X4283 데이터 시트보기 (PDF) - Xicor -> Intersil

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X4283

CPU Supervisor with 128K EEPROM

Xicor -> Intersil 

X4283/85 – Preliminary Information

RESET Output Timing

Symbol

tWDO

tRST

Parameter

Watchdog Time Out Period,

WD1 = 1, WD0 = 0

WD1 = 0, WD0 = 1

WD1 = 0, WD0 = 0 (factory setting)

Reset Time Out

VTRIP Programming Timing Diagram (WEL = 1)

Min.

100

450

1

100

Typ.

250

650

1.5

250

VCC

(VTRIP)

VP

WP

SCL

tVPS

VTRIP

tTSU

tVPH

SDA

A0h

00h

01h or 03h

00h

Max.

400

850

2

400

Unit

ms

ms

sec

ms

tTHD

tVPO

tRP

VTRIP Programming Parameters

Parameter

Description

tVPS

tVPH

tTSU

tTHD

tWC

tVPO

tRP

VP

VTRAN

Vta1

Vta2

VTRIP Program Enable Voltage Setup time

VTRIP Program Enable Voltage Hold time

VTRIP Setup time

VTRIP Hold (stable) time

VTRIP Write Cycle Time

VTRIP Program Enable Voltage Off time (Between successive adjustments)

VTRIP Program Recovery Period (Between successive adjustments)

Programming Voltage

VTRIP Programmed Voltage Range

Initial VTRIP Program Voltage accuracy (VCC applied–VTRIP) (Programmed at 25°C.)

Subsequent VTRIP Program Voltage accuracy [(VCC applied–Vta1)—VTRIP.

Programmed at 25°C.)

Vtr

VTRIP Program Voltage repeatability (Successive program operations. Programmed

at 25°C.)

Vtv

VTRIP Program variation after programming (0–75°C). (Programmed at 25°C.)

VTRIP programming parameters are periodically sampled and are not 100% tested.

Min. Max. Unit

1

µs

1

µs

1

µs

10

ms

10 ms

0

µs

10

ms

15 18 V

2.55 4.75 V

-0.1 +0.4 V

-25 +25 mV

-25 +25 mV

-25 +25 mV

REV 1.17 11/27/00

www.xicor.com

Characteristics subject to change without notice. 18 of 22

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