27C512A datasheet(2/12 Pages) MICROCHIP | 512K (64K x 8) CMOS EPROM

No. de pieza	27C512A

Descripción Electrónicos	512K (64K x 8) CMOS EPROM

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Fabricante Electrónico	MICROCHIP [Microchip Technology]

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27C512A

DS11173E-page 2

1.0

ELECTRICAL CHARACTERISTICS

1.1

Maximum Ratings*

VCC and input voltages w.r.t. VSS ........ -0.6V to +7.25V

VPP voltage w.r.t. VSS during

programming ......................................... -0.6V to +14V

Voltage on A9 w.r.t. VSS ...................... -0.6V to +13.5V

Output voltage w.r.t. VSS ............... -0.6V to VCC +1.0V

Storage temperature .......................... -65˚C to +150˚C

Ambient temp. with power applied ..... -65˚C to +125˚C

*Notice: Stresses above those listed under “Maximum Ratings”

may cause permanent damage to the device. This is a stress rat-

ing only and functional operation of the device at those or any

other conditions above those indicated in the operation listings of

this speciﬁcation is not implied. Exposure to maximum rating con-

ditions for extended periods may affect device reliability.

TABLE 1-1:

PIN FUNCTION TABLE

Name

Function

A0-A15

Address Inputs

CE

Chip Enable

OE/VPP

Output Enable/Programming Voltage

O0 - O7

Data Output

VCC

+5V Power Supply

VSS

Ground

NC

No Connection; No Internal Connec-

tion

NU

Not Used; No External Connection is

Allowed

TABLE 1-2:

READ OPERATION DC CHARACTERISTICS

VCC = +5V

±10%

Commercial:

Tamb =

0˚C to +70˚C

Industrial:

Tamb = -40˚C to +85˚C

Extended (Automotive):

Tamb = -40˚C to +125˚C

Parameter

Part*

Status

Symbol

Min

Max

Units

Conditions

Input Voltages

all

Logic "1"

Logic "0"

VIH

VIL

2.0

-0.5

VCC+1

0.8

V

Input Leakage

all

ILI

-10

10

µAVIN = 0 to VCC

Output Voltages

all

Logic "1"

Logic "0"

VOH

VOL

2.4

0.45

V

IOH = - 400

µA

IOL = 2.1 mA

Output Leakage

all

—

ILO

-10

10

µAVOUT = 0V to VCC

Input Capacitance

all

—

CIN

—

6

pF

VIN = 0V; Tamb = 25

°C;

f = 1 MHz

Output Capacitance

all

—

COUT

—12

pF

VOUT = 0V; Tamb = 25

°C;

f = 1 MHz

Power Supply Current,

Active

C

I, E

TTL input

ICC

—

25

35

mA

VCC = 5.5V

f = 1 MHz;

OE/VPP = CE = VIL;

IOUT = 0 mA;

VIL = -0.1 to 0.8V;

VIH = 2.0 to VCC;

Note 1

Power Supply Current,

Standby

C

I, E

all

TTL input

CMOS input

ICC(S)TLL

ICC(S)CMOS

—

1

2

30

mA

µACE = Vcc±0.2V

* Parts: C=Commercial Temperature Range; I, E=Industrial and Extended Temperature Ranges

Note 1: Typical active current increases .75 mA per MHz up to operating frequency for all temperature ranges.

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