Instruction Manual

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Features

•

Fast Read Access Time - 120 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 AT27C040

•

Low Power CMOS Operation

– 20 µA max. (less than 1 µA typical) Standby for V

= 3.6V

– 36 mW max. Active at 5 MHz for V

= 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)

•

CMOS and TTL Compatible Inputs and Outputs

– JEDEC Standard for LVTTL and LVBO

•

Integrated Product Identification Code

•

Commercial and Industrial Temperature Ranges

Description

The AT27BV040 chip is a high performance, low power, low voltage, 4,194,304-bit

one-time programmable read only memory (EPROM) organized as 512K 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.

4-Megabit

(512K x 8)

Unregulated

Battery-Voltage

™

High-Speed OTP

EPROM

AT27BV040

Rev. 0346D–10/98

Pin Configurations

Pin Name Function

A0 - A18 Addresses

O0 - O7 Outputs

Chip Enable

Output Enable

TSOP, VSOP Top View

Type 1

A11

A13

A14

A17

A18

VCC

VPP

A16

A15

A12

A10

GND

PLCC Top View

A14

A13

A11

A10

GND

A12

A15

A16

VPP

VCC

A18

A17

(continued)

Summary of content (12 pages)

PAGE 1
Features • Fast Read Access Time - 120 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 AT27C040 Low Power CMOS Operation – 20 µA max. (less than 1 µA typical) Standby for VCC = 3.6V – 36 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 100 ns. With a typical power dissipation of only 18 mW at 5 MHz and VCC = 3V, the AT27BV040 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
AT27BV040 Absolute Maximum Ratings* *NOTICE: Temperature Under Bias .................................. -40°C to +85°C Storage Temperature ..................................... -65°C to +125°C Voltage on Any Pin with Respect to Ground .........................................-2.0V to +7.0V(1) Voltage on A9 with Respect to Ground ......................................-2.0V to +14.0V(1) Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device.
PAGE 4
DC and AC Operating Conditions for Read Operation AT27BV040-12 AT27BV040-15 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C 2.7V to 3.6V 2.7V to 3.6V 5V ± 10% 5V ± 10% Com. Operating Temperature (Case) Ind. VCC Power Supply DC and Operating Characteristics for Read Operation Symbol Parameter Condition Min Max Units VCC = 2.7V to 3.6V ILI Input Load Current VIN = 0V to VCC ±1 µA ILO Output Leakage Current VOUT = 0V to VCC ±5 µA VPP = VCC 10 µA ISB1 (CMOS), CE = VCC ± 0.
PAGE 5
AT27BV040 AC Characteristics for Read Operation VCC = 2.7V to 3.6V and 4.5V to 5.
PAGE 6
Input Test Waveforms and Measurement Levels Output Test Load tR, tF < 20 ns (10% to 90%) Note: CL = 100 pF including jig capacitance. Pin Capacitance f = 1 MHz, T = 25°C(1) Symbol Typ Max Units Conditions CIN 4 8 pF VIN = 0V COUT 8 12 pF VOUT = 0V Note: 6 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
PAGE 7
AT27BV040 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 AT27BV040 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 Symbol Parameter tAS Address Setup Time tOES OE Setup Time tDS Data Setup Time tAH Address Hold Time (1) Test Conditions Input Rise and Fall Times: (10% to 90%) 20 ns Input Pulse Levels: tDH Data Hold Time tDFP OE High to Output Float Delay(2) tVPS VPP Setup Time tVCS VCC Setup Time 0.45V to 2.
PAGE 9
AT27BV040 Rapid Programming Algorithm A 100 µs CE 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 CE 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 120 8 150 Ordering Code Package 0.02 AT27BV040-12JC AT27BV040-12TC AT27BV040-12VC 32J 32T 32V Commercial (0°C to 70°C) 8 0.02 AT27BV040-12JI AT27BV040-12TI AT27BV040-12VI 32J 32T 32V Industrial (-40°C to 85°C) 8 0.02 AT27BV040-15JC AT27BV040-15TC AT27BV040-15VC 32J 32T 32V Commercial (0°C to 70°C) 8 0.
PAGE 11
AT27BV040 Packaging Information 32J, 32-Lead, Plastic J-Leaded Chip Carrier (PLCC) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-016 AE .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 32T, 32-Lead, Plastic Thin Small Outline Package (TSOP) Dimensions in Millimeters and (Inches)* INDEX MARK .530(13.5) .490(12.4) 18.5(.
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 U.K., Ltd.