Features: • Operates at 66 MHz
• Uses 64K x 18, 128K x 18, or 256K x 18 high performance synchronous SRAMs
• 168-position Angled DIMM from Amp p/n 179508-2
• 3.3V inputs/data outputsPinoutSpecificationsStorage Temperature ................................................... 55°C to +125°C
Ambient Temperature with Power Applied ........................ 0°C to +70°C
3.3V Supply Voltage to Ground Potential ............................. 0.5V to +4.5V
DC Voltage Applied to Outputs in High Z State .................... 0.5V to +4.6V
DC Input Voltage .................................................................. 0.5V to +4.6V
Output Current into Outputs (LOW)..................................................... 20 mADescriptionThe CYM9260, CYM9261, CYM9262, and the CYM9263 are high-performance synchronous memory modules organized as 64K(9260), 128K(9261), 256K(9262), or 512K(9263) by 72 bits. The CYM9260, CYM9261, CYM9262, and the CYM9263 are constructed from either 128K x 18(9260,9261B,9262A) or 256K x 18 (9263) SRAMs in plastic surface mount packages on an epoxy laminate board with pins. The CYM9260, CYM9261, CYM9262, and the CYM9263 are designed to be incorporated into large memory arrays.
The CYM9260, CYM9261, CYM9262, and the CYM9263 are configured as either one or two banks, where each bank has separate chip select and output enable controls. Separate clocks are provided for every pair of SRAMs's.
Multiple ground pins and on-board decoupling capacitors of CYM9260, CYM9261, CYM9262, and the CYM9263 ensure high performance with maximum noise immunity.
All components on the cache modules are surface mounted on a multi-layer epoxy laminate (FR-4) substrate. The contact pins are plated with 150 micro-inches of nickel covered by 30 micro-inches of gold flash.