IC number:	MSM514221
IC function:	256k×4 Field Memory

Component documentation

IC number	Manufacturer	Documentation
MSM514221	Oki	Not available

Component versions

IC number	Package	CBM part number	CBM part description
MSM514221RS	16-pin DIP	390530-01	MSM514221RS-6 (OKI)

Positions

Device	Positions	Package
A3000	U470, U471, U472	DIP
A3000T	U470, U471, U472	DIP
A2320	U3, U4, U5	DIP

Pinout

Pin	Type	Name
1	Input	WE
2	Input	RSTW
3	Input	SWCK
4..7	Input	DIN0..DIN3
8	Power	VSS
9..12	Output	DOUT3..DOUT0
13	Input	SRCK
14	Input	RSTR
15	Input	RE
16	Power	VCC