diff --git a/README.md b/README.md
index f11c8da..44568ad 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ with what made the layout easier.
 ## Parts List
 
 * A 74LS245 octal bus transceiver (non-TTL appears to have issues with the ROM address decode logic) (U1)
-* A 28C256 EEPROM (U2)
+* A 28C256 EEPROM (28-pin JEDEC EPROMs such as the 27128 also work) (U2)
 * A 1.8432 MHz 5V oscillator (U3)
 * A 22V10 GAL (any speed or variety should work) (U4)
 * A W65C51N ACIA (U5)