器件名称: WCFS1008V1C-JC12
功能描述: 128K x 8 Static RAM
文件大小: 178.14KB 共8页
简 介:S1008V1C
WCFS1008V1C
128K x 8 Static RAM
Features
High speed — tAA = 12ns CMOS for optimum speed/power Center power/ground pinout Automatic power-down when deselected Easy memory expansion with CE and OE options Writing to the device is accomplished by taking Chip Enable (CE) and Write Enable (WE) inputs LOW. 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 (CE) and Output Enable (OE) LOW while forcing Write Enable (WE) 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 (CE HIGH), the outputs are disabled (OE HIGH), or during a write operation (CE LOW, and WE LOW). The WCFS1008V1C is available in standard 400-mil-wide package.
Functional Description
The WCFS1008V1C 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 (CE), an active LOW Output Enable (OE), and three-state drivers. This device has an automatic power-down feature that significantly reduces power consumption when deselected.
Logic Block Diagram
Pin Configurations
SOJ Top View
A0 A1 A2 A3 CE I/O0 I/O1 VCC V SS I/O2 I/O3 WE A4 A5 A6 A7 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 ……
