74LVT16501A NRND

3.3 V LVT 18-bit universal bus transceiver; 3-state

The 74LVT16501A is a high-performance BiCMOS product designed for V_CC operation at 3.3 V. This device is an 18-bit universal 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-bus data is latched if CPAB is held at a HIGH or LOW 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).

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

Not recommended for new designs (NRND).

Features and benefits

18-bit bidirectional bus interface
3-state buffers
Output capability: +64 mA to -32 mA
TTL input and output switching levels
Input and output interface capability to systems at 5 V supply
Bus hold data inputs eliminate need for external pull-up resistors to hold unused inputs
Live insertion and extraction permitted
Power-up reset
Power-up 3-state
No bus current loading when output is tied to 5 V bus
Positive-edge triggered clock inputs
Latch-up protection:
- JESD78: exceeds 500 mA
ESD protection:
- MIL STD 883, method 3015: exceeds 2000 V
- Machine model: exceeds 200 V

Documentation (4)

File name	Title	Type	Date
74LVT16501A	3.3 V LVT 18-bit universal bus transceiver; 3-state	Data sheet	2006-05-18
lvt16501a	lvt16501a IBIS model	IBIS model	2013-04-07
Nexperia_Selection_guide_2023	Nexperia Selection Guide 2023	Selection guide	2023-05-10
lvt16	lvt16 Spice model	SPICE model	2013-05-06

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Models

File name	Title	Type	Date
lvt16501a	lvt16501a IBIS model	IBIS model	2013-04-07
lvt16	lvt16 Spice model	SPICE model	2013-05-06