# HG changeset patch # User Paul Boddie # Date 1425600790 -3600 # Node ID e30a75c4b469c13aaeb56f2b0486cb255d60957b # Parent ea009faf7e6712a651d1b694a9925a21bd696156 Added ByteDelight.com 4164 chips source. diff -r ea009faf7e67 -r e30a75c4b469 ULA.txt --- a/ULA.txt Thu Oct 23 23:44:13 2014 +0200 +++ b/ULA.txt Fri Mar 06 01:13:10 2015 +0100 @@ -154,7 +154,8 @@ Unicorn Electronics appears to offer 4164 RAM chips (as well as 6502 series CPUs such as the 6502, 6502A, 6502B and 65C02). These 4164 devices are available in 100ns (4164-100), 120ns (4164-120) and 150ns (4164-150) variants, -have 16 pins and address 65536 bits through a 1-bit wide channel. +have 16 pins and address 65536 bits through a 1-bit wide channel. Similarly, +ByteDelight.com sell 4164 devices primarily for the ZX Spectrum. The documentation for the Electron mentions 4164-15 RAM chips for IC4-7, and the Samsung-produced KM41464 series is apparently equivalent to the Texas @@ -197,6 +198,8 @@ http://www.datasheetarchive.com/dl/Datasheets-112/DSAP0051030.pdf See: Dynamic RAMS http://www.unicornelectronics.com/IC/DYNAMIC.html +See: New old stock 8x 4164 chips + http://www.bytedelight.com/?product=8x-4164-chips-new-old-stock See: KM4164B 64K x 1 Bit Dynamic RAM with Page Mode http://images.ihscontent.net/vipimages/VipMasterIC/IC/SAMS/SAMSD020/SAMSD020-45.pdf See: NTE2164 Integrated Circuit 65,536 X 1 Bit Dynamic Random Access Memory