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Features

• Single Supply Voltage, Range 3V to 3.6V

• 3-volt Only Read and Write Operation

• Software Protected Programming

• Low-power Dissipation

– 15mAActiveCurrent

– 40 µA CMOS Standby Current

• Fast Read Access Time – 120 ns

• Sector Program Operation

– Single-cycle Reprogram (Erase and Program)

– 512 Sectors (128 Bytes/Sector)

– Internal Address and Data Latches for 128 Bytes

• Fast Sector Program Cycle Time – 20 ms Max.

• Internal Program Control and Timer

• DATA Polling for End of Program Detection

• Typical Endurance > 10,000 Cycles

• CMOS and TTL Compatible Inputs and Outputs

• Commercial and Industrial Temperature Ranges

Description

The AT29LV512 is a 3-volt-only in-system Flash programmable erasable read-only

memory (PEROM). Its 512K of memory is organized as 65,536 words by 8 bits. Man-

ufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers

access times to 120 ns with power dissipation of just 54 mW over the commercial tem-

perature range. When the device is deselected, the CMOS standby current is less

than 40 µA. The device endurance is such that any sector can typically be written to in

excess of 10,000 times.

512K (64K x 8)

3-volt Only

Flash Memory

AT29LV512

Rev. 0177M–05/02

Pin Configurations

Pin Name Function

A0 - A15 Addresses

CE

Chip Enable

OE

Output Enable

WE

Write Enable

I/O0 - I/O7 Data Inputs/Outputs

NC No Connect

TSOP Top View

Type 1

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2

3

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6

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12

13

14

15

16

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

A11

A9

A8

A13

A14

NC

WE

VCC

NC

NC

A15

A12

A7

A6

A5

A4

OE

A10

CE

I/O7

I/O6

I/O5

I/O4

I/O3

GND

I/O2

I/O1

I/O0

A0

A1

A2

A3

PLCC Top View

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6

7

8

9

10

11

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29

28

27

26

25

24

23

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21

A7

A6

A5

A4

A3

A2

A1

A0

I/O0

A14

A13

A8

A9

A11

OE

A10

CE

I/O7

4

3

2

1

32

31

30

14

15

16

17

18

19

20

I/O1

I/O2

GND

I/O3

I/O4

I/O5

I/O6

A12

A15

NC

NC

VCC

WE

NC

Summary of content (14 pages)

PAGE 1
Features • • • • • • • • • • • • Single Supply Voltage, Range 3V to 3.6V 3-volt Only Read and Write Operation Software Protected Programming Low-power Dissipation – 15 mA Active Current – 40 µA CMOS Standby Current Fast Read Access Time – 120 ns Sector Program Operation – Single-cycle Reprogram (Erase and Program) – 512 Sectors (128 Bytes/Sector) – Internal Address and Data Latches for 128 Bytes Fast Sector Program Cycle Time – 20 ms Max.
PAGE 2
To allow for simple in-system reprogrammability, the AT29LV512 does not require high input voltages for programming. Three-volt-only commands determine the operation of the device. Reading data out of the device is similar to reading from an EPROM. Reprogramming the AT29LV512 is performed on a sector basis; 128 bytes of data are loaded into the device and then simultaneously programmed.
PAGE 3
AT29LV512 Any attempt to write to the device without the 3-byte command sequence will start the internal write timers. No data will be written to the device; however, for the duration of tWC, a read operation will effectively be a polling operation. After the software data protection’s 3-byte command code is given, a byte load is performed by applying a low pulse on the WE or CE input with CE or WE low (respectively) and OE high. The address is latched on the falling edge of CE or WE, whichever occurs last.
PAGE 4
TOGGLE BIT: In addition to DATA polling the AT29LV512 provides another method for determining the end of a program or erase cycle. During a program or erase operation, successive attempts to read data from the device will result in I/O6 toggling between one and zero. Once the program cycle has completed, I/O6 will stop toggling and valid data will be read. Examining the toggle bit may begin at any time during a program cycle.
PAGE 5
AT29LV512 DC and AC Operating Range Operating Temperature (Case) VCC Power Supply Notes: Com. Ind. (1) AT29LV512-12 AT29LV512-15 AT29LV512-20 AT29LV512-25 0°C - 70°C 0°C - 70°C 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C -40°C - 85°C -40°C - 85°C 3.3V ± 0.3V 3.3V ± 0.3V 3.3V ± 0.3V 3.3V ± 0.3V 1. After power is applied and VCC is at the minimum specified data sheet value, the system should wait 20 ms before an operational mode is started. 2. Not recommended for New Designs.
PAGE 6
AC Read Characteristics AT29LV512-12 Symbol Parameter tACC Min Max AT29LV512-15 Min Max AT29LV512-20 Min Max AT29LV512-25 Min Max Units Address to Output Delay 120 150 200 250 ns (1) CE to Output Delay 120 150 200 250 ns tOE(2) OE to Output Delay 0 50 0 70 0 100 0 120 ns CE or OE to Output Float 0 30 0 40 0 50 0 60 ns Output Hold from OE, CE or Address, whichever occurred first 0 tCE tDF (3)(4) tOH Note: 0 0 0 ns Not recommended for New Designs.
PAGE 7
AT29LV512 Pin Capacitance f = 1 MHz, T = 25°C(1) Symbol CIN COUT Note: Typ Max Units Conditions 4 6 pF VIN = 0V 8 12 pF VOUT = 0V 1. These parameters are characterized and not 100% tested.
PAGE 8
Program Cycle Characteristics Symbol Parameter tWC Write Cycle Time tAS Address Set-up Time tAH Min Max Units 20 ms 0 ns Address Hold Time 100 ns tDS Data Set-up Time 100 ns tDH Data Hold Time 10 ns tWP Write Pulse Width 200 ns tBLC Byte Load Cycle Time tWPH Write Pulse Width High 150 200 µs ns Software Protected Program Waveform(1)(2)(3) Notes: 1. OE must be high when WE and CE are both low. 2.
PAGE 9
AT29LV512 Data Polling Characteristics(1) Symbol Parameter tDH Data Hold Time tOEH OE Hold Time Min Max OE to Output Delay tWR Write Recovery Time Units 10 ns 10 ns (2) tOE Notes: Typ ns 0 ns 1. These parameters are characterized and not 100% tested. 2. See tOE spec in AC Read Characteristics.
PAGE 10
Software Product Identification Entry(1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 90 TO ADDRESS 5555 PAUSE 20 mS Notes: 1. 2. 3. 4. 5. ENTER PRODUCT IDENTIFICATION MODE(2)(3)(5) Data Format: I/O7 - I/O0 (Hex); Address Format: A14 - A0 (Hex). A1 - A15 = VIL. Manufacturer Code is read for A0 = VIL; Device Code is read for A0 = VIH. The device does not remain in identification mode if powered down. The device returns to standard operation mode. Manufacturer Code is 1F.
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AT29LV512 Ordering Information ICC (mA) tACC (ns) Active Standby 120 15 150 200 250 Note: Ordering Code Package Operation Range 0.04 AT29LV512-12JC AT29LV512-12TC 32J 32T Commercial (0° to 70°C) 15 0.05 AT29LV512-12JI AT29LV512-12TI 32J 32T Industrial (-40° to 85°C) 15 0.04 AT29LV512-15JC AT29LV512-15TC 32J 32T Commercial (0° to 70°C) 15 0.05 AT29LV512-15JI AT29LV512-15TI 32J 32T Industrial (-40° to 85°C) 15 0.
PAGE 12
Packaging Information 32J – PLCC 1.14(0.045) X 45˚ PIN NO. 1 IDENTIFIER 1.14(0.045) X 45˚ 0.318(0.0125) 0.191(0.0075) E1 E2 B1 E B e A2 D1 A1 D A 0.51(0.020)MAX 45˚ MAX (3X) COMMON DIMENSIONS (Unit of Measure = mm) D2 Notes: 1. This package conforms to JEDEC reference MS-016, Variation AE. 2. Dimensions D1 and E1 do not include mold protrusion. Allowable protrusion is .010"(0.254 mm) per side.
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AT29LV512 32T – TSOP PIN 1 0º ~ 8º c Pin 1 Identifier D1 D L b e L1 A2 E A GAGE PLANE SEATING PLANE COMMON DIMENSIONS (Unit of Measure = mm) A1 MIN NOM MAX A – – 1.20 A1 0.05 – 0.15 A2 0.95 1.00 1.05 D 19.80 20.00 20.20 D1 18.30 18.40 18.50 Note 2 E 7.90 8.00 8.10 Note 2 L 0.50 0.60 0.70 SYMBOL Notes: 1. This package conforms to JEDEC reference MO-142, Variation BD. 2. Dimensions D1 and E do not include mold protrusion. Allowable protrusion on E is 0.
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