AT49F040 Datasheet PDF - ATMEL Corporation
| Part Number | AT49F040 | |
| Description | 5-volt-only in-system Flash Memory | |
| Manufacturers | ATMEL Corporation | |
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Features
• Single-voltage Operation
– 5V Read
– 5V Reprogramming
• Fast Read Access Time – 55 ns
• Internal Program Control and Timer
• 16-Kbyte Boot Block with Lockout
• Fast Erase Cycle Time – 10 seconds
• Byte-by-byte Programming – 50 µs/Byte
• Hardware Data Protection
• DATA Polling for End of Program Detection
• Low Power Dissipation
– 50 mA Active Current
– 100 µA CMOS Standby Current
• Typical 10,000 Write Cycles
Description
The AT49F040 is a 5-volt-only in-system Flash Memory. Its 4 megabits of memory is
organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvola-
tile CMOS technology, the device offers access times to 55 ns with power dissipation
of just 275 mW over the commercial temperature range. When the device is dese-
lected, the CMOS standby current is less than 100 µA.
The device contains a user-enabled “boot block” protection feature. The AT49F040
locates the boot block at lowest order addresses (“bottom boot”).
(continued)
4-megabit
(512K x 8)
5-volt Only
Flash Memory
AT49F040
Pin Configurations
Pin Name
A0 - A18
CE
OE
WE
I/O0 - I/O7
Function
Addresses
Chip Enable
Output Enable
Write Enable
Data Inputs/Outputs
TSOP Top View
Type 1
A11
A9
A8
A13
A14
A17
WE
VCC
A18
A16
A15
A12
A7
A6
A5
A4
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32 OE
31 A10
30 CE
29 I/O7
28 I/O6
27 I/O5
26 I/O4
25 I/O3
24 GND
23 I/O2
22 I/O1
21 I/O0
20 A0
19 A1
18 A2
17 A3
DIP Top View
A18
A16
A15
A12
A7
A6
A5
A4
A3
A2
A1
A0
I/O0
I/O1
I/O2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32 VCC
31 WE
30 A17
29 A14
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE
21 I/O7
20 I/O6
19 I/O5
18 I/O4
17 I/O3
PLCC Top View
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/O0 13
29 A14
28 A13
27 A8
26 A9
25 A11
24 OE
23 A10
22 CE
21 I/O7
Rev. 0998D–03/01
1
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AT49F040
DC and AC Operating Range
Operating
Temperature (Case)
VCC Power Supply
Com.
Ind.
AT49F040-55
0°C - 70°C
-40°C - 85°C
5V ± 10%
AT49F040-70
0°C - 70°C
-40°C - 85°C
5V ± 10%
AT49F040-90
0°C - 70°C
-40°C - 85°C
5V ± 10%
AT49F040-12
0°C - 70°C
-40°C - 85°C
5V ± 10%
Operating Modes
Mode
Read
Program(2)
Standby/Write Inhibit
Program Inhibit
Output Disable
Product Identification
Hardware
CE
VIL
VIL
VIH
X
X
X
VIL
OE
VIL
VIH
X(1)
X
VIL
VIH
WE
VIH
VIL
X
VIH
X
X
VIL VIH
Software(5)
Notes:
1. X can be VIL or VIH.
2. Refer to AC Programming Waveforms.
3. VH = 12.0V ± 0.5V.
4. Manufacturer Code: 1FH, Device Code: 13H.
5. See details under Software Product Identification Entry/Exit.
DC Characteristics
Symbol
ILI
ILO
Parameter
Input Load Current
Output Leakage Current
Condition
VIN = 0V to VCC
VI/O = 0V to VCC
ISB1
VCC Standby Current CMOS
CE = VCC - 0.3V to VCC
ISB2
ICC(1)
VIL
VIH
VOL
VOH1
VOH2
Note:
VCC Standby Current TTL
VCC Active Current
Input Low Voltage
CE = 2.0V to VCC
f = 5 MHz; IOUT = 0 mA
Input High Voltage
Output Low Voltage
IOL = 2.1 mA
Output High Voltage
IOH = -400 µA
Output High Voltage CMOS
IOH = -100 µA; VCC = 4.5V
1. In the erase mode, ICC is 90 mA.
Ai
Ai
Ai
X
A1 - A18 = VIL, A9 = VH,(3)
A0 = VIL
A1 - A18 = VIL, A9 = VH,(3)
A0 = VIH
A0 = VIL, A1 - A18 = VIL
A0 = VIH, A1 - A18 = VIL
Min
Com.
Ind.
2.0
2.4
4.2
I/O
DOUT
DIN
High Z
High Z
Manufacturer Code(4)
Device Code(4)
Manufacturer Code(4)
Device Code(4)
Max
10
10
100
300
3
50
0.8
0.45
Units
µA
µA
µA
µA
mA
mA
V
V
V
V
V
5
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for AT49F040 electronic component. |
| Information | Total 13 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ AT49F040.PDF Datasheet ] | |
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Featured Datasheets
| Part Number | Description | MFRS |
| AT49F040 | The function is 5-volt-only in-system Flash Memory. ATMEL Corporation | |
| AT49F040A | The function is 5-volt only in-system reprogrammable Flash memory. ATMEL Corporation | |
| AT49F040B | The function is Flash Memory. ATMEL Corporation | |
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