Seagate ST3300655LW LC 80-pin single-ended SE I/O connector pin assignments, Active LED OUT 4

Table 19: LC 80-pin single-ended (SE) I/O connector pin assignments [11]

Note. A minus sign preceding a signal name indicates that signal is active low.

	Connector
Signal	contact	Signal	Contact
name [1]	number [3]	number [3]	name[1]
12 V CHARGE	1	41	12 V GND
12 V	2	42	12 V GND
12 V	3	43	12 V GND
12 V	4	44	MATED 1 [12]
NC [10]	5	45	NC [10]
NC [10]	6	46	DIFFSNS [8]
–DB11	7	47	GND
–DB10	8	48	GND
–DB9	9	49	GND
–DB8	10	50	GND
–I/O	11	51	GND
–REQ	12	52	GND
–C/D	13	53	GND
–SEL	14	54	GND
–MSG	15	55	GND
–RST	16	56	GND
–ACK	17	57	GND
–BSY	18	58	GND
–ATN	19	59	GND
–DBP	20	60	GND
–DB7	21	61	GND
–DB6	22	62	GND
–DB5	23	63	GND
–DB4	24	64	GND
–DB3	25	65	GND
–DB2	26	66	GND
–DB1	27	67	GND
–DB0	28	68	GND
–DP1	29	69	GND
–DB15	30	70	GND
–DB14	31	71	GND
–DB13	32	72	GND
–DB12	33	73	GND
+5 V	34	74	MATED 2
+5 V	35	75	5 V GND
+5 V	36	76	5 V GND
NC [10]	37	77	ACTIVE LED OUT [4] [9]
RMT-START [5] [9] [12]	38	78	DLYD-START [6] [9] [12]
SCSI ID (0) [7] [9] [12]	39	79	SCSI ID (1) [7] [9] [12]
SCSI ID (2) [7] [9] [12]	40	80	SCSI ID (3) [7] [9] [12]

Notes []: See page following Table 20.

66 Cheetah 15K.5 SCSI Product Manual, Rev. J