CY62138CV30

CY62138CV30 Manufacturer

CY62138CV30 Description

CY62138CV30 Categories

CY62138CV30 Datasheet (PDF)

CY62138CV30 Price & Availability

CY62138CV30 Features

• Very high speed: 55 ns and 70 ns
• Voltage range:
• CY62138CV25: 2.2V?2.7V
• CY62138CV30: 2.7V?3.3V
• CY62138CV33: 3.0V?3.6V
• CY62138CV: 2.7V?3.6V
• Pin-compatible with CY62138V
• Ultra low active power
• Typical active current: 1.5 mA @ f = 1 MHz
• Typical active current: 5.5 mA @ f = f_max (70-ns speed)
• Low standby power
• Easy memory expansion with CE₁, CE₂, and OE features
• Automatic power-down when deselected
• CMOS for optimum speed/power
• Packages offered in a 36-ball FBGA

CY62138CV30 Description

The CY62138CV25/30/33 and CY62138CV are high-performance CMOS static RAMs organized as 256K words by eight bits. This device features advanced circuit design to provide ultra-low active current. This is ideal for providing More Battery Life? (MoBL^®) in portable applications. The device also has an automatic power-down feature that significantly reduces power consumption by 80% when addresses are not toggling. The device can be put into standby mode reducing power consumption by more than 99% when deselected (/CE₁ HIGH or CE₂ LOW).

Writing to the device is accomplished by taking Chip Enable 1 (/CE₁) and Write Enable (/WE) inputs LOW and Chip Enable 2 (CE₂) HIGH. 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 A₁₇).

Reading from the device is accomplished by taking Chip Enable 1 (/CE₁) and Output Enable (/OE) LOW while forcing Write Enable (/WE) and Chip Enable 2 (CE₂) 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 (/CE₁ HIGH or CE₂ LOW), the outputs are disabled (/OE HIGH), or during a write operation (/CE₁ LOW, CE₂ HIGH and /WE LOW). See the truth table at the back of this data sheet for a complete description of read and write modes.

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