Epson MFJ-1278B manual Do not use 74HCT14 for these ICs

MFJ-1278B MULTI-MODE		APPENDIX I PARTS LIST
MFJ P/N	Descrpition		Component ID
312-2512	27C1001, CMOS EPROM,		U23
	100 NS OR BETTER,
	(ERASABLE TYPE ONLY,
	DO NOT USE FUJUTSE TYPE)
312-2081	27C64, CMOS EPROM,		U6
	200 NS OR BETTER,
	PROGRAM WITH "STATE" 1.09
	(ONE-TIME PROM, OK TO USE)
312-0075	43256LP-10, 32K STATIC RAM,		U24, U25
	100 NS OR BETTER
312-0067	Z084404PSC, 4 MHZ,		U21
	Z80A SIO/0 DUAL SERIAL PORT,
	ZILOG, TOSHIBA OR EQUAL
312-0044	Z0840004PSC, CMOS,		U22
	4 MHZ, Z80A CPU, ZILOG,
	TOSHIBA OR EQUAL
310-0044	4040B, CMOS DIVIDER		U1
310-34066	74HC4066P, QUAD CMOS SWITCH		U13
310-4004	74HCT04, HEX INVERTER		U10
310-3014	74HC14P, HEX SCHMITT		U7, U9, U14
	INVERTER
	(Do not use 74HCT14 for these ICs)
310-3107	74HC107N, DUAL J-K		U11
	FLIP FLOP
310-4374	74HCT374, OCTAL LATCH		U5, U27, U28, U39, U40*
310-4373	74HCT373, OCTAL		U38
	TRANSPARENT LATCH

310-4393 74HCT393N, DUAL BINARY U4