參數(shù)資料
型號： DS26502LN+
廠商： Maxim Integrated Products
文件頁數(shù)： 54/125頁
文件大?。?/td> 0K
描述： IC T1/E1/J1 64KCC ELEMENT 64LQFP
產(chǎn)品培訓(xùn)模塊： Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝： 160
類型： BITS 元件，多路復(fù)用器
PLL： 是
主要目的： T1/E1
輸入： 時鐘
輸出： 時鐘
電路數(shù)： 1
比率 - 輸入:輸出： 2:3
差分 - 輸入:輸出： 無/無
頻率 - 最大： 6.312MHz
電源電壓： 3.135 V ~ 3.465 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 64-LQFP
供應(yīng)商設(shè)備封裝： 64-LQFP（10x10）
包裝： 托盤
產(chǎn)品目錄頁面： 1430 (CN2011-ZH PDF)
DS26502
34 of 125
7.3.1 Power-Up Sequence
The DS26502 contains an on-chip power-up reset function, which automatically clears the writeable
register space immediately after power is supplied to the device. The user can issue a chip reset at any
time. Issuing a reset will disrupt signals flowing through the DS26502 until the device is reprogrammed.
The reset can be issued through hardware using the TSTRST pin or through software using the SFTRST
function in the master mode register. The LIRST (LIC2.6) should be toggled from zero to one to reset the
line interface circuitry. (It will take the DS26502 about 40ms to recover from the LIRST bit being
toggled.)
7.3.2 Test Reset Register
Register Name:
TSTRREG
Register Description:
Test Reset Register
Register Address:
00h
Bit #
7
6
5
4
3
2
1
0
Name
—
TEST1
TEST0
—
SFTRST
Default
0
HW
Mode
X
Bit 0: Software Issued Reset (SFTRST). A zero-to-one transition causes the register space in the DS26502 to be cleared. A
reset clears all configuration and status registers. The bit automatically clears itself when the reset has completed.
Bits 1 to 3: Unused, must be set = 0 for proper operation.
Bits 4 and 5: Test Mode Bits (TEST0, TEST1). Test modes are used to force the output pins of the DS26502 into known
states. This can facilitate the checkout of assemblies during the manufacturing process and also be used to isolate devices from
shared buses.
TEST1
TEST0
Effect On Output Pins
0
Operate normally
0
1
Force all output pins into three-state (including all I/O pins and parallel port pins)
1
0
Force all output pins low (including all I/O pins except parallel port pins)
1
Force all output pins high (including all I/O pins except parallel port pins)
Bits 6 and 7: Unused, must be set = 0 for proper operation.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DS26502LN+ 功能描述:計時器和支持產(chǎn)品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
DS26503 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:T1/E1/J1/64KCC BITS Element
DS26503_07 制造商:MAXIM 制造商全稱:Maxim Integrated Products 功能描述:T1/E1/J1 BITS Element
DS26503DK 功能描述:時鐘和定時器開發(fā)工具 DS26503 Dev Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Evaluation Modules 類型:Clock Conditioners 工具用于評估:LMK04100B 頻率:122.8 MHz 工作電源電壓:3.3 V
DS26503L 功能描述:計時器和支持產(chǎn)品 E1-T1-J1 Bits Element RoHS:否 制造商:Micrel 類型:Standard 封裝 / 箱體:SOT-23 內(nèi)部定時器數(shù)量:1 電源電壓-最大:18 V 電源電壓-最小:2.7 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝:Reel
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