Manual

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2-Megabit

(256K x 8)

Single 2.7-volt

Battery-Voltage

™

Flash Memory

AT49BV002

AT49LV002

AT49BV002N

AT49LV002N

AT49BV002T

AT49LV002T

AT49BV002NT

AT49LV002NT

Features

•

Single Supply for Read and Write: 2.7 to 3.6V (BV), 3.0 to 3.6V (LV)

•

Fast Read Access Time - 70 ns

•

Internal Program Control and Timer

•

Sector Architecture

– One 16K Byte Boot Block with Programming Lockout

– Two 8K Byte Parameter Blocks

– Two Main Memory Blocks (96K, 128K Bytes)

•

Fast Erase Cycle Time - 10 seconds

•

Byte-By-Byte Programming - 30 µs/Byte Typical

•

Hardware Data Protection

•

DATA Polling For End Of Program Detection

•

Low Power Dissipation

– 25 mA Active Current

– 50 µA CMOS Standby Current

•

Typical 10,000 Write Cycles

Description

The AT49BV/LV002(N)(T) is a 3-volt-only in-system reprogrammable Flash Memory.

Its 2 megabits of memory is organized as 262,144 words by 8 bits. Manufactured with

Atmel’s advanced nonvolatile CMOS technology, the device offers access times to 70

ns with power dissipation of just 90 mW over the commercial temperature range.

When the device is deselected, the CMOS standby current is less than 50 µA. For the

Rev. 0982C–07/98

Pin Configurations

Pin Name Function

A0 - A17 Addresses

Chip Enable

Output Enable

WE Write Enable

RESET

I/O0 - I/O7 Data Inputs/Outputs

DC Don’t Connect

DIP Top View

*RESET

A16

A15

A12

I/O0

I/O1

I/O2

GND

VCC

A17

A14

A13

A11

A10

I/O7

I/O6

I/O5

I/O4

I/O3

PLCC Top View

I/O0

A14

A13

A11

A10

I/O7

I/O1

I/O2

GND

I/O3

I/O4

I/O5

I/O6

A12

A15

A16

RESET*

VCC

A17

(continued)

VSOP Top View (8 x 14 mm) or

TSOP Top View (8 x 20 mm)

Type 1

A11

A13

A14

A17

VCC

*RESET

A16

A15

A12

A10

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

*Note: This pin is a DC on the AT49BV002N(T) and AT49LV002N(T).

Summary of content (21 pages)

PAGE 1
Features • • • • • • • • • • Single Supply for Read and Write: 2.7 to 3.6V (BV), 3.0 to 3.
PAGE 2
AT49BV/LV002N(T) pin 1 for the DIP and PLCC packages and pin 9 for the TSOP package are don’t connect pins. To allow for simple in-system reprogrammability, the AT49BV/LV002(N)(T) does not require high input voltages for programming. Five-volt-only commands determine the read and programming operation of the device. Reading data out of the device is similar to reading from an EPROM; it has standard CE, OE, and WE inputs to avoid bus contention.
PAGE 3
AT49BV/LV002(N)(T) Device Operation READ: The AT49BV/LV002(N)(T) is accessed like an EPROM. When CE and OE are low and WE is high, the data stored at the memory location determined by the address pins is asserted on the outputs. The outputs are put in the high impedance state whenever CE or OE is high. This dual-line control gives designers flexibility in preventing bus contention.
PAGE 4
address range of the boot block is 3C000 to 3FFFF for the AT49BV/LV002(N)T. Once the feature is enabled, the data in the boot block can no longer be erased or programmed with input voltage of 5.5V or less. Data in the main memory block can still be changed through the regular programming method. To activate the lockout feature, a series of six program commands to specific addresses with specific data must be performed. Please refer to the Command Definitions table.
PAGE 5
AT49BV/LV002(N)(T) Command Definition (in Hex)(1) Command Sequence 1st Bus Cycle Bus Cycles Addr Data Read 1 Addr DOUT Chip Erase 6 5555 AA 2nd Bus Cycle 3rd Bus Cycle 4th Bus Cycle Data Addr Data Addr Data Addr Data Addr Data 2AAA 55 5555 80 5555 AA 2AAA 55 5555 10 2AAA 55 (4) SA 30 2AAA 55 5555 40 6 5555 AA 2AAA 55 5555 80 5555 AA Byte Program 4 5555 AA 2AAA 55 5555 A0 Addr DIN Boot Block Lockout(2) 6 5555 AA 2AAA 55 5555 80 5555 AA
PAGE 6
DC and AC Operating Range Operating Temperature (Case) Com. Ind. VCC Power Supply AT49LV002(N)(T)-70 AT49BV/LV002(N)(T)-90 AT49BV/LV002(N)(T)-12 0°C - 70°C 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C -40°C - 85°C 3.0V - 3.6V 2.7V - 3.6V/3.0V - 3.6V 2.7V - 3.6V/3.0V - 3.
PAGE 7
AT49BV/LV002(N)(T) AC Read Characteristics AT49LV002(N)(T)-70 Min Max AT49BV/LV002(N)(T)-90 Symbol Parameter Min Max tACC Address to Output Delay 70 tCE(1) CE to Output Delay 70 tOE(2) OE to Output Delay 0 35 0 40 tDF(3)(4) CE or OE to Output Float 0 25 0 25 tOH Output Hold from OE, CE or Address, whichever occurred first 0 AT49BV/LV002(N)(T)-12 Min Max Units 90 120 ns 90 120 ns 0 50 ns 0 30 ns 0 0 ns AC Read Waveforms (1)(2)(3)(4) ADDRESS ADDRESS VALID CE t
PAGE 8
AC Byte Load Characteristics Symbol Parameter Min tAS, tOES Address, OE Set-up Time 0 ns tAH Address Hold Time 70 ns tCS Chip Select Set-up Time 0 ns tCH Chip Select Hold Time 0 ns tWP Write Pulse Width (WE or CE) 90 ns tDS Data Set-up Time 70 ns tDH, tOEH Data, OE Hold Time 0 ns tWPH Write Pulse Width High 90 ns AC Byte Load Waveforms WE Controlled OE tOES tOEH ADDRESS CE WE tAS tAH tCH tCS tWPH tWP tDH tDS DATA IN CE Controlled OE tOES tOEH ADDRESS tAS tAH t
PAGE 9
AT49BV/LV002(N)(T) Program Cycle Characteristics Symbol Parameter Min Typ Max Units tBP Byte Programming Time 30 50 µs tAS Address Set-up Time 0 ns tAH Address Hold Time 70 ns tDS Data Set-up Time 70 ns tDH Data Hold Time 0 ns tWP Write Pulse Width 90 ns tWPH Write Pulse Width High 90 ns tEC Erase Cycle Time 10 seconds Program Cycle Waveforms A0 - A17 Sector or Chip Erase Cycle Waveforms OE (1) CE tWP tWPH WE tAS A0 - A17 tAH tDH 5555 5555 2AAA 5555 Note
PAGE 10
Data Polling Characteristics Symbol Parameter Min tDH Data Hold Time 10 ns tOEH OE Hold Time 10 ns Max (2) tOE OE to Output Delay tWR Write Recovery Time Notes: Typ Units ns 0 ns 1. These parameters are characterized and not 100% tested. 2. See tOE spec in AC Read Characteristics.
PAGE 11
AT49BV/LV002(N)(T) Software Product Identification Entry(1) Boot Block Lockout Feature Enable Algorithm(1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 80 TO ADDRESS 5555 LOAD DATA 90 TO ADDRESS 5555 LOAD DATA AA TO ADDRESS 5555 ENTER PRODUCT IDENTIFICATION MODE(2)(3)(5) LOAD DATA 55 TO ADDRESS 2AAA Software Product Identification Exit(1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA OR LOAD DATA F0 TO A
PAGE 12
AT49BV002 Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 90 50 0.1 AT49BV002-90JC AT49BV002-90PC AT49BV002-90TC AT49BV002-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49BV002-90JI AT49BV002-90PI AT49BV002-90TI AT49LV002-90VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49BV002-12JC AT49BV002-12PC AT49BV002-12TC AT49BV002-12VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 13
AT49BV/LV002(N)(T) AT49LV002 Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 70 50 0.1 AT49LV002-70JC AT49LV002-70PC AT49LV002-70TC AT49LV002-70VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49LV002-70JI AT49LV002-70PI AT49LV002-70TI AT49LV002-70VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49LV002-90JC AT49LV002-90PC AT49LV002-90TC AT49LV002-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 14
AT49BV002N Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 90 50 0.1 AT49BV002N-90JC AT49BV002N-90PC AT49BV002N-90TC AT49BV002N-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49BV002N-90JI AT49BV002N-90PI AT49BV002N-90TI AT49BV002N-90VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49BV002N-12JC AT49BV002N-12PC AT49BV002N-12TC AT49BV002N-12VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 15
AT49BV/LV002(N)(T) AT49LV002N Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 70 50 0.1 AT49LV002N-70JC AT49LV002N-70PC AT49LV002N-70TC AT49LV002N-70VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49LV002N-70JI AT49LV002N-70PI AT49LV002N-70TI AT49LV002N-70VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49LV002N-90JC AT49LV002N-90PC AT49LV002N-90TC AT49LV002N-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 16
AT49BV002T Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 90 50 0.1 AT49BV002T-90JC AT49BV002T-90PC AT49BV002T-90TC AT49BV002T-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49BV002T-90JI AT49BV002T-90PI AT49BV002T-90TI AT49BV002T-90VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49BV002T-12JC AT49BV002T-12PC AT49BV002T-12TC AT49BV002T-12VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 17
AT49BV/LV002(N)(T) AT49BV002T Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 70 50 0.1 AT49LV002T-70JC AT49LV002T-70PC AT49LV002T-70TC AT49LV002T-70VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49LV002T-70JI AT49LV002T-70PI AT49LV002T-70TI AT49LV002T-70VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49LV002T-90JC AT49LV002T-90PC AT49LV002T-90TC AT49LV002T-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 18
AT49BV002NT Ordering Information tACC (ns) 90 120 ICC (mA) Ordering Code Package 50 0.1 AT49BV002NT-90JC AT49BV002NT-90PC AT49BV002NT-90TC AT49BV002NT-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49BV002NT-90JI AT49BV002NT-90PI AT49BV002NT-90TI AT49BV002NT-90VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49BV002NT-12JC AT49BV002NT-12PC AT49BV002NT-12TC AT49BV002NT-12VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 19
AT49BV/LV002(N)(T) AT49LV002NT Ordering Information tACC (ns) 70 90 120 ICC (mA) Ordering Code Package Operation Range 50 0.1 AT49LV002NT-70JC AT49LV002NT-70PC AT49LV002NT-70TC AT49LV002NT-70VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.3 AT49LV002NT-70JI AT49LV002NT-70PI AT49LV002NT-70TI AT49LV002NT-70VI 32J 32P6 32T 32V Industrial (-40° to 85°C) 50 0.1 AT49LV002NT-90JC AT49LV002NT-90PC AT49LV002NT-90TC AT49LV002NT-90VC 32J 32P6 32T 32V Commercial (0° to 70°C) 50 0.
PAGE 20
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 .050(1.27) TYP 1.67(42.4) 1.64(41.7) .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) 32P6, 32-Lead, 0.600" Wide, Plastic Dual In-line Package (PDIP) Dimensions in Inches and (Millimeters) .300(7.62) REF .430(10.9) .390(9.90) AT CONTACT POINTS PIN 1 .530(13.5) .
PAGE 21
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