AT49BV-LV040 ATMEL Corporation, AT49BV-LV040 Datasheet

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AT49BV-LV040

Manufacturer Part Number
AT49BV-LV040
Description
4-megabit (512K x 8) Single 2.7-volt Battery-Voltage Flash Memory
Manufacturer
ATMEL Corporation
Datasheet
Features
Description
The AT49BV/LV040 are 3-volt only, 4-megabit Flash memories organized as 524,288
words of 8-bits each. Manufactured with Atmel’s advanced nonvolatile CMOS technol-
ogy, the devices offer 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.
The device contains a user-enabled “boot block” protection feature. The
AT49BV/LV040 locates the boot block at lowest order addresses (“bottom boot”).
Pin Configurations
Pin Name
A0 - A18
CE
OE
WE
I/O0 - I/O7
Single Voltage for Read and Write: 2.7V to 3.6V (BV), 3.0V to 3.6V (LV)
Fast Read Access Time – 70 ns
Internal Program Control and Timer
16K Bytes Boot Block with Lockout
Fast Chip 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
Typical 10,000 Write Cycles
Small Packaging
– 25 mA Active Current
– 50 µA CMOS Standby Current
– 8 x 14 mm VSOP/TSOP
I/O0
A7
A6
A5
A4
A3
A2
A1
A0
PLCC Top View
5
6
7
8
9
10
11
12
13
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
29
28
27
26
25
24
23
22
21
A14
A13
A8
A9
A11
OE
A10
CE
I/O7
VCC
A11
A13
A14
A17
A18
A16
A15
A12
WE
A9
A8
A7
A6
A5
A4
VSOP Top View (8 x 14 mm) or
TSOP Top View (8 x 20 mm)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
(continued)
OE
A10
CE
I/O7
I/O6
I/O5
I/O4
I/O3
GND
I/O2
I/O1
I/O0
A0
A1
A2
A3
4-megabit
(512K x 8)
Single 2.7-volt
Battery-Voltage
Flash Memory
AT49BV040
AT49LV040
Rev. 0679D–03/01
1

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AT49BV-LV040 Summary of contents

Page 1

... Small Packaging – VSOP/TSOP Description The AT49BV/LV040 are 3-volt only, 4-megabit Flash memories organized as 524,288 words of 8-bits each. Manufactured with Atmel’s advanced nonvolatile CMOS technol- ogy, the devices offer access times 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 µ ...

Page 2

... To allow for simple in-system reprogrammability, the AT49BV/LV040 does not require high input voltages for programming. Three-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. Reprogramming the AT49BV/LV040 is performed by eras programming on a byte-by-byte basis. The typical byte pro- gramming time is a fast 30 µ ...

Page 3

... Examining the toggle bit may begin at any time during a program cycle. HARDWARE DATA PROTECTION: The Hardware Data Protection feature protects against inadvertent programs to the AT49BV/LV040 in the following ways: ( below 1.8V (typical), the program function is inhib- CC ited ...

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. 13.5V AT49BV/LV040 4 1st Bus 2nd Bus 3rd Bus Cycle Cycle Cycle Data ...

Page 5

... MHz mA 3.6V OUT 2 -100 µ 3. AT49BV/LV040 AT49BV040-12 0°C - 70°C 0°C - 70°C -40°C - 85°C 2.7V to 3.6V I/O D OUT D IN High-Z High-Z ( Manufacturer Code IL ( (4) Device Code IH Manufacturer Code ...

Page 6

... ACC after the falling edge of CE without impact Output Test Load Max 6 12 AT49BV/LV040-90 AT49BV040-12 Min Max Min Max 90 120 90 120 ACC ...

Page 7

... CS t Chip Select Hold Time CH t Write Pulse Width ( Data Setup Time Data, OE Hold Time DH OEH t Write Pulse Width High WPH AC Byte Load Waveforms WE Controlled CE Controlled AT49BV/LV040 Min Max Units 0 ns 100 200 ns 100 200 ns 7 ...

Page 8

... Data Hold Time DH t Write Pulse Width WP t Write Pulse Width High WPH t Erase Cycle Time EC Program Cycle Waveforms Chip Erase Cycle Waveforms Note: OE must be high only when WE and CE are both low. AT49BV/LV040 8 Min Typ Max 100 100 0 200 200 10 Units µ ...

Page 9

... Toggle Bit Waveforms Notes: 1. Toggling either both OE and CE will operate toggle bit. The t input(s). 2. Beginning and ending state of I/O6 will vary. 3. Any address location may be used but the address should not vary. (1) (1) AT49BV/LV040 Min Typ Max Min Typ ...

Page 10

... Manufacturer Code is read for 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. Manufacturer Code: 1FH Device Code: 13H AT49BV/LV040 10 (1) Boot Block Lockout Feature Enable Algorithm (1) LOAD DATA F0 ...

Page 11

... AT49BV/LV040 Ordering Information I (mA ACC (ns) Active Standby 90 25 0.05 120 0.05 32J 32-lead, Plastic J-leaded Chip Carrier Package (PLCC) 32T 32-lead, Plastic Thin Small Outline Package (TSOP mm) 32V 32-lead, Plastic Thin Small Outline Package (TSOP mm) Ordering Code ...

Page 12

... REF 8.10(.319) 7.90(.311) 0.15(.006) 0.05(.002 REF 0.70(.028) 0.50(.020) *Controlling dimension: millimeters AT49BV/LV040 12 32T, 32-lead, Plastic Thin Small Outline Package (TSOP) Dimensions in Millimeters and (Inches)* JEDEC OUTLINE MO-142 BA .025(.635) X 30˚ - 45˚ .012(.305) .008(.203) .530(13.5) .490(12.4) .021(.533) ...

Page 13

... Atmel Corporation 2001. Atmel Corporation makes no warranty for the use of its products, other than those expressly contained in the Company’s standard warranty which is detailed in Atmel’s Terms and Conditions located on the Company’s web site. The Company assumes no responsibility for any errors which may appear in this document, reserves the right to change devices or specifications detailed herein at any time without notice, and does not make any commitment to update the information contained herein ...

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