- 您现在的位置：买卖IC网 > PDF目录19617 > SE98APW,118 (NXP Semiconductors)IC TEMP SENSOR DDR 8-TSSOP PDF资料下载
参数资料
| 型号： | SE98APW,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 12/43页 |
| 文件大小： | 849K |
| 描述： | IC TEMP SENSOR DDR 8-TSSOP |
| 产品培训模块： | I²C Bus Fundamentals |
| 标准包装： | 1 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±4°C（最小值） |
| 拓扑： | ADC（三角积分型），寄存器库 |
| 输出类型： | I²C?/SMBus? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 1.7 V ~ 3.6 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-TSSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 847 (CN2011-ZH PDF) |
| 其它名称： | 568-4732-6 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页当前第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页
SE98A_4
?NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 25 November 2009
12 of 43
NXP Semiconductors
SE98A
DDR memory module temp sensor, 1.7 V to 3.6 V
7.7 SMBus Time-out
The SE98A supports the SMBus time-out feature. If the host holds SCL LOW between
25 ms and 35 ms, the SE98A would reset its internal state machine to the bus idle state to
prevent the system bus hang-up. This feature is turned on by default. The SMBus time-out
is disabled by writing a logic 1 to bit 7 of register 22h.
Remark: When SMBus time-out is enabled, the I
2
C-bus minimum bus speed is limited by
the SMBus time-out timer, and goes down to only 10 kHz.
The SE98A has no SCL driver, so it cannot hold the SCL line LOW.
Remark: SMBus time-out works over the entire supply range of 1.7 V to 3.6 V unless
shutdown bit (SHMD) is set and turns off the oscillator.
7.8 SMBus ALERT
The SE98A supports SMBus ALERT when it is programmed for the Interrupt mode and
when the EVENT
polarity bit is set to logic 0. The EVENT
pin can be ANDed with other
EVENT
or ALERT
signals from other slave devices to signal their intention to
communicate with the host controller. When the host detects EVENT
or ALERT
signal
LOW, it issues an Alert Response Address (ARA) to which a slave device would respond
with its address. When there are multiple slave devices generating an ALERT the SE98A
performs bus arbitration. If it wins the bus, it responds to the ARA and then clears the
EVENT
pin.
Remark: Either in comparator mode or when the SE98A crosses the critical temperature,
the host must also read the EVENT
status bit and provide remedy to the situation by
bringing the temperature to within the alarm window or below the critical temperature if
that bit is set. Otherwise, the EVENT
pin will not get de-asserted.
Remark: In the SE98A, the ARA is set to default ON. However, in the SE98B the ARA will
be set to default OFF since ARA is not anticipated to be used in DDR3 DIMM applications.
Fig 7. How SE98A responds to SMBus ALERT
0
0
0
1
1
A2
Alert Response Address
1
1
0
0
S
0
0
0
START bit
read
acknowledge
002aab330
A1
A0
0
1
P
device address
not acknowledge
STOP bit
host NACK and
sends a STOP bit
Slave acknowledges and
sends its slave address.
The last bit of slave address
is hard coded '0'.
master sends a START bit,
ARA and a read command
host detects
SMBus ALERT
1
相关PDF资料 |
PDF描述 |
|---|---|
| LC4512B-5TN176I | IC CPLD 512MACROCELLS 176TQFP |
| RS-4812S | CONV DC/DC 2W 36-72VIN 12VOUT |
| NCP1030DMR2 | IC CTRLR PWM OTP OVD HV MICRO8 |
| TCJC686M006R0100 | CAP TANT 68UF 6.3V 20% 2312 |
| GSM06DTBH-S189 | CONN EDGECARD 12POS R/A .156 SLD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SE98ATL | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:DDR memory module temp sensor, 1.7 V to 3.6 V |
| SE98ATL,147 | 功能描述:板上安装温度传感器 11-bit 1.7 V to3.6 V ADC TempToDigit conv RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| SE98ATP | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:DDR memory module temp sensor, 1.7 V to 3.6 V |
| SE98ATP,147 | 功能描述:板上安装温度传感器 I2 CLOCAL +/-1OC 1.7-3.6V TSDIMM RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| SE98ATP,547 | 功能描述:板上安装温度传感器 PROG TWI DIG 3.6V RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
发布紧急采购，3分钟左右您将得到回复。