IDT72142

The IDT72132/72142 are high-speed, low-power serial-toparallel FIFOs. These FIFOs are ideally suited to serial communications applications, tape/disk controllers, and local area networks (LANs). The IDT72132/72142 can be configured with the IDTs parallel-to-serial FIFOs (IDT72131/72141) for bidirectional serial data buffering.

The FIFO has a serial input port and a 9-bit parallel output port. Wider and deeper serial-to-parallel data buffers can be built using multiple IDT72132/72142 chips. IDTs unique Flexshift serial expansion logic (SIX, NW) makes width expansion possible with no additional components. These FIFOs will expand to a variety of word widths including 8, 9, 16,and 32 bits. The IDT72132/142 can also be directly connected for depth expansion.

Five flags are provided to monitor the FIFO. The full and empty flags prevent any FIFO data overflow or underflow conditions. The Almost-Full (7/8), Half-Full, and Almost Empty (1/8) flags signal memory utilization within the FIFO.

The IDT72132/72142 is fabricated using IDTs high-speed submicron CMOS technology.