Datasheet > X4165

X4165

更新时间： 2022-04-23 23:00:11

品牌	Logo	应用领域
英特矽尔 - INTERSIL		监控可编程只读存储器电动程控只读存储器电可擦编程只读存储器
页数	文件大小	规格书
22页	352K
描述
CPU Supervisor with 16K EEPROM

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X4165 数据手册

X4163, X4165

Figure 4. V

Programming Sequence

TRIP

V_TRIPProgramming

Execute

Reset V_TRIP

Sequence

Set V_CC= V_CCApplied =

Desired V_TRIP

New V_CCApplied =

Old V_CCApplied + Error

New V_CCApplied =

Old V_CCApplied - Error

Execute

Set V_TRIP

Sequence

Execute

Reset V_TRIP

Sequence

Apply 5V to V_CC

Decrement V_CC

(V_CC= V_CC- 50mV)

RESET pin

goes active?

YES

Error ≤ –Emax

Error ≥ Emax

Measured V_TRIP

Desired V_TRIP

–Emax < Error < Emax

DONE

Emax = Maximum Allowed V_TRIPError

Control Register

The user must issue a stop after sending this byte to

the register to initiate the nonvolatile cycle that stores

WD1, and WD0. The X4163, X4165 will not acknowl-

edge any data bytes written after the first byte is

entered.

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 state of the Control Register can be read at any

time by performing a random read at address FFFFh.

Only one byte is read by each register read operation.

The X4163, X4165 resets itself after the first byte is

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.

FN8120.1

May 12, 2006

1...4 5 678 9 10...22

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