STMicroelectronics AS-TQFP44

Overview

AS-TQFP44 from STMicroelectronics is a replacement socket adapter for the ST7-DVP3 real-time emulator system, designed to interface ST7 microcontrollers in 44-pin TQFP packages with the DVP3 Target Emulation Board via the 10-pin ICC cable. It supports in-circuit debugging and programming at 3.3 V or 5 V, with programmable clock up to 16 MHz, and enables physical replacement of the target MCU during emulation configuration.

For engineers reviewing the AS-TQFP44 datasheet, AS-TQFP44 pinout, AS-TQFP44 application, or AS-TQFP44 equivalent, this socket provides mechanical and electrical compatibility for ST7 devices including ST7FLITE0, ST7FLITE1, ST7FLITE2, ST7FLITE3, ST72F26x, and ST72F36x families - critical for reliable emulator-to-target board connection in development workflows.

Technical Context

The AS-TQFP44 is a passive zero-insertion-force (ZIF) socket used exclusively within the modular ST7-DVP3 emulator architecture. It mates with the 44-pin TQFP footprint of ST7 MCUs and connects to the Target Emulation Board through a standardized 10-pin ICC interface, preserving signal integrity for real-time trace, breakpoint, and trigger functions.

It operates across the full ST7 supply range (2.95–5.5 V), supports both 3.3 V and 5 V emulation modes, and maintains timing alignment for clock frequencies up to 16 MHz - enabling accurate cycle-accurate debugging without signal degradation or skew introduced by non-standard interconnects.

Key Specifications

Availability

AS-TQFP44 is available at Aetrix Electronics and suitable for ST7 microcontroller development, in-circuit debugging setups, and production-grade emulator validation requiring stable component supply and long-term socket reliability.

Supply support for AS-TQFP44 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

STMicroelectronics is a global semiconductor leader headquartered in Geneva, Switzerland, specializing in microcontrollers, power management, sensors, and automotive ICs.

The AS-TQFP44 belongs to the ST7-DVP3 emulator accessory product line, engineered specifically to enable low-cost, real-time in-circuit debugging and programming of ST7 8-bit microcontrollers in TQFP packaging.

FAQ

Is AS-TQFP44 compatible with ST7LITE series MCUs?

Yes - AS-TQFP44 supports ST7LITE0, ST7LITE1, ST7LITE2, and ST7LITE3 devices in 44-pin TQFP packages. Mechanical pinout and ICC signal mapping match STMicroelectronics' ST7-DVP3 User Manual requirements for TQFP-based emulation targets.

Does AS-TQFP44 require external power or logic-level translation?

No - AS-TQFP44 is a passive socket with no active circuitry. It draws no power and does not perform voltage translation; it routes ICC signals directly between the DVP3 Target Emulation Board and the ST7 MCU, maintaining native 3.3 V or 5 V logic levels.

Can AS-TQFP44 be used with ST72F364 or ST72F365 devices?

Yes - both ST72F364 and ST72F365 are offered in 44-pin TQFP packages and are explicitly supported in the ST7-DVP3 Probe User Guide as valid targets for AS-TQFP44-equipped emulation setups.

What is the maximum recommended insertion cycle count for AS-TQFP44?

STMicroelectronics specifies ≥10,000 mating cycles for the AS-TQFP44 socket under normal handling conditions. This rating ensures durability across repeated debug iterations in engineering labs and production validation environments.