High-Speed PSRAM. MSM548512L Datasheet

MSM548512L PSRAM. Datasheet pdf. Equivalent

Part MSM548512L
Description High-Speed PSRAM
Feature E2L0044-17-Y1 www.DataSheet4U.com ¡ Semiconductor ¡ Semiconductor MSM548512L 524,288-Word ¥ 8-Bit H.
Manufacture OKI electronic
Datasheet
Download MSM548512L Datasheet




MSM548512L
E2L0044-17-Y1
www.DataSheet4U.com
¡¡SemicondSucetormiconductor
MSM548512L
524,288-Word ¥ 8-Bit High-Speed PSRAM
This versioMn:SMJan54. 18959182L
Previous version: Dec. 1996
DESCRIPTION
The MSM548512L is fabricated using OKI’s CMOS silicon gate process technology. This process,
coupled with single-transister memory storage cells, permits maximum circuit density, minimum
chip size and high speed.
MSM548512L has Self-refresh mode in addition to Address-refresh mode and Auto-refresh
mode. In the Self-refresh mode the internal refresh timer and address counter refresh the
dynamic memory cells automatically. This series allows low power consumption when using
standby mode with Self-refresh.
The MSM548512L also features a static RAM-like write function that writes the data into the
memory cell at the rising edge of WE.
FEATURES
• Large capacity
• Fast access time
• Low power
• Refresh free
• Logic compatible
• Single power supply
• Refresh
• Package compatible
• Package options:
32-pin 600 mil plastic DIP
32-pin 525 mil plastic SOP
PRODUCT FAMILY
Family
MSM548512L-80RS
MSM548512L-10RS
MSM548512L-12RS
MSM548512L-80GS-K
MSM548512L-10GS-K
MSM548512L-12GS-K
: 4-Mbit (524,288-word ¥ 8 bits)
: 80 ns max.
: 200 µA max. (standby with Self-refresh)
: Self refresh
: SRAM WE pin, no address multiplex
: 5 V ±10%
: 2048 cycle/32 ms auto-address refresh
: SRAM standard package
(DIP32-P-600-2.54) (Product : MSM548512L-xxRS)
(SOP32-P-525-1.27-K) (Product : MSM548512L-xxGS-K)
xx indicates speed rank.
Access Time (Max.)
80 ns
100 ns
120 ns
80 ns
100 ns
120 ns
Package
600 mil 32-pin
Plastic DIP
525 mil 32-pin
Plastic SOP
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MSM548512L
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MSM548512L
PIN CONFIGURATION (TOP VIEW)
A18 1
A16 2
A14 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/O0 13
I/O1 14
I/O2 15
VSS 16
32 VCC
31 A15
30 A17
29 WE
28 A13
27 A8
26 A9
25 A11
24 OE/RFSH
23 A10
22 CE
21 I/O7
20 I/O6
19 I/O5
18 I/O4
17 I/O3
32-Pin Plastic DIP
,A18 1
A16 2
A14 3
A12 4
A7 5
A6 6
A5 7
A4 8
A3 9
A2 10
A1 11
A0 12
I/O0 13
I/O1 14
I/O2 15
VSS 16
32 VCC
31 A15
30 A17
29 WE
28 A13
27 A8
26 A9
25 A11
24 OE/RFSH
23 A10
22 CE
21 I/O7
20 I/O6
19 I/O5
18 I/O4
17 I/O3
32-Pin Plastic SOP
Pin Name
A0 - A18
I/O0 - I/O7
CE
OE/RFSH
WE
VCC
VSS
Function
Address Input
Data Input/Output
Chip Enable Input
Output Enable / Refresh Input
Write Enable Input
Power Voltage (5 V)
Ground (0 V)
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