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PDF AT49F2048A Data sheet ( Hoja de datos )
| Número de pieza | AT49F2048A | |
| Descripción | 2-Megabit 5-volt Only CMOS Flash Memory | |
| Fabricantes | ATMEL Corporation | |
| Logotipo |  |
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Features
• Single-voltage Operation
– 5V Read
– 5V Reprogramming
• Fast Read Access Time – 70 ns
• Internal Erase/Program Control
• Sector Architecture
– One 8K Word (16K Bytes) Boot Block with Programming Lockout
– Two 4K Word (8K Bytes) Parameter Blocks
– One 112K Word (224K bytes) Main Memory Array Block
• Fast Sector Erase Time – 10 seconds
• Byte-by-byte or Word-by-word Programming – 50 µs
• 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 AT49F2048A is a 5-volt-only, 2-megabit Flash memory organized as 262,144
words of 8 bits each or 128K words of 16 bits each. Manufactured with Atmel’s
Pin Configurations
(continued)
Pin Name Function
A0 - A16
Addresses
CE Chip Enable
OE Output Enable
WE Write Enable
RESET
Reset
I/O0 - I/O14 Data Inputs/Outputs
I/O15 (A-1)
I/O15 (Data Input/Output, Word Mode)
A-1 (LSB Address Input, Byte Mode)
BYTE
NC
Selects Byte or Word Mode
No Connect
SOIC (SOP)
NC
NC
NC
A7
A6
A5
A4
A3
A2
A1
A0
CE
GND
OE
I/O0
I/O8
I/O1
I/O9
I/O2
I/O10
I/O3
I/O11
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44 RESET
43 WE
42 A8
41 A9
40 A10
39 A11
38 A12
37 A13
36 A14
35 A15
34 A16
33 BYTE
32 GND
31 I/O15/A-1
30 I/O7
29 I/O14
28 I/O6
27 I/O13
26 I/O5
25 I/O12
24 I/O4
23 VCC
A15
A14
A13
A12
A11
A10
A9
A8
NC
NC
WE
RESET
NC
NC
NC
NC
NC
A7
A6
A5
A4
A3
A2
A1
Note:
TSOP Top View
Type 1
1 48 A16
2 47 BYTE
3 46 GND
4 45 I/O15/A-1
5 44 I/O7
6 43 I/O14
7 42 I/O6
8 41 I/O13
9 40 I/O5
10 39 I/O12
11 38 I/O4
12 37 VCC
13 36 I/O11
14 35 I/O3
15 34 I/O10
16 33 I/O2
17 32 I/O9
18 31 I/O1
19 30 I/O8
20 29 I/O0
21 28 OE
22 27 GND
23 26 CE
24 25 A0
“•” denotes a white dot marked on
the package.
2-megabit
(256K x 8/
128K x 16)
5-volt Only
CMOS Flash
Memory
AT49F2048A
Rev. 1159F–04/01
1
1 page  
AT49F2048A
DC and AC Operating Range
Operating
Temperature (Case)
VCC Power Supply
Com.
Ind.
AT49F2048A-70
0°C - 70°C
-40°C - 85°C
5V± 10%
Operating Modes
Mode
CE OE WE RESET
Ai
Read
Program/Erase(2)
Standby/Write Inhibit
Program Inhibit
Program Inhibit
Output Disable
Reset
Product Identification
Hardware
VIL VIL VIH
VIL VIH VIL
VIH X (1) X
X X VIH
X VIL X
X VIH X
XX X
VIH
VIH
VIH
VIH
VIH
VIH
VIL
VIL VIL VIH
VIH
Software(5)
VIH
Notes:
1. X can be VIL or VIH.
2. Refer to AC programming waveforms.
3. VH = 12.0V ± 0.5V.
4. Manufacturer Code: 001FH, Device Code: 0082H
5. See details under Software Product Identification Entry/Exit.
Ai
Ai
X
X
A1 - A16 = VIL, A9 = VH,(3)
A0 = VIL
A1 - A16 = VIL, A9 = VH,(3)
A0 = VIH
A0 = VIL, A1 - A16 = VIL
A0 = VIH, A1 - A16 = VIL
DC Characteristics
Symbol Parameter
ILI
ILO
ISB1
ISB2
ICC(1)
VIL
VIH
VOL
VOH1
VOH2
Note:
Input Load Current
Output Leakage Current
VCC Standby Current CMOS
VCC Standby Current TTL
VCC Active Current
Input Low Voltage
Input High Voltage
Output Low Voltage
Output High Voltage
Output High Voltage CMOS
1. In the erase mode, ICC is 90 mA.
Condition
VIN = 0V to VCC
VI/O = 0V to VCC
CE = VCC - 0.3V to VCC
CE = 2.0V to VCC
f = 5 MHz; IOUT = 0 mA
IOL = 2.1 mA
IOH = -400 µA
IOH = -100 µA; VCC = 4.5V
1159F–04/01
AT49F2048A-90
0°C - 70°C
-40°C - 85°C
5V± 10%
I/O
DOUT
DIN
High-Z
High-Z
High-Z
Manufacturer Code(4)
Device Code(4)
Manufacturer Code(4)
Device Code(4)
Min Max Units
10.0 µA
10.0 µA
100.0 µA
3.0 mA
50.0 mA
0.8 V
2.0 V
0.45 V
2.4 V
4.2 V
5
5 Page 
Ordering Information
tACC
ICC (mA)
(ns) Active
Standby
70 50
0.3
50 0.3
90 50
0.3
50 0.3
Ordering Code
AT49F2048A-70RC
AT49F2048A-70TC
AT49F2048A-70RI
AT49F2048A-70TI
AT49F2048A-90RC
AT49F2048A-90TC
AT49F2048A-90RI
AT49F2048A-90TI
AT49F2048A
Package
44R
48T
44R
48T
44R
48T
44R
48T
Operation Range
Commercial
(0° to 70°C)
Industrial
(-40° to 85°C)
Commercial
(0° to 70°C)
Industrial
(-40° to 85°C)
Package Type
44R 44-lead, 0.525" Wide, Plastic Gull Wing Small Outline Package (SOIC/SOP)
48T 48-lead, Thin Small Outline Package (TSOP)
1159F–04/01
11
11 Page | ||
| Páginas | Total 13 Páginas | |
| PDF Descargar | [ Datasheet AT49F2048A.PDF ] | |
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