37C65 used in Commodore and Amiga equipment

Component documentation
IC number	Manufacturer	Documentation
WD37C65		Not available
FDC37C65	SMC (now SMSC)	Not available

Component versions
Component	Package	CBM part number	CBM part description
WD37C65	40-Pin DIP	390304-01	IC, WD37C65
WD37C65A	40-Pin DIP	390304-02	IC, WD37C65A
WD37C65B, FDC37C65B	40-Pin DIP	390304-03	37C65B FDC
WD37C65C-PL	40-Pin DIP
WD37C65	44-Pin PLCC	390304-04	WD37C65 FCC Controller PLCC Pkg
WD37C65C-JM	44-Pin PLCC

Positions
Device	Position	Component	Package
A2286 sandwich board	U71	WD37C65, FDC37C65B, WD37C65C	DIP
A2386	U501	WD37C65C	PLCC
PC30-III	U1001	WD37C65, WD37C65A, WD37C65B	DIP
PC40-III	U1001	WD37C65, WD37C65A, WD37C65B, FDC37C65B	DIP
PC60-III	U127	WD37C65B	DIP
SL286/SL386SX main board	U305	WD37C65	PLCC

Pinout DIP package
Pin	Type	Name	Description
1	Input	RD_	READ
2	Input	WR_	WRITE
3	Input	CS_	CHIP SELECT
4	Input	A0	ADDRESS LINE
5	Input	DACK_	DMA ACKNOWLEDGE
6	Input	TC	TERMINAL COUNT
7..14	I/O	DB0..DB7	DATABUS 0 .. DATABUS 7
15	Output	DMA	DIRECT MEMORY ACCESS
16	Output	IRQ	INTERRUPT
17	Input	LDOR_	LOAD OPERATIONS REGISTER
18	Input	LDCR_	LOAD CONTROL REGISTER
19	Input	RST	RESET
20	Input	RDD_	READ DISK DATA
21	Input	CLK2	CLOCK2
22	Input	DRV	DRIVE TYPE
23	Input	CLK1	CLOCK1
24	Input	PCVAL	PRECOMPENSATION VALUE
25	Output	HS_	HEAD SELECT
26	Output	WE_	WRITE ENABLE
27	Output	WD_	WRITE DATA
28	Output	DIRC_	DIRECTION
29	Output	STEP_	STEP PULSE
30	Output	DS1_	DRIVE SELECT 1
31	Power	VSS	GROUND
32	Output	DS2_	DRIVE SELECT 2
33	Output	MO1_,DS3_	MOTOR ON 1, DRIVE SELECT 3
34	Output	MO2_,DS4_	MOTOR ON 2, DRIVE SELECT 4
35	Output	HDL_	HEAD LOADED
36	Output	RWC_,RPM_	REDUCED WRITE CURRENT, REVOLUTIONS PER MINUTE
37	Input	WP_	WRITE PROTECTED
38	Input	TR00_	TRACK 00
39	Input	IDX_	INDEX
40	Power	VCC	+5VDC

Pinout PLCC package
Pin	Type	Name	Description
1	Input	RD_	READ
2	Input	WR_	WRITE
3	Input	CS_	CHIP SELECT
4	Input	A0	ADDRESS LINE
5	Input	DACK_	DMA ACKNOWLEDGE
6	Input	TC	TERMINAL COUNT
7..14	I/O	DB0..DB7	DATABUS 0 .. DATABUS 7
15	Output	DMA	DIRECT MEMORY ACCESS
16	Output	IRQ	INTERRUPT
17	N/C	NC
18	Input	LDOR_	LOAD OPERATIONS REGISTER
19	Input	LDCR_	LOAD CONTROL REGISTER
20	Input	RST	RESET
21	Input	RDD_	READ DISK DATA
22	Output	XT2_	XTAL2
23	Input	XT2	XTAL2
24	Input	DRV	DRIVE TYPE
25	Output	XT1_	XTAL1
26	Input	XT1	XTAL1
27	Input	PCVAL	PRECOMPENSATION VALUE
28	Output	HS_	HEAD SELECT
29	Output	WE_	WRITE ENABLE
30	Output	WD_	WRITE DATA
31	Output	DIRC_	DIRECTION
32	Output	STEP_	STEP PULSE
33	Output	DS1_	DRIVE SELECT 1
34	Power	VSS	GROUND
35	Output	DS2_	DRIVE SELECT 2
36	Output	MO1_,DS3_	MOTOR ON 1, DRIVE SELECT 3
37	Output	MO2_,DS4_	MOTOR ON 2, DRIVE SELECT 4
38	Output	HDL_	HEAD LOADED
39	Output	RWC_,RPM_	REDUCED WRITE CURRENT, REVOLUTIONS PER MINUTE
40	N/C	NC
41	Input	WP_	WRITE PROTECTED
42	Input	TR00_	TRACK 00
43	Input	IDX_	INDEX
44	Power	VCC	+5VDC