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参数资料
| 型号： | DS2703UT |
| 英文描述： | SHA-1 Battery Pack Authentication IC |
| 中文描述： | SHA - 1的电池组认证IC |
| 文件页数： | 17/20页 |
| 文件大小： | 238K |
| 代理商： | DS2703UT |
DS2703 SHA-1 Battery Pack Authentication IC
17 of 20
LOW-IMPEDANCE DQ DURING COMPUTATION
The SHA-1 computation requires more current than the DQ pullup resistor used during normal communication can
supply. During the computation, the DQ source impedance must be reduced to maintain power to the device under
the higher load condition. The user must connect the low impedance source to the DQ line within t
D
of issuing any
command to perform a computation, and return the DQ source to normal settings before reading or writing to the
one-wire interface. See Figure 9.
Figure 9. Compute MAC Function Command
8 Write 0
Time Slots
Up to 160 Read Time Slots
(Read 20-Byte MAC)
SKIP ROM
Cmd
Compute
MAC
Cmd
1-Wire
Reset
Presence
Pulse
t
D
t
SHA
Apply Low
Impedance
Pull-up
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2704 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:1280-Bit EEPROM with SHA-1 Authentication |
| DS2704-500-WAFER | 功能描述:电可擦除可编程只读存储器 RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS2704E+ | 制造商:Maxim Integrated Products 功能描述:1024 BIT MEM W/SHA-1 AUTH L/F - Rail/Tube |
| DS2704G+ | 功能描述:电可擦除可编程只读存储器 1280-Bit 电可擦除可编程只读存储器 w/SHA-1 Authent RoHS:否 制造商:Atmel 存储容量:2 Kbit 组织:256 B x 8 数据保留:100 yr 最大时钟频率:1000 KHz 最大工作电流:6 uA 工作电源电压:1.7 V to 5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 |
| DS2704G+T&R | 制造商:Maxim Integrated Products 功能描述:EEPROM SERL-1WIRE 1.25KBIT 5PAGES X 32 3.3V/5V 6TDFN EP - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC EEPROM 1.25KBIT 6TDFN 制造商:Maxim Integrated Products 功能描述:EEPROM 1280-Bit EEPROM w/SHA-1 Authent |
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