Support/peripheral/other chips starting from 40

 
4001   256 x 8 mask programmable ROM
Package:16-pin DIP
Manufacturers: Intel
Intel C4001, P4001
 
4002   320-bit RAM and 4-bit output port
Package:16-pin DIP
Manufacturers: Intel
Intel C4002-1, C4002-2, D4002-1, D4002-2, P4002-1, P4002-2
 
4003   10-bit shift register/output expander
Package:16-pin DIP
Manufacturers: Intel
Intel C4003, P4003
 
4008   Memory interface chip
Comment:Interfaces 4004 or 4040 microprocessor to PROM, ROM and RAM chips used for program memory.
Package:24-pin DIP
Manufacturers: Intel
Intel C4008, D4008, P4008
 
4009   I/O interface chip
Package:24-pin DIP
Manufacturers: Intel
Intel C4009, D4009, P4009
 
SY4050   4096x1 dynamic RAM
Comment:No suffix, "-1" and "-2" parts have 300, 250 and 200 ns access time respectively.
Package:18-pin DIP
Manufacturers: Synertek
Synertek SYP4050, SYC4050, SYP4050-1, SYC4050-1, SYP4050-2, SYC4050-2
 
(c) Copyright 2003 Gennadiy Shvets