As far as its memory type goes, it falls into the Volatile category. You can get memory ics in a Tube case. The case is embedded in 52-LCC (J-Lead). There is 18Kb 2K x 9 of memory on the chip. As with most mainstream devices, this one uses SRAM-format memory. Suitable for use in a wide range of demanding applications, this device offers an extended operating temperature range of 0°C~70°C TA. A voltage of 4.5V~5.5V can be supplied to memory ics. As far as the mounting type is concerned, Surface Mount is recommended. A device's base part number, IDT70121, is often used in order to identify similar components.
70121S25J Features
Package / Case: 52-LCC (J-Lead)
70121S25J Applications
There are a lot of Renesas Electronics America Inc. 70121S25J Memory applications.