FEATURES

128K x 8 organization

Single +5V power supply

+12.5V programming voltage

Fast access time: 45/55/70/90/100/120/150 ns

Totally static operation

Completely TTL compatible

Operating current: 30mA

Standby current: 100uA

Package type:

- 32 pin plastic DIP
- 32 pin SOP
- 32 pin PLCC
- 32 pin TSOP

REV. 5.9, NOV. 19, 2002

P/N: PM0234

GENERAL DESCRIPTION

The MX27C1000 is a 5V only, 1M-bit, One Time
Programmable Read Only Memory. It is organized as
128K words by 8 bits per word, operates from a single +
5 volt supply, has a static standby mode, and features
fast single address location programming. All program-
ming signals are TTL levels, requiring a single pulse. For
programming outside from the system, existing EPROM

programmers may be used. The MX27C1000 supports
an intelligent fast programming algorithm which can
result in programming time of less than thirty seconds.

This EPROM is packaged in industry standard 32 pin
dual-in-line packages, 32 lead PLCC , 32 lead SOP , and
32 lead TSOP packages.

PIN CONFIGURATIONS

PDIP/SOP

PLCC

TSOP

MX27C1000

1M-BIT [128K x 8] CMOS EPROM

A14

A13

A11

A10

GND

A12

A15

A16

VPP

VCC

PGM

MX27C1000

A11

A9
A8

A13
A14

PGM

VCC

VPP

A16
A15
A12

A7
A6
A5
A4

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

OE
A10
CE
Q7
Q6
Q5
Q4
Q3
GND
Q2
Q1
Q0
A0
A1
A2
A3

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

MX27C1000

VPP

A16

A15

A12

GND

VCC

PGM

A14

A13

A11

A10

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

PROGRAM INHIBIT MODE

Programming of multiple MX27C1000s 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 MX27C1000 may be common. A
TTL low-level program pulse applied to an MX27C1000
CE input with VPP = 12.5

0.5 V and PGM LOW will

program that MX27C1000. A high-level CE input inhibits
the other MX27C1000s from being programmed.

PROGRAM VERIFY MODE

Verification should be performed on the programmed bits
to determine that they were correctly programmed. The
verification should be performed with OE and CE at VIL,
PGM at VIH, and VPP at its programming voltage.

AUTO IDENTIFY MODE

The auto identify mode allows the reading out of a binary
code from an EPROM that will identify its manufacturer
and device type. This mode is intended for use by
programming equipment for the purpose of automatically
matching the device to be programmed with its
corresponding programming algorithm. This mode is
functional in the 25

C ambient temperature range

that is required when programming the MX27C1000.

BLOCK DIAGRAM

PIN DESCRIPTION

FUNCTIONAL DESCRIPTION

THE PROGRAMMING OF THE MX27C1000

When the MX27C1000 is delivered, or it is erased,
the chip has all 1M bits in the "ONE" or HIGH state.
"ZEROs" are loaded into the MX27C1000 through the
procedure of programming.

For programming, the data to be programmed is applied
with 8 bits in parallel to the data pins.

Vcc must be applied simultaneously or before Vpp, and
removed simultaneously or after Vpp. When
programming an MXIC EPROM, a 01.uF capacitor is
required across Vpp and ground to suppress spurious
voltage transients which may damage the device.

FAST PROGRAMMING

The device is set up in the fast programming mode when
the programming voltage VPP = 12.75V is applied, with
VCC = 6.25 V and PGM = VIL(or OE = VIH) (Algorithm
is shown in Figure 1). The programming is achieved
by applying a single TTL low level 100us 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 programming mode is completed, the data in
all address is verified at VCC = VPP = 5V

10%.

SYMBOL

PIN NAME

A0~A16

Address Input

Q0~Q7

Data Input/Output

Chip Enable Input

Output Enable Input

PGM

Programmable Enable Input

VPP

Program Supply Voltage

No Internal Connection

VCC

Power Supply Pin (+5V)

GND

Ground Pin

CONTROL

LOGIC

OUTPUT

BUFFERS

Q0~Q17

PGM

A0~A16

ADDRESS

INPUTS

Y-DECODER

X-DECODER

Y-SELECT

1M BIT

CELL

MAXTRIX

VCC

GND

VPP

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

the primary device-selecting function, while OE be made
a common connection to all devices in the array and
connected to the READ line from the system control
bus. 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.

SYSTEM CONSIDERATIONS

During the switch between active and standby
conditions, transient current peaks are produced on the
rising and falling edges of Chip Enable. The magnitude
of these transient current peaks is dependent on the
output capacitance loading of the device. At a minimum,
a 0.1 uF ceramic capacitor (high frequency, low inherent
inductance) should be used on each device between
VCC 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
used between VCC and GND for each eight devices.
The location of the capacitor should be close to where
the power supply is connected to the array.

To activate this mode, the programming equipment must
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.

Byte 0 ( A0 = VIL) represents the manufacturer code,
and byte 1 (A0 = VIH), the device identifier code. For
the MX27C1000, these two identifier bytes are given in
the Mode Select Table. All identifiers for manufacturer
and device codes will possess odd parity, with the MSB
(DQ7) defined as the parity bit.

READ MODE

The MX27C1000 has two control functions, both of which
must be logically satisfied in order to obtain data at the
outputs. Chip Enable (CE) is the power control and
should be used for device selection. Output Enable (OE)
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) is equal to the delay from CE to output (tCE).
Data is available at the outputs tQE after the falling edge
of OE, assuming that CE has been LOW and addresses
have been stable for at least tACC - tQE.

STANDBY MODE

The MX27C1000 has a CMOS standby mode which
reduces the maximum VCC current to 100 uA. It is
placed in CMOS standby when CE is at VCC

0.3 V.

The MX27C1000 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.

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.

It is recommended that CE be decoded and used as

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

NOTES:
1. VH = 12.0 V

0.5 V

2. X = Either VIH or VIL
3. A1 - A8 = A10 - A16 = VIL(For auto select)
4. See DC Programming Characteristics for VPP voltage during programming.

MODE SELECT TABLE

PINS

MODE

PGM

VPP

OUTPUTS

Read

VIL

VCC

DOUT

Output Disable

VIL

VIH

VCC

High Z

Standby (TTL)

VIH

VCC

High Z

Standby (CMOS)

VCC

0.3V

VCC

High Z

Program

VIL

VIH

VIL

VPP

DIN

Program Verify

VIL

VIH

VPP

DOUT

Program Inhibit

VIH

VPP

High Z

Manufacturer Code(3)

VIL

VCC

C2H

Device Code(27C1000)(3)

VIL

VIH

VCC

0EH

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

SWITCHING TEST CIRCUITS

SWITCHING TEST WAVEFORMS

2.0V

0.8V

TEST POINTS

INPUT

2.0V

0.8V

OUTPUT

AC TESTING: AC driving levels are 2.4V/0.4V for commercial grade, 3.0V/0V for industrial grade.

Input pulse rise and fall times are < 10ns.

AC driving levels

DEVICE

UNDER

TEST

DIODES = IN3064

OR EQUIVALENT

CL = 100 pF including jig capacitance(30pF for 45/55/70 ns parts)

6.2K ohm

1.8K ohm

+5V

1.5V

TEST POINTS

INPUT

1.5V

OUTPUT

AC TESTING: (1) AC driving levels are 3.0V/0V for both commercial grade and industrial grade.

Input pulse rise and fall times are < 10ns.

(2) For MX27C1000-45, MX27C1000-55, MX27C1000-70.

AC driving levels

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

CONDITIONS

VOH

Output High Voltage

2.4

IOH = -0.4mA

VOL

Output Low Voltage

0.4

IOL = 2.1mA

VIH

Input High Voltage

2.0

VCC + 0.5

VIL

Input Low Voltage

-0.2

0.8

ILI

Input Leakage Current

-10

VIN = 0 to 5.5V

ILO

Output Leakage Current

-10

VOUT = 0 to 5.5V

ICC3

VCC Power-Down Current

100

CE = VCC

0.3V

ICC2

VCC Standby Current

1.5

CE = VIH

ICC1

VCC Active Current

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

IPP

VPP Supply Current Read

CE = VIL, VPP = 5.5V

NOTICE:
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.

NOTICE:
Specifications contained within the following tables are sub-
ject to change.

DC CHARACTERISTICS

ABSOLUTE MAXIMUM RATINGS

RATING

VALUE

Ambient Operating Temperature -40

C to 125

Storage Temperature

-65

C to 125

Applied Input Voltage

-0.5V to 7.0V

Applied Output Voltage

-0.5V to VCC + 0.5V

VCC to Ground Potential

-0.5V to 7.0V

A9 & Vpp

-0.5V to 13.5V

DC/AC Operating Conditions for Read Operation

MX27C1000

-45

-55

-70

-90

-10

-12

-15

Operating

Commercial

C to 70

Temperature Industrial

-40

C to 85

C -40

C to 85

C -40

C to 85

C -40

C to 85

C -40

C to 85

C -40

C to 85

Automotive

-40

C to 125

C -40

C to 125

C -40

C to 125

C -40

C to 125

Vcc Power Supply

10%

CAPACITANCE

TA = 25

C, f = 1.0 MHz (Sampled only)

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

CONDITIONS

CIN

Input Capacitance

VIN = 0V

COUT

Output Capacitance

VOUT = 0V

Vpp

VPP Capacitance

VPP = 0V

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

DC PROGRAMMING CHARACTERISTICS

TA = 25

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

CONDITIONS

VOH

Output High Voltage

2.4

IOH = -0.40mA

VOL

Output Low Voltage

0.4

IOL = 2.1mA

VIH

Input High Voltage

2.0

VCC + 0.5

VIL

Input Low Voltage

-0.3

0.8

ILI

Input Leakage Current

-10

VIN = 0 to 5.5V

A9 Auto Select Voltage

11.5

12.5

ICC3

VCC Supply Current (Program & Verify)

IPP2

VPP Supply Current(Program)

CE = PGM = VIL,

OE = VIH

VCC1

Fast Programming Supply Voltage

6.00

6.50

VPP1

Fast Programming Voltage

12.5

13.0

27C1000-90 27C1000-10 27C1000-12 27C1000-15

SYMBOL PARAMETER

MIN.

MAX.

MIN.

MAX.

MIN.

MAX. MIN.

MAX. UNIT CONDITIONS

tACC

Address to Output Delay

100

120

150

CE=OE=VIL

tCE

Chip Enable to Output Delay

100

120

150

OE=VIL

tOE

Output Enable to Output Delay

CE=VIL

tDF

OE High to Output Float,

or CE High to Output Float

tOH

Output Hold from Address,

CE or OE which ever occurred first

AC CHARACTERISTICS

27C1000-45 27C1000-55 27C1000-70

SYMBOL PARAMETER

MIN.

MAX. MIN.

MAX.

UNIT

CONDITIONS

tACC

Address to Output Delay

CE = OE = VIL

tCE

Chip Enable to Output Delay

OE = VIL

tOE

Output Enable to Output Delay

CE = VIL

tDF

OE High to Output Float,

or CE High to Output Float

tOH

Output Hold from Address,

CE or OE which ever occurred first

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

AC PROGRAMMING CHARACTERISTICS

TA = 25

SYMBOL

PARAMETER

MIN.

MAX.

UNIT

tAS

Address Setup Time

2.0

tOES

OE Setup Time

2.0

tDS

Data Setup Time

2.0

tAH

Address Hold Time

tDH

Data Hold Time

2.0

tDFP

Output Enable to Output Float Delay

130

tVPS

VPP Setup Time

2.0

tPW

PGM Program Pulse Width

105

tVCS

VCC Setup Time

2.0

tCES

CE Setup Time

2.0

tOE

Data valid from OE

150

WAVEFORMS

READ CYCLE

ADDRESS

INPUTS

DATA

OUT

DATA ADDRESS

VALID DATA

tDF

tACC

tCE

tOE

tOH

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

PLASTIC PACKAGE

PART NO.

ACCESS TIME

OPERATING

STANDBY

OPERATING

PACKAGE

(ns)

Current MAX.(mA) Current MAX.(uA) TEMPERATURE

MX27C1000PC-45

100

C to 70

32 PIN DIP

MX27C1000MC-45

100

C to 70

32 Pin SOP

MX27C1000QC-45

100

C to 70

32 Pin PLCC

MX27C1000TC-45

100

C to 70

32 Pin TSOP

MX27C1000PC-55

100

C to 70

32 Pin DIP

MX27C1000MC-55

100

C to 70

32 Pin SOP

MX27C1000QC-55

100

C to 70

32 Pin PLCC

MX27C1000TC-55

100

C to 70

32 Pin TSOP

MX27C1000PC-70

100

C to 70

32 Pin DIP

MX27C1000MC-70

100

C to 70

32 Pin SOP

MX27C1000QC-70

100

C to 70

32 Pin PLCC

MX27C1000TC-70

100

C to 70

32 Pin TSOP

MX27C1000PC-90

100

C to 70

32 Pin DIP

MX27C1000MC-90

100

C to 70

32 Pin SOP

MX27C1000QC-90

100

C to 70

32 Pin PLCC

MX27C1000TC-90

100

C to 70

32 Pin TSOP

MX27C1000PC-10

100

C to 70

32 Pin DIP

MX27C1000MC-10

100

C to 70

32 Pin SOP

MX27C1000QC-10

100

C to 70

32 Pin PLCC

MX27C1000TC-10

100

C to 70

32 Pin TSOP

MX27C1000PC-12

120

100

C to 70

32 Pin DIP

MX27C1000MC-12

120

100

C to 70

32 Pin SOP

MX27C1000QC-12

120

100

C to 70

32 Pin PLCC

MX27C1000TC-12

120

100

C to 70

32 Pin TSOP

MX27C1000PC-15

150

100

C to 70

32 Pin DIP

MX27C1000MC-15

150

100

C to 70

32 Pin SOP

MX27C1000QC-15

150

100

C to 70

32 Pin PLCC

MX27C1000TC-15

150

100

C to 70

32 Pin TSOP

ORDER INFORMATION

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

ORDER INFORMATION (CONTINUED)

PLASTIC PACKAGE

PART NO.

ACCESS TIME

OPERATING

STANDBY

OPERATING

PACKAGE

(ns)

Current MAX.(mA) Current MAX.(uA) TEMPERATURE

MX27C1000PI-55

100

-40

C to 85

32 Pin DIP

MX27C1000MI-55

100

-40

C to 85

32 Pin SOP

MX27C1000QI-55

100

-40

C to 85

32 Pin PLCC

MX27C1000TI-55

100

-40

C to 85

32 Pin TSOP

MX27C1000PI-70

100

-40

C to 85

32 Pin DIP

MX27C1000MI-70

100

-40

C to 85

32 Pin SOP

MX27C1000QI-70

100

-40

C to 85

32 Pin PLCC

MX27C1000TI-70

100

-40

C to 85

32 Pin TSOP

MX27C1000PI-90

100

-40

C to 85

32 Pin DIP

MX27C1000MI-90

100

-40

C to 85

32 Pin SOP

MX27C1000QI-90

100

-40

C to 85

32 Pin PLCC

MX27C1000TI-90

100

-40

C to 85

32 Pin TSOP

MX27C1000PI-12

120

100

-40

C to 85

32 Pin DIP

MX27C1000MI-12

120

100

-40

C to 85

32 Pin SOP

MX27C1000QI-12

120

100

-40

C to 85

32 Pin PLCC

MX27C1000TI-12

120

100

-40

C to 85

32 Pin TSOP

MX27C1000PI-15

150

100

-40

C to 85

32 Pin SOP

MX27C1000MI-12

120

100

-40

C to 85

32 Pin SOP

MX27C1000QI-15

150

100

-40

C to 85

32 Pin PLCC

MX27C1000TI-15

150

100

-40

C to 85

32 Pin TSOP

MX27C1000TA-90

100

-40

C to 125

32 Pin TSOP

MX27C1000TA-12

120

100

-40

C to 125

32 Pin TSOP

MX27C1000

REV. 5.9, NOV. 19, 2002

P/N: PM0234

REVISION HISTORY

Revision No. Description

Page

Date

5.0

1) Reduce operating current change from 40mA to 30mA.

5/28/1997

2) Eliminate Interactive Programming Mode.
3) Add 27C1001 pin configuration.

5.1

IPP 100uA --> 10uA

8/08/1997

5.2

Change TSOP Orientation

4/09/1998

5.3

27C1000CDIP 70/90/100/120/150ns speed grades deleted from

5/07/1998

ordering information.

5.4

Add 55ns speed grade parts for industrial grade

P6,7,13

5/10/1999

5.5

Cancel 32pin ceramic DIP Package

P1,2,11,13,14

FEB/25/2000

5.6

Cancel the MX27C1001 Information

P1~4,6~8,11,12 JAN/18/2001

5.7

Cancel "Ultraviolet Erasable" wording in General Description

AUG/20/2001

To modify Package Information

P13~16

5.8

Add automotive grade

P7,12

NOV/09/2001

5.9

To modify Package Information

P13~16

NOV/19/2002

MX27C1000

ACRONIX

NTERNATIONAL

O.,

TD.

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

ACRONIX

MERICA,

NC.

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.

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