README: Add alternatives for ADM693

diff --git a/README.md b/README.md
index cb10153..639217c 100644 (file)
--- a/README.md
+++ b/README.md
@@ -144,7 +144,7 @@ Integrated Circuit | U2        | Z80 CTC, CMOS, 28 pin DIP - Z84C30xxPEG     | 1
 Integrated Circuit | U3        | Z80 SIO/0, CMOS, 28 pin DIP - Z84C40xxPEG   | 1        | Mouser [692-Z84C4010PEG](https://www.mouser.com/ProductDetail/692-Z84C4010PEG)
 Integrated Circuit | U4        | 512 KiB SRAM, 32 pin DIP - AS6C4008         | 1        | Mouser [913-AS6C4008-55PCN](https://www.mouser.com/ProductDetail/913-AS6C4008-55PCN)
 Integrated Circuit | U5        | 512 KiB Flash ROM, 32 pin DIP - SST39SF040  | 1        | Mouser [804-39SF0407CPHE](https://www.mouser.com/ProductDetail/804-39SF0407CPHE)
-Integrated Circuit | U6        | Microprocessor Supervisory Circuit - MAX693 | 1        | Mouser [584-ADM693ANZ](https://www.mouser.com/ProductDetail/584-ADM693ANZ)
+Integrated Circuit | U6        | Microprocessor Supervisory Circuit - MAX693 | 1        | Mouser [584-ADM693ANZ](https://www.mouser.com/ProductDetail/584-ADM693ANZ); Possible alternatives: MAX693, LTC693, ADM691, MAX691, LTC691, ADM695, MAX695, LTC965, LTC1235
 Integrated Circuit | U7, U8    | Dual RS-232 Driver/Receiver - MAX232A       | 2        | Mouser [595-TRS232IN](https://www.mouser.com/ProductDetail/595-TRS232IN)
 Integrated Circuit | U9        | Simple Programmable Logic Device - ATF16V8B | 1        | Mouser [556-AF16V8B15PU](https://www.mouser.com/ProductDetail/556-AF16V8B15PU)
 Integrated Circuit | U10, U11  | 4-by-4 Register File - 74HCT670             | 2        | Mouser [595-CD74HC670E](https://www.mouser.com/ProductDetail/595-CD74HC670E)