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參數(shù)資料
| 型號： | X4283 |
| 廠商： | Intersil Corporation |
| 元件分類： | DRAM |
| 英文描述： | CPU Supervisor with 128K EEPROM |
| 中文描述： | CPU監(jiān)控與128K的EEPROM的 |
| 文件頁數(shù)： | 5/22頁 |
| 文件大小： | 412K |
| 代理商： | X4283 |
X4283/85 – Preliminary Information
Characteristics subject to change without notice.
5 of 22
REV 1.17 11/27/00
www.xicor.com
Figure 4. V
TRIP
Programming Sequence
V
TRIP
Programming
Apply 5V to V
CC
Decrement V
CC
(V
CC
= V
CC
- 50mV)
RESET pin
goes active
Measured V
TRIP
-
Desired V
TRIP
DONE
Execute
Reset V
TRIP
Sequence
Set V
CC
= V
CC
Applied =
Desired V
TRIP
Execute
Set V
Sequence
New V
CC
Applied =
Old V
CC
Applied + Error
Execute
Reset V
Sequence
New V
CC
Applied =
Old V
CC
Applied - Error
Error
≤
–Emax
–Emax < Error < Emax
YES
NO
Error
≥
Emax
Emax = Maximum Allowed V
TRIP
Error
Control Register
The Control Register provides the user a mechanism
for changing the Block Lock and Watchdog Timer set-
tings. The Block Lock and Watchdog Timer bits are
nonvolatile and do not change when power is removed.
The Control Register is accessed at address FFFFh. It
can only be modified by performing a byte write opera-
tion directly to the address of the register and only one
data byte is allowed for each register write operation.
Prior to writing to the Control Register, the WEL and
RWEL bits must be set using a two step process, with
the whole sequence requiring 3 steps. See "Writing to
the Control Register" below.
The user must issue a stop after sending this byte to
the register to initiate the nonvolatile cycle that stores
WD1, WD0, BP2, BP1, and BP0. The X4283/85 will not
acknowledge any data bytes written after the first byte
is entered.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| X4283_06 | 制造商:INTERSIL 制造商全稱:Intersil Corporation 功能描述:CPU Supervisor with 128K EEPROM |
| X4283AL | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 128K EEPROM |
| X4283AM | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 128K EEPROM |
| X4283AN | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 128K EEPROM |
| X4283AP | 制造商:XICOR 制造商全稱:Xicor Inc. 功能描述:CPU Supervisor with 128K EEPROM |
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