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74HC(T)173: Quad D-type flip-flop; positive-edge trigger; 3-state (Based on PIP 74HC_HCT173_CNV)

The 74HC/1 are high-speed Si-gate CMOS devices and are pin compatible with low power Schottky TTL (LSTTL). They are specified in compliance with JEDEC standard no. 7A.

The 74HC/HCT173 are 4-bit parallel load registers with clock enable control, 3-state buffered outputs (Q0 to Q3) and master reset (MR).

When the two data enable inputs (E 1 and E 2) are LOW, the data on the Dn inputs is loaded into the register synchronously with the LOW-to-HIGH clock (CP) transition. When one or both E n inputs are HIGH one set-up time prior to the LOW-to-HIGH clock transition, the register will retain the previous data. Data inputs and clock enable inputs are fully edge-triggered and must be stable only one set-up time prior to the LOW-to-HIGH clock transition.

The master reset input (MR) is an active HIGH asynchronous input. When MR is HIGH, all four flip-flops are reset (cleared) independently of any other input condition.

The 3-state output buffers are controlled by a 2-input NOR gate. When both output enable inputs (OE 1 and OE 2) are LOW, the data in the register is presented to the Qn outputs. When one or both OE n inputs are HIGH, the outputs are forced to a high impedance OFF-state. The 3-state output buffers are completely independent of the register operation; the OE n transition does not affect the clock and reset operations.

74HC_T_173: Product Block Diagram

Outline 3d SOT338-1

Data Sheets (1)

Application Notes (2)

Users Guides (1)

Selector Guides (2)

Package Information (3)

Packing (1)

Supporting Information (4)

Ordering Information

Package Information

Product ID	Package Description	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	RoHS / Pb Free / RHF	LeadFree Conversion Date	EFR	IFR(FIT)	MTBF(hour)	MSL	MSL LF
74HCT173DB		SOT338-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74HCT173DB,118 (9351 897 10118)	HCT173	74HCT173DB		week 12, 2005	84.9	6.62	1.51E8	1	1
				Bulk Pack	Active	74HCT173DB,112 (9351 897 10112)	HCT173	74HCT173DB		week 12, 2005	84.9	6.62	1.51E8	1	1
74HCT173D		SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1 CECC	Active	74HCT173D,653 (9337 150 40653)	74HCT173D	74HCT173D		week 30, 2004	84.9	6.62	1.51E8	1	1
				Bulk Pack, CECC	Active	74HCT173D,652 (9337 150 40652)	74HCT173D	74HCT173D		week 30, 2004	84.9	6.62	1.51E8	1	1
74HC173DB		SOT338-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74HC173DB,118 (9351 892 50118)	HC173	74HC173DB		week 12, 2005	84.9	6.62	1.51E8	1	1
				Bulk Pack	Active	74HC173DB,112 (9351 892 50112)	HC173	74HC173DB		week 12, 2005	84.9	6.62	1.51E8	1	1
74HC173PW		SOT403-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74HC173PW,118 (9351 895 50118)	HC173	74HC173PW		week 10, 2005	84.9	6.62	1.51E8	1	1
				Bulk Pack	Active	74HC173PW,112 (9351 895 50112)	HC173	74HC173PW		week 10, 2005	84.9	6.62	1.51E8	1	1
74HC173D		SOT109-1	SO-SOJ-REFLOW SO-SOJ-WAVE SO-SOJ-REFLOW SO-SOJ-WAVE	Reel 13" Q1/T1 CECC	Active	74HC173D,653 (9337 145 60653)	74HC173D	74HC173D		week 12, 2005	84.9	6.62	1.51E8	1	1
				Bulk Pack, CECC	Active	74HC173D,652 (9337 145 60652)	74HC173D	74HC173D		week 12, 2005	84.9	6.62	1.51E8	1	1