identify Holtek chipsets

Holtek Microelectronics Inc [PCI vendor ID 12C3]
Holtek Taiwan
Holtek [PCI vendor ID 9412]

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HT27C512
CT27C512-70
 
       
         
Video
HT 27C512-12 BIOS chip

Network
[0058] HT80232 PCI Ethernet NIC
[5598] HT80229 PCI Ethernet NIC
[6565] 6565 (PCI vendor ID 9412)

Drive controller
HT6560A IDE controller VLB 1port (PIO 4)
HT6560B IDE controller VLB 2ports (PIO 4)

HT44xx 4bit microcontroller
HT45xx 4bit microcontroller
HT46xx 8bit microcontroller
HT47xx 8bit microcontroller
HT48xx 8bit microcontroller
HT49xx 8bit microcontroller