"256k x 4-bit" = (262,144-Word x 4-Bit) DYNAMIC RAM : FAST PAGE MODE TYPE
Manufacturer: OKI Integrated Circuit
Part: MSM514256C-70Z, 20pin ZIP-Package
Quantity: 4 pieces
DESCRIPTION:
The MSM514256C/CL is a 262,144-word x 4-bit dynamic RAM fabricated in Oki's silicon-gate CMOS
technology. The MSM514256C/CL 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 MSM514256C/CL is available in a 20-pin plastic DIP, 26/20-pin plastic
SOJ, or 20-pin plastic ZIP. The MSM514256CL (the low-power version) is specially designed for
lower-power applications.
FEATURES:
• 262,144-word ´ 4-bit configuration
• Single 5 V power supply, ±10% tolerance
• Input : TTL compatible, low input capacitance
• Output : TTL compatible, 3-state
• Refresh : 512 cycles/8 ms, 512 cycles/64 ms (L-version)
• Fast page mode, read modify write capability
• CAS before RAS refresh, hidden refresh, RAS-only refresh capability
• Package options:
20-pin 300 mil plastic DIP (DIP20-P-300-2.54-W1) (Product : MSM514256C/CL-xxRS)
26/20-pin 300 mil plastic SOJ (SOJ26/20-P-300-1.27) (Product : MSM514256C/CL-xxJS)
20-pin 400 mil plastic ZIP (ZIP20-P-400-1.27) (Product : MSM514256C/CL-xxZS)
xx indicates speed rank.
Microchips will be shipped in anti static tubes or boxes/trays depending on the packaging of the chip.
All Components are Handled in Compliance with ESD Static Quality Control Standards.
Please email if you have any questions.