User Manual

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AT49F1025

PLCC Top View

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39

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29

I/O12

I/O11

I/O10

I/O9

I/O8

GND

NC

I/O7

I/O6

I/O5

I/O4

A13

A12

A11

A10

A9

GND

NC

A8

A7

A6

A5

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I/O3

I/O2

I/O1

I/O0

OE

NC

A0

A1

A2

A3

A4

I/O13

I/O14

I/O15

CE

NC

NC

VCC

WE

NC

A15

A14

Features

• Single-voltage Operation

–5V Read

– 5V Reprogramming

• Fast Read Access Time – 35 ns

• Internal Program Control and Timer

• 8K Word Boot Block with Lockout

• Fast Erase Cycle Time – 10 seconds

• Word-by-word Programming – 10 µs/Word Typical

• Hardware Data Protection

• Data Polling for End of Program Detection

• Small 10 x 14 mm VSOP Package

• Typical 10,000 Write Cycles

Description

The AT49F1024 and the AT49F1025 are 5-volt-only in-system Flash memories. Their

1 megabit of memory is organized as 65,536 words by 16 bits. Manufactured with

Atmel’s advanced nonvolatile CMOS technology, the devices offer access times to

35 ns with power dissipation of just 275 mW over the commercial temperature range.

When the device is deselected, the CMOS standby current is less than 100 µA. The

only difference between the AT49F1024 and the AT49F1025 is the package.

To allow for simple in-system reprogrammability, the AT49F1024/1025 does not

require high-input voltages for programming. Five-volt-only commands determine the

Rev. 0765I–05/01

1-megabit

(64K x 16)

5-volt Only

Flash Memory

AT49F1024

AT49F1025

Pin Configurations

Pin Name Function

A0 - A15 Addresses

CE

Chip Enable

OE

Output Enable

WE Write Enable

I/O0 - I/O15 Data Inputs/Outputs

NC No Connect

(continued)

AT49F1024 VSOP Top View

Type 1

10 x 14 mm

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A9

A10

A11

A12

A13

A14

A15

NC

WE

VCC

NC

CE

I/O15

I/O14

I/O13

I/O12

I/O11

I/O10

I/O9

I/O8

GND

A8

A7

A6

A5

A4

A3

A2

A1

A0

OE

I/O0

I/O1

I/O2

I/O3

I/O4

I/O5

I/O6

I/O7

GND

Summary of content (15 pages)

PAGE 1
Features • Single-voltage Operation • • • • • • • • • – 5V Read – 5V Reprogramming Fast Read Access Time – 35 ns Internal Program Control and Timer 8K Word Boot Block with Lockout Fast Erase Cycle Time – 10 seconds Word-by-word Programming – 10 µs/Word Typical Hardware Data Protection Data Polling for End of Program Detection Small 10 x 14 mm VSOP Package Typical 10,000 Write Cycles Description The AT49F1024 and the AT49F1025 are 5-volt-only in-system Flash memories.
PAGE 2
read and programming operation of the device. Reading data out of the device is similar to reading from an EPROM. Reprogramming the AT49F1024/1025 is performed by erasing a block of data (entire chip or main memory block) and then programming on a word-by-word basis. The typical word programming time is a fast 10 µs. The end of a program cycle can be optionally detected by the Data Polling feature. Once the end of a byte program cycle has been detected, a new access for a read or program can begin.
PAGE 3
AT49F1024/1025 operation (please refer to the Command Definitions table). The device will automatically generate the required internal program pulses. The program cycle has addresses latched on the falling edge of WE or CE, whichever occurs last, and the data latched on the rising edge of WE or CE, whichever occurs first. Programming is completed after the specified tBP cycle time. The Data Polling feature may also be used to indicate the end of a program cycle.
PAGE 4
Command Definition (in Hex) Command Sequence 1st Bus Cycle Bus Cycles Addr Data Read 1 Addr DOUT Chip Erase 6 5555 Main Memory Erase 6 Word Program 2nd Bus Cycle 3rd Bus Cycle 4th Bus Cycle 5th Bus Cycle 6th Bus Cycle Addr Data Addr Data Addr Data Addr Data Addr Data AA 2AAA 55 5555 80 5555 AA 2AAA 55 5555 10 5555 AA 2AAA 55 5555 80 5555 AA 2AAA 55 5555 30 4 5555 AA 2AAA 55 5555 A0 Addr DIN 6 5555 AA 2AAA 55 5555 80 5555 AA 2AAA 55 555
PAGE 5
AT49F1024/1025 DC and AC Operating Range Operating Temperature (Case) Com. AT49F1024-35 AT49F1025-35 AT49F1024-45 AT49F1025-45 AT49F1024-50 AT49F1024-55 AT49F1025-55 AT49F1024-70 AT49F1025-70 0°C - 70°C 0°C - 70°C 0°C - 70°C 0°C - 70°C 0°C - 70°C -40°C - 85°C -40°C - 85°C 5V ± 10% 5V ± 10% Ind.
PAGE 6
AC Read Characteristics AT49F1024-35 AT49F1025-35 AT49F1024-45 AT49F1025-45 AT49F1024-50 AT49F1024-55 AT49F1025-55 AT49F1024-70 AT49F1025-70 Min Min Min Min Min Symbol Parameter Max tACC Address to Output Delay 35 45 50 tCE(1) CE to Output Delay 35 45 tOE(2) OE to Output Delay 0 25 0 tDF(3)(4) CE or OE to Output Float 0 25 0 tOH Output Hold from OE, CE or Address, whichever occurred first 0 0 Max Max Units 55 70 ns 50 55 70 ns 30 30 30 35 ns 25 25 25 ns
PAGE 7
AT49F1024/1025 Input Test Waveforms and Measurement Level tR, tF < 5 ns Output Test Load 5.0V 1.8K OUTPUT PIN 1.3K 30 pF Pin Capacitance f = 1 MHz, T = 25°C(1) Symbol Typ Max Units Conditions CIN 4 6 pF VIN = 0V COUT 8 12 pF VOUT = 0V Note: 1. This parameter is characterized and is not 100% tested.
PAGE 8
AC Word Load Characteristics Symbol Parameter Min Max Units tAS, tOES Address, OE Setup Time 0 ns tAH Address Hold Time 50 ns tCS Chip Select Setup Time 0 ns tCH Chip Select Hold Time 0 ns tWP Write Pulse Width (WE or CE) 50 ns tDS Data Setup Time 50 ns tDH, tOEH Data, OE Hold Time 0 ns tWPH Write Pulse Width High 40 ns AC Word 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 t
PAGE 9
AT49F1024/1025 Program Cycle Characteristics Symbol Parameter Min Typ Max Units tBP Word Programming Time 10 50 µs tAS Address Setup Time 0 ns tAH Address Hold Time 50 ns tDS Data Setup Time 50 ns tDH Data Hold Time 0 ns tWP Write Pulse Width 50 ns tWPH Write Pulse Width High 40 ns tEC Erase Cycle Time 3 seconds Program Cycle Waveforms A0-A15 Main Memory or Chip Erase Cycle Waveforms OE CE t WP t WPH WE t AS A0-A15 t AH t DH 5555 5555 5555 2AAA 5555 2AAA
PAGE 10
Data Polling Characteristics(1) 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” on page 6.
PAGE 11
AT49F1024/1025 Software Product Identification Entry(1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 90 TO ADDRESS 5555 ENTER PRODUCT IDENTIFICATION MODE(2)(3)(5) Software Product Identification Exit(1) LOAD DATA AA TO ADDRESS 5555 OR LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA F0 TO ANY ADDRESS EXIT PRODUCT IDENTIFICATION MODE(4) LOAD DATA F0 TO ADDRESS 5555 EXIT PRODUCT IDENTIFICATION MODE(4) Notes: 1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex).
PAGE 12
Boot Block Lockout Enable Algorithm(1) LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 80 TO ADDRESS 5555 LOAD DATA AA TO ADDRESS 5555 LOAD DATA 55 TO ADDRESS 2AAA LOAD DATA 40 TO ADDRESS 5555 PAUSE 1 second(2) Notes: 1. Data Format: I/O15 - I/O8 (Don’t Care); I/O7 - I/O0 (Hex). Address Format: A15 - A0 (Hex); A15 (Don’t Care). 2. Boot Block Lockout feature enabled.
PAGE 13
AT49F1024/1025 AT49F1024 Ordering Information ICC (mA) tACC (ns) Active Standby Ordering Code Package 35 50 0.1 AT49F1024-35VC 40V Commercial (0° to 70°C) 45 50 0.1 AT49F1024-45VC 40V Commercial (0° to 70°C) 50 50 0.1 AT49F1024-50VC 40V Commercial (0° to 70°C) 55 50 0.1 AT49F1024-55VC 40V Commercial (0° to 70°C) 50 0.3 AT49F1024-55VI 40V Industrial (-40° to 85°C) 50 0.1 AT49F1024-70VC 40V Commercial (0° to 70°C) 50 0.
PAGE 14
Packaging Information 44J, 44-lead, Plastic J-leaded Chip Carrier (PLCC) Dimensions in Inches and (Millimeters) JEDEC STANDARD MS-018 AC .045(1.14) X 45° PIN NO. 1 IDENTIFY .045(1.14) X 30° - 45° .012(.305) .008(.203) .630(16.0) .590(15.0) .656(16.7) SQ .650(16.5) .032(.813) .026(.660) .695(17.7) SQ .685(17.4) .050(1.27) TYP .500(12.7) REF SQ 40V, 40-lead, Plastic Thin Small Outline Package (VSOP) Dimensions in Millimeters and (Inches)* .021(.533) .013(.330) .043(1.09) .020(.508) .120(3.05) .
PAGE 15
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.