28C64A-15L Просмотр технического описания (PDF) - Microchip Technology

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28C64A-15L

64K (8K x 8) CMOS EEPROM

Microchip Technology 

28C64A

1.0 ELECTRICAL CHARACTERISTICS

1.1 MAXIMUM RATINGS*

VCC and input voltages w.r.t. VSS ....... -0.6V to + 6.25V

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

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

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

Storage temperature ..........................-65°C to +125°C

Ambient temp. with power applied .......-50°C to +95°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 - A12

CE

OE

WE

I/O0 - I/O7

RDY/Busy

VCC

VSS

NC

NU

Address Inputs

Chip Enable

Output Enable

Write Enable

Data Inputs/Outputs

Ready/Busy

+5V Power Supply

Ground

No Connect; No Internal Connection

Not Used; No External Connection is

Allowed

TABLE 1-2: READ/WRITE OPERATION DC CHARACTERISTIC

VCC = +5V ±10%

Commercial (C): Tamb = 0°C to +70°C

Industrial (I): Tamb = -40°C to +85°C

Parameter

Status

Symbol Min Max Units

Conditions

Input Voltages

Input Leakage

Input Capacitance

Logic ‘1’

Logic ‘0’

—

—

VIH

2.0

VIL

-0.1

ILI

-10

CIN

—

Output Voltages

Output Leakage

Output Capacitance

Logic ‘1’

Logic ‘0’

—

—

VOH

2.4

VOL

ILO

-10

COUT

—

Power Supply Current, Active

TTL input

ICC

—

Power Supply Current, Standby TTL input ICC(S)TTL —

TTL input ICC(S)TTL

CMOS input ICC(S)CMOS

Note 1: AC power supply current above 5MHz: 2mA/MHz.

2: Not 100% tested.

Vcc+1

0.8

10

10

0.45

10

12

30

2

3

100

V

V

µA VIN = -0.1V to Vcc +1

pF VIN = 0V; Tamb = 25°C;

f = 1 MHz (Note 2)

V IOH = -400 µA

V IOL = 2.1 mA

µA VOUT = -0.1V to Vcc +0.1V

pF VIN = 0V; Tamb = 25°C;

f = 1 MHz (Note 2)

mA f = 5 MHz (Note 1)

VCC = 5.5V

mA CE = VIH (0°C to +70°C)

mA CE = VIH (-40°C to +85°C)

µA CE = VCC-0.3 to Vcc +1

OE = WE = Vcc

All other inputs equal VCC

or VSS

DS11109K-page 2

 2004 Microchip Technology Inc.

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