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参数资料
| 型号： | DS1845B-010+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 4/14页 |
| 文件大小： | 0K |
| 描述： | IC POT/MEM DUAL NV 10K 16-BGA |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 接片： | 100，256 |
| 电阻（欧姆）： | 10k |
| 电路数： | 2 |
| 温度系数： | 标准值 750 ppm/°C |
| 存储器类型： | 非易失 |
| 接口： | I²C（设备位址） |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-LBGA，CSPBGA |
| 供应商设备封装： | 16-CSBGA（4x4） |
| 包装： | 带卷 (TR) |
DS1845
12 of 14
AC ELECTRICAL CHARACTERISTICS
(-40°C to 85°C , Vcc=2.7V to 5.5V)
PARAMETER
SYMBOL CONDITION
MIN
TYP
MAX
UNITS NOTES
SCL clock frequency
fSCL
Fast Mode
Standard Mode
0
400
100
kHz
4
Bus free time between
STOP and START
condition
tBUF
Fast Mode
Standard Mode
1.3
4.7
ms
Hold time (repeated)
START condition
tHD:STA
Fast Mode
Standard Mode
0.6
4.0
ms
5
Low period of SCL clock
tLOW
Fast Mode
Standard Mode
1.3
4.7
ms
High period of SCL clock
tHIGH
Fast Mode
Standard Mode
0.6
4.0
ms
Data hold time
tHD:DAT
Fast Mode
Standard Mode
0
0.9
ms
6
Data set-up time
t
SU:DAT
Fast Mode
Standard Mode
100
250
ns
Start set-up time
tSU:STA
Fast Mode
Standard Mode
0.6
4.7
ms
Rise time of both SDA
and SCL signals
tR
Fast Mode
Standard Mode
20 +
0.1CB
300
1000
ns
7
Fall time of both SDA
and SCL signals
tF
Fast Mode
Standard Mode
20 +
0.1CB
300
ns
7
Set-up time for STOP
condition
tSU:STO
Fast Mode
Standard Mode
0.6
4.0
ms
Capacitive load for each
bus line
CB
400
pF
7
EEPROM write time
tW
5
ms
8
NOTES:
1. All voltages are referenced to ground.
2. ISTBY specified with VCC equal 3.0V and 5.0V and control port logic pins are driven to the appropriate
logic levels. Appropriate logic levels specify that logic inputs are within a 0.5V of ground or VCC for
the corresponding inactive state.
3. I/O pins of fast mode devices must not obstruct the SDA and SCL lines if VCC is switched off.
4. A fast mode device can be used in a standard mode system, but the requirement tSU:DAT > 250 ns must
then be met. This will automatically be the case if the device does not stretch the LOW period of the
SCL signal. If such a device does stretch the LOW period of the SCL signal, it must output the next
data bit to the SDA line tRMAX + tSU:DAT = 1000 + 250 = 1250 ns before the SCL line is released.
5. After this period, the first clock pulse is generated.
6. The maximum tHD:DAT has only to be met if the device does not stretch the LOW period (tLOW) of the
SCL signal.
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相关代理商/技术参数 |
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| DS1845B-020 | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1845B-050 | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1845B-050/T&R | 制造商:Maxim Integrated Products 功能描述:DUAL NV POT/MEM CSBGA 10/50K T&R - Tape and Reel |
| DS1845B-050/T&R | 功能描述:数字电位计 IC RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
| DS1845B-050+ | 功能描述:数字电位计 IC Dual NV w/Memory RoHS:否 制造商:Maxim Integrated 电阻:200 Ohms 温度系数:35 PPM / C 容差:25 % POT 数量:Dual 每 POT 分接头:256 弧刷存储器:Volatile 缓冲刷: 数字接口:Serial (3-Wire, SPI) 描述/功能:Dual Volatile Low Voltage Linear Taper Digital Potentiometer 工作电源电压:1.7 V to 5.5 V 电源电流:27 uA 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:TQFN-16 封装:Reel |
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