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1240: Difference between revisions
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image=Tektronix_1240_front_panel.jpeg| | image=Tektronix_1240_front_panel.jpeg| | ||
caption=Tektronix 1240| | caption=Tektronix 1240| | ||
introduced= | introduced=1983 | | ||
discontinued=(?) | | discontinued=(?) | | ||
summary=Modular Logic Analyzer | | summary=Modular Logic Analyzer | | ||
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==Specifications== | ==Specifications== | ||
The 1240/1241 provide up to 72 acquisition channels (one to four acquisition boards with 9 or 18 channels each) at acquisition speeds up to 100 MHz asynchronous or 50 MHz synchronous, 14 levels of triggering with conditional branching. | The 1240/1241 provide up to 72 acquisition channels (one to four acquisition boards with 9 or 18 channels each) at acquisition speeds up to 100 MHz asynchronous or 50 MHz synchronous, 14 levels of triggering with conditional branching. | ||
Exchangeable ROM cartridges allow for mnemonic disassembly and state analysis of most microprocessors of the time. | |||
==Internals== | ==Internals== | ||
The 1240 is built around an Intel 8088 as the control processor with 64K DRAM, and firmware in a bank of EPROMs. A separate I/O processor board is powered by a Z80A CPU. The display controller is built from individual TTL and ECL ICs. | |||
The power supply is a switch-mode supply that mainly generates 5 V at up to 45 A. It requires a minimum load of 11.6 A. Additionally it generates 3 V at up to 8 A with no minimum load and several other voltages that are derived from linear post regulators. | The power supply is a switch-mode supply that mainly generates 5 V at up to 45 A. It requires a minimum load of 11.6 A. Additionally it generates 3 V at up to 8 A with no minimum load and several other voltages that are derived from linear post regulators. | ||