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74ALVCH16501: 18-bit universal bus transceiver; 3-state (Based on PIP 74ALVCH16501)

The 74ALVCH16501 is an 18-bit transceiver featuring non-inverting 3-state bus compatible outputs in both send and receive directions. Data flow in each direction is controlled by output enable (OEAB and OEBA), latch enable (LEAB and LEBA), and clock (CPAB and CPBA) inputs. For A-to-B data flow, the device operates in the transparent mode when LEAB is HIGH. When LEAB is LOW, the A data is latched if CPAB is held at a HIGH or LOW logic level. If LEAB is LOW, the A-bus data is stored in the latch/flip-flop on the LOW-to HIGH transition of CPAB. When OEAB is HIGH, the outputs are active. When OEAB is LOW, the outputs are in the high-impedance state.

Data flow for B-to-A is similar to that of A-to-B but uses OEBA, LEBA and CPBA. The output enables are complimentary (OEAB is active HIGH, and OEBA is active LOW).

To ensure the high-impedance state during power-up or power-down, OEBA should be tied to VCC through a pull-up resistor and OEAB should be tied to GND through a pull-down resistor; the minimum value of the resistor is determined by the current-sinking/current-sourcing capability of the driver.

Active bus hold circuitry is provided to hold unused or floating data inputs at a valid logic level.

74ALVCH16501: Product Block Diagram

Outline 3d SOT371-1

Data Sheets (1)

Application Notes (5)

Brochures (3)

Selector Guides (2)

Package Information (2)

Packing (1)

Supporting Information (2)

IBIS Model

• alvch16501 IBIS model (REV 1.0) ibs ALVCH16501 4/7/2013

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
74ALVCH16501DL		SOT371-1	SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	74ALVCH16501DL,118 (9352 638 82118)	ALVCH16501	74ALVCH16501DL		week 15, 2005	123.8	3.87	2.58E8	1	2
				Bulk Pack	Active	74ALVCH16501DL,112 (9352 638 82112)	ALVCH16501	74ALVCH16501DL		week 15, 2005	123.8	3.87	2.58E8	1	2
74ALVCH16501DGG		SOT364-1	SSOP-TSSOP-VSO-WAVE	Tube in Drypack	Active	74ALVCH16501DGGS (9352 625 43512)	ALVCH16501	74ALVCH16501DGG		Always Pb-free	123.8	3.87	2.58E8	1	1
				Reel 13" Q1/T1 in Drypack	Active	74ALVCH16501DGGY (9352 625 43518)	ALVCH16501	74ALVCH16501DGG		Always Pb-free	123.8	3.87	2.58E8	1	1
				Reel 13" Q1/T1	Discontinued	74ALVCH16501DGG,11 (9352 625 43118)	ALVCH16501	74ALVCH16501DGG		week 2, 2006	123.8	3.87	2.58E8	1	1