AT49F2048A-70TC Atmel, AT49F2048A-70TC Datasheet - Page 8

• Manufacturer Part Number: AT49F2048A-70TC
• Description: IC FLASH 2MBIT 70NS 48TSOP
• Manufacturer: Atmel

Specifications of AT49F2048A-70TC

• Format - Memory: FLASH
• Memory Type: FLASH
• Memory Size: 2M (256K x 8 or 128K x 16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 4.5 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 48-TSOP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Program Cycle Characteristics
Program Cycle Waveforms
Sector or Chip Erase Cycle Waveforms
Notes:
8
Symbol
t
t
t
t
t
t
t
t
BP
AS
AH
DS
DH
WP
WPH
EC
1.
2.
3.
AT49F2048A
OE must be high only when WE and CE are both low.
For chip erase, the address should be 5555. For sector erase, the address depends on what sector is to be erased. (See
note 4 under Command Definitions.)
For chip erase, the data should be 10H, and for sector erase, the data should be 30H.
Parameter
Byte/Word Programming Time
Address Setup Time
Address Hold Time
Data Setup Time
Data Hold Time
Write Pulse Width
Write Pulse Width High
Erase Cycle Time
A0-A16
DATA
WE
OE
CE
(1)
A0-A16
DATA
WE
t
OE
CE
AS
t
5555
AS
WORD 0
BYTE/
AA
5555
t
t
DS
WP
t
AH
AA
2AAA
WORD 1
t
t
BYTE/
DS
WP
t
AH
55
2AAA
55
5555
t
t
WPH
DH
WORD 2
BYTE/
80
5555
t
t
PROGRAM CYCLE
WPH
DH
A0
5555
WORD 3
BYTE/
ADDRESS
AA
INPUT
DATA
2AAA
WORD 4
BYTE/
55
t
BP
Note 2
WORD 5
Note 3
BYTE/
Min
5555
50
50
50
40
0
0
t
EC
AA
Max
50
5
seconds
Units
µ
ns
ns
ns
ns
ns
ns
s