Rainbow Electronics AT27C1024 User Manual

Features

•

Fast Read Access Time - 45 ns

•

Low-Power CMOS Operation

– 100 µA max. Standby
– 30 mA max. Active at 5 MHz

•

JEDEC Standard Packages

– 40-Lead 600-mil PDIP
– 44-Lead PLCC
– 40-Lead VSOP (10 mm x 14 mm)

•

Direct Upgrade from 512K (AT27C516) EPRO M

±±±±

•

5V

10% Power Supply

•

High-Reliability CMOS Technology

– 2000V ESD Protection
– 200 mA Latchup Immunity

•

Rapid™ Programming Algorithm - 100 µs/word (typical)

•

CMOS and TTL Compatible Inputs and Outputs

•

Integrated Product Identification Code

•

Commercial, Industrial and Automotive Temperature Ranges

AT27C1024

1-Megabit
(64K x 16)
OTP EPROM

Description

The AT27C1024 is a low-power, high-performance 1,048,576 bit one-time program­mable read only memory (OTP EPROM) organized 64K by 16 bits. It requires only
one 5V power supply in normal read mode operation. Any word can be accessed in
less than 45 ns, eliminating the need for speed reducing WAIT states. The by-16 orga-

(continued)

Pin Configurations

Pin Name Function

A0 - A15 Addresses
O0 - O15 Outputs
CE
OE Output En able
PGM
NC No Connect

Note: Both GND pins must be connected.

Chip Enable

Program Strobe

VSOP Top View

Type 1

PDIP Top View

1

VPP

O15
O14
O13
O12
O11
O10

GND

CE

O9
O8

O7
O6
O5
O4
O3
O2
O1
O0
OE

40

2

39

3

38

4

37

5

36

6

35

7

34

8

33

9

32

10

31

11

30

12

29

13

28

14

27

15

26

16

25

17

24

18

23

19

22

20

21

VCC
PGM
NC
A15
A14
A13
A12
A11
A10
A9
GND
A8
A7
A6
A5
A4
A3
A2
A1
A0

AT27C1024

A10
A11
A12
A13
A14
A15

PGM

VCC
VPP

O15
O14
O13
O12
O11
O10

1

A9

2
3
4
5
6
7
8

NC

9
10
11
12

CE

13
14
15
16
17
18
19

O9

20

O8

40

GND

39

A8

38

A7

37

A6

36

A5

35

A4

34

A3

33

A2

32

A1

31

A0

30

OE

29

O0

28

O1

27

A2

26

O3

25

O4

24

O5

23

O6

22

O7

21

GND

PLCC Top View

O13

O14

O15CEVPPNCVCC

65432

7

O12

8

O11

9

O10

10

O9

11

O8

12

GND

13

NC

14

O7

15

O6

16

O5

17

O4

1819202122232425262728

O3O2O1

O0

1

NC

OE

PGMNCA15

4443424140

A0A1A2A3A4

A14

39
38
37
36
35
34
33
32
31
30
29

A13
A12
A11
A10
A9
GND
NC
A8
A7
A6
A5

Rev. 0019J–07/98

1

nization m ake t his p art id eal fo r high -per form ance 16- an d
32-bit microprocessor systems.

In read mode, the AT27C1024 typically consumes 15 mA.
Standby mode supply current is typically less than 10 µA.

The AT27C1024 is available in industry standard J EDEC­approved one- time progra mmable (OTP) pl astic PDIP,
PLCC, and VSOP packages. The device features two-line
control (CE
systems.

With high density 64K word storage capability, the
AT27C1024 allows firmware to be stored reliably and to be
accessed by the system without the delays of mass storage
media.

Atmel’s 27C1024 have additional features to ensure high
quality and efficient production use. The Rapid
ming Algori thm reduc es the time require d to prog ram the
part and guarantees reliable programming. Programming
time is typically only 100 µs/word. The Integrated Product
Identification Code electronica lly identifi es the devic e and
manufacturer. This feature is used by industry standard

, OE) to eliminate bus conte ntion in high-sp eed

™

Program-

Block Diagram

programming eq uipme nt to sele ct the prop er program ming
algorithms and voltages.

System Considerations

Switching between active and standby conditions via the
Chip Enable pin may produ ce tra ns ien t vo ltag e ex cu rs i ons .
Unless accommodated by the system design, these tran­sients may exceed data sheet limits, resulting in device
non-conforma nce. At a min imum, a 0. 1 µF high fr equency ,
low inherent inductance, ceramic capacitor should be uti­lized for each device. This capacitor should be connected
between the V
close to the device as possible. Additionally, to stabilize the
supply voltage level on printed circuit boards with large
EPROM arrays, a 4.7 µF bulk electrolytic capacitor should
be utilized, again connected between the V
terminals. This capacitor should be positioned as close as
possible to the point where the power supply is connected
to the array.

and Ground terminals of the device, as

CC

and Ground

CC

2

AT27C1024

Absolute Maximum Ratings*

Temperature Under Bias............................... -55°C to + 125°C

Storage Temperature.................................... -65°C to + 150°C

Voltage on Any Pin with

Respect to Ground ........................................-2.0V to + 7.0V

Voltage on A9 with

Respect to Ground .....................................-2.0V to + 14.0V

AT27C1024

*NOTICE: Stresses beyond those listed under “Abso lute Maxi-

mum 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 condi-

(1)

(1)

tions beyond those indicated in the operational sec­tions of this specification is not implied. Exposure to
absolute maximum rating conditions for extended
periods may affect device reliability.

VPP Supply Voltage with

Respect to Ground ......................................-2.0V to + 14.0V

(1)

Note: 1. Minimum voltage is -0.6V dc which may undershoot to -2.0V for pulses of less than 20 ns. Maximum output pin voltage is

+ 0.75V dc which may overshoot to +7.0V for pulses of less than 20 ns.

V

CC

Operating Modes

Mode/Pin CE OE PGM Ai V

Read V

IL

Output Disable X V
Standby V
Rapid Program

(2)

PGM Verify V
PGM Inhibit V

Product Identification

(4)

IH

V

IL

IL

IH

V

IL

V

IL

IH

XX X X

V

IH

V

IL

XX X V

V

IL

(1)

X

Ai X D

XXXHigh Z

V

IL

V

IH

X

Ai V
Ai V

H

or VIL

IH

(3)

A9 = V

A0 = V

A1 - A15 = V

IL

Notes: 1. X can be VIL or VIH.

2. Refer to Progra mming Characteristics.
= 12.0 ± 0.5V.

3. V

H

4. Two identifier words may be selected. All Ai inputs are held low (VIL), except A9 which is set to VH and A0 which is toggled

low (V

) to select the Manufacturer’s Identification word and high (VIH) to select the Device Code word.

IL

5. Standby V

current (ISB) is specified with VPP = VCC. V

CC

> VPP will cause a slight increase in ISB.

CC

V

PP

(5)

PP

PP

PP

CC

Outputs

OUT

High Z

D

IN

D

OUT

High Z

Identification Code

3

DC and AC Operating Conditions for Read Operation

AT27C1024

-45 -55 -70 -90 -12 -15

°

C - 70°C0

°

C - 85°C-40

Operating
Temp. (Case)

Com. 0°C - 70°C0
Ind. -40°C - 85°C-40
Auto. -40°C - 125°C-40

V

Power Supply 5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10% 5V ± 10%

CC

°

C - 70°C0

°

C - 85°C-40

°

C - 70°C0

°

C - 85°C-40

°

C - 70°C0

°

C - 85°C-40

°

C - 125°C-40

°

C - 70°C

°

C - 85°C

°

C - 125°C

DC and Operating Characteristics for Read Operation

Symbol Parameter Condition Min Max Units

I

LI

Input Load Current VIN = 0V to V

CC

Com., Ind.
Auto.
Com., Ind.

I

LO

(2)

I

PP1

I

SB

I

CC

V

IL

V

IH

V

OL

V

OH

Output Leakage Current V

(1))

V

Read/Standby Current VPP = V

PP

(1)

V

Standby Current

CC

VCC Active Current f = 5 MHz, I

= 0V to V

OUT

(CMOS), CE = V

I

SB1

I

(TTL), CE = 2.0 to VCC + 0.5V 1 mA

SB2

CC

OUT

CC

±

0.3V 100 µA

CC

= 0 mA, CE = V

Auto.

IL

Input Low Voltage -0.6 0.8 V
Input High Voltage 2.0 V
Output Low Voltage IOL = 2.1 mA 0.4 V
Output High Voltage I

= -400 µA2.4V

OH

Notes: 1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP..

2. VPP may be connected directly to VCC, except d uring p r og r amming. The supply current w o ul d th en be the sum of ICC and IPP..

±

1µA

±

5µA

±

5µA

±

10 µA

10 µA

30 mA

+ 0.5 V

CC

AC Characteristics for Read Operation

-45 -55 -70 -90 -12 -15

Symbol Parameter Condition

t
t
t

t

t

ACC

CE

OE

DF

OH

(3)

(2)

(2)(3)

(4)(5)

Address to Output Delay CE = OE = V
CE to Output Delay OE = V
OE to Output Delay CE = V

IL

IL

OE or CE High to Output Float, whichever
occurred first

Output Hold from Address, CE or OE,
whichever occurred first

Note: 2, 3, 4, 5. - see AC Waveforms for Read Operation.

4

AT27C1024

Min Max Min Max Min Max Min Max Min Max Min Max

IL

777000 ns

AT27C1024

Units

45 55 70 90 120 150 ns
45 55 70 90 120 150 ns
20 25 25 30 35 50 ns

20 25 25 30 30 40 ns

AT27C1024

AC Waveforms for Read Operation

Notes: 1. Timing measurement reference level is 1.5V for -45 and -55 devices. Input AC drive levels are VIL = 0.0V and VIH = 3.0V.

Timing measurement reference levels for all other speed grades are V

= 0.45V and VIH = 2.4V.

V

IL

2. OE

3. OE may be delayed up to t

4. This parameter is only sampled and is not 100% tested.

5. Output float is defined as the point when data is no longer driven.

may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE.

- tOE after the address is valid without impact on t

ACC

(1)

= 0.8V and VOH = 2.0V. Input AC drive levels are

OL

.

ACC

Pin Capacitance

f = 1 MHz, T = 25°C

Symbol Ty p Max Units Conditions

C

IN

C

OUT

Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.

Input Test Waveforms and Measurement Levels

(1)

410pFV
812pFV

IN

OUT

= 0V

= 0V

Output Test Load

For -45 and -55
Devices Only

For -70 and slow e r
Devices Only

Note: CL = 100 pF including jig

capacitance except -45 and -55
devices, where CL = 30 pF.

5

Programming Waveforms

(1)

Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH.

2. tOE and t

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

DFP

3. When programming the AT27C1024 a 0.1 µF capacitor is required across VPP and ground to suppress sputious voltage

transients.

DC Programming Characteristics

TA = 25 ± 5°C, V

Symbol Parameter T est Condit ions

I

LI

V

IL

V

IH

V

OL

V

OH

I

CC2

I

PP2

V

ID

= 6.5 ± 0.25V, VPP = 13.0 ± 0.25V

CC

Input Load Current V

= VIL, V

IN

IH

Input Low Level -0.6 0.8 V
Input High Level 2.0 V
Output Low Voltage I
Output High Voltage I

= 2.1 mA 0.4 V

OL

= -400 µA 2.4 V

OH

VCC Supply Current (Program and Verify) 50 mA
VPP Supply Current CE = PGM = V
A9 Product Identification Voltage 11.5 12.5 V

Limits

UnitsMin Max

10 µA

±

+ 0.1 V

CC

IL

30 mA

6

AT27C1024

AC Programming Characteristics

TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V

Symbol Parameter Test Conditions

AT27C1024

Limits

(1)

UnitsMin Max

t

AS

t

CES

t

OES

t

DS

t

AH

t

DH

t

DFP

t

VPS

t

VCS

t

PW

t

OE

t

PRT

Address Setup Time
CE Setup Time 2
OE Setup Time 2
Data Setup Time 2
Address Hold Time 0
Data Hold Time 2
OE High to Output Float Delay

(2)

VPP Setup Time 2

Input Rise and Fall Times

(10% to 90%) 20ns

Input Pulse Levels

0.45V to 2.4V

Input Timing Reference Level

0.8V to 2.0 V

VCC Setup Time 2
PGM Program Pulse Width

(3)

Data Valid from OE 150 ns

Output Timing Reference Level

0.8V to 2.0 V

VPP Pulse Rise Time During
Programming

2

0 130 ns

95 105

50 ns

Notes: 1. VCC must be applied simultaneously or before VPP and removed simultaneously or after VPP.

2. This parameter i s only sam pled a nd is n ot 100 % teste d. Out put Flo at is d efined as the point where dat a is no lo nger driv e n—

see timing diagram.

3. Program Pulse width tolerance is 100

µsec

±

5%.

Atmel’s 27C1024 Integrated Product Identification Code

µ

s

µ

s

µ

s

µ

s

µ

s

µ

s

µ

s

µ

s

µ

s

Pins

Codes

Hex

DataA0 O15-O8 O7 O6 O5 O4 O3 O2 O1 O0

Manufacturer 0 0 00011110001E
Device Type 1 0 1111000100F1

7

Rapid Programming Algorithm

A 100 µs PGM pulse width is used to program. The
address is set to the first location. V

is raised to 13.0V. Eac h address i s first program med

V

PP

with one 100 µs PGM
verification / reprogramming loop is executed for each
address. In the event a word fails to pass verification, up to
10 successive 100 µs pulses ar e appl ied wi th a v erifica tion

pulse without verification. Then a

is raised to 6.5V and

CC

after each pulse. If the word fa ils to verify after 10 pu lses
have been applied, the part is consi dered failed. After the
word verifies prope rly, th e next add ress is s elect ed u ntil al l
have been checked. V

5.0V. All words are read again and compared with the orig­inal data to determine if the device passes or fails.

is then lowered to 5.0V and VCC to

PP

8

AT27C1024

Ordering Information

I

(mA)

t

ACC

(ns)

45 30 0.1 AT27C1024-45JC

55 30 0.1 AT27C1024-55JC

70 30 0.1 AT27C1024-70JC

CC

Ordering Code Package Operation RangeActive Standby

AT27C1024-45PC
AT27C1024-45VC

30 0.1 AT27C1024-45JI

AT27C1024-45PI
AT27C1024-45VI

AT27C1024-55PC
AT27C1024-55VC

30 0.1 AT27C1024-55JI

AT27C1024-55PI
AT27C1024-55VI

AT27C1024-70PC
AT27C1024-70VC

30 0.1 AT27C1024-70JI

AT27C1024-70PI
AT27C1024-70VI

44J
40P6
40V

44J
40P6
40V

44J
40P6
40V

44J
40P6
40V

44J
40P6
40V

44J
40P6
40V

AT27C1024

Commercial

(0°C to 70°C)

Industrial

(-40°C to 85°C)

Commercial

(0°C to 70°C)

Industrial

(-40°C to 85°C)

Commercial

(0°C to 70°C)

Industrial

(-40°C to 85°C)

Package Type

44J 44-Lead, Plastic J-Leaded Chip Carrier (PLCC)
40P6 40-Lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)

(continued)

40V 40-Lead, Plastic Thin Small Outline Package (VSOP) 10 x 14 mm

9

Ordering Information (Continued)

I

(mA)

t

ACC

(ns)

90 30 0.1 AT27C1024-90JC

120 30 0.1 AT27C1024-12JC

150 30 0.1 AT27C1024-15JC

CC

Ordering Code Package Operation RangeActive Standby

AT27C1024-90PC
AT27C1024-90VC

30 0.1 AT27C1024-90JI

AT27C1024-90PI
AT27C1024-90VI

30 0.1 AT27C1024-90JA

AT27C1024-90PA

AT27C1024-12PC
AT27C1024-12VC

30 0.1 AT27C1024-12JI

AT27C1024-12PI
AT27C1024-12VI

30 0.1 AT27C1024-12JA

AT27C1024-12PA

AT27C1024-15PC
AT27C1024-15VC

30 0.1 AT27C1024-15JI

AT27C1024-15PI
AT27C1024-15VI

30 0.1 AT27C1024-15JA

AT27C1024-15PA

44J
40P6
40V

44J
40P6
40V

44J
40P6

44J
40P6
40V

44J
40P6
40V

44J
40P6

44J
40P6
40V

44J
40P6
40V

44J
40P6

Commercial

(0°C to 70°C)

Industrial

(-40°C to 85°C)

Automotive

(-40°C to 125°C)

Commercial

(0°C to 70°C)

Industrial

(-40°C to 85°C)

Automotive

(-40°C to 125°C)

Commercial

(0°C to 70°C)

Industrial

(-40°C to 85°C)

Automotive

(-40°C to 125°C)

Package Type

44J 44-Lead, Plastic J-Leaded Chip Carrier (PLCC)
40P6 40-Lead, 0.600" Wide, Plastic Dual Inline Package (PDIP)
40V 40-Lead, Plastic Thin Small Outline Package (VSOP) 10 x 14 mm

10

AT27C1024

Packaging Information

AT27C1024

44J

, 44-Lead, Plastic J-Leaded Chip Carrier (PLCC)

Dimensions in Inches and (Millimeters)

JEDEC STANDARD MS-018 AC

.045(1.14) X 30° - 45°

.656(16.7)

SQ

.650(16.5)

.695(17.7)
.685(17.4)

.500(12.7) REF SQ

.022(.559) X 45° MAX (3X)

.021(.533)

SQ

.013(.330)

.043(1.09)
.020(.508)

.120(3.05)

.090(2.29)
.180(4.57)
.165(4.19)

.032(.813)
.026(.660)

.050(1.27) TYP

.045(1.14) X 45°

PIN NO.1
IDENTIFY

.012(.305)
.008(.203)

.630(16.0)
.590(15.0)

40P6

, 40-Lead, 0.600" Wide, Plastic Dual Inline
Package (PDIP)
Dimensions in Inches and (Millimeters)

JEDEC STANDARD MS-011 AC

2.07(52.6)

.220(5.59)

SEATING

PLANE

MAX

.161(4.09)
.125(3.18)

.110(2.79)
.090(2.29)

.012(.305)
.008(.203)

2.04(51.8)

1.900(48.26) REF

.065(1.65)
.041(1.04)

.630(16.0)
.590(15.0)

.690(17.5)
.610(15.5)

PIN

1

0

REF

15

.566(14.4)
.530(13.5)

.090(2.29)

.005(.127)

.065(1.65)
.015(.381)

.022(.559)
.014(.356)

MAX

MIN

40V

, 40-Lead, Plastic Thin Small Outline Package
(TSOP)
Dimensions in Millimeters and (Inches)

JEDEC OUTLINE MO-142 CA

11

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1-[phone]

© Atmel Corporation 1998.

Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard war­ranty which is detailed in Atmel’s Ter ms and Conditions located on the Company’s website. The Company assumes no responsibility for
any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without
notice, and does not make any commitment to update the information contained herein. No licenses to patents or other intellectual prop­erty of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are
not authorized for use as critical components in life support devices or systems.

®

Marks bearing
Terms and product names in this document may be trademarks of others.

and/or ™ are registered trademarks and trademarks of Atmel Corporation.

Printed on recycled paper.

0019J–07/98/xM