MSM514900C Datasheet, PDF (1/16 Pages) OKI electronic componets – 524,288-Word x 9-Bit DYNAMIC RAM : FAST PAGE MODE TYPE

E2G0025-17-42
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MSM514900C/CSL
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Previous version: May 1997
524,288-Word ¥ 9-Bit DYNAMIC RAM : FAST PAGE MODE TYPE
DESCRIPTION
The MSM514900C/CSL is a 524,288-word ¥ 9-bit dynamic RAM fabricated in Oki's silicon-gate
CMOS technology. The MSM514900C/CSL achieves high integration, high-speed operation, and
low-power consumption because Oki manufactures the device in a quadruple-layer polysilicon/
single-layer metal CMOS process. The MSM514900C/CSL is available in a 28-pin plastic SOJ or 28-
pin plastic TSOP. The MSM514900CSL (the self-refresh version) is specially designed for lower-
power applications.
FEATURES
• 524,288-word ¥ 9-bit configuration
• Single 5 V power supply, ±10% tolerance
• Input : TTL compatible, low input capacitance
• Output : TTL compatible, 3-state
• Refresh : 1024 cycles/16 ms, 1024 cycles/128 ms (SL version)
• Fast page mode, read modify write capability
• CAS before RAS refresh, hidden refresh, RAS-only refresh capability
• CAS before RAS self-refresh capability (SL version)
• Package options:
28-pin 400 mil plastic SOJ
(SOJ28-P-400-1.27) (Product : MSM514900C/CSL-xxJS)
28-pin 400 mil plastic TSOP (TSOPII28-P-400-1.27-K) (Product : MSM514900C/CSL-xxTS-K)
xx indicates speed rank.
PRODUCT FAMILY
Family
MSM514900C/CSL-60
MSM514900C/CSL-70
MSM514900C/CSL-80
Access Time (Max.) _{Cycle Time}
Power Dissipation
t_RAC t_AA t_CAC t_OEA ^(Min.) Operating (Max.) Standby (Max.)
60 ns 35 ns 20 ns 20 ns
70 ns 35 ns 20 ns 20 ns
80 ns 40 ns 20 ns 20 ns
110 ns
130 ns
150 ns
770 mW
715 mW
660 mW
5.5 mW/
1.1 mW (SL version)
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