Support/peripheral/other chips starting from 38

MK3801	Serial timer interrupt controller
Comment:	Full-duplex UART. 2 timers/counters and 2 binary delay timers. 8 I/O bidirectional lines. MK3801 is a 2.5 MHz part. MK3801-4 is a 4 MHz part. MK3801-6 is a 6 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3801N, MK3801-4, MK3801-6
MK3881	Parallel I/O controller
Comment:	2 bidirectional 8-bit ports. MK3881 is a 2.5 MHz part. MK3881-4 and MK3881-10 are 4 MHz parts.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3881N, MK3881P, MK3881N-4, MK3881P-4, MK3881P-10
MK3882	Counter timer circuit
Comment:	MK3882 is a 2.5 MHz part. MK3882-4 and MK3882-10 are 4 MHz parts.
Package:	28-pin DIP
Manufacturers:	Mostek
Mostek	MK3882N, MK3882P, MK3882N-4, MK3882-P4, MK3882P-10
MK3883	DMA controller
Comment:	MK3883 and MK3883-10 are 2.5 MHz parts. MK3883-4 is a 4 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3883N, MK3883P, MK3883N-10, MK3883P-10, MK3883N-4, MK3883P-4
MK3884	Serial I/O controller
Comment:	2 full-duplex channels. MK3884 and MK3884-10 are 2.5 MHz parts. MK3884-4 is a 4 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3884N, MK3884P, MK3884N-4, MK3884P-4, MK3884N-10, MK3884P-10
MK3884 SIO/9	Serial I/O controller
Comment:	1 full-duplex channel. MK3884 is a 2.5 MHz part. MK3884-4 is a 4 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3884N SIO/9 (MK3884NSIO/9), MK3884P SIO/9 (MK3884PSIO/9), MK3884N-4 SIO/9 (MK3884N-4SIO/9), MK3884P-4 SIO/9 (MK3884P-4SIO/9)
MK3885	Serial I/O controller
Comment:	2 full-duplex channels. MK3885 and MK3885-10 are 2.5 MHz parts. MK3885-4 is a 4 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3885N, MK3885P, MK3885N-4, MK3885P-4, MK3885N-10, MK3885P-10
MK3885 SIO/9	Serial I/O controller
Comment:	1 full-duplex channel. MK3885 is a 2.5 MHz part. MK3885-4 is a 4 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3885N SIO/9 (MK3885NSIO/9), MK3885P SIO/9 (MK3885PSIO/9), MK3885N-4 SIO/9 (MK3885N-4SIO/9), MK3885P-4 SIO/9 (MK3885P-4SIO/9)
MK3887	Serial I/O controller
Comment:	2 full-duplex channels. MK3887 and MK3884-10 are 2.5 MHz parts. MK3887-4 is a 4 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3887N, MK3887P, MK3887N-4, MK3887P-4, MK3887N-10, MK3887P-10
MK3887 SIO/9	Serial I/O controller
Comment:	1 full-duplex channel. MK3887 is a 2.5 MHz part. MK3887-4 is a 4 MHz part.
Package:	40-pin DIP
Manufacturers:	Mostek
Mostek	MK3887N SIO/9 (MK3887NSIO/9), MK3887P SIO/9 (MK3887PSIO/9), MK3887N-4 SIO/9 (MK3887N-4SIO/9), MK3887P-4 SIO/9 (MK3887P-4SIO/9)