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| 型號(hào)： | 1023ZD4E-28TE13 |
| 元件分類： | 電源管理 |
| 英文描述： | 1-CHANNEL POWER SUPPLY MANAGEMENT CKT, DSO8 |
| 封裝： | 3 X 3 MM, 0.80 MM HEIGHT, MSOP FOOTPRINT, TDFN-8 |
| 文件頁(yè)數(shù)： | 4/17頁(yè) |
| 文件大?。?/td> | 107K |
| 代理商： | 1023ZD4E-28TE13 |
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12
CAT1021, CAT1022, CAT1023
Preliminary Information
Doc. No. 3009, Rev. E
Acknowledge Polling
Disabling of the inputs can be used to take advantage of
the typical write cycle time. Once the stop condition is
issued to indicate the end of the host’s write opration, the
CAT1021/22/23 initiates the internal write cycle. ACK
polling can be initiated immediately. This involves issuing
the start condition followed by the slave address for a
write operation. If the device is still busy with the write
operation, no ACK will be returned. If a write operation
has completed, an ACK will be returned and the host can
then proceed with the next read or write operation.
WRITE PROTECTION PIN (WP)
The Write Protection feature (CAT1021 only) allows the
user to protect against inadvertent memory array
programming. If the WP pin is tied to VCC, the entire
memory array is protected and becomes read only. The
CAT1021 will accept both slave and byte addresses,
but the memory location accessed is protected from
programming by the device’s failure to send an
acknowledge after the first byte of data is received.
Read Operations
The READ operation for the CAT1021/22/23 is initiated
in the same manner as the write operation with one
exception, the R/
W bit is set to one. Three different
READ operations are possible: Immediate/Current
Address READ, Selective/Random READ and
Sequential READ.
SCL
SDA
8TH BIT
STOP
NO ACK
DATA OUT
89
SLAVE
ADDRESS
S
A
C
K
DATA
N
O
A
C
K
S
T
O
P
BUS ACTIVITY:
MASTER
SDA LINE
S
T
A
R
T
Figure 10. Immediate Address Read Timing
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| 12IWR1-05-15-NT | 2-OUTPUT 1 W DC-DC REG PWR SUPPLY MODULE |
| 15IXR1-15-15-S | 2-OUTPUT 1 W DC-DC REG PWR SUPPLY MODULE |
| 12D12.075 | 2-OUTPUT 1.8 W DC-DC REG PWR SUPPLY MODULE |
| 15E28S | 1-OUTPUT 6.5 W DC-DC UNREG PWR SUPPLY MODULE |
| 15B9S | 1-OUTPUT 2 W DC-DC UNREG PWR SUPPLY MODULE |
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| 1024 | 功能描述:電池座、電池扣和電池接頭 AA Battery Holder SMT RoHS:否 制造商:Eagle Plastic Devices 產(chǎn)品:Battery Snaps 電池組電池大小:9 V 電池?cái)?shù)量:1 端接類型:Snaps 顏色:Black 材料:Polyvinyl Chloride (PVC) 安裝風(fēng)格:Snap-In |
| 10-24 AJ 6 | 功能描述:螺絲和緊固件 SEELNUTS 10-24 THREAD RoHS:否 制造商:Unspecified 產(chǎn)品: 類型:Washer 螺紋大小: 長(zhǎng)度: 材料:Steel 電鍍:Nickel 螺絲頭: 螺絲類型: |
| 1024=SPA | 制造商:Misc 功能描述: |
| 10240 | 功能描述:模擬面板表 1357 0-300 ACV 3. RoHS:否 制造商:Simpson Electric Company 設(shè)備類型:AC Current Meter 范圍:0 - 5 大小:4.88 in |
| 10240-0200EL | 制造商:3M Electronic Products Division 功能描述:Bulk 制造商:3M Electronic Products Division 功能描述:Connector,MDR,Receptacle,WireMount |
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