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參數(shù)資料
| 型號： | X25323S8I-2.7 |
| 英文描述： | Programmable Watchdog Timer & V CC Supervisory Circuit w/Serial E 2 PROM |
| 中文描述： | 可編程看門狗定時器 |
| 文件頁數(shù)： | 5/16頁 |
| 文件大?。?/td> | 76K |
| 代理商： | X25323S8I-2.7 |
X25643/45
X25323/25
X25163/65
5
0
1
2
3
4
5
6
7
8
9
10
20 21 22 23 24 25
26 27 28 29 30
7
6
5
4
3
2
1
0
DATA OUT
CS
SCK
SI
SO
MSB
HIGH IMPEDANCE
INSTRUCTION
16 BIT ADDRESS
15 14 13
3
2
1
0
7036 FRM 03
For the Page Write Operation (byte or page write) to be
completed, CS can only be brought HIGH after bit 0 of the
last data byte to be written is clocked in. If it is brought
HIGH at any other time, the write operation will not be
completed (Figure 4).
To write to the Status Register, the WRSR instruction is
followed by the data to be written (Figure 5). Data bits 0
and 1 must be “0” .
While the write is in progress following a Status Register
or E
PROM Sequence, the Status Register may be read
to check the WIP bit. During this time the WIP bit will be
high.
2
RESET/RESET Operation
The RESET (X25xx3) output is designed to go LOW
whenever V
CC
has dropped below the minimum trip point
and/or the Watchdog timer has reached its programmable
time-out limit.
The RESET (X25xx5) output is designed to go HIGH
whenever V
CC
has dropped below the minimum trip point
and/or the watchdog timer has reached its programmable
time-out limit.
The RESET/RESET output is an open drain output and
requires a pull up resistor.
Operational Notes
The device powers-up in the following state:
The device is in the low power standby state.
A HIGH to LOW transition on CS is required to enter an
active state and receive an instruction.
SO pin is high impedance.
The Write Enable Latch is reset.
The Flag Bit is reset.
Reset Signal is active for t
PURST
.
Data Protection
The following circuitry has been included to prevent inad-
vertent writes:
A WREN instruction must be issued to set the Write
Enable Latch.
CS must come HIGH at the proper clock count in order
to start a nonvolatile write cycle.
Figure 1. Read E
2
PROM Array Sequence
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| X25323V14 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Programmable Watchdog Timer & V CC Supervisory Circuit w/Serial E 2 PROM |
| X25323V14-1.8 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Programmable Watchdog Timer & V CC Supervisory Circuit w/Serial E 2 PROM |
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| X25323V14I | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Programmable Watchdog Timer & V CC Supervisory Circuit w/Serial E 2 PROM |
| X25323V14I-1.8 | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:Programmable Watchdog Timer & V CC Supervisory Circuit w/Serial E 2 PROM |
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