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P89LPC913 Datasheet(PDF) 54 Page - NXP Semiconductors |
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P89LPC913 Datasheet(HTML) 54 Page - NXP Semiconductors |
54 / 63 page Philips Semiconductors P89LPC912/913/914 8-bit microcontrollers with two-clock 80C51 core Product data Rev. 03 — 17 December 2004 54 of 63 9397 750 14468 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Table 15: AC characteristics (P89LPC912, P89LPC913) VDD = 3.0 V to 3.6 V, unless otherwise specified. Tamb = −40 °Cto+85 °C for industrial, unless otherwise specified.[1] Symbol Parameter Conditions Variable clock fosc =18MHz Unit Min Max Min Max fRCOSC internal RC oscillator frequency (nominal f = 7.3728 MHz) trimmed to ±1 % at Tamb =25 °C 7.189 7.557 7.189 7.557 MHz fWDOSC internal Watchdog oscillator frequency (nominal f = 400 kHz) 320 520 320 520 kHz Crystal oscillator fosc oscillator frequency [2] 0 18 - - MHz tCLCL clock cycle see Figure 29 55 - --ns fCLKP CLKLP active frequency 0 8 - - MHz Glitch filter glitch rejection, P1.5/RST pin - 50 - 50 ns signal acceptance, P1.5/RST pin 125 - 125 - ns glitch rejection, any pin except P1.5/RST - 15 - 15 ns signal acceptance, any pin except P1.5/RST 50 - 50 - ns External clock tCHCX HIGH time see Figure 29 22 tCLCL − tCLCX 22 - ns tCLCX LOW time see Figure 29 22 tCLCL − tCHCX 22 - ns tCLCH rise time see Figure 29 -5 - 5 ns tCHCL fall time see Figure 29 -5 - 5 ns SPI interface fSPI Operating frequency 3.0 MHz (Slave) 0 CCLK ⁄ 6 0 3 MHz 4.5 MHz (Master) - CCLK ⁄ 4 - 4.5 MHz tSPICYC Cycle time see Figure 24, 25, 26, 27 3.0 MHz (Slave) 6 ⁄CCLK - 333 - ns 4.5 MHz (Master) 4 ⁄CCLK - 222 - ns |
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