at49f008-90ti ATMEL Corporation, at49f008-90ti Datasheet

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at49f008-90ti

Manufacturer Part Number
at49f008-90ti
Description
At49f008 8-megabit 1m X 8 5-volt Only Flash Memory
Manufacturer
ATMEL Corporation
Datasheet
Features
Description
The AT49F008 is a 5-volt only in-system Flash Memory device. Its 8-megabits of
memory is organized as 1,024,576 words by 8-bits. Manufactured with Atmel’s
advanced nonvolatile CMOS technology, the device offers access times to 90 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 A.
Pin Configurations
Pin Name
A0 - A19
CE
OE
WE
RESET
RDY/BUSY
I/O0 - I/O7
NC
Single Voltage Operation
Fast Read Access Time - 90 ns
Internal Program Control and Timer
16K Bytes Boot Block With Lockout
Fast Erase Cycle Time - 10 seconds
Byte-By-Byte Programming - 10 µs/Byte Typical
Hardware Data Protection
DATA Polling For End Of Program Detection
Low Power Dissipation
Typical 10,000 Write Cycles
– 5V Read
– 5V Reprogramming
– 50 mA Active Current
– 100 µA CMOS Standby Current
Function
Addresses
Chip Enable
Output Enable
Write Enable
Reset
Ready/Busy Output
Data Inputs/Outputs
No Connect
RDY/BUSY
RESET
A16
A15
A14
A13
A12
A11
A18
WE
NC
A9
A8
A7
A6
A5
A4
A3
A2
A1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
TSOP Top VIew
Type 1
(continued)
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
A17
GND
NC
A19
A10
I/O7
I/O6
I/O5
I/O4
VCC
VCC
NC
I/O3
I/O2
I/O1
I/O0
OE
GND
CE
A0
8-Megabit
(1M x 8)
5-volt Only
Flash Memory
AT49F008
Recommend using
AT49F008A(T) for new
designs.
Rev. 0972B–10/98
1

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at49f008-90ti Summary of contents

Page 1

... Typical 10,000 Write Cycles Description The AT49F008 is a 5-volt only in-system Flash Memory device. Its 8-megabits of memory is organized as 1,024,576 words by 8-bits. Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers access times 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 A ...

Page 2

... This feature does not have to be acti- vated; the boot block’s usage as a write protected region is optional to the user. The address range of the AT49F008 boot block is 00000H to 03FFFH. 8 FFFFFH ...

Page 3

... DATA polling may begin at any time during the program cycle. TOGGLE BIT: In addition to DATA polling, the AT49F008 provides another method for determining the end of a pro- gram 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 ...

Page 4

... Temperature Under Bias ................................ -55°C to +125°C Storage Temperature ..................................... -65°C to +150°C All Input Voltages (including NC Pins) with Respect to Ground ...................................-0.6V to +6.25V All Output Voltages with Respect to Ground .............................-0. Voltage on OE with Respect to Ground ...................................-0.6V to +13.5V AT49F008 4 1st Bus 2nd Bus 3rd Bus Cycle Cycle Cycle Data ...

Page 5

... I/O CC RESET = GND MHz OUT -400 -100 4. AT49F008-12 AT49F008-15 0°C - 70°C -40°C - 85°C -40°C - 85°C 5V 10% I OUT High Z High Z X High Z ( Manufacturer Code H IL (3) (4) ...

Page 6

... RO HIGH Z OUTPUT - t after the address transition without impact on t ACC after the falling edge of CE without impact Output Test Load AC MEASUREMENT LEVEL Max 6 12 AT49F008-12 AT49F008-15 Max Min Max Min 90 120 90 120 800 ...

Page 7

AC Byte Load Characteristics Symbol Parameter Address, OE Set-up Time AS OES t Address Hold Time AH t Chip Select Set-up Time CS t Chip Select Hold Time CH t Write Pulse Width (WE or CE) WP ...

Page 8

... Erase Cycle Time EC Program Cycle Waveforms A0-A19 DATA Chip Erase Cycle Waveforms A0-A19 DATA Note: OE must be high only when WE and CE are both low. AT49F008 8 PROGRAM CYCLE WPH 5555 2AAA 5555 ...

Page 9

Data Polling Characteristics Symbol Parameter t Data Hold Time Hold Time OEH ( Output Delay OE t Write Recovery Time WR Notes: 1. These parameters are characterized and not 100% tested. 2. See t ...

Page 10

... Device Code is read for The device does not remain in identification mode if powered down. 4. The device returns to standard operation mode. 5. Manufacturers Code: 1FH Device Code: 22H AT49F008 10 Boot Block Lockout Feature Enable Algorithm LOAD DATA F0 TO ANY ADDRESS EXIT PRODUCT IDENTIFICATION ...

Page 11

... Thin Small Outline Package (TSOP) Ordering Code Package AT49F008-90TC 40T AT49F008-90TI 40T AT49F008-12TC 40T AT49F008-12TI 40T AT49F008-15TC 40T AT49F008-15TI 40T Package Type Operation Range Commercial ( Industrial (- Commercial ( Industrial (- ...

Page 12

... Packaging Information 40T, 40-Lead, Plastic Thin Small Outline Package (TSOP) Dimensions in Millimeters and (Inches)* *Controlling dimension: millimeters AT49F008 12 ...

Page 13

... Marks bearing and/or are registered trademarks and trademarks of Atmel Corporation. Terms and product names in this document may be trademarks of others. Atmel Operations Atmel Colorado Springs 1150 E. Cheyenne Mtn. Blvd. Colorado Springs, CO 80906 ...

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