27C512A-10E/SO [MICROCHIP]

512K (64K x 8) CMOS EPROM; 512K （ 64K ×8 ） CMOS EPROM


型号：	27C512A-10E/SO
厂家：	MICROCHIP
描述：	512K (64K x 8) CMOS EPROM 512K （ 64K ×8 ） CMOS EPROM 存储内存集成电路光电二极管可编程只读存储器 OTP只读存储器电动程控只读存储器
文件：	总10页 (文件大小：133K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

Obsolete Device

27C512A

512K (64K x 8) CMOS EPROM

FEATURES

PACKAGE TYPES

• High speed performance

PLCC

• CMOS Technology for low power consumption

- 25 mA Active current

- 30 µA Standby current

A11

OE/V^PP

A10

• Factory programming available

• Auto-insertion-compatible plastic packages

• Auto ID aids automated programming

• High speed express programming algorithm

• Organized 64K x 8: JEDEC standard pinouts

- 28-pin Dual-in-line package

DIP/SOIC

- 32-pin PLCC Package

A15

A12

VCC

A14

A13

- 28-pin SOIC package

- Tape and reel

• Data Retention > 200 years

A11

OE/V^PP

A10

• Available for the following temperature ranges

- Commercial:

- Industrial:

0°C to +70°C

-40°C to +85°C

-40°C to +125°C

V^SS

- Automotive:

DESCRIPTION

The Microchip Technology Inc. 27C512A is a CMOS

512K bit electrically Programmable Read Only Memory

(EPROM). The device is organized into 64K words by

8 bits (64K bytes). Accessing individual bytes from an

address transition or from power-up (chip enable pin

going low) is accomplished in less than 90 ns. This

very high speed device allows the most sophisticated

microprocessors to run at full speed without the need

for WAIT states. CMOS design and processing

enables this part to be used in systems where reduced

power consumption and high reliability are require-

ments.

A complete family of packages is offered to provide the

most flexibility in applications. For surface mount appli-

cations, PLCC or SOIC packaging is available. Tape or

reel packaging is also available for PLCC or SOIC

packages.

2004 Microchip Technology Inc.

DS11173G-page 1

27C512A

TABLE 1-1:

Name

PIN FUNCTION TABLE

Function

1.0

ELECTRICAL CHARACTERISTICS

1.1

Maximum Ratings*

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

A0-A15

Address Inputs

VPP voltage w.r.t. VSS during

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

Chip Enable

OE/VPP

O0 - O7

VCC

Output Enable/Programming Voltage

Data Output

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

+5V Power Supply

Ground

VSS

*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.

No Connection; No Internal Connec-

tion

Not Used; No External Connection is

Allowed

TABLE 1-2:

READ OPERATION DC CHARACTERISTICS

VCC = +5V ±10%

Commercial:

Industrial:

Tamb = 0°C to +70°C

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

Input Leakage

all

ILI

-10

2.4

µA VIN = 0 to VCC

Output Voltages

Logic "1"

Logic "0"

VOH

VOL

IOH = - 400 µA

IOL = 2.1 mA

0.45

Output Leakage

all

—

ILO

-10

—

µA VOUT = 0V to VCC

Input Capacitance

CIN

pF VIN = 0V; Tamb = 25°C;

f = 1 MHz

Output Capacitance

all

—

COUT

—

pF VOUT = 0V; Tamb = 25°C;

f = 1 MHz

Power Supply Current,

Active

I, E

TTL input

ICC

—

mA VCC = 5.5V

mA 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

I, E

all

TTL input

CMOS input ICC(S)CMOS

ICC(S)TLL

—

µA CE = 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.

DS11173G-page 2

2004 Microchip Technology Inc.

27C512A

TABLE 1-3:

READ OPERATION AC CHARACTERISTICS

AC Testing Waveform:

Output Load:

VIH = 2.4V and VIL = .45V; VOH = 2.0V and VOL = 0.8V

1 TTL Load + 100 pF

Input Rise and Fall Times: 10 ns

Ambient Temperature:

Commercial:

Tamb = 0°C to +70°C

Industrial:

Extended (Automotive):

Tamb = -40°C to +85°C

Tamb = -40°C to +125°C

27C512-90*

Sym

27C512-10*

27C512-12

27C512-15

Parameter

Units Conditions

Min

Max

Min

Max

Min

Max

Min

Max

Address to Output

Delay

tACC

tCE

—

100

—

120

—

150

CE = OE/

VPP = VIL

CE to Output Delay

—

100

—

120

—

150

OE/VPP =

VIL

OE to Output Delay

tOE

—

CE = VIL

OE to Output High

Impedance

tOFF

Output Hold from

Address, CE or OE/

VPP, whichever

occurred first

tOH

—

*90/10 AC Testing Waveforms: VIH = 3.0V and VIL = 0V; VOH = 1.5V and VOL = 1.5V

Output Load: 1 TTL Load + 30 pF

FIGURE 1-1: READ WAVEFORMS

VIH

Address Valid

Address

VIL

VIH

VIL

tCE(2)

VIH

VIL

tOFF(1,3)

tOE(2)

tOH

VOH

VOL

Outputs

O0 - O7

High Z

Valid Output

tACC

Notes: (1) tOFF is specified for OE or CE, whichever occurs first

(2) OE may be delayed up to t CE - tOE after the falling edge of CE without impact on t

(3) This parameter is sampled and is not 100% tested.

2004 Microchip Technology Inc.

DS11173G-page 3

27C512A

TABLE 1-4:

PROGRAMMING DC CHARACTERISTICS

Ambient Temperature: Tamb = 25°C ± 5°C

VCC = 6.5V ± 0.25V, OE/VPP = VH = 13.0V ± 0.25V

Parameter

Status

Symbol

Min.

Max.

Units

Conditions (See Note 1)

Input Voltages

Logic “1”

Logic “0”

VIH

VIL

2.0

-0.1

VCC+1

0.8

Input Leakage

—

ILI

-10

µA

VIN = 0V to VCC

Output Voltages

Logic “1”

Logic “0”

VOH

VOL

2.4

—

IOH = -400 µA

IOL = 2.1 mA

0.45

VCC Current, program & verify

OE/VPP Current, program

A9 Product Identification

—

ICC2

IPP2

VID

—

CE = VIL

11.5

12.5

Note 1: VCC must be applied simultaneously or before VPP voltage on OE/VPP and removed simultaneously or after

the VPP voltage on OE/VPP.

TABLE 1-5:

PROGRAMMING AC CHARACTERISTICS

for Program, Program Verify

and Program Inhibit Modes

AC Testing Waveform: VIH=2.4V and VIL=0.45V; VOH=2.0V; VOL=0.8V

Ambient Temperature: 25°C ±5°C

VCC = 6.5V ± 0.25V, OE/VPP = VH = 13.0V ± 0.25 V

Parameter

Symbol

Min. Max. Units

Remarks

Address Set-Up Time

Data Set-Up Time

tAS

tDS

—

µs

Data Hold Time

tDH

—

Address Hold Time

Float Delay (2)

tAH

—

tDF

130

—

VCC Set-Up Time

tVCS

tPW

tCES

tOES

tOEH

tOR

Program Pulse Width (1)

CE Set-Up Time

105

—

100 µs typical

OE Set-Up Time

—

OE Hold Time

—

OE Recovery Time

OE /VPP Rise Time During Programming

—

tPRT

—

Note 1: For express algorithm, initial programming width tolerance is 100 µs ±5%.

2: This parameter is only sampled and not 100% teted. Output float is defined as the point where data is no

longer driven (see timing diagram).

DS11173G-page 4

2004 Microchip Technology Inc.

27C512A

FIGURE 1-2: PROGRAMMING WAVEFORMS (1)

Program

Verify

Address Stable

Data In Stable

Address

Data

Data Out Valid

tDF

(2)

6.5 V (3)

CC 5.0V

(2)

VCS

OES

CES

OEH

13.0 V (3)

OE/V PP

OPW

PRT

Notes: (1) The input timing reference level is 0.8V for V

IL and 2.0V for V IH

DF and tOE are characteristics of the device but must be accommodated by the programmer.

CC = 6.5V ±0.25V, V PP = V = 13.0V ±0.5V for express programming algorithm.

(2)

(3)

TABLE 1-6:

MODES

Operation Mode

OE/VPP

O0 - O7

Read

VIL

VIH

VIL

DOUT

DIN

Program

Program Verify

Program Inhibit

Standby

DOUT

High Z

Output Disable

Identity

VIH

VIL

Identity Code

X = Don’t Care

For Read operations, if the addresses are stable, the

address access time (tACC) is equal to the delay from

CE to output (tCE). Data is transferred to the output

after a delay (tOE) from the falling edge of OE/VPP.

1.2

Read Mode

(See Timing Diagrams and AC Characteristics)

Read Mode is accessed when

a) the CE pin is low to power up (enable) the chip

b) the OE/VPP pin is low to gate the data to the

output pins

2004 Microchip Technology Inc.

DS11173G-page 5

27C512A

Since the erased state is “1” in the array, programming

of “0” is required. The address to be programmed is set

via pins A0 - A15 and the data to be programmed is

presented to pins O0 - O7. When data and address are

stable, a low going pulse on the CE line programs that

location.

1.3

Standby Mode

The standby mode is entered when the CE pin is high,

and the program mode is not identified.

When this conditions are met, the supply current will

drop from 25 mA to 30 µA.

1.7

Verify

1.4

Output Enable OE/VPP

After the array has been programmed it must be veri-

fied to ensure all the bits have been correctly pro-

grammed. This mode is entered when all the following

conditions are met:

This multifunction pin eliminates bus connection in mul-

tiple bus microprocessor systems and the outputs go to

high impedance when:

• the OE/VPP pin is high (VIH).

a) VCC is at the proper level,

b) the OE/VPP pin is low, and

c) the CE line is low.

When a VH input is applied to this pin, it supplies the

programming voltage (VPP) to the device.

1.5

Erase Mode (UV Windowed Versions)

1.8

Inhibit

Windowed products offer the ability to erase the mem-

ory array. The memory matrix is erased to the all “1's”

state as a result of being exposed to ultraviolet light. To

ensure complete erasure, a dose of 15 watt-second/

cm²is required. This means that the device window

must be placed within one inch and directly underneath

an ultraviolet lamp with a wavelength of 2537 Ang-

stroms, intensity of 12,000 mW/cm²for approximately

40 minutes.

When programming multiple devices in parallel with dif-

ferent data, only CE needs to be under separate control

to each device. By pulsing the CE line low on a partic-

ular device, that device will be programmed; all other

devices with CE held high will not be programmed with

the data (although address and data will be available

on their input pins).

1.9

Identity Mode

1.6

Programming Mode

In this mode specific data is output which identifies the

manufacturer as Microchip Technology Inc. and the

device type. This mode is entered when Pin A9 is

taken to VH (11.5V to 12.5V). The CE and OE/VPP lines

must be at VIL. A0 is used to access any of the two

non-erasable bytes whose data appears on O0 through

O7.

The Express algorithm must be used for best results. It

has been developed to improve programming yields

and throughput times in a production environment. Up

to 10 100-microsecond pulses are applied until the byte

is verified. A flowchart of the Express algorithm is

shown in Figure 1-3.

Programming takes place when:

a) VCC is brought to the proper voltage,

b) OE/VPP is brought to the proper VH level, and

c) CE line is low.

Identity

Input

Output

0 O O O O O O O

Manufacturer

Device Type*

VIL

VIH

* Code subject to change

DS11173G-page 6

2004 Microchip Technology Inc.

27C512A

FIGURE 1-3: PROGRAMMING EXPRESS ALGORITHM

Conditions:

Start

Tamb = 25•C ±5•C

CC = 6.5 ±0.25V

PP = 13.0 ±0.25V

ADDR = First Location

CC = 6.5V

PP = 13.0V

X = 0

Program one 100

s pulse

Pass

Increment X

Verify

Byte

Fail

Yes

Device

Failed

X = 10 ?

Last

Yes

Address?

Increment Address

CC = VPP = 4.5V, 5.5V

All

Yes

bytes

= original

data?

Device

Passed

Device

Failed

2004 Microchip Technology Inc.

DS11173G-page 7

27C512A

27C512A Product Identification System

To order or to obtain information (e.g., on pricing or delivery),, please use listed part numbers, and refer to factory or listed sales offices.

27C512A

–

L = Plastic Leaded Chip Carrier

P = Plastic DIP (600 Mil)

Package:

SO = Plastic SOIC (300 Mil)

Temperature

Range:

Blank = 0°C to +70°C

I = -40°C to +85°C

E = -40°C to +125°C

90 = 90 ns

10 = 100 ns

12 = 120 ns

15 = 150 ns

Access

Time:

Device:

27C512A

512K (64K x 8) CMOS EPROM

DS11173G-page 8

2004 Microchip Technology Inc.

Note the following details of the code protection feature on Microchip devices:

•

Microchip products meet the specification contained in their particular Microchip Data Sheet.

•

Microchip believes that its family of products is one of the most secure families of its kind on the market today, when used in the

intended manner and under normal conditions.

•

There are dishonest and possibly illegal methods used to breach the code protection feature. All of these methods, to our

knowledge, require using the Microchip products in a manner outside the operating specifications contained in Microchip’s Data

Sheets. Most likely, the person doing so is engaged in theft of intellectual property.

•

Microchip is willing to work with the customer who is concerned about the integrity of their code.

Neither Microchip nor any other semiconductor manufacturer can guarantee the security of their code. Code protection does not

mean that we are guaranteeing the product as “unbreakable.”

Code protection is constantly evolving. We at Microchip are committed to continuously improving the code protection features of our

products. Attempts to break Microchip’s code protection feature may be a violation of the Digital Millennium Copyright Act. If such acts

allow unauthorized access to your software or other copyrighted work, you may have a right to sue for relief under that Act.

Information contained in this publication regarding device

applications and the like is intended through suggestion only

and may be superseded by updates. It is your responsibility to

ensure that your application meets with your specifications.

No representation or warranty is given and no liability is

assumed by Microchip Technology Incorporated with respect

to the accuracy or use of such information, or infringement of

patents or other intellectual property rights arising from such

use or otherwise. Use of Microchip’s products as critical

components in life support systems is not authorized except

with express written approval by Microchip. No licenses are

conveyed, implicitly or otherwise, under any intellectual

property rights.

Trademarks

The Microchip name and logo, the Microchip logo, Accuron,

dsPIC, KEELOQ, microID, MPLAB, PIC, PICmicro, PICSTART,

PRO MATE, PowerSmart, rfPIC, and SmartShunt are

registered trademarks of Microchip Technology Incorporated

in the U.S.A. and other countries.

AmpLab, FilterLab, MXDEV, MXLAB, PICMASTER, SEEVAL,

SmartSensor and The Embedded Control Solutions Company

are registered trademarks of Microchip Technology

Incorporated in the U.S.A.

Analog-for-the-Digital Age, Application Maestro, dsPICDEM,

dsPICDEM.net, dsPICworks, ECAN, ECONOMONITOR,

FanSense, FlexROM, fuzzyLAB, In-Circuit Serial

Programming, ICSP, ICEPIC, Migratable Memory, MPASM,

MPLIB, MPLINK, MPSIM, PICkit, PICDEM, PICDEM.net,

PICLAB, PICtail, PowerCal, PowerInfo, PowerMate,

PowerTool, rfLAB, rfPICDEM, Select Mode, Smart Serial,

SmartTel and Total Endurance are trademarks of Microchip

Technology Incorporated in the U.S.A. and other countries.

SQTP is a service mark of Microchip Technology Incorporated

in the U.S.A.

All other trademarks mentioned herein are property of their

respective companies.

Printed on recycled paper.

Microchip received ISO/TS-16949:2002 quality system certification for

its worldwide headquarters, design and wafer fabrication facilities in

Chandler and Tempe, Arizona and Mountain View, California in

October 2003. The Company’s quality system processes and

procedures are for its PICmicro^®8-bit MCUs, KEELOQ^®code hopping

devices, Serial EEPROMs, microperipherals, nonvolatile memory and

analog products. In addition, Microchip’s quality system for the design

and manufacture of development systems is ISO 9001:2000 certified.

 2004 Microchip Technology Inc.

DS11173G-page 9

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Tel: 82-2-554-7200 Fax: 82-2-558-5932 or

82-2-558-5934

07/12/04

 2004 Microchip Technology Inc.

27C512A-10E/SO [MICROCHIP]

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