DS4510U-5SLASHT datasheet(3/12 Pages) MAXIM

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CPU Supervisor with Nonvolatile Memory and

Programmable I/O

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CPU SUPERVISOR AC ELECTRICAL CHARACTERISTICS (See Figure 1)

(VCC = 2.7V to 5.5V, TA = -40°C to +85°C.)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

TD1= 0, TD0 = 0

112

125

138

TD1= 0, TD0 = 1

225

250

275

TD1= 1, TD0 = 0

450

500

550

RST Active Time

tRST

TD1= 1, TD0 = 1

900

1000

1100

TD1= 0, TD0 = 0

112

125

138

TD1= 0, TD0 = 1

225

250

275

TD1= 1, TD0 = 0

450

500

550

VCC Detect to RST

tRPU

TD1= 1, TD0 = 1

900

1000

1100

VCC Fail to RST

tRPD

410

µs

AC ELECTRICAL CHARACTERISTICS (See Figure 5)

(VCC = 2.7V to 5.5V, TA = -40°C to +85°C, timing referenced to VIL(MAX) and VIH(MIN).)

PARAMETER

SYMBOL

CONDITIONS

MIN

TYP

MAX

UNITS

SCL Clock Frequency

fSCL

(Note 6)

400

kHz

Bus Free Time Between Stop and

Start Conditions

tBUF

1.3

µs

Hold Time (Repeated) Start

Condition

tHD:STA

0.6

µs

Low Period of SCL

tLOW

1.3

µs

High Period of SCL

tHIGH

0.6

µs

Data Hold Time

tHD:DAT

0.9

µs

Data Setup Time

tSU:DAT

100

Start Setup time

tSU:STA

0.6

µs

SDA and SCL Rise Time

(Note 7)

20 + 0.1CB

300

SDA and SCL Fall Time

(Note 7)

20 + 0.1CB

300

Stop Setup Time

tSU:STO

0.6

µs

SDA and SCL Capacitive

(Note 7)

400

EEPROM Write Time

(Note 7)

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