57.36 SMC Electrical Specifications

Figure 57-51. SMC Timings - NCS Controlled Read and Write
Figure 57-52. SMC Timings - NRD Controlled Read and New Controlled Write
Table 57-49. SMC Electrical Specifications
AC CHARACTERISTICSStandard Operating Conditions: VDDIO=VDDIN 2.5V to 3.6V (unless otherwise stated)

Operating temperature:

-40°C ≤ TA ≤ +85°C for Industrial

Param. No.SymbolCharacteristicsMin.TypMax.UnitsConditions
SMC Read Signals - NRD Controlled (READ_MODE = 1)
SMC_1BNRDSET1Data Setup before NRD High11.558nsNO HOLD Settings (NRD_HOLD = 0)
SMC_2ANRDHOLD1Data Hold after NRD High0ns
SMC_3BNRDSET2Data Setup before NRD High10.627nsHOLD Settings (NRD_HOLD ≠ 0)
SMC_4ANRDHOLD2Data Hold after NRD High0ns
SMC_5ANRDVALA0–A22 Valid before NRD High(NRD_SETUP + NRD_PULSE) × tCPMCK - 2.739nsHOLD or NO HOLD Settings (NRD_HOLD ≠ 0, NRD_HOLD = 0)

Refer to note 2 for tCPMCK

SMC_6NCSBNRDNCS low before NRD High(NRD_SETUP + NRD_PULSE - NCS_RD_SETUP) × tCPMCK - 1.478nsRefer to note 2 for tCPMCK
SMC_7NRDPULWIDTHNRD Pulse WidthNRD_PULSE × tCPMCK - 0.003nsRefer to note 2 for tCPMCK
SMC Read Signals - NCS Controlled (READ_MODE = 0)
SMC_8BNCSSET1Data Setup before NCS High21.37nsNO HOLD Settings (NCS_RD_HOLD = 0)
SMC_9ANCSHOLD1Data Hold after NCS High0ns
SMC_10BNCSSET2Data Setup before NCS High11.05nsHOLD Settings (NCS_RD_HOLD ≠ 0)
SMC_11ANCSHOLD2Data Hold after NCS High0ns
SMC_12BNCSVALA0–A22 valid before NCS High(NCS_RD_SETUP + NCS_RD_PULSE) × tCPMCK - 3.638nsHOLD or NO HOLD Settings (NCS_RD_HOLD ≠ 0, NCS_RD_HOLD = 0)

Refer to note 2 for tCPMCK

SMC_13NRDBNCSNRD low before NCS High(NCS_RD_SETUP + NCS_RD_PULSE - NRD_SETUP) × tCPMCK - 3.311nsRefer to note 2 for tCPMCK
SMC_14NCSPULWIDTHNCS Pulse WidthNCS_RD_PULSE × tCPMCK - 0.126nsRefer to note 2 for tCPMCK
SMC Write Signals - NWE Controlled (WRITE_MODE = 1)
SMC_15NWEDOVData Out Valid before NWE HighNWE_PULSE × tCPMCK - 2.767nsHOLD or NO HOLD Settings (NWE_HOLD ≠ 0, NWE_HOLD = 0)

Refer to note 2 for tCPMCK

SMC_16NWEPULWIDTHNWE Pulse WidthNWE_PULSE × tCPMCK - 0.051nsRefer to note 2 for tCPMCK
SMC_17ANWVALA0–A22 valid before NWE lowNWE_SETUP × tCPMCK - 2.459nsRefer to note 2 for tCPMCK
SMC_18NCSLOWNCS low before NWE high(NWE_SETUP - NCS_RD_SETUP + NWE_PULSE) × tCPMCK - 1.266nsRefer to note 2 for tCPMCK
SMC_19NWEDONWE High to Data Out, NBS0/A0, NBS1, NBS2/A1, NBS3, A2-A25NWE_HOLD × tCPMCK - 3.073nsHOLD Settings (NWE_HOLD ≠ 0)

Refer to note 2 for tCPMCK

SMC_20NWNCNWE High to NCS Inactive(1)(NWE_HOLD - NCS_WR_HOLD) × tCPMCK - 2.427nsRefer to note 2 for tCPMCK
SMC_21NWDO_NHNWE High to Data Out NBS0/A0, NBS1, NBS2/A1, NBS3, A2-A25, NCS change(1)2.085nsNO HOLD Settings (NWE_HOLD = 0)
SMC Write NCS Controlled (WRITE_MODE = 0)
SMC_22NCSDOVData Out Valid before NCS HighNCS_WR_PULSE × tCPMCK - 3.478nsRefer to note 2 for tCPMCK
SMC_23NSCPULWIDTHNCS Pulse WidthNCS_WR_PULSE × tCPMCK - 0.126nsRefer to note 2 for tCPMCK
SMC_24ANCWVALA0–A22 valid before NCS lowNCS_WR_SETUP × tCPMCK - 3.820nsRefer to note 2 for tCPMCK
SMC_25NWENCNWE low before NCS high(NCS_WR_SETUP - NWE_SETUP + NCS_PULSE) × tCPMCK - 3.820nsRefer to note 2 for tCPMCK
SMC_26NCSDONCS High to Data Out, A0–A25, changeNCS_WR_HOLD × tCPMCK - 2.188nsRefer to note 2 for tCPMCK
SMC_27NCSNWENCS High to NWE Inactive(NCS_WR_HOLD - NWE_HOLD) × tCPMCK - 1.596nsRefer to note 2 for tCPMCK
Note:
  1. Hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “NCS_WR_HOLD length” or “NWE_HOLD length.”
  2. tCPMCK is MCK period.