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M38D54F7XXXFP Datasheet(PDF) 11 Page - Renesas Technology Corp |
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M38D54F7XXXFP Datasheet(HTML) 11 Page - Renesas Technology Corp |
11 / 142 page Rev.3.04 May 20, 2008 Page 11 of 134 REJ03B0158-0304 38D5 Group NOTE: 1. For detailed specifications, confirm the descriptions in the Datasheet. Notes on Differences between QzROM and Flash Mem- ory Versions (1) The memory map, the writing modes and programming circuits vary because of the differences in their internal memories. (2) The oscillation parameters of XIN-XOUT and XCIN-XCOUT may vary. (3) The QzROM version and the flash memory version MCUs differ in their manufacturing processes, built-in ROM, and layout patterns. Because of these differences, characteristic values, operation margins, A/D conversion accuracy, noise immunity, and noise radiation may vary within the specified range of electrical characteristics. (4) When switching from the flash memory version to the QzROM version, implement system evaluations equivalent to those implemented in the flash memory version. (5) The both operations except the electrical characteristics are same at the emulator (emulator MCU board: M38D59T- RLFS). Table 6 Differences between QzROM and flash memory versions QzROM version Flash memory version Oscillation circuit at reset and at returning from stop mode Main clock XIN or on-chip oscillator selectable by OSCSEL pin On-chip oscillator Termination of OSCEL/CNVSS pin OSCSEL = “H” OSCSEL = “L” CNVSS = “L” Main clock oscillation at reset and at returning from stop mode Oscillation on Stop Stop On-chip oscillator oscillation at reset and at returning from stop mode Stop Oscillation on Oscillation on System clock φ oscillation at reset and at returning from stop mode f(XIN)/8 f(OCO)/32 f(OCO)/32 Mounting of main clock oscillation circuit Required Optional Optional On-chip oscillator oscillation in low speed-mode Stop Stop by setting the on-chip oscillator stop bit because it is not stopped. Writing “1” to on-chip oscillator stop bit in on-chip oscillator mode On-chip oscillator is stopped On-chip oscillator is not stopped Reset input “L” pulse width 2 µs or more 2 ms or more Absolute maximum rating: OSCSEL/CNVSS pin −0.3 to 8.0 −0.3 to VCC + 0.3 Minimum operating power source voltage 1.8 V 2.7 V A/D converter minimum operating power source voltage 2.0 V 2.7 V |
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