74LVT16646A Datasheet, PDF (1/21 Pages) NXP Semiconductors – 3.3V ABT 16-bit bus transceiver 3-State

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 V_CC 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