AT27LV520-70SC

AT27LV520-70SC Datasheet

Low-voltage Power Supply Range, 3.0V to 3.6V, or Standard 5V ± 10% Supply Range<br>• Pin Compatible with Standard AT27C520<br>• Low-power CMOS Operation 20 µA max. Standby for ALE = VIH and VCC = 3.6V 29 mW max. Active at 5 MHz for VCC = 3.6V<br>• JEDEC Standard Packages 20-lead TSSOP

Part	Datasheet
AT27LV520-70SC	AT27LV520-70SC (pdf)

Related Parts	Information
AT27LV520-70XC	AT27LV520-70XC
AT27LV520-90SC	AT27LV520-90SC
AT27LV520-90XC	AT27LV520-90XC

PDF Datasheet Preview
• 8-bit Multiplexed Addresses/Outputs • Fast Read Access Time 70 ns • Dual Voltage Range Operation Low-voltage Power Supply Range, 3.0V to 3.6V, or Standard 5V ± 10% Supply Range • Pin Compatible with Standard AT27C520 • Low-power CMOS Operation 20 µA max. Standby for ALE = VIH and VCC = 3.6V 29 mW max. Active at 5 MHz for VCC = 3.6V • JEDEC Standard Packages 20-lead TSSOP 20-lead SOIC • High-reliability CMOS Technology 2,000V ESD Protection 200 mA Latch-up Immunity • Rapid Programming Algorithm 50 µs/Byte Typical • CMOS- and TTL-compatible Inputs and Outputs JEDEC Standard for LVTTL • Integrated Product Identification Code • Commercial and Industrial Temperature Range The AT27LV520 is a low-power, high-performance, 524,288-bit one-time programmable read-only memory OTP EPROM organized 64K by eight bits. It incorporates latches for the eight lower order address bits to multiplex with the eight data bits. This minimizes system chip count, reduces cost, and simplifies the design of multiplexed bus systems. It requires only one power supply in the range of 3.0V to 3.6V for normal read mode operation, making it ideal for fast, portable systems using battery power. Any byte can be accessed in less than 70 ns. The AT27LV520 is available in 173 mil, 20-lead TSSOP and 300 mil, 20-lead SOIC, one-time programmable OTP plastic packages. continued Pin Configurations Pin Name A8 - A15 AD0 - AD7 OE /VPP ALE Function Addresses/Outputs Output Enable/Program Supply Address Latch Enable 512K 64K x 8 Multiplexed Addresses/ Outputs Low-voltage OTP EPROM AT27LV520 TSSOP Top View A10 1 A12 2 A14 3 ALE 4 VCC 5 OE/VPP 6 A15 7 A13 8 A11 9 A9 10 20 A8 19 AD1 18 AD3 17 AD5 16 AD7 15 GND 14 AD6 13 AD4 12 AD2 11 AD0 SOIC Top View OE/VPP 1 A15 2 A13 3 A11 4 A9 5 AD0 6 AD2 7 AD4 8 AD6 9 GND 10 20 VCC 19 ALE 18 A14 17 A12 16 A10 15 A8 14 AD1 13 AD3 12 AD5 11 AD7 Atmel’s innovative design techniques provide fast speeds that rival 5V parts while keeping the low power consumption of a 3.3V supply. At VCC = 3.0V, any byte can be accessed in less than 70 ns. With a typical power dissipation of only 18 mW at 5 MHz and VCC = 3.3V, the AT27LV520 consumes less than one fifth the power of a standard 5V EPROM. Standby mode is achieved by asserting ALE high. Standby mode supply current is typically less than 1 µA at 3.3V. The AT27LV520 operating with VCC at 3.0V produces TTL level outputs that are compatible with standard TTL logic devices operating at VCC = 5.0V. The device is also capable 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 AT27LV520 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. Programing time is typically only 50 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 AT27LV520 programs exactly the same way as a standard 5V AT27C520 and uses the same programming equipment. System Considerations Switching under active conditions 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 µF high frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the VCC and Ground terminals of the device, as close to the device as possible. Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a µF bulk electrolytic capacitor should be utilized, again connected between the VCC and Ground terminals. This capacitor should be positioned as close as possible to the point where the power supply is connected to the array. Block Diagram VCC GND OE/VPP ALE OE, ALE, AND PROGRAM LOGIC OUTPUT BUFFERS LATCHES AD7 - AD0 A15 - A8 Y DECODER Y-GATING X DECODER 8 CELL MATRIX IDENTIFICATION AT27LV520 Ordering Information tACC ns 90 ICC mA Active Ordering Code AT27LV520-90SC AT27LV520-90XC AT27LV520-90SI AT27LV520-90XI AT27LV520-70SC AT27LV520-70XC AT27LV520-70SI AT27LV520-70XI Package 20S 20X 20S 20X 20S 20X 20S 20X Operation Range Commercial 0°C to 70°C Industrial -40°C to +85°C Commercial 0°C to 70°C Industrial -40°C to +85°C 20S 20X Package Type 20-lead, Wide, Plastic Gull Wing Small Outline SOIC 20-lead, Wide, Thin Shrink Small Outline TSSOP AT27LV520 Packaging Information 20S, 20-lead, Wide, Plastic Gull Wing Small Outline Dimensions in Inches and Millimeters PIN 1 0 REF AT27LV520 20X, 20-lead, Wide, Thin Super Small Outline Package TSSOP Dimensions in Millimeters and Inches PIN 1 ID Atmel Headquarters Corporate Headquarters 2325 Orchard Parkway San Jose, CA 95131 TEL 408 441-0311 FAX 408 487-2600 Europe Atmel U.K., Ltd. Coliseum Business Centre Riverside Way Camberley, Surrey GU15 3YL England TEL 44 1276-686-677 FAX 44 1276-686-697 Asia Atmel Asia, Ltd. Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimhatsui East Kowloon Hong Kong TEL 852 2721-9778 FAX 852 2722-1369 Japan Atmel Japan K.K. 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan TEL 81 3-3523-3551 FAX 81 3-3523-7581 Atmel Operations Atmel Colorado Springs 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 719 576-3300 FAX 719 540-1759 Atmel Rousset Zone Industrielle 13106 Rousset Cedex France TEL 33 4-4253-6000 FAX 33 4-4253-6001 Fax-on-Demand North America 1- 800 292-8635 International 1- 408 441-0732 e-mail Web Site BBS 1- 408 436-4309 Atmel Corporation 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 web site. 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 and/or are registered trademarks and trademarks of Atmel Corporation. Terms and product names in this document may be trademarks of others. Printed on recycled paper.

PDF Datasheet Preview

• 8-bit Multiplexed Addresses/Outputs
• Fast Read Access Time 70 ns
• Dual Voltage Range Operation

Low-voltage Power Supply Range, 3.0V to 3.6V, or Standard 5V ± 10% Supply Range
• Pin Compatible with Standard AT27C520
• Low-power CMOS Operation 20 µA max. Standby for ALE = VIH and VCC = 3.6V 29 mW max. Active at 5 MHz for VCC = 3.6V
• JEDEC Standard Packages 20-lead TSSOP
20-lead SOIC
• High-reliability CMOS Technology
2,000V ESD Protection
200 mA Latch-up Immunity
• Rapid Programming Algorithm 50 µs/Byte Typical
• CMOS- and TTL-compatible Inputs and Outputs

JEDEC Standard for LVTTL
• Integrated Product Identification Code
• Commercial and Industrial Temperature Range

The AT27LV520 is a low-power, high-performance, 524,288-bit one-time programmable read-only memory OTP EPROM organized 64K by eight bits. It incorporates latches for the eight lower order address bits to multiplex with the eight data bits. This minimizes system chip count, reduces cost, and simplifies the design of multiplexed bus systems. It requires only one power supply in the range of 3.0V to 3.6V for normal read mode operation, making it ideal for fast, portable systems using battery power. Any byte can be accessed in less than 70 ns.

The AT27LV520 is available in 173 mil, 20-lead TSSOP and 300 mil, 20-lead SOIC,
one-time programmable OTP plastic packages.
continued

Pin Configurations

Pin Name A8 - A15 AD0 - AD7 OE /VPP ALE

Function Addresses/Outputs Output Enable/Program Supply Address Latch Enable
512K 64K x 8 Multiplexed Addresses/ Outputs Low-voltage OTP EPROM

AT27LV520

TSSOP Top View

A10 1 A12 2 A14 3 ALE 4 VCC 5 OE/VPP 6 A15 7 A13 8 A11 9

A9 10
20 A8 19 AD1 18 AD3 17 AD5 16 AD7 15 GND 14 AD6 13 AD4 12 AD2 11 AD0

SOIC Top View

OE/VPP 1 A15 2 A13 3 A11 4 A9 5 AD0 6 AD2 7 AD4 8 AD6 9 GND 10
20 VCC 19 ALE 18 A14 17 A12 16 A10 15 A8 14 AD1 13 AD3 12 AD5 11 AD7

Atmel’s innovative design techniques provide fast speeds that rival 5V parts while keeping the low power consumption of a 3.3V supply. At VCC = 3.0V, any byte can be accessed in less than 70 ns. With a typical power dissipation of only 18 mW at 5 MHz and VCC = 3.3V, the AT27LV520 consumes less than one fifth the power of a standard 5V EPROM. Standby mode is achieved by asserting ALE high. Standby mode supply current is typically less than 1 µA at 3.3V.

The AT27LV520 operating with VCC at 3.0V produces TTL level outputs that are compatible with standard TTL logic devices operating at VCC = 5.0V. The device is also capable 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 AT27LV520 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. Programing time is typically only 50 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 AT27LV520 programs exactly the same way as a standard 5V AT27C520 and uses the same programming equipment.

System Considerations

Switching under active conditions 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 µF high frequency, low inherent inductance, ceramic capacitor should be utilized for each device. This capacitor should be connected between the VCC and Ground terminals of the device, as close to the device as possible. Additionally, to stabilize the supply voltage level on printed circuit boards with large EPROM arrays, a µF bulk electrolytic capacitor should be utilized, again connected between the VCC and Ground terminals. This capacitor should be positioned as close as possible to the point where the power supply is connected to the array.

Block Diagram

VCC GND

OE/VPP ALE

OE, ALE, AND PROGRAM LOGIC

OUTPUT BUFFERS

LATCHES

AD7 - AD0 A15 - A8

Y DECODER

Y-GATING

X DECODER 8

CELL MATRIX

IDENTIFICATION

AT27LV520
Ordering Information
tACC ns 90

ICC mA Active
Ordering Code AT27LV520-90SC AT27LV520-90XC AT27LV520-90SI AT27LV520-90XI AT27LV520-70SC AT27LV520-70XC AT27LV520-70SI AT27LV520-70XI

Package 20S 20X 20S 20X 20S 20X 20S 20X

Operation Range Commercial 0°C to 70°C Industrial
-40°C to +85°C Commercial 0°C to 70°C Industrial
-40°C to +85°C
20S 20X

Package Type 20-lead, Wide, Plastic Gull Wing Small Outline SOIC 20-lead, Wide, Thin Shrink Small Outline TSSOP

AT27LV520

Packaging Information
20S, 20-lead, Wide, Plastic Gull Wing Small Outline Dimensions in Inches and Millimeters

PIN 1
0 REF

AT27LV520
20X, 20-lead, Wide, Thin Super Small Outline Package TSSOP Dimensions in Millimeters and Inches

PIN 1 ID

Atmel Headquarters

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

Europe Atmel U.K., Ltd. Coliseum Business Centre Riverside Way Camberley, Surrey GU15 3YL England TEL 44 1276-686-677 FAX 44 1276-686-697

Asia Atmel Asia, Ltd. Room 1219 Chinachem Golden Plaza 77 Mody Road Tsimhatsui East Kowloon Hong Kong TEL 852 2721-9778 FAX 852 2722-1369

Japan Atmel Japan K.K. 9F, Tonetsu Shinkawa Bldg. 1-24-8 Shinkawa Chuo-ku, Tokyo 104-0033 Japan TEL 81 3-3523-3551 FAX 81 3-3523-7581

Atmel Operations

Atmel Colorado Springs 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL 719 576-3300 FAX 719 540-1759

Atmel Rousset Zone Industrielle 13106 Rousset Cedex France TEL 33 4-4253-6000 FAX 33 4-4253-6001

Fax-on-Demand North America 1- 800 292-8635 International 1- 408 441-0732
e-mail

Web Site

BBS 1- 408 436-4309

Atmel Corporation 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 web site. 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 and/or are registered trademarks and trademarks of Atmel Corporation. Terms and product names in this document may be trademarks of others.

Printed on recycled paper.

Notice: we do not provide any warranties that information, datasheets, application notes, circuit diagrams, or software stored on this website are up-to-date or error free. The archived AT27LV520-70SC Datasheet file may be downloaded here without warranties.

Datasheet ID: AT27LV520-70SC 518959