View icl7660 datasheet:

SCOPE: SWITCHED-CAPACITOR VOLTAGE CONVERTER Device Type Generic Number SMD Number 01 ICL7660AM(x)/883B 5962-3870702 Case Outline(s). The case outlines shall be designated in Mil-Std-1835 and as follows: Outline Letter Mil-Std-1835 Case Outline Package Code SMD MAXIM GC TV MACY1-X8 8 LEAD CAN TO99 PA JA GDIP1-T8 or CDIP2-T8 8 LEAD CERDIP J8 Absolute Maximum Ratings Supply Voltage (V+ to GND, or GND to VOUT) .............................................................. 10.5V Input Voltage on N.C. Boost, LV, OSC 1/............................................ -0.3V?VIN?(V+ +0.3V) LV Input Current 1/.......................................................................................................... 20µA Output Short-Circuit Duration (V+?5.5V) ............................