TL16PC564BLVPZ

Overview

The TL16PC564BLVPZ is a PCMCIA Universal Asynchronous Receiver Transmitter (UART) interface designed for Personal Computer Memory Card International Association (PCMCIA) subsystems. It integrates a TL16C550 ACE core with PCMCIA interface logic, providing serial-to-parallel conversion between a modem or DSP and the PCMCIA parallel data port. The device features a dual-port random-access memory (DPRAM) serving as a 256-byte Card Information Structure (CIS) and eight 8-byte Card Configuration Registers (CCR). It supports selectable Intel or Zilog microcontroller interfaces, fully programmable serial characteristics including baud-rate generation, and an extended 64-byte FIFO mode.

Feature Summary

• Integrates a TL16C550 ACE core with expanded 64-byte transmit and receive FIFOs in extended mode.
• Provides a dual-port RAM-based attribute memory containing a 256-byte CIS and eight CCRs accessible by both host CPU and subsystem.
• Supports subsystem-selectable serial-bypass mode allowing direct parallel access to FIFOs.
• Features a fully prioritized interrupt system with independently controlled transmit, receive, line status, and data set interrupts.

Applications

• PCMCIA universal asynchronous receiver transmitter (UART) subsystem interfaces
• Serial-to-parallel conversion for modem coder-decoder/digital signal processor (CODEC/DSP) functions
• Personal Computer Memory Card International Association (PCMCIA) compliant communication cards

Procurement Notes

Verify the specific ordering suffix against the manufacturer's official documentation to confirm package type and temperature range. Ensure the component matches the required PCMCIA standard release version. Confirm that the pinout corresponds to the intended 100-pin Thin Quad Flatpack (PZ) or MicroStar BGA (GGM) configuration before integration into the design.

Selection Notes

Select this component when a complete PCMCIA UART solution is required, combining the ACE functionality with necessary interface logic. Consider the extended 64-byte FIFO mode if higher throughput is needed compared to the standard 16-byte configuration. Verify compatibility with the target subsystem's microcontroller architecture, specifically choosing between Intel or Zilog modes via the SELZ/I pin.

Part Context

The TL16PC564B/BLV series is designed to provide all functions necessary for a PCMCIA UART subsystem interface. It consists of a single TL16C550 ACE plus PCMCIA interface logic. The device adds or deletes standard asynchronous communication bits to the serial data stream and provides common I-Bus/Z-Bus microcontroller inputs for most Intel and Zilog subsystems.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.