27C2000A-90_技术文档

PRELIMINARY

MX27C2000A

2M-BIT[256Kx8]CMOSEPROM

FEATURES

• 256Kx 8 organization

• Operatingcurrent:30mA

• Single +5V power supply

• +12.5Vprogrammingvoltage

• Fast access time:90/100/120/150 ns

• Totally static operation

• Standby current: 100uA

• Package type:

- 32 pin plastic DIP

- 32 pin PLCC

- 32 pin SOP

• Completely TTL compatible

- 32 pin TSOP

GENERAL DESCRIPTION

The MX27C2000A is a 5V only, 2M-bit, One Time

Programmable Read Only Memory. It is organized as

256K words by 8 bits per word, operates from a single +

5 volt supply, has a static standby mode, and features

fastsingleaddresslocationprogramming. Allprogram-

mingsignalsareTTLlevels,requiringasinglepulse.For

programmingoutsidefromthesystem,existingEPROM

programmersmaybeused. TheMX27C2000Asupports

aintelligentfastprogrammingalgorithmwhichcanresult

in programming time of less than one minute.

ThisOneTimeProgrammableReadOnly ispackagedin

industry standard 32 pin dual-in-line packages, 32 lead

PLCC, 32 lead SOP, 32 lead TSOP packages.

PIN CONFIGURATIONS

32 PDIP/SOP

32 PLCC

VCC

PGM

A17

A14

A13

A8

VPP

A16

A15

A12

A7

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

1

2

3

4

1

32

30

29

A14

A13

A8

5

A7

A6

A5

A4

A3

A2

A1

A0

Q0

4

5

A6

6

A9

A5

7

A9

A11

OE

A10

CE

A4

8

A3

9

A11

OE

A10

CE

Q7

9

25

MX27C2000A

A2

10

11

12

13

14

15

16

A1

Q7

A0

Q6

Q0

Q5

Q1

13

21

Q4

Q2

14

17

20

Q3

GND

32 TSOP

PIN DESCRIPTION

SYMBOL

A0~A17

Q0~Q7

CE

PIN NAME

Address Input

A11

A9

1

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

OE

A10

CE

Q7

Q6

Q5

Q4

Q3

GND

Q2

Q1

Q0

A0

2

A8

3

A13

A14

A17

PGM

VCC

VPP

A16

A15

A12

A7

4

DataInput/Output

Chip Enable Input

5

6

7

8

OE

Output Enable Input

ProgrammableEnableInput

ProgramSupplyVoltage

NoInternalConnection

Power Supply Pin (+5V)

GroundPin

MX27C2000A

9

10

11

12

13

14

15

16

PGM

VPP

NC

A6

A1

A5

A2

VCC

A4

A3

GND

REV. 2.0, AUG. 27, 2003

P/N: PM0708

1

MX27C2000A

BLOCK DIAGRAM

PROGRAM INHIBIT MODE

Programming of multiple MX27C2000As in parallel with

different data is also easily accomplished by using the

Program Inhibit Mode. Except for CE and OE, all like

inputs of the parallel MX27C2000A may be common. A

TTLlow-levelprogrampulseappliedtoanMX27C2000A

CE input with VPP = 12.5 ±0.5 V and PGM LOW will

program that MX27C2000A. A high-level CE input

inhibitstheotherMX27C2000A frombeingprogrammed.

CE

CONTROL

OUTPUT

Q0~Q7

PGM

LOGIC

OE

BUFFERS

.

Y-DECODER

X-DECODER

Y-SELECT

A0~A17

ADDRESS

INPUTS

2M BIT

CELL

MAXTRIX

PROGRAM VERIFY MODE

VCC

VSS

VPP

Verificationshouldbeperformedontheprogrammedbits

to determine that they were correctly programmed. The

verificationshouldbeperformedwithOEandCE atVIL,

PGM at VIH, and VPP at its programming voltage.

FUNCTIONAL DESCRIPTION

AUTO IDENTIFY MODE

THE PROGRAMMING OF THE MX27C2000A

Theautoidentifymodeallowsthereadingoutofabinary

code from an EPROM that will identify its manufacturer

and device type. This mode is intended for use by

programmingequipmentforthepurposeofautomatically

matching the device to be programmed with its

corresponding programming algorithm. This mode is

functional in the 25°C ±5°C ambient temperature range

thatisrequiredwhenprogrammingtheMX27C2000A.

When theMX27C2000A isdelivered,or it iserased, the

chip has all 2M bits in the "ONE", or HIGH state.

"ZEROs" are loaded into the MX27C2000A through the

procedureofprogramming.

Forprogramming, thedatatobeprogrammedisapplied

with 8 bits in parallel to the data pins.

VCCmustbeappliedsimultaneouslyorbeforeVPP,and

removed simultaneously or after VPP. When

programming an MXIC OTP ROM, a 0.1uF capacitor is

required across VPP and ground to suppress spurious

voltage transients which may damage the device.

Toactivatethismode,theprogrammingequipmentmust

force 12.0±0.5 V on address line A9 of the device. Two

identifier bytes may then be sequenced from the device

outputs by toggling address line A0 from VIL to VIH. All

other address lines must be held at VIL during auto

identify mode.

FAST PROGRAMMING

Byte0(A0=VIL)representsthemanufacturercode,and

byte 1 (A0 = VIH), the device identifier code. For the

MX27C2000A,thesetwoidentifierbytesaregiveninthe

Mode Select Table. All identifiers for manufacturer and

devicecodeswillpossessoddparity, withtheMSB(Q7)

defined as the parity bit.

Thedeviceissetupinthefastprogrammingmodewhen

the programming voltage VPP = 12.75V is applied, with

VCC = 6.25V and PGM = VIH (Algorithm is shown in

Figure 1). The programming is achieved by applying a

single TTL low level 10us pulse to the PGM input after

addresses and data line are stable. If the data is not

verified, an additional pulse is applied for a maximum of

25 pulses. This process is repeated while sequencing

through each address of the device. When the

programmingmodeiscompleted,thedatainalladdress

is verified at VCC = VPP = 5V ±10%.

READ MODE

The MX27C2000A has two control functions, both of

which must be logically satisfied in order to obtain data

attheoutputs. ChipEnable(CE)isthepowercontroland

shouldbeusedfordeviceselection. OutputEnable(OE)

REV. 2.0, AUG. 27, 2003

P/N: PM0708

2

MX27C2000A

ItisrecommendedthatCEbedecodedandusedasthe

primary device-selecting function, while OE be made a

common connection to all devices in the array and

connectedtotheREADlinefromthesystemcontrolbus.

This assures that all deselected memory devices are in

their low-power standby mode and that the output pins

are only active when data is desired from a particular

memory device.

is the output control and should be used to gate data to

the output pins, independent of device selection.

Assuming that addresses are stable, address access

time(tACC)isequaltothedelayfromCEtooutput(tCE).

DataisavailableattheoutputstOEafterthefallingedge

of OE, assuming that CE has been LOW and addresses

have been stable for at least tACC - tOE.

STANDBY MODE

SYSTEM CONSIDERATIONS

The MX27C2000A has a CMOS standby mode which

reduces the maximum VCC current to 100 uA. It is

placedinCMOSstandbywhenCEisatVCC±0.3V. The

MX27C2000A also has a TTL-standby mode which

reduces the maximum VCC current to 1.5 mA. It is

placed in TTL-standby when CE is at VIH. When in

standby mode, the outputs are in a high-impedance

state, independent of the OE input.

During the switch between active and standby

conditions, transientcurrentpeaksareproducedonthe

rising and falling edges of Chip Enable. The magnitude

of these transient current peaks is dependent on the

outputcapacitanceloadingofthedevice. Ataminimum,

a0.1uFceramiccapacitor(highfrequency,lowinherent

inductance)shouldbeusedoneachdevicebetweenVcc

and GND to minimize transient effects. In addition, to

overcome the voltage drop caused by the inductive

effects of the printed circuit board traces on EPROM

arrays, a 4.7 uF bulk electrolytic capacitor should be

usedbetweenVCCandGNDforeacheightdevices. The

location of the capacitor should be close to where the

power supply is connected to the array.

TWO-LINE OUTPUT CONTROL FUNCTION

To accommodate multiple memory connections, a two-

line control function is provided to allow for:

1. Low memory power dissipation,

2. Assurance that output bus contention will not

occur.

MODE SELECT TABLE

PINS

MODE

CE

OE

VIL

VIH

X

PGM

X

A0

X

A9

X

VPP

VCC

VPP

VCC

OUTPUTS

DOUT

High Z

DIN

Read

VIL

OutputDisable

Standby(TTL)

Standby(CMOS)

Program

VIL

X

VIH

X

VCC±0.3V

VIL

X

VIH

VIL

X

VIL

VIH

X

ProgramVerify

ProgramInhibit

ManufacturerCode(3)

DeviceCode(3)

VIL

X

DOUT

High Z

C2H

VIH

X

VIL

X

VIL

VIH

VH

VIL

X

C3H

NOTES:

1.VH = 12.0 V ±0.5 V

2.X = Either VIH or VIL

3.A1 - A8 = A10 - A17 = VIL(For auto select)

4.See DC Programming Characteristics for VPP voltage during programming.

REV. 2.0, AUG. 27, 2003

P/N: PM0708

3

MX27C2000A

FIGURE 1. FAST PROGRAMMING FLOWCHART

START

ADDRESS = FIRST LOCATION

VCC = 6.25V

VPP = 12.75V

X = 0

PROGRAM ONE 10us PULSE

INCREMENT X

INTERACTIVE

SECTION

YES

X = 25?

NO

FAIL

VERIFY BYTE

?

PASS

NO

LAST ADDRESS

INCREMENT ADDRESS

FAIL

YES

VCC = VPP = 5.25V

VERIFY SECTION

FAIL

DEVICE FAILED

VERIFY ALL BYTES

?

PASS

DEVICE PASSED

REV. 2.0, AUG. 27, 2003

P/N: PM0708

4

MX27C2000A

SWITCHING TEST CIRCUITS

DEVICE

UNDER

TEST

1.8K ohm

+5V

DIODES = IN3064

OR EQUIVALENT

CL

6.2K ohm

CL = 100 pF including jig capacitance

SWITCHING TEST WAVEFORMS

2.0V

0.8V

2.0V

TEST POINTS

AC driving levels

0.8V

OUTPUT

INPUT

AC TESTING: AC driving levels are 2.4V/0.4V for commercial grade.

Input pulse rise and fall times are equal to or less than 10ns.

REV. 2.0, AUG. 27, 2003

P/N: PM0708

5

MX27C2000A

NOTICE:

ABSOLUTE MAXIMUM RATINGS

Stresses greater than those listed under ABSOLUTE

MAXIMUM RATINGS may cause permanent damage to the

device. This is a stress rating only and functional operation

of the device at these or any other conditions above those

indicated in the operational sections of this specification is

not implied. Exposure to absolute maximum rating

conditions for extended period may affect reliability.

RATING

VALUE

Ambient Operating Temperature -40^oC to 85^oC

Storage Temperature

Applied Input Voltage

Applied Output Voltage

VCC to Ground Potential

A9 & VPP

-65^oC to 125^oC

-0.5V to 7.0V

-0.5V to VCC + 0.5V

-0.5V to 7.0V

NOTICE:

Specifications contained within the following tables are

subject to change.

-0.5V to 13.5V

DC/AC OPERATING CONDITION FOR READ OPERATION

MX27C2000A

-10

-90

-12

-15

OperatingTemperature Industrial

Vcc Power Supply

-40°C to 85°C

5V ±10%

-40°C to 85°C

5V ±10%

-40°C to 85°C

5V ±10%

-40°C to 85°C

5V ±10%

DC CHARACTERISTICS

SYMBOL PARAMETER

MIN.

MAX.

UNIT

CONDITIONS

VOH

VOL

VIH

VIL

OutputHighVoltage

OutputLowVoltage

Input High Voltage

Input Low Voltage

InputLeakageCurrent

2.4

V

IOH = -0.4mA

IOL = 2.1mA

0.4

V

2.0

-0.3

-10

VCC + 0.5

V

0.8

10

V

ILI

uA

mA

uA

VIN = 0 to 5.5V

ILO

OutputLeakageCurrent

VCCPower-DownCurrent

VCCStandbyCurrent

VCC Active Current

-10

10

VOUT = 0 to 5.5V

ICC3

ICC2

ICC1

IPP

100

1.5

30

CE = VCC ±0.3V

CE = VIH

CE = VIL, f=5MHz, Iout = 0mA

CE = OE = VIL, VPP = 5.5V

VPP Supply Current Read

10

CAPACITANCE TA = 25^oC, f = 1.0 MHz (Sampled only)

SYMBOL

CIN

PARAMETER

TYP.

8

MAX.

12

UNIT

CONDITIONS

VIN = 0V

InputCapacitance

OutputCapacitance

VPP Capacitance

pF

COUT

CVPP

8

12

VOUT = 0V

VPP = 0V

18

25

REV. 2.0, AUG. 27, 2003

P/N: PM0708

6

MX27C2000A

AC CHARACTERISTICS

27C2000A-90 27C2000A-10 27C2000A-12 27C2000A-15

MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX. Unit Conditions

Symbol PARAMETER

tACC

tCE

tOE

tDF

Address to Output Delay

90

40

25

100

45

120

50

150 ns

CE=OE=VIL

OE=VIL

Chip Enable to Output Delay

Output Enable to Output Delay

OE High to Output Float,

or CE High to Output Float

65

50

ns

CE=VIL

0

35

0

35

0

tOH

Output Hold from Address,CE or

OE which ever occurred first

0

ns

DC PROGRAMMING CHARACTERISTICS TA = 25^oC ±5^oC

SYMBOL PARAMETER

MIN.

MAX.

UNIT

CONDITIONS

IOH = -0.40mA

IOL = 2.1mA

VOH

VOL

VIH

VIL

OutputHighVoltage

2.4

V

OutputLowVoltage

0.4

V

Input High Voltage

2.0

VCC + 0.5

V

Input Low Voltage

-0.3

-10

0.8

10

V

ILI

InputLeakageCurrent

uA

V

VIN = 0 to 5.5V

VH

A9 Auto Select Voltage

VCC Supply Current (Program & Verify)

VPPSupplyCurrent(Program)

11.5

12.5

50

ICC3

IPP2

mA

30

CE = PGM = VIL,

OE = VIH

VCC1

VPP1

Fast Programming Supply Voltage

FastProgrammingVoltage

6.00

12.5

6.50

13.0

V

AC PROGRAMMING CHARACTERISTICS TA = 25^oC ±5^oC

SYMBOL

tAS

PARAMETER

MIN.

2.0

0

MAX.

UNIT

us

ns

us

ns

CONDITIONS

Address Setup Time

OE Setup Time

tOES

tDS

Data Setup Time

tAH

Address Hold Time

Data Hold Time

tDH

2.0

0

tDFP

tVPS

tPW

Output Enable to Output Float Delay

VPP Setup Time

130

50

2.0

10

PGM Program Pulse Width

VCC Setup Time

tVCS

tCES

tOE

2.0

CE Setup Time

Data valid from OE

150

REV. 2.0, AUG. 27, 2003

P/N: PM0708

7

MX27C2000A

WAVEFORMS

READ CYCLE

ADDRESS

INPUTS

DATA ADDRESS

tACC

CE

tCE

OE

tDF

DATA

OUT

VALID DATA

tOE

tOH

FAST PROGRAMMING ALGORITHM WAVEFORM

PROGRAM

PROGRAM VERIFY

VIH

Addresses

VIL

tAH

tAS

Hi-z

DATA OUT VALID

DATA

VPP

DATA IN STABLE

tDFP

tDS

tDH

VPP1

VCC

tVPS

tVCS

VCC1

VCC

CE

VIH

VIL

tCES

VIH

VIL

PGM

OE

tOE

Max

tOES

tPW

VIH

VIL

REV. 2.0, AUG. 27, 2003

P/N: PM0708

8

MX27C2000A

ORDERING INFORMATION

PLASTICPACKAGE

PART NO.

ACCESS TIME

(ns)

90

OPERATING

STANDBY

OPERATING

TEMPERATURE

0°C to 70°C

-40°C to 85°C

PACKAGE

Current MAX.(mA)

Current MAX.(uA)

100

MX27C2000APC-90

MX27C2000AQC-90

MX27C2000AMC-90

MX27C2000ATC-90

MX27C2000APC-10

MX27C2000AQC-10

MX27C2000AMC-10

MX27C2000ATC-10

MX27C2000APC-12

MX27C2000AQC-12

MX27C2000AMC-12

MX27C2000ATC-12

MX27C2000APC-15

MX27C2000AQC-15

MX27C2000AMC-15

MX27C2000ATC-15

MX27C2000API-90

MX27C2000AQI-90

MX27C2000AMI-90

MX27C2000ATI-90

MX27C2000API-10

MX27C2000AQI-10

MX27C2000AMI-10

MX27C2000ATI-10

MX27C2000API-12

MX27C2000AQI-12

MX27C2000AMI-12

MX27C2000ATI-12

MX27C2000API-15

MX27C2000AQI-15

MX27C2000AMI-15

MX27C2000ATI-15

30

32 Pin DIP

90

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

32 Pin DIP

90

100

90

100

120

150

90

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

32 Pin DIP

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

32 Pin DIP

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

32 Pin DIP

100

90

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

32 Pin DIP

90

100

90

100

120

150

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

32 Pin DIP

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

32 Pin DIP

100

32 Pin PLCC

32 Pin SOP

32 Pin TSOP

100

REV. 2.0, AUG. 27, 2003

P/N: PM0708

9

MX27C2000A

PACKAGE INFORMATION

REV. 2.0, AUG. 27, 2003

P/N: PM0708

10

MX27C2000A

REV. 2.0, AUG. 27, 2003

P/N: PM0708

11

MX27C2000A

REV. 2.0, AUG. 27, 2003

P/N: PM0708

12

MX27C2000A

REV. 2.0, AUG. 27, 2003

P/N: PM0708

13

MX27C2000A

REVISION HISTORY

RevisionNo. Description

Page

Date

1.1

Cencel70/90nsspeed

Cancel SOP/TSOP package type

Add "Advance Information"

P1,6,7,10

P1,6,7,10,11

P1

MAY/11/2000

1.2

ModifyFastProgrammingFlowchart--ProgramOne100usPulse

-->10usPulse

P4

JUL/06/2000

ModifyACProgrammingCharacteristics--tPW95-->10(MIN.)

Cencel150nsspeed

AddtPW(MAX.):50us

P8

1.3

1.4

1.5

P1,5,6,7,10 JUL/13/2000

P7

P1

SEP/01/2000

SEP/08/2000

Modify Fast access time:100-->90

ModifyAbsoluteNaximumRatings--AmbientOperationTemperature P6

0°C to 70°C --> -40°C to 85°C

Modify AC Characteristics tACC&tEC:100-->90 ; tOE:45-->40 ;

tDF:30-->25

P7

AddOrderInformation-->-40°Cto85°COperatingTemperature

Change device ID code from 21H to C3H

To change data sheet title to Preliminary

P9

P3

P1

1.6

1.7

DEC/28/2000

MAR/15/2001

To added access time 100/150ns and 32SOP/TSOP type package P1,6,7,9

1.8

1.9

2.0

To modify Package Information

To modify 32-PLCC package information

P10~13

P12

JUL/19/2001

NOV/20/2002

AUG/27/2003

A1: from 0.50mm(0.020 inch)/nom. to 0.58mm(0.023 inch)/nom.

from 0.66mm(0.026 inch)/nom. to 0.81mm(0.032 inch)/nom.

REV. 2.0, AUG. 27, 2003

P/N: PM0708

14

MX27C2000A

MACRONIX INTERNATIONAL CO., LTD.

HEADQUARTERS:

TEL:+886-3-578-6688

FAX:+886-3-563-2888

EUROPE OFFICE:

TEL:+32-2-456-8020

FAX:+32-2-456-8021

JAPAN OFFICE:

TEL:+81-44-246-9100

FAX:+81-44-246-9105

SINGAPORE OFFICE:

TEL:+65-348-8385

FAX:+65-348-8096

TAIPEI OFFICE:

TEL:+886-2-2509-3300

FAX:+886-2-2509-2200

MACRONIX AMERICA, INC.

TEL:+1-408-453-8088

FAX:+1-408-453-8488

CHICAGO OFFICE:

TEL:+1-847-963-1900

FAX:+1-847-963-1909

http : //www.macronix.com

MACRONIX INTERNATIONAL CO., LTD. reserves the right to change product and specifications without notice.


型号：	27C2000A-90
厂家：	MACRONIX INTERNATIONAL
描述：	2M-BIT [256K x 8] CMOS EPROM 2M- BIT [ 256K ×8 ] CMOS EPROM 可编程只读存储器电动程控只读存储器
文件：	总15页 (文件大小：960K)
中文：	中文翻译
下载：	下载PDF数据表文档文件

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