參數(shù)資料
型號: X40020V14-B
廠商: INTERSIL CORP
元件分類: 電源管理
英文描述: DIODE, STUD 165A 1200VDIODE, STUD 165A 1200V; Voltage, Vrrm:1200V; Current, If av:165A; Current, Ifs max:2500A; Voltage, forward at If:1.5V; Case style:E14; Thread size:M12; Diode type:Standard recovery; Polarity, diode:Stud C
中文描述: 2-CHANNEL POWER SUPPLY MANAGEMENT CKT, PDSO14
封裝: 4.40 MM, PLASTIC, MO-153AC, TSSOP-14
文件頁數(shù): 11/24頁
文件大小: 346K
代理商: X40020V14-B
11
FN8112.0
March 28, 2005
Figure 10. Byte Write Sequence
Stops and Write Modes
Stop conditions that terminate write operations must
be sent by the master after sending at least 1 full data
byte plus the subsequent ACK signal. If a stop is
issued in the middle of a data byte, or before 1 full
data byte plus its associated ACK is sent, then the
device will reset itself without performing the write. The
contents of the array will not be effected.
Acknowledge Polling
The disabling of the inputs during high voltage cycles
can be used to take advantage of the typical 5ms write
cycle time. Once the stop condition is issued to indi-
cate the end of the master’s byte load operation, the
device initiates the internal high voltage cycle.
Acknowledge polling can be initiated immediately. To
do this, the master issues a start condition followed by
the Slave Address Byte for a write or read operation. If
the device is still busy with the high voltage cycle then
no ACK will be returned. If the device has completed
the write operation, an ACK will be returned and the
host can then proceed with the read or write operation.
See Figure 11.
Serial Read Operations
Read operations are initiated in the same manner as
write operations with the exception that the R/W bit of
the Slave Address Byte is set to one.
Figure 11. Acknowledge Polling Sequence
S
t
a
r
t
S
t
o
p
Slave
Address
Byte
Address
Data
A
C
K
A
C
K
A
C
K
SDA Bus
Signals from
the Slave
Signals from
the Master
0
ACK
Returned
Issue Slave Address
Byte (Read or Write)
Byte Load Completed
by Issuing STOP.
Enter ACK Polling
Issue STOP
Issue START
NO
YES
High Voltage Cycle
Complete. Continue
Command Sequence
Issue STOP
NO
Continue Normal
Read or Write
Command Sequence
PROCEED
YES
X40020, 40021
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