From 2ef7327b4b858a6924b12c90a645cf281b35c923 Mon Sep 17 00:00:00 2001 From: Christopher RYU Date: Fri, 10 Mar 2023 06:40:10 +0900 Subject: [PATCH] CMOS logic for the bus transceiver appears to have issues with ROM decode. --- README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/README.md b/README.md index 90bec37..f11c8da 100644 --- a/README.md +++ b/README.md @@ -24,7 +24,7 @@ with what made the layout easier. ## Parts List -* A 74HCT245 octal bus transceiver (U1) +* A 74LS245 octal bus transceiver (non-TTL appears to have issues with the ROM address decode logic) (U1) * A 28C256 EEPROM (U2) * A 1.8432 MHz 5V oscillator (U3) * A 22V10 GAL (any speed or variety should work) (U4)