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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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ISO7421 датащи(PDF) 14 Page - Texas Instruments |
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ISO7421 датащи(HTML) 14 Page - Texas Instruments |
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14 / 20 page  ISO7420, ISO7420M ISO7421, ISO7421M SLLS984D – JUNE 2009 – REVISED JULY 2010 www.ti.com REVISION HISTORY Changes from Original (June 2009) to Revision A Page • Added devices ISO7420 and ISO7420M to the data sheet .................................................................................................. 1 • Added the ICC EQUATIONS section ................................................................................................................................... 11 Changes from Revision A (December 2009) to Revision B Page • Switching Characteristics Table, Added Note (2) - Typical specifications are measured at ideal conditions of 25°C. Max or Min specifications are measured at worst case conditions for VCC and temperature. .............................................. 4 Changes from Revision B (February 2010) to Revision C Page • Added devices ISO7420F and ISO7420FM to the data sheet ............................................................................................. 1 • Added The suffix M indicates wide temperature range (–55°C to 125°C) and the suffix F indicates output-low option in fail-safe condition. All other devices without the F suffix default to output-high in fail-safe state. .................................... 1 • Changed the Function Table Output values for PU (Open) From: H To: H/L ...................................................................... 2 • Changed the Function Table Output values for PU (X) From: H To: H/L ............................................................................. 2 • Changed the Function Table Output values for PU (X) From: H/L To: H ............................................................................. 2 • Added Note (2) in the Function Table ................................................................................................................................... 2 • Added ISO7420F and ISO7420FM tothe Available Options Table ...................................................................................... 2 • Changed value from a max of 4 mA to a min of -4 mA ........................................................................................................ 3 • Changed value from a min of -4 mA to a max of 4 mA ........................................................................................................ 3 • Changed Electrical Characteristics Conditions ..................................................................................................................... 4 • Deleted Ci from the ELECTRICAL CHARACTERISTICS ..................................................................................................... 4 • Added (All inputs switching with square wave clock signal for dynamic ICC measurement) ............................................... 4 • Changed SWITCHING CHARACTERISTICS conditions ..................................................................................................... 4 • Changed PWD parameter from duration to width ................................................................................................................. 4 • Changed ELECTRICAL CHARACTERISTICS conditions .................................................................................................... 5 • Added High-level output voltage ISO7420 / 7421 (3.3-V side) test condition ...................................................................... 5 • Changed High-level output voltage min value ...................................................................................................................... 5 • Deleted CI specification ........................................................................................................................................................ 5 • Added (All inputs switching with square wave clock signal for dynamic ICC measurement) ............................................... 5 • Changed SWITCHING CHARACTERISTICS conditions ..................................................................................................... 5 • Changed Pulse duration distortion to Pulse width distortion ................................................................................................ 5 • Changed ELECTRICAL CHARACTERISTICS conditions .................................................................................................... 6 • Added High-level output voltage ISO7420 / 7421 (5-V side) test condition ......................................................................... 6 • Changed High-level output voltage min value ...................................................................................................................... 6 • Deleted CI specification ........................................................................................................................................................ 6 • Added (All inputs switching with square wave clock signal for dynamic ICC measurement) ............................................... 6 • Changed SWITCHING CHARACTERISTICS conditions ..................................................................................................... 6 • Changed Pulse duration distortion to Pulse width distortion ................................................................................................ 6 • Changed ELECTRICAL CHARACTERISTICS conditions .................................................................................................... 7 • Deleted CI specification ........................................................................................................................................................ 7 • Added (All inputs switching with square wave clock signal for dynamic ICC measurement) ............................................... 7 • Changed SWITCHING CHARACTERISTICS conditions ..................................................................................................... 7 • Changed Pulse duration distortion to Pulse width distortion ................................................................................................ 7 • Changed Note 1 Figure 1 ..................................................................................................................................................... 8 14 Submit Documentation Feedback Copyright © 2009–2010, Texas Instruments Incorporated Product Folder Link(s): ISO7420 ISO7420M ISO7421 ISO7421M |
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