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参数资料
| 型号： | X9520V20I-B |
| 厂商： | Intersil |
| 文件页数： | 12/29页 |
| 文件大小： | 0K |
| 描述： | IC 3 DCP 2K EE LASR CTRL 20TSSOP |
| 标准包装： | 75 |
| 类型： | 激光二极管控制器（光纤） |
| 通道数： | 3 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 电流 - 电源： | 1.5mA |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 20-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 20-TSSOP |
| 包装： | 管件 |
| 安装类型： | 表面贴装 |
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
X9520
Signals from the
Master
S
t
a
r
t
Slave
Address
WRITE Operation
Address
Byte
S
t
a
r
t
Slave
Address
READ Operation
S
t
o
p
SDA Bus
1 0 1 0 0 0 0
0
1 0 1 0 0 0 0
1
Signals from the
Slave
A
C
K
A
C
K
A
C
K
Data
“Dummy” Write
FIGURE 15. RANDOM EEPROM ADDRESS READ SEQUENCE
the read operation by not responding with an
ACKNOWLEDGE and instead issuing a STOP condition
(Refer to Figure 15.).
A similar operation called “Set Current Address” also exists.
This operation is performed if a STOP is issued instead of
the second START shown in Figure 15. In this case, the
device sets the address pointer to that of the Address Byte,
and then goes into standby mode after the STOP bit. All bus
activity will be ignored until another START is detected.
Sequential EEPROM Read
Sequential reads can be initiated as either a current address
read or random address read. The first Data Byte is
transmitted as with the other modes; however, the master
now responds with an ACKNOWLEDGE, indicating it
requires additional data. The X9520 continues to output a
Data Byte for each ACKNOWLEDGE received. The master
terminates the read operation by not responding with an
ACKNOWLEDGE and instead issuing a STOP condition.
The data output is sequential, with the data from address n
followed by the data from address n + 1. The address counter
for read operations increments through the entire memory
contents to be serially read during one operation. At the end of
the address space the counter “rolls over” to address 00h and
the device continues to output data for each
ACKNOWLEDGE received (Refer to Figure 16.).
Control and Status Register
The Control and Status (CONSTAT) Register provides the
user with a mechanism for changing and reading the status
of various parameters of the X9520 (See Figure 17).
The CONSTAT register is a combination of both volatile and
nonvolatile bits. The nonvolatile bits of the CONSTAT
register retain their stored values even when V1/VCC is
powered down, then powered back up. The volatile bits
however, will always power-up to a known logic state “0”
(irrespective of their value at power-down).
A detailed description of the function of each of the
CONSTAT register bits follows:
WEL: WRITE ENABLE LATCH (VOLATILE)
The WEL bit controls the Write Enable status of the entire
X9520 device. This bit must first be enabled before ANY
write operation (to DCPs, EEPROM memory array, or the
CONSTAT register). If the WEL bit is not first enabled, then
ANY proceeding (volatile or nonvolatile) write operation to
Signals from the
Master
Slave
Address
A
C
K
A
C
K
A
C
K
S
t
o
p
SDA Bus
0 0 0
1
Signals from the
Slave
A
C
K
Data
(1)
Data
(2)
Data
(n-1)
Data
(n)
(n is any integer greater than 1)
FIGURE 16. SEQUENTIAL EEPROM READ SEQUENCE
12
FN8206.2
August 20, 2007
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相关代理商/技术参数 |
参数描述 |
|---|---|
| X9520V20I-BT1 | 功能描述:IC VOLT MON DUAL 2KBIT 20-TSSOP RoHS:否 类别:集成电路 (IC) >> PMIC - 激光驱动器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:60 系列:- 类型:激光二极管驱动器 数据速率:- 通道数:4 电源电压:3.3V 电流 - 电源:- 电流 - 调制:- 电流 - 偏置:- 工作温度:0°C ~ 70°C 封装/外壳:40-TQFN 裸露焊盘 供应商设备封装:40-TQFN EP 包装:托盘 安装类型:表面贴装 |
| X9520V20IZ-A | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR, 2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520V20IZ-AT1 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR, 2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520V20IZ-AT2 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR, 2kbit EEPROM Memory, Dual Voltage Monitors |
| X9520V20IZ-B | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Triple DCP, POR, 2kbit EEPROM Memory, Dual Voltage Monitors |
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