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參數(shù)資料
| 型號： | X1228V14Z-4.5A |
| 廠商： | INTERSIL CORP |
| 元件分類： | XO, clock |
| 英文描述： | 16 Characters x 1 Lines, 5x7 Dot Matrix Character and Cursor |
| 中文描述： | 1 TIMER(S), REAL TIME CLOCK, PDSO14 |
| 封裝： | ROHS COMPLIANT, PLASTIC, MO-153AC, TSSOP-14 |
| 文件頁數(shù)： | 20/31頁 |
| 文件大?。?/td> | 569K |
| 代理商： | X1228V14Z-4.5A |
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X1228
REV 1.3 3/24/04
Characteristics subject to change without notice.
20 of 31
www.xicor.com
Figure 10. Slave Address, Word Address, and Data Bytes (64 Byte pages)
Write Operations
Byte Write
For a write operation, the device requires the Slave
Address Byte and the Word Address Bytes. This gives
the master access to any one of the words in the array
or CCR. (Note: Prior to writing to the CCR, the master
must write a 02h, then 06h to the status register in two
preceding operations to enable the write operation.
See “Writing to the Clock/Control Registers.” Upon
receipt of each address byte, the X1228 responds with
an acknowledge. After receiving both address bytes
the X1228 awaits the eight bits of data. After receiving
the 8 data bits, the X1228 again responds with an
acknowledge. The master then terminates the transfer
by generating a stop condition. The X1228 then begins
an internal write cycle of the data to the nonvolatile
memory. During the internal write cycle, the device
inputs are disabled, so the device will not respond to
any requests from the master. The SDA output is at high
impedance. See Figure 11.
Figure 11. Byte Write Sequence
Figure 12. Writing
30
bytes to a
64
-byte memory page starting at address
40
.
Slave Address Byte
Byte 0
D7
D6
D5
D2
D4
D3
D1
D0
A0
A7
A2
A4
A3
A1
Data Byte
Byte 3
A6
A5
0
0
0
0
0
A8
0
1
1
0
1
1
0
1
0
1
1
R/W
1
Device Identifier
Array
CCR
0
Word Address 1
Byte 1
Word Address 0
Byte 2
S
t
a
r
t
S
t
o
p
Slave
Address
Word
Address 1
Data
A
C
K
A
C
K
A
C
K
SDA Bus
Signals From
The Slave
Signals from
the Master
0
A
C
K
Word
Address 0
1
1
1
1
0 0 0 0 0 0 0
Address
63
Address
40
23 Bytes
7 Bytes
Address
= 6
Address Pointer
Ends Here
Addr = 7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| X1228V14IZ-4.5A | 16 Characters x 1 Lines, 5x7 Dot Matrix Character and Cursor |
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| X1228S14Z-2.7T1 | EXT DIST RS232 DATA CBL DB25 MALE - DB25 FEMALE |
| X1228V14I-2.7A | RTC Module With CPU Supervisor |
| X1228V14I-4.5A | DIODE 05 TVS SO8 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X1228ZY WAF | 制造商:Intersil Corporation 功能描述: |
| X122K | 制造商:IQD Frequency Products 功能描述:CRYSTAL OSCILLATOR 12.288000MHZ |
| X122-SERIES | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC |
| X123-133.33M | 制造商:CONNOR-WINFIELD 制造商全稱:Connor-Winfield Corporation 功能描述:5.0x7.0mm Surface Mount LVCMOS Clock Oscillator Series |
| X123241-RDS | 制造商:Honeywell Sensing and Control 功能描述:ATOM & PROX |
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