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SC16C752B датащи(PDF) 35 Page - NXP Semiconductors |
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SC16C752B датащи(HTML) 35 Page - NXP Semiconductors |
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35 / 47 page ![]() Philips Semiconductors SC16C752B 5 V, 3.3 V and 2.5 V dual UART, 5 Mbit/s (max.), with 64-byte FIFOs Product data Rev. 03 — 14 December 2004 35 of 47 9397 750 14443 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. [1] Applies to external clock; crystal oscillator max 24 MHz. 11.1 Timing diagrams tp1, tp2 clock cycle period 10 - 6 - ns tp3 clock speed [1] - 48 - 80 MHz t(RESET) RESET pulse width 200 - 200 - ns tsu1 address set-up time 0 - 0 - ns tsu2 data set-up time 16 - 16 - ns tsu3 set-up time from IOW or IOR assertion to XTAL1 clock LOW-to-HIGH transition 20 - 20 - ns tw1 IOR strobe width 77 - 30 - ns tw2 IOW strobe width 30 - 30 - ns Table 26: AC electrical characteristics…continued Tamb = −40 °C to +85 °C; VCC = 2.5 V, 3.3 V ± 10% or 5 V ± 10%, unless specified otherwise. Symbol Parameter Conditions 2.5 V 3.3 V and 5 V Unit Min Max Min Max Fig 14. General read timing. DATA ACTIVE ACTIVE VALID ADDRESS 002aaa235 tsu1 th4 td1 tw1 td2 td3 td4 A0–A2 CSA, CSB IOR D0–D7 th1 |
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