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ICM7555 Datasheet(PDF) 20 Page - NXP Semiconductors |
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ICM7555 Datasheet(HTML) 20 Page - NXP Semiconductors |
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20 / 22 page  ICM7555_2 © NXP B.V. 2009. All rights reserved. Product data sheet Rev. 02 — 3 August 2009 20 of 22 NXP Semiconductors ICM7555 General purpose CMOS timer 16. Revision history Table 10. Revision history Document ID Release date Data sheet status Change notice Supersedes ICM7555_2 20090803 Product data sheet - ICM7555_1 Modifications: • The format of this data sheet has been redesigned to comply with the new identity guidelines of NXP Semiconductors. • Legal texts have been adapted to the new company name where appropriate. • Provided separate pinning diagrams for SO8 and DIP8 packages (Figure 2 and Figure 3, respectively). • Added Table 2 “Pin description”. • Table 4 “Limiting values”: – Symbols VTRIG, VCV, VTH, VRST are replaced with VI (specific pin names are now noted under Conditions column). – Symbol/parameter “PDMAX, maximum power dissipation” replaced with “P, power dissipation” (only maximum values given). – Symbol/parameter “TSTG, storage temperature range” replaced with “Tstg, storage temperature”. – Symbol changed from “TSOLD” to “Tsp, solder point temperature” • Table 5 “Characteristics”: – Symbols ∆f/f, ∆f/∆V, ∆f/∆T, have been added for Astable mode timing. – Symbols VTRIG, VCV, VTH, VRST are replaced with VI (specific pin names are now noted under Conditions column). – Symbols ITRIG, ITH, IRST are replaced with II (specific pin names are now noted under Conditions column). – Symbol/parameter “VDIS, discharge output voltage” changed to “Vo, output voltage” (specific pin name is now noted under Conditions column). – Symbol/parameter “tR, rise time of output” changed to “tr(o), output rise time”. – Symbol/parameter “tF, fall time of output” changed to “tf(o), output fall time”. – Symbol “FMAX” changed to “fosc, oscillator frequency”. • Section 11.4 “Astable operation”: changed symbol for duty cycle from “D” to “ δ”. • Added Section 12 “Package outline”. • Added soldering information. • Added Section 15 “Abbreviations”. ICM7555_1 19940831 Product specification ECN 853-1192 13721 dated 1994 Aug 31 - |
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