The JTAG Technologies JT3707/TSI DataBlaster is a boundary-scan controller for IEEE 1149.1 testing and in-system programming (ISP). It delivers sustained test clock speeds to 40 MHz with programmable TCK adjustment from 500 Hz to maximum, enabling flexible performance tuning for complex, high-density PCBs. The triple-serial interface (TSI) provides USB 2.0 (480 Mbit/s), USB 1.1 (12 Mbit/s), Ethernet, and FireWire (IEEE-1394-1995 and IEEE-1394A-2000) connectivity at 100, 200, and 400 Mbit/s operation, supporting integration across diverse computing platforms.
## Technical Specifications
**Core Capability:** IEEE 1149.1 boundary-scan testing and in-system flash programming
**Test Clock (TCK):** 40 MHz sustained; programmable from 500 Hz to maximum; automatic speed matching for optimal chain performance
**Connectivity Interfaces:**
• USB 2.0 at 480 Mbit/s and USB 1.1 at 12 Mbit/s
• Ethernet
• FireWire (IEEE-1394-1995 and IEEE-1394A-2000) at 100, 200, and 400 Mbit/s
**TAP Architecture:** Four synchronized test access ports via included JT 2147 QuadPOD system; each TAP pod (JT 2149) features a 20-way TAP connector and eight-pin connector for four static I/O lines
**TAP Voltage Range:** 1.0 V to 3.6 V, individually programmable per TAP
**Flash Memory Buffer:** Expandable up to 128 Mbits
**QuadPOD System (JT 2147):** Bench-top signal conditioning module comprising JT 2148 transceiver and four removable JT 2149 TAP pods, connected via 50-way shielded cable assembly
## Key Features
• Scalable architecture upgradeable to JT3717 with JT 2108 ETT (Enhanced Throughput Technology) module
• Optimized binary file format (BSX) for high-speed execution
• Optional SCIL measurement modules and JT 2149/DAF (Digital/Analog/Frequency) modules for expanded capability
• Full compatibility with existing JTAG Technologies test and ISP files
## Typical Applications
Board testing, CPLD programming, fast in-system flash memory programming, vector-intensive manufacturing test, and engineering environments with small-to-large data block requirements
## Compatibility & Integration
Fully compatible with existing JTAG Technologies test and ISP file libraries. Low-voltage TAP system supports modern embedded and FPGA device ecosystems.
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