is applying a 5.25V signal to the MSB input pin, then it is possible that the
XRT8001 could be configured to operate in this “Factory-Test” Mode. Since all “Factory-Test” Mode registers are reset to “0”, upon
chip power, this should not be a problem for the user.
However, if the user performs write operations to “non-defined” address locations within the XRT8001, then the user may observe strange
operation from the XRT8001. The user must make sure that when the Microcontroller performs WRITE operations to the XRT8001, it
is only performing these WRITE operations to the Address Locations defined in the XRT8001 Data Sheet.
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