spice model for 40106 and DAC 7541

[sofatra]

HI,

I have to simulate an electronic circuit with Altium.
But I can not find the spice model of triger schimtt nand gat 40106 and DAC 7541
I have a model of 40106 but it does not work.

* CD40106B CMOS Hex Schmitt Triggers
*
* The CMOS Intergrated Circuits Databook, 1983, RCA Solid State
* atl 10/3/89 Update interface and model names
*
.subckt CD40106B A G
+ optional: VDD=$G_CD4000_VDD VSS=$G_CD4000_VSS
+ params: MNTYMXDLY=0 IO_LEVEL=0
UG inv VDD VSS
+ A G
+ D_CD40106B IO_4000B_ST MNTYMXDLY={MNTYMXDLY} IO_LEVEL={IO_LEVEL}
.ends
*
.model D_CD40106B ugate (
+ tplhty=140ns tplhmx=280ns
+ tphlty=140ns tphlmx=280ns
+ )
*$

I need help!

Tanks.;-)