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LPC2104FBD48 датащи(PDF) 34 Page - NXP Semiconductors |
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LPC2104FBD48 датащи(HTML) 34 Page - NXP Semiconductors |
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34 / 41 page ![]() LPC2104_2105_2106_7 © NXP B.V. 2008. All rights reserved. Product data sheet Rev. 07 — 20 June 2008 34 of 41 NXP Semiconductors LPC2104/2105/2106 Single-chip 32-bit microcontrollers 9. Dynamic characteristics [1] Parameters are valid over operating temperature range unless otherwise specified. [2] Bus capacitance Cb in pF, from 10 pF to 400 pF. Table 11. Dynamic characteristics Tamb = 0 °C to +70 °C for commercial applications, −40 °C to +85 °C for industrial applications; VDD(1V8), VDD(3V3) over specified ranges.[1] Symbol Parameter Conditions Min Typ Max Unit External clock fosc oscillator frequency supplied by an external oscillator (signal generator) 1 - 25 MHz external clock frequency supplied by an external crystal oscillator 1 - 25 MHz external clock frequency if on-chip PLL is used 10 - 25 MHz external clock frequency if on-chip bootloader is used for initial code download 10 - 25 MHz Tcy(clk) clock cycle time 20 - 1000 ns tCHCX clock HIGH time Tcy(clk) × 0.4 - - ns tCLCX clock LOW time Tcy(clk) × 0.4 - - ns tCLCH clock rise time - - 5 ns tCHCL clock fall time - - 5 ns Port pins (except P0.2 and P0.3) tr rise time - 10 - ns tf fall time - 10 - ns I2C-bus pins (P0.2 and P0.3) tf fall time VIH to VIL [2] 20 + 0.1 × Cb --ns |
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