NEO-244

Package	QFP64R
Manufacturer
First use	1992 ?
Used on	SLOT4F

Just a bunch of buffers.

Only (?) used on second revision 4-slot MVS systems.

Pinout

Generic pinout. Select lines are missing.

File:Neo-244 pinout.png

OpenOffice Draw file: File:Neo-244.odg

SLOT4F @ A1

Current buffers for 68k address lines.

• 6: A1 slot 1 & 2
• 7: A1 slot 3 & 4
• 8: A2 slot 1 & 2
• 9: A2 slot 3 & 4
• 11: A3 slot 1 & 2
• 12: A3 slot 3 & 4
• 13: A4 slot 1 & 2
• 14: A4 slot 3 & 4
• 22: A5 slot 1 & 2
• 23: A5 slot 3 & 4
• 24: A6 slot 1 & 2
• 27: A6 slot 3 & 4
• 28: A7 slot 1 & 2
• 29: A7 slot 3 & 4
• 30: A8 slot 1 & 2
• 31: A8 slot 3 & 4
• 38: A9 slot 1 & 2
• 39: A9 slot 3 & 4
• 40: A10 slot 1 & 2
• 41: A10 slot 3 & 4
• 43: A11 slot 1 & 2
• 44: A11 slot 3 & 4
• 45: A12 slot 1 & 2
• 46: A12 slot 3 & 4
• 54: A13 slot 1 & 2
• 55: A13 slot 3 & 4
• 56: A14 slot 1 & 2
• 59: A14 slot 3 & 4
• 60: A15 slot 1 & 2
• 61: A15 slot 3 & 4
• 62: A16 slot 1 & 2
• 63: A16 slot 3 & 4

SLOT4F @ A2

Current buffers for control lines.

• 4: ROMOE
• 5: ROMOEU
• 16: ROMOEL
• 17: RW
• 19: AS
• 20: PORTOEU
• 32: PORTOEL
• 33: PORTWEU
• 36: PORTWEL
• 37: PORTADRS

SLOT4F @ A2

Current buffers for control lines.

• 60: A18 slot 1 & 2
• 62: A19 slot 1 & 2