参数资料
型号: DS26502LN+
厂商: Maxim Integrated Products
文件页数: 54/125页
文件大小: 0K
描述: IC T1/E1/J1 64KCC ELEMENT 64LQFP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 160
类型: BITS 元件,多路复用器
PLL:
主要目的: T1/E1
输入: 时钟
输出: 时钟
电路数: 1
比率 - 输入:输出: 2:3
差分 - 输入:输出: 无/无
频率 - 最大: 6.312MHz
电源电压: 3.135 V ~ 3.465 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-LQFP(10x10)
包装: 托盘
产品目录页面: 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.
相关PDF资料
PDF描述
DS26503LN+ IC T1/E1/J1 BITS ELEMENT 64-LQFP
DS3105LN+ IC TIMING LINE CARD 64-LQFP
DS3106LN+ IC TIMING LINE CARD 64-LQFP
DS3231MZ+ IC RTC I2C 8SOIC
DS3231SN#T&R IC RTC W/TCXO 16-SOIC
相关代理商/技术参数
参数描述
DS26502LN+ 功能描述:计时器和支持产品 E1/T1/J1/64Kcc Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel
DS26503 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:T1/E1/J1/64KCC BITS Element
DS26503_07 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:T1/E1/J1 BITS Element
DS26503DK 功能描述:时钟和定时器开发工具 DS26503 Dev Kit RoHS:否 制造商:Texas Instruments 产品:Evaluation Modules 类型:Clock Conditioners 工具用于评估:LMK04100B 频率:122.8 MHz 工作电源电压:3.3 V
DS26503L 功能描述:计时器和支持产品 E1-T1-J1 Bits Element RoHS:否 制造商:Micrel 类型:Standard 封装 / 箱体:SOT-23 内部定时器数量:1 电源电压-最大:18 V 电源电压-最小:2.7 V 最大功率耗散: 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装:Reel