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Número de pieza | M24L48512SA | |
Descripción | 4-Mbit (512K x 8) Pseudo Static RAM | |
Fabricantes | Elite Semiconductor Memory Technology | |
Logotipo | ||
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M24L48512SA
PSRAM
4-Mbit (512K x 8)
Pseudo Static RAM
Features
• Advanced low power architecture
• High speed: 55 ns, 60 ns and 70 ns
• Wide voltage range: 2.7V to 3.6V
• Typical active current: 1mA @ f = 1 MHz
• Low standby power
• Automatic power-down when deselected
Functional Description
The M24L48512SA is a high-performance CMOS pseudo
static RAM (PSRAM) organized as 512K words by 8 bits. Easy
memory expansion is provided by an active LOW Chip
Enable( CE ) and active LOW Output Enable ( OE ).This device
has an automatic power-down feature that reduces power
consumption dramatically when deselected. Writing to the
device is accomplished by taking Chip Enable ( CE ) and Write
Enable ( WE ) inputs LOW. Data on the eight I/O pins (I/O0
through I/O7) is then written into the location specified on the
address pins (A0 through A18).Reading from the device is
accomplished by asserting the Chip Enable ( CE ) and Output
Enable ( OE ) inputs LOW while forcing Write Enable ( WE )
HIGH . Under these conditions, the contents of the memory
location specified by the address pins will appear on the I/O
pins. The eight input/output pins (I/O0 through I/O7) are placed
in a high-impedance state when the device is deselected ( CE
HIGH), the outputs are disabled ( OE HIGH), or during write
operation ( CE LOW and WE LOW). See the Truth Table
for a complete description of read and write modes.
Logic Block Diagram
Elite Semiconductor Memory Technology Inc.
Publication Date : Jul. 2008
Revision : 1.1
1/12
1 page ESMT
www.DataSheet4U.com
M24L48512SA
Switching Characteristics (Over the Operating Range)[8] (continued)
Parameter
Description
tSA
tPWE
tSD
tHD
tHZWE
tLZWE
Address Set-up to Write Start
WE Pulse Width
Data Set-up to Write End
Data Hold from Write End
WE LOW to High Z[9, 10]
WE HIGH to Low Z[9, 10]
–55
Min.
Max.
0
40
25
0
25
5
–60
Min.
Max.
0
40
25
0
25
5
Switching Waveforms
Read Cycle 1 (Address Transition Controlled) [12, 13, 14]
–70
Min.
Max.
0
45
25
0
25
5
Unit
ns
ns
ns
ns
ns
ns
Read Cycle 2 ( OE Controlled) [12, 14]
Notes:
13.Device is continuously selected. OE , CE = VIL.
14. WE is HIGH for Read Cycle.
Elite Semiconductor Memory Technology Inc.
Publication Date: Jul. 2008
Revision: 1.1
5/12
5 Page ESMT
www.DataSheet4U.com
M24L48512SA
Revision History
Revision
1.0
1.1
Date
2007.07.19
2008.07.04
Description
Original
1. Move Revision History to the last
2. Modify voltage range 2.7V~3.3V to 2.7V~3.6V
3. Add Industrial grade
4. Add Avoid timing
Elite Semiconductor Memory Technology Inc.
Publication Date: Jul. 2008
Revision: 1.1
11/12
11 Page |
Páginas | Total 12 Páginas | |
PDF Descargar | [ Datasheet M24L48512SA.PDF ] |
Número de pieza | Descripción | Fabricantes |
M24L48512SA | 4-Mbit (512K x 8) Pseudo Static RAM | Elite Semiconductor Memory Technology |
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