DS2045Y-100 datasheet(7/12 Pages) DALLAS

Part #	DS2045Y-100

Description	Single-Piece 1Mb Nonvolatile SRAM

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Manufacturer	DALLAS [Dallas Semiconductor]

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DS2045Y/AB Single-Piece 1Mb

Nonvolatile SRAM

_____________________________________________________________________

7

SUPPLY CURRENT

vs. OPERATING FREQUENCY

VCC (V)

5.5

5.0

4.5

5

10

15

20

25

0

4.0

6.0

5MHz 100% DUTY CYCLE

5MHz 50% DUTY CYCLE

1MHz 100% DUTY CYCLE

1MHz 50% DUTY CYCLE

TA = +25

°C

SUPPLY CURRENT

vs. SUPPLY VOLTAGE

VCC (V)

5.5

5.0

4.5

160

170

180

190

200

210

220

230

240

250

150

4.0

6.0

TA = +25

°C

BATTERY CHARGER CURRENT

vs. BATTERY VOLTAGE

DELTA BELOW VCHRG (V)

0.6

0.8

0.4

0.2

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

0

01.0

VCC = CE = 5.0V

VCHRG = 3.03V

VCHRG PERCENT CHANGE

vs. TEMPERATURE

TEMPERATURE (

°C)

80

70

50 60

-10 0 10 20 30 40

-30 -20

-0.4

-0.3

-0.2

-0.1

0

0.1

0.2

0.3

0.4

0.5

-0.5

-40

VCC = 5.0V

VBAT = VCHRG

VTP vs. TEMPERATURE

TEMPERATURE (

°C)

80

60

20

40

0

-20

4.30

4.35

4.40

4.45

4.50

4.55

4.60

4.65

4.70

4.75

4.25

-40

DS2045AB

DS2045Y

DQ VOH vs. DQ IOH

IOH (mA)

-1

-2

-3

-4

3.7

3.9

4.1

4.3

4.5

4.7

4.9

3.5

-5

0

VCC = 4.5V

DQ VOL vs. DQ IOL

IOL (mA)

4.5

4.0

0.5 1.0 1.5

2.5 3.0

2.0

3.5

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

0

05.0

VCC = 4.5V

RST OUTPUT-VOLTAGE LOW

vs. OUTPUT-CURRENT LOW

IOL (mA)

15

10

5

0.1

0.2

0.3

0.4

0.5

0

020

VCC = 4.25V

RST VOLTAGE

vs. VCC DURING POWER-UP

VCC POWER-UP (V)

5.0

4.5

3.5 4.0

1.0 1.5 2.0 2.5 3.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

0

05.5

DS2045AB

TA = +25

°C

Typical Operating Characteristics

(VCC = +5.0V, TA = +25

°C, unless otherwise noted.)

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DS2045Y-100 Datasheet(PDF) 7 Page - Dallas Semiconductor

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