TNT5002-AQF24

Overview

The NI TNT5002-AQF24 is a single-chip IEEE 488.2 Talker/Listener ASIC designed for GPIB instrument interfaces. It integrates the circuitry of the TNT4882 and NAT9914/TI TMS9914A register sets with a 3.3 V PCI core, supporting both PCI bus-master and generic CPU interfaces. The device operates in four modes: PCI4882, GEN4882, PCI9914, and GEN9914. It supports data transfer rates exceeding 1.5 MB/s using IEEE 488.1 and up to 8 MB/s with HS488 protocol. The component is housed in a 144-pin plastic quad flat pack (QFP) surface-mount package.

Feature Summary

• Integrates complete TNT4882 and NAT9914/TI TMS9914A register sets for direct code portability
• Supports high-speed HS488 protocol with transfer rates up to 8 MB/s
• Features a 32-bit/33 MHz PCI bus master interface with built-in DMA controller
• Includes internal loop-back mode for in-system functional testing

Applications

• IEEE 488 instrument designs incorporating PCI bus architecture
• Single-chip PCI-to-GPIB interface solutions
• High-speed GPIB data transfer systems requiring HS488 support

Procurement Notes

Verify that the part number suffix 'F' indicates RoHS compliance and pure tin lead finish. Confirm the package type is 144-BQFP and ensure compatibility with 3.3 V PCI signaling requirements. Check for specific baking and solder reflow temperature constraints defined by JEDEC J-STD-033 and IPC/JEDEC J-STD-020C standards.

Selection Notes

Select this component when a unified solution for GPIB communication and PCI connectivity is required. It allows migration from legacy TNT4882 or NAT9914 designs without significant software changes. Ensure the design supports either the generic I/O interface or the PCI interface, as the MODE pin selection determines the active pinout configuration.

Part Context

The TNT5002-AQF24 is the RoHS-compliant variant of the TNT5002-AQ series. The standard version is identified as TNT5002-AQ24. Both variants share identical electrical and functional specifications, differing only in material composition and lead finish to meet environmental directives.

Replacement Considerations

Existing code can be directly ported from TNT4882, NAT9914, NEC µPD7210, and TI TMS9914A devices due to compatible register sets.