Rainbow Electronics AT27LV020A User Manual

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Page 1

Features

• Fast Read Access Time - 90 ns

• Dual Voltage Range Operation

– Low Voltage Power Supply Range, 3.0V to 3.6V – or Standard 5V ± 10% Supply Range

• Compatible with JEDEC Standard AT27C020

• Low Power CMOS Operation

– 20 µA max. (less than 1 µA typical) Standby for V – 29 mW max. Active at 5 MHz for VCC = 3.6V

= 3.6V

• JEDEC Standard Packages

– 32-lead PLCC – 32-lead TSOP (8 x 20 mm) – 32-lead VSOP (8 x 14 mm)

• High Reliability CMOS Technology

– 2,000V ESD Protection – 200 mA Latchup Immunity

• Rapid™ Programming Algorithm - 100 µs/byte (typical)

• Two-line Control

• CMOS and TTL Compatible Inputs and Outputs

– JEDEC Standard for LVTTL

• Integrated Product Identification Code

• Commercial and Industrial Temperature Ranges

Description

The AT27LV020A is a high performance, low power, low voltage 2,097,152 bit onetime programmable read only memory (OTP EPROM) organized as 256K by 8 bits. It requires only one supply in the range of 3.0 to 3.6V in normal read mode operation, making it ideal for fast, portable systems using battery power.

2-Megabit (256K x 8) Low Voltage OTP EPROM

AT27LV020A

Pin Configurations

Pin Name Function

A0 - A17 Addresses

O0 - O7 Outputs

PGM

NC No Connect

PLCC, Top View

Chip Enable

Output Enable

Program Strobe

A12

A15

A16

VPP

VCC

PGM

432

323130

14151617181920

O3O4O5

GND

A17

29 28 27 26 25 24 23 22 21

A14 A13 A8 A9 A11 OE A10 CE O7

A11

A13 A14 A17

PGM

VCC VPP

A16 A15 A12

(continued)

TSOP/VSOP Top View

Typ e 1

1 2

4 5 6 7 8 9 10 11 12 13

A10

GND

Rev. 0549E–04/01

Page 2

Atmel’s innovative design techniques provide fast speeds that rival 5V parts while keeping the low power consumption of a 3V supply. At V

= 3.0V, any byte can be

accessed in less than 90 ns. With a typical power dissipation of only 18 mW at 5 MHz and V

= 3.3V, the

AT27LV020A consumes less than one fifth the power of a standard 5V EPROM. Standby mode supply current is typically less than 1 µA at 3.3V.

The AT27LV020A is available in industry standard JEDEC approved one-time programmable (OTP) plastic PLCC, TSOP, and VSOP. All devices feature two-line control (CE

) to give designers the flexibility to prevent bus

OE contention.

The AT27LV020A operating with V

at 3.0V produces TTL

level outputs that are compatible with standard TTL logic devices operating at V

= 5.0V. The device is also capa-

ble of standard 5-volt operation making it ideally suited for dual supply range systems or card products that are pluggable in both 3-volt and 5-volt hosts.

Atmel's AT27LV020A has additional features to ensure high quality and efficient production use. The Rapid

™

Programming Algorithm reduces the time required to program the part and guarantees reliable programming. Programming time is typically only 100 µs/byte. The Integrated

Product Identification Code electronically identifies the device and manufacturer. This feature is used by industry standard programming equipment to select the proper programming algorithms and voltages. The AT27LV020A programs exactly the same way as a standard 5V AT27C020 and uses the same programming equipment.

System Considerations

Switching between active and standby conditions via the Chip Enable pin may produce transient voltage excursions.

Unless accommodated by the system design, these transients may exceed data sheet limits, resulting in device non-conformance. At a minimum, a 0.1 µF high frequency, 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

and Ground

Block Diagram

AT27LV020A

Page 3

Absolute Maximum Ratings*

Temperature Under Bias.................................. -40°C to +85°C

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

Voltage on any Pin with

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

Voltage on A9 with

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

AT27LV020A

*NOTICE: Stresses beyond 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

(1)

other conditions 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

VCC + 0.75V DC which may be exceeded if certain precautions are observed (consult application notes) and which may overshoot to +7.0V for pulses of less than 20 ns.

Operating Modes

Mode/Pin CE OE PGM Ai V

(2)

Read

Output Disable

Standby

Rapid Program

PGM Verify

PGM Inhibit

(2)

(3)

Product Identification

(3)(5)

XVIHXX XV

XX X XV

XX X VPPV

(1)

Ai X V

Ai V

A9 = V A0 = VIH or V A1 - A17 = V

(4)

Notes: 1. X can be VIL or VIH.

2. Read, output disable, and standby modes require, 3.0V ≤ V

3. Refer to Programming Characteristics. Programming modes require V

≤=3.6V, or 4.5V ≤ VCC ≤ 5.5V.

= 6.5V.

4. VH = 12.0 ± 0.5V.

5. Two identifier bytes may be selected. All Ai inputs are held low (V low (V

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

), except A9 which is set to VH and A0 which is toggled

Outputs

(2)

OUT

(2)

High Z

(2)

High Z

(3)

OUT

(3)

High Z

(3)

Identification Code

Page 4

DC and AC Operating Conditions for Read Operation

AT27LV020A-90 AT27LV020A-12 AT27LV020A-15

Operating Temperature (Case)

Com. 0°C - 70°C0°C - 70°C0°C - 70°C

Ind. -40°C - 85°C-40°C - 85°C-40°C - 85°C

Power Supply

5V ± 10% 5V ± 10% 5V ± 10%

DC and Operating Characteristics for Read Operation

Symbol Parameter Condition Min Max Units

= 3.0V to 3.6V

3.0V to 3.6V 3.0V to 3.6V 3.0V to 3.6V

(2)

PP1

= 4.5V to 5.5V

(2)

PP1

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

Input Load Current VIN = 0V to V

Output Leakage Current V

Read/Standby Current

VCC Standby Current

(1)

= 0V to V

OUT

VPP = V

(CMOS), CE = V

SB1

(TTL), CE = 2.0 to VCC + 0.5V 100 µA

SB2

VCC Active Current f = 5 MHz, I

CC=

= 0 mA, CE = V

OUT

± 0.3V 20 µA

±1µA

±5µA

10 µA

8mA

Input Low Voltage -0.6 0.8 V

Input High Voltage 2.0 VCC + 0.5 V

Output Low Voltage IOL = 2.0 mA 0.4 V

Output High Voltage IOH = -2.0=mA 2.4 V

Input Load Current VIN = 0V to V

Output Leakage Current V

Read/Standby Current

VCC Standby Current

(1)

= 0V to V

OUT

VPP = V

(CMOS), CE = VCC ± 0.3V 100 µA

SB1

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

SB2

VCC Active Current f = 5 MHz, I

= 0 mA, CE = V

OUT

±1µA

±5µA

10 µA

25 mA

Input Low Voltage -0.6 0.8 V

Input High Voltage 2.0 VCC + 0.5 V

Output Low Voltage IOL = 2.1 mA 0.4 V

Output High Voltage IOH = -400 µA 2.4 V

may be connected directly to VCC, except during programming. The supply current would then be the sun of ICC and IPP.

2. V

AT27LV020A

Page 5

AC Characteristics for Read Operation

VCC = 3.0V to 3.6V and 4.5V to 5.5V

AT27LV020A

-90 -12 -15

Symbol Parameter Condition

(3)

ACC

(2)

(2)(3)

(4)(5)

Address to Output Delay CE = OE = V

CE to Output Delay OE = V

OE to Output Delay CE = V

OE or CE High to Output Float, whichever occurred first

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

AC Waveforms for Read Operation

Min Max Min Max Min Max

90 120 150 ns

50 50 60 ns

Units

40 40 50 ns

000ns

Notes: 1. Timing measurement references are 0.8V and 2.0V. Input AC drive levels are 0.45V and 2.4V, unless otherwise specified.

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

3. OE

may be delayed up to t

- tOE after the address is valid without impact on t

ACC

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.

Page 6

Input Test Waveform and

Output Test Load

Measurement Level

tR, tF < 20 ns (1% to 90%)

Note: CL = 1 pF including jig capacitance.

Pin Capacitance

f = 1 MHz, T = 25°C

Symbol Typ Max Units Conditions

(1)

OUT

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

48pFV

812pFV

OUT

= 0V

AT27LV020A

Page 7

AT27LV020A

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 AT27LV020A a 0.1 µF capacitor is required across V transients.

DC Programming Characteristics

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

Symbol Parameter Test Conditions

CC2

PP2

Input Load Current V

= VIL, V

Input Low Level -0.6 0.8 V

Input High Level 2.0 VCC + 0.5 V

Output Low Voltage IOL = 2.1 mA 0.4 V

Output High Voltage IOH = -400=µA 2.4 V

VCC Supply Current (Program and Verify) 40 mA

VPP Supply Current CE = PGM = V

A9 Product Identification Voltage 11.5 12.5 V

and ground to suppress spurious voltage

Limits

UnitsMin Max

±10 µA

20 mA

Page 8

AC Programming Characteristics

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

Symbol Parameter Test Conditions

Limits

(1)

UnitsMin Max

CES

OES

DFP

VPS

VCS

PRT

Address Setup Time

CE Setup Time 2 µs

OE Setup Time 2 µs

Data Setup Time 2 µs

Address Hold Time 0 µs

Data Hold Time 2 µs

OE High to Output Float Delay

(3)

VPP Setup Time 2 µs

Input Rise and Fall Times

(10% to 90%) 20 ns

Input Pulse Levels

0.45V to 2.4V

Input Timing Reference Level

0.8V to 2.0V

VCC Setup Time 2 µs

PGM Program Pulse Width

(2)

Data Valid from OE 150 ns

Output Timing Reference Level

0.8V to 2.0V

VPP Pulse Rise Time During Programming

2µs

0 130 ns

95 105 µs

50 ns

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

2. This parameter is only sampled and is not 100% tested. Output Float is defined as the point where data is no longer driven —see timing diagram.

3. Program Pulse width tolerance is 100 µsec=±=5%.

Atmel’s 27LV020A Integrated Product Identification Code

(1)

Pins

Codes

Hex

DataA0 O7 O6 O5 O4 O3 O2 O1 O0

Manufacturer 0 00011110 1E

Device Type 1 10000110 86

Note: 1. The AT27LV020A has the same Product Identification Code as the AT27C020. Both are programming compatible.

AT27LV020A

Page 9

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. Each address is first programmed

with one 100 µs PGM verification/reprogramming loop is executed for each address. In the event a byte fails to pass verification, up to 10 successive 100 µs pulses are applied with a verification

pulse without verification. Then a

is raised to 6.5V and

AT27LV020A

after each pulse. If the byte fails to verify after 10 pulses have been applied, the part is considered failed. After the byte verifies properly, the next address is selected until all have been checked. V

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

is then lowered to 5.0V and V

Page 10

Ordering Information

ICC (mA)

= 3.6V

ACC

(ns)

90 8 0.02 AT27LV020A-90JC

120 8 0.02 AT27LV020A-12JC

150 8 0.02 AT27LV020A-15JC

Ordering Code Package Operation RangeActive Standby

AT27LV020A-90TC AT27LV020A-90VC

8 0.02 AT27LV020A-90JI

AT27LV020A-90TI AT27LV020A-90VI

AT27LV020A-12TC AT27LV020A-12VC

8 0.02 AT27LV020A-12JI

AT27LV020A-12TI AT27LV020A-12VI

AT27LV020A-15TC AT27LV020A-15VC

8 0.02 AT27LV020A-15JI

AT27LV020A-15TI AT27LV020A-15VI

32J 32T 32V

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

32J 32-Lead, Plastic J-Leaded Chip Carrier (PLCC)

32T 32-Lead, Plastic Thin Small Outline Package (TSOP) 8 x 20 mm

32V 32-Lead, Plastic Thin Small Outline Package (VSOP) 8 x 14 mm

AT27LV020A

Page 11

Packaging Information

AT27LV020A

32J, 32-Lead, Plastic J-Leaded Chip Carrier (PLCC)

Dimensions in Inches and (Millimeters)

JEDEC STANDARD MS-016 AE

.045(1.14) X 45˚

.032(.813)

.026(.660)

.050(1.27) TYP

PIN NO. 1 IDENTIFY

.553(14.0)

.547(13.9)

.300(7.62) REF

.430(10.9) .390(9.90)

AT CONTACT POINTS

.453(11.5) .447(11.4)

.495(12.6) .485(12.3)

.025(.635) X 30˚ - 45˚

.595(15.1) .585(14.9)

.021(.533) .013(.330)

.140(3.56) .120(3.05)

.022(.559) X 45˚ MAX (3X)

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

.030(.762) .015(.381) .095(2.41) .060(1.52)

.530(13.5) .490(12.4)

32T, 32-Lead, Plastic Thin Small Outline Package (TSOP) Dimensions in Millimeters and (Inches)*

JEDEC OUTLINE MO-142 BD

INDEX MARK

0.50(.020) BSC

REF

7.50(.295) REF

8.20(.323)

7.80(.307)

0.15(.006)

0.05(.002)

18.5(.728)

18.3(.720)

0.25(.010)

0.15(.006)

0.70(.028)

0.50(.020)

20.2(.795)

19.8(.780)

1.20(.047) MAX

0.20(.008)

0.10(.004)

*Controlling dimensions: millimeters

32V, 32-Lead, Plastic Thin Small Outline Package (VSOP) Dimensions in Inches and (Millimeters)

JEDEC OUTLINE MO-142 BA

INDEX MARK

0.50(.020) BSC

REF

7.50(.295) REF

8.10(.319)

7.90(.311)

0.15(.006)

0.05(.002)

12.5(.492)

12.3(.484)

0.25(.010)

0.15(.006)

0.70(.028)

0.50(.020)

14.2(.559)

13.8(.543)

1.20(.047) MAX

0.20(.008)

0.10(.004)

Page 12

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Corporate Headquarters

2325 Orchard Parkway San Jose, CA 95131 TEL (408) 441-0311 FAX (408) 487-2600

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Japan

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Atmel Smart Card ICs

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Fax-on-Demand

North America:

e-mail

literature@atmel.com

1-(800) 292-8635

International: 1-(408) 441-0732

Web Site

http://www.atmel.com

BBS

1-(408) 436-4309

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 Terms 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.

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

Printed on recycled paper.

0549E–04/01/xM