From ee021f8cfe1761a2be9f7b633e4d6348a9ff4aa8 Mon Sep 17 00:00:00 2001
From: Michal Hanus <mikehanus@protonmail.com>
Date: Sat, 27 Dec 2025 15:10:30 +0100
Subject: init

---
 hc/readme.txt | 87 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 hc/readme.txt

(limited to 'hc/readme.txt')

diff --git a/hc/readme.txt b/hc/readme.txt
new file mode 100644
index 0000000..e948680
--- /dev/null
+++ b/hc/readme.txt
@@ -0,0 +1,87 @@
+================================================================================
+                   NXP SEMICONDUCTORS HCMOS SPICE MODELS
+================================================================================
+
+This is version 1.2 for the NXP Semiconductors HCMOS SPICE models.  These 
+models are in Berkeley SPICE format. To run simulations, read the instructions 
+provided in the top level program, hct.cir.  Also refer to the SPICE data book 
+for information on individual part types and package modeling.  The following 
+files should be included to perform simulations on the HCMOS family: hct.cir, 
+hc_tnomi.cir,hc_tfast.cir, hc_tslow.cir and the package libraries: dhvqfn.s,
+dip.s, so.s, ssop.s and tssop.s.
+
+The following shows the revision history for the HCMOS models:
+
+Verison 1.2
+-----------
+Date 30/03/2011 RRV
+Rewritten netlist to add package options.
+Available packages: DIP, SO, SSOP, TSSOP and DHVQFN
+
+Version 1.12
+------------
+Date 27/10/2010 RRV
+Added HC(T)240/253
+
+Version 1.11
+------------
+Date 06/07/2010 RRV
+Added HC(T)02/08/86
+
+Version 1.10
+------------
+Date 10/12/2009 RRV
+Removed HCT05 (not an active part type)
+
+Version 1.09
+------------
+Date 09/23/2009 RRV
+.SUBSCKT SWITCH3 renamed to SWITCH3N in hc_tnomi.cir
+
+Version 1.08
+------------
+Date 09/08/2009 RRV
+Added models for HC(T)4020/4060
+
+Version 1.07
+------------
+Date 03/27/2009 RRV
+Added models for HC(T)05
+
+Version 1.06
+------------
+Date 02/20/2006 RRV
+Added models for HC(T)366 and HC(T)368
+
+Version 1.05
+------------
+Date 10/27/2005 RRV
+Updated HC/T04 and HCU04 models.
+Commented out R1 for test load. Datasheet specifies only Cload.
+
+Version 1.04 
+------------
+Date 09/22/2003 RM
+Added an inverter between the enable input module and the enable input of the 
+analog switch in hc4066 and hct4066, in order to realize an active high enable.
+
+Version 1.03 
+------------
+Date 01/14/2003 RM
+Corrected the level converter subcircuit LLCN/LLCF/LLCS, used in 
+SWI1, SWI3, SWI1T, SWI3T. The gate connection of MP1 is now connected
+to net 4 (it was connected to net 2, which was not correct).
+
+Version 1.02
+------------
+Date 10/3/95
+Deleted UNBUFF circuit in subcircuit files for HCU04 model.  All subcircuit
+files were changed.
+
+Version 1.01
+------------
+Added HCU04 model.  All files were changed.
+
+Version 1.0
+-----------
+Original release.
-- 
cgit v1.2.3