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参数资料
| 型号： | DS2703UR |
| 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： | 3/20页 |
| 文件大小： | 238K |
| 代理商： | DS2703UR |
DS2703 SHA-1 Battery Pack Authentication IC
3 of 20
AC ELECTRICAL CHARACTERISTICS
(V
PULLUP
= 2.7V to 5.5V, T
A
= -20°C to +70°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
THM Low Delay
t
TD
t
D
(Note 11)
15
s
Computation Delay Time
Computation Time
Programming Pulse Width
(Note 12)
100
μs
t
SHA
(Note 12)
15
ms
t
PPW
(Note 5)
17
ms
Programming Pulse Rise Time
t
PPR
0.5
5
μs
Programming Pulse Fall Time
t
PPF
0.5
5
μs
Start-up Delay Time
t
STRT
(Note 13)
100
ms
AC ELECTRICAL CHARACTERISTICS: 1-Wire INTERFACE
(V
PULLUP
= 2.7V to 5.5V, T
A
= -20°C to +70°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
1-Wire INTERFACE REGULAR TIMING
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid Time
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
1-Wire INTERFACE OVERDRIVE TIMING
t
SLOT
60
120
μs
t
REC
1
μs
t
LOW0
60
120
μs
t
LOW1
1
15
μs
t
RDV
15
μs
t
RSTH
480
μs
t
RSTL
480
960
μs
t
PDH
15
60
μs
t
PDL
60
240
μs
Time Slot
Recovery Time
Write 0 Low Time
Write 1 Low Time
Read Data Valid Time
Reset Time High
Reset Time Low
Presence Detect High
Presence Detect Low
t
SLOT
6
16
μs
t
REC
1
μs
t
LOW0
6
16
μs
t
LOW1
1
2
μs
t
RDV
2
μs
t
RSTH
48
μs
t
RSTL
48
80
μs
t
PDH
2
6
μs
t
PDL
8
24
μs
Note 1:
Note 2:
V
DQ
– V
THM
. The THM pin must not be driven to a higher voltage than the DQ pin.
The application thermistor cannot exceed the R
DQ-THM
resistance range over operating temperature. If thermistor mode is not used in the application, it is
recommended that a 50K
resistor be connected between DQ and THM pins instead.
Maximum leakage of DQ pin while in thermistor mode.
When performing a Lock Secret (0x6A), Set Overdrive (0x8B) or Clear Overdrive (0x8D) operation, there will be an increased operating current of I
PGM-
during the time period from when the command is issued until the next 1-Wire bus reset. I
PGM-IDLE
current will be present before and after the program
pulse.
See Figure 11 for definitionof t
PPR
, t
PPW
, and t
PPF.
All voltages referenced to VSS.
V
DQ
must be at least 3.0V when the 1-Wire bus is idle.
Drive strength at time=0 after Activate Thermistor command is sent to the DS2703.
Does not include capacitance referred from VB pin on initial power up.
EEPROM data read retention is four years at +50°C
Time from msb of Activate Thermistor command until THM pin is driven low internally.
Time from msb of Compute Next Secret or Compute MAC command.
Time after initial power up before the DS2703 will respond to communication. T
STRT
specifications are valid only if the capacitor on VB (C
VB
) is 0.22
μ
F.
Worst case 100ms delay based on maximum thermistor value of 500k
.
Note 3:
Note 4:
Note 5:
Note 6:
Note 7:
Note 8:
Note 9:
Note 10:
Note 11:
Note 12:
Note 13:
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PDF描述 |
|---|---|
| DS2703UT | SHA-1 Battery Pack Authentication IC |
| DS2715 | NiMH Battery Pack Charge Controller |
| DS2715Z | NiMH Battery Pack Charge Controller |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2703UT | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:SHA-1 Battery Pack Authentication IC |
| 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 |
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