Home  Back
Last update: 7 August 2004

IC number:6545-1, 6845, 46505
IC function:CRTC (CRT Controller)
Related components:8563, 8568, PVC4 (extended versions), PVGA, WD90C11 (VGA controllers), PVC2 (color add-on)
Component documentation
IC numberManufacturerDocumentation
6545-1MOS Technology / CSGNot available
MC6845MotorolaNot available
HD46505HitachiNot available

Component versions
IC numberPackageSpeed
6545-140-Pin DIP1 MHz
6545A-140-Pin DIP2 MHz
MC6845P40-Pin DIP1 MHz
MC68B45P40-Pin DIP2 MHz
HD4650540-Pin DIP

CBM part numbers
SpeedCBM part numberCBM part description
1 MHz901479-01CRT Controller
2 MHz901479-02IC 6545A-1 CRT-Controller

Positions
DevicePositionsPackageSpeed
PC-IU50DIP1 MHz
PET board assy 8032030UB13DIP1 MHz
PET board assy 8032080UB13DIP1 MHz
PET board assy 8032090UB13DIP1 MHz
CBM II lo-profileU7DIP2 MHz
CBM II hi-profileU10DIP2 MHz
PC-10 Monochrome video adapterU9DIP2 MHz

Pinout
PinTypeName
1PowerGND
2InputRES_
3InputLPEN
4..11 (6545)OutputCC0/MA0..CC7/MA7
12..17 (6545)OutputCR0/MA8..CR5/MA13
4..17 (not 6545)OutputMA0..MA13
18OutputDISPLAY ENABLE
19InputCURSOR
20PowerVCC
21InputCCLK
22InputR/W_
23InputØ2
24InputRS
25InputCS_
26..33I/ODB7..DB0
34..38OutputRA4..RA0
39OutputHSYNC
40OutputVSYNC

Copyright © 2004 Ronald van Dijk - All rights reserved