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Teilenummer | 49F1024 |
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Beschreibung | AT49F1024 | |
Hersteller | ATMEL Corporation | |
Logo | ||
Gesamt 13 Seiten www.DataSheet4U.com
Features
• Single Voltage Operation
– 5V Read
– 5V Reprogramming
• Fast Read Access Time - 45 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 45
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 pinout. The
AT49F1024 is pin compatable with the AT27C1024, and the AT49F1025 is pin com-
patable with the AT29C1024.
(continued)
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
AT49F1025 VSOP Top View
Type 1
10 x 14 mm
A0
A1
A2
A3
A4
A5
A6
A7
A8
GND
A9
A10
A11
A12
A13
A14
A15
NC
WE
VCC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
10 x 14 mm
40 OE
39 I/O0
38 I/O1
37 I/O2
36 I/O3
35 I/O4
34 I/O5
33 I/O6
32 I/07
31 GND
30 I/O8
29 I/O9
28 I/O10
27 I/O11
26 I/O12
25 I/O13
24 I/O14
23 I/O15
22 NC
21 CE
AT49F1024 VSOP Top View
Type 1
10 x 14 mm
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
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40 GND
39 A8
38 A7
37 A6
36 A5
35 A4
34 A3
33 A2
32 A1
31 A0
30 OE
29 I/O0
28 I/O1
27 I/O2
26 I/O3
25 I/O4
24 I/O5
23 I/O6
22 I/O7
21 GND
PLCC Top View
I/O12
I/O11
I/O10
I/O9
I/O8
GND
NC
I/O7
I/O6
I/O5
I/O4
7
8
9
10
11
12
13
14
15
16
17
39 A13
38 A12
37 A11
36 A10
35 A9
34 GND
33 NC
32 A8
31 A7
30 A6
29 A5
1-Megabit
(64K x 16)
5-volt Only
Flash Memory
AT49F1024
AT49F1025
Rev. 0765D–09/98
1
www.DataSheet4U.com
AC Read Characteristics
Symbol
tACC
tCE(1)
tOE(2)
tDF(3)(4)
tOH
Parameter
Address to Output Delay
CE to Output Delay
OE to Output Delay
CE or OE to Output Float
Output Hold from OE, CE or Address, whichever
occurred first
AC Read Waveforms(1)(2)(3)(4)
AT49F1024-45
AT49F1025-45
Min Max
45
45
0 30
0 25
0
AT49F1024-55
AT49F1025-55
Min Max
55
55
30
0 25
0
AT49F1024-70
AT49F1025-70
Min Max
70
70
35
0 25
0
AT49F1024-90
AT49F1025-90
Min Max
90
90
0 40
0 25
Units
ns
ns
ns
ns
0 ns
Notes: 1. CE may be delayed up to tACC - tCE after the address transition without impact on tACC.
2. OE may be delayed up to tCE - tOE after the falling edge of CE without impact on tCE or by tACC - tOE after an address change
without impact on tACC.
3. tDF is specified from OE or CE whichever occurs first (CL = 5 pF).
4. This parameter is characterized and is not 100% tested.
Input Test Waveforms and
Measurement Level
tR, tF < 5 ns
Output Test Load
45/55/70 ns
5.0V
90/120 ns
5.0V
1.8K
1.3K
OUTPUT
PIN
30 pF
1.8K
1.3K
OUTPUT
PIN
100 pF
Pin Capacitance
f = 1 MHz, T = 25°C(1)
Typ
CIN
COUT
Note:
4
8
1. This parameter is characterized and is not 100% tested.
Max
6
12
Units
pF
pF
Conditions
VIN = 0V
VOUT = 0V
6 AT49F1024/1025
6 Page www.DataSheet4U.com
AT49F1025 Ordering Information(1)
tACC
ICC (mA)
(ns) Active
Standby
Ordering Code
Package
Operation Range
45 50
0.1 AT49F1025-45JC
AT49F1025-45VC
44J
40V
Commercial
(0° to 70°C)
55 50
0.1 AT49F1025-55JC
AT49F1025-55VC
44J
40V
Commercial
(0° to 70°C)
50 0.3 AT49F1025-55JI
AT49F1025-55VI
44J
40V
Industrial
(-40° to 85°C)
70 50
0.1 AT49F1025-70JC
AT49F1025-70VC
44J
40V
Commercial
(0° to 70°C)
50 0.3 AT49F1025-70JI
AT49F1025-70VI
44J
40V
Industrial
(-40° to 85°C)
90 50
0.1 AT49F1025-90JC
AT49F1025-90VC
44J
40V
Commercial
(0° to 70°C)
50 0.3 AT49F1025-90JI
AT49F1025-90VI
44J
40V
Industrial
(-40° to 85°C)
Note:
1. The AT49F1025 has as optional boot block feature. The part number shown in the Ordering Information table is for devices
with the boot block in the lower address range (i.e., 0000H to 1FFFH). Users requiring the boot block to be in the higher
address range should contact Atmel.
44J
40V
12
Package Type
44-Lead, Plastic, J-Leaded Chip Carrier Package (PLCC)
40-Lead, Thin Small Outline Package (VSOP) (10 mm x 14 mm)
AT49F1024/1025
12 Page | ||
Seiten | Gesamt 13 Seiten | |
PDF Download | [ 49F1024 Schematic.PDF ] |
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