74LVT16646ADL,512 Просмотр технического описания (PDF) - NXP Semiconductors.

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74LVT16646ADL,512

3.3 V 16-bit bus transceiver; 3-state

NXP Semiconductors. 

74LVT16646A

3.3 V 16-bit bus transceiver; 3-state

Rev. 03 — 12 January 2005

Product data sheet

1. General description

The 74LVT16646A is a high-performance BiCMOS product designed for VCC operation at

3.3 V. This device is a 16-bit transceiver featuring non-inverting 3-state bus compatible

outputs in both send and receive directions. The control function implementation

minimizes external timing requirements. The device features an output enable (OE) input

for easy cascading and a direction (DIR) input for direction control.

Data on bus A or bus B is clocked into the registers on the LOW-to-HIGH transition of the

appropriate clock (CPAB or CPBA). The select control (SAB and SBA) inputs can

multiplex stored and real-time (transparent mode data).

2. Features

s 16-bit universal bus interface

s 3-state buffers

s Output capability: from +64 mA to −32 mA

s TTL input and output switching levels

s Input and output interface capability to systems at 5 V supply

s Bus-hold data inputs eliminate the need for external pull-up resistors to hold unused

inputs

s Live insertion and extraction permitted

s No bus-current loading when output is tied to 5 V bus

s Power-up reset

s Power-up 3-state

s Latch-up protection exceeds 500 mA per JESD78

s ESD protection:

x MIL STD 883 Method 3 015: exceeds 2000 V

x Machine model: exceeds 200 V

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