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Dc characteristics, Capacitance – Rainbow Electronics W27E520 User Manual

Page 4

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Advance Information W27E520

- 4 -

DC CHARACTERISTICS

Absolute Maximum Ratings

PARAMETER

RATING

UNIT

Ambient Temperature with Power Applied

-55 to +125

°

C

Storage Temperature

-65 to +150

°

C

Voltage on all Pins with Respect to Ground Except

OE /V

PP,

A9 and V

DD

Pins

-2.0 to +7.0

V

Voltage on OE /V

PP

Pin with Respect to Ground

-2.0 to +7.0

V

Voltage on A9 Pin with Respect to Ground

-2.0 to +7.0

V

Voltage V

DD

Pin with Respect to Ground

-2.0 to +14.0

V

Note: 1. Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of

the device.

2. Minimum voltage is -0.6V DC which may undershoot to -2.0V for pulses of less than 20ns. Maximum output pin voltage is

V

DD

+0.75V DC which may overshoot to +7.0V for pulses of less than 20ns.

DC Erase Characteristics

(T

A

= 25

°

C

±

5

°

C, V

DD

= 6.5V

±

0.25V)

PARAMETER

SYM.

CONDITIONS

LIMITS

UNIT

MIN.

TYP.

MAX.

Input Load Current

I

LI

V

IN

= V

IL

or V

IH

-10

-

10

µ

A

V

DD

Erase Current

I

CP

ALE = V

IH,

OE /V

PP

= V

PE

A8&A11 = V

IL

, A9 = V

PE

,

A10 = V

IH

, Others = X

-

-

30

mA

V

PP

Erase Current

I

PP

ALE = V

IH,

OE /V

PP

= V

PE

A8&A11 = V

IL

, A9 = V

PE

,

A10 = V

IH

, Others = X

-

-

30

mA

Input Low Voltage

V

IL

-

-0.3

-

0.8

V

Input High Voltage

V

IH

-

2.4

-

V

DD

+0.3

V

Output Low Voltage
(Verify)

V

OL

I

OL

= 2.1 mA

-

-

0.45

V

Output High Voltage
(Verify)

V

OH

I

OH

= -0.4 mA

2.4

-

-

-

A9 SID Voltage

V

HH

V

DD

= 5V

±

10%

11.5

12

12.5

V

A9 Erase Voltage

V

PE

-

12.75

13

13.25

V

V

PP

Erase Voltage

V

PE

-

12.75

13

13.25

V

V

DD

Supply Voltage (Erase

& Erase Verify)

V

DE

-

6.25

6.5

6.75

V

Note: V

DD

must be applied simultaneously or before V

PP

and removed simultaneously or after V

PP

.

CAPACITANCE

(V

DD

= 4.5V to 5.5V, T

A

= 25

°

C, f = 1 MHz)

PARAMETER

SYMBOL

MAX.

UNIT

Input Capacitance

C

IN

V

IN

= 0V

6

pF

Output Capacitance

C

OUT

V

OUT

= 0V

12

pF