The CY7C109BN/CY7C1009BN is a high-performance CMOS static RAM organized as 131,072 words by 8 bits. Easy memory expansion is provided by an active LOW Chip Enable (CE1), an active HIGH Chip Enable (CE2), an active LOW Output Enable (OE), and three-state drivers. Writing to the device is accomplished by taking Chip Enable One (CE1) and Write Enable (WE) inputs LOW and Chip Enable Two (CE2) input 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 A16).
Reading from the device is accomplished by taking Chip Enable One (CE1) and Output Enable (OE) LOW while forcing Write Enable (WE) and Chip Enable Two (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 CE 2 LOW), the outputs are disabled (OE HIGH), or during a write operation (CE1 LOW, CE2 HIGH, and WE LOW). The CY7C109BN is available in standard 400-mil-wide SOJ and 32-pin TSOP type I packages. The CY7C1009BN is available in a 300-mil-wide SOJ package. The CY7C1009BN and CY7C109BN are functionally equivalent in all other respects.
• High speed
— tAA = 12 ns
• Low active power
— 495 mW (max. 12 ns)
• Low CMOS standby power
— 55 mW (max.) 4 mW
• 2.0V Data Retention
• Automatic power-down when deselected
• TTL-compatible inputs and outputs
• Easy memory expansion with CE1, CE2, and OE options
Cypress Semiconductor - Cypress targets innovative markets growing faster than the overall semiconductor industry, including key segments of the automotive, industrial, home automation and appliances, medical products and consumer electronics businesses. With the help of Digi-Key Electronics, we supply customers with market-leading solutions based on our MCUs, wireless SoCs, memories, analog ICs and USB controllers. Our world-class wireless technology gives us an unparalleled position in the fast-growing Internet of Things, a business that cuts across our conventional markets and gives us a stake in exciting, next-generation segments such as connected and autonomous cars.