BUY CY7C199-10VC https://www.utsource.net/itm/p/448411.html
RSS Series - Econoline Unregulated DC-DC Converters; Input Voltage Vdc: 05V; Output Voltage Vdc: 24V; Power: 1W; 1kVDC and 3kVDC Isolation Options; Approved for Medical Applications; Suitable for Automated Assembly; 8, 10 and 12 pin Pinning Style Options; Optional Continuous Short Circuit Protected; Efficiency to 85%
Description: 32K x 8 Static RAM Feature: - Fast Access Time: 10/12/15/20/25/35/45/55/70/85/100/120/150ns - Low Power Consumption: Active Current: 70mA (max) - High Reliability: Endurance: 100K Cycles (min) - Low Voltage Operation: VCC = 4.5V to 5.5V - Single 5V Power Supply - TTL Compatible Inputs and Outputs - Fully Static Operation - Automatic Power Down when deselected Application: - Automotive - Industrial - Telecommunications - Consumer - Computer (For reference only)