Owner's manual

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PLCC, Top View

A14

A13

A11

A10

GND

A12

A15

A16

VPP

VCC

PGM

A17

Features

• Fast Read Access Time – 90 ns

• Dual Voltage Range Operation

– Unregulated Battery Power Supply Range, 2.7V 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

= 3.6V

– 29 mW max. Active at 5 MHz for V

= 3.6V

• Wide Selection of 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 Latch-up Immunity

• Rapid

™

Programming Algorithm – 100 µs/Byte (Typical)

• CMOS and TTL Compatible Inputs and Outputs

– JEDEC Standard for LVTTL and LVBO

• Integrated Product Identification Code

• Commercial and Industrial Temperature Ranges

Description

The AT27BV020 is a high-performance, low-power, low-voltage, 2,097,152-bit, one-

time programmable, read-only memory (OTP EPROM) organized as 256K by 8 bits. It

requires only one supply in the range of 2.7 to 3.6V in normal read mode operation,

making it ideal for fast, portable systems using either regulated or unregulated battery

power.

2-megabit

(256K x 8)

Unregulated

Battery-Voltage

™

High-speed

OTP EPROM

AT27BV020

TSOP, VSOP Top View

Type 1

A11

A13

A14

A17

PGM

VCC

VPP

A16

A15

A12

A10

GND

Rev. 0902D–04/01

Pin Configurations

Pin Name Function

A0 - A17 Addresses

O0 - O7 Outputs

Chip Enable

Output Enable

PGM

Program Strobe

NC No Connect

(continued)

Summary of content (12 pages)

PAGE 1
Features • Fast Read Access Time – 90 ns • Dual Voltage Range Operation • • • • • • • • – Unregulated Battery Power Supply Range, 2.7V 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 VCC = 3.6V – 29 mW max. Active at 5 MHz for VCC = 3.
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 C C = 2.7V, any byte can be accessed in less than 90 ns. With a typical power dissipation of only 18 mW at 5 MHz and VCC = 3V, the AT27BV020 consumes less than one fifth the power of a standard 5V EPROM. Standby mode supply current is typically less than 1 µA at 3V.
PAGE 3
AT27BV020 Absolute Maximum Ratings* Temperature under Bias .................................. -40°C to +85°C *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 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.
PAGE 4
DC and AC Operating Conditions for Read Operation Com. Operating Temperature (Case) Ind. VCC Power Supply AT27BV020-90 AT27BV020-12 AT27BV020-15 0°C - 70°C 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C -40°C - 85°C 2.7V to 3.6V 2.7V to 3.6V 2.7V to 3.6V 5V ± 10% 5V ± 10% 5V ± 10% DC and Operating Characteristics for Read Operation Symbol Parameter Condition Min Max Units VCC = 2.7V to 3.
PAGE 5
AT27BV020 AC Characteristics for Read Operation VCC = 2.7V to 3.6V and 4.5V to 5.5V AT27BV020 -90 Symbol tACC (3) tCE(2) tOE (2)(3) Note: Parameter Condition Address to Output Delay CE = OE = VIL 90 CE to Output Delay OE = VIL OE to Output Delay CE = VIL OE or CE High to Output Float, whichever occurred first tDF(4)(5) tOH Min -12 Output Hold from Address, CE or OE, whichever occurred first 2,3,4,5. – See “AC Waveforms for Read Operation”.
PAGE 6
Input Test Waveform and Measurement Level Output Test Load tR, tF < 20 ns (10% to 90%) Note: CL = 100 pF including jig capacitance. l Pin Capacitance f = 1 MHz, T = 25°C(1) Symbol CIN COUT Note: 6 1. Typ Max Units Conditions 4 8 pF VIN = 0V 8 12 pF Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
PAGE 7
AT27BV020 Programming Waveforms(1) Notes: 1. The Input Timing Reference is 0.8V for VIL and 2.0V for VIH. 2. tOE and tDFP are characteristics of the device but must be accommodated by the programmer. 3. When programming the AT27BV020 a 0.1 µF capacitor is required across VPP and ground to suppress spurious voltage transients. DC Programming Characteristics TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.
PAGE 8
AC Programming Characteristics TA = 25 ± 5°C, VCC = 6.5 ± 0.25V, VPP = 13.0 ± 0.25V Limits (1) Min Test Conditions Max Units Symbol Parameter tAS Address Setup Time 2 µs tCES CE Setup Time 2 µs tOES OE Setup Time 2 µs tDS Data Setup Time 2 µs tAH Address Hold Time 0 µs tDH Data Hold Time 2 µs tDFP OE High to Output Float Delay(3) tVPS VPP Setup Time tVCS VCC Setup Time Input Rise and Fall Times: (10% to 90%) 20ns Input Pulse Levels: 0.45V to 2.
PAGE 9
AT27BV020 Rapid Programming Algorithm A 100 µs PGM pulse width is used to program. The address is set to the first location. VCC is raised to 6.5V and VPP is raised to 13.0V. Each address is first programmed with one 100 µs PGM pulse without verification. Then a 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 after each pulse.
PAGE 10
Ordering Information ICC (mA) VCC = 3.6V tACC (ns) Active Standby Ordering Code Package 90 8 0.02 AT27BV020-90JC AT27BV020-90TC AT27BV020-90VC 32J 32T 32V Commercial (0°C to 70°C) 8 0.02 AT27BV020-90JI AT27BV020-90TI AT27BV020-90VI 32J 32T 32V Industrial (-40°C to 85°C) 8 0.02 AT27BV020-12JC AT27BV020-12TC AT27BV020-12VC 32J 32T 32V Commercial (0°C to 70°C) 8 0.02 AT27BV020-12JI AT27BV020-12TI AT27BV020-12VI 32J 32T 32V Industrial (-40°C to 85°C) 8 0.
PAGE 11
AT27BV020 Packaging Information 32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-016 AE 32T, 32-lead, Plastic Thin Small Outline Package (TSOP) Dimensions in Millimeters and (Inches)* JEDEC OUTLINE MO-142 BD * .045(1.14) X 45˚ PIN NO. 1 IDENTIFY .025(.635) X 30˚ - 45˚ .012(.305) .008(.203) .553(14.0) .547(13.9) .595(15.1) .585(14.9) .032(.813) .026(.660) .050(1.27) TYP .300(7.62) REF .430(10.9) .390(9.90) AT CONTACT POINTS INDEX MARK .
PAGE 12
Atmel Headquarters Atmel Operations Corporate Headquarters Atmel Colorado Springs 2325 Orchard Parkway San Jose, CA 95131 TEL (408) 441-0311 FAX (408) 487-2600 Europe 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 TEL (719) 576-3300 FAX (719) 540-1759 Atmel Rousset Atmel SarL Route des Arsenaux 41 Casa Postale 80 CH-1705 Fribourg Switzerland TEL (41) 26-426-5555 FAX (41) 26-426-5500 Asia Atmel Asia, Ltd.