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MMA5124KW Datasheet(PDF) 8 Page - Freescale Semiconductor, Inc |
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MMA5124KW Datasheet(HTML) 8 Page - Freescale Semiconductor, Inc |
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8 / 55 page  Sensors 8 Freescale Semiconductor, Inc. MMA51xxKW 2.6 Dynamic Electrical Characteristics - PSI5 VL ≤ (VCC - VSS) ≤ VH, TL ≤ TA ≤ TH, ΔT ≤ 25 K/min, unless otherwise specified # Characteristic Symbol Min Typ Max Units 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 Initialization Timing Phase 1 Phase 2 (10-Bit, Synchronous Mode, k = 4) Phase 2 (8-Bit, Synchronous Mode, k = 8) Phase 2 (10-Bit, Asynchronous Mode 0, k = 8) Phase 2 (8-Bit, Asynchronous Mode 0, k = 16) Phase 3 (10-Bit, Synchronous Mode, ST_RPT = 0) Phase 3 (8-Bit, Synchronous Mode, ST_RPT = 0) Phase 3 (10-Bit, Asynchronous Mode 0, ST_RPT = 0) Phase 3 (8-Bit, Asynchronous Mode 0, ST_RPT = 0) Offset Cancellation Stage 1 Operating Time Offset Cancellation Stage 2 Operating Time Self-Test Stage 1 Operating Time Self-Test Stage 2 Operating Time Self-Test Stage 3 Operating Time Self-Test Repetitions Programming Mode Entry Window tPSI5_INIT1 tPSI5_INIT2_10s tPSI5_INIT2_8s tPSI5_INIT2_10a0 tPSI5_INIT2_8a0 tPSI5_INIT3_10s tPSI5_INIT3_8s tPSI5_INIT3_10a0 tPSI5_INIT3_8a0 tOC1 tOC2 tST1 tST2 tST3 ST_RPT tPME ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 0 ⎯ 532000 / fOSC 256 * tS-S 288 * tS-S 512 * tASYNC 576 * tASYNC 2 * tS-S 2 * tS-S 19 * tASYNC 2 * tASYNC 320000 / fOSC 280000 / fOSC 128000 / fOSC 128000 / fOSC 128000 / fOSC ⎯ 300000 / fOSC ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 5 ⎯ s s s s s s s s s s s s s s s (7) (7) (7) (7) (7) (7, 12) (7, 12) (7, 12) (7, 12) (7) (7) (7) (7) (7) (7, 12) (7) 112 113 114 115 116 117 118 119 120 121 122 123 Synchronization Pulse (Figure 5, Figure 28 and Figure 32) Reset to first sync pulse (Program Mode Entry) Reset to first sync pulse (Normal Mode) Sync Pulse Period Sync Pulse Width Sync Pulse Reference LPF time constant Sync Pulse Reference Discharge Start Time Sync Pulse Reference Discharge Activation Time Sync Pulse Detection Disable Time (BLANKTIME = 0) Analog Delay of Sync Pulse Detection Sync Pulse Pulldown Function Delay Time Sync Pulse Pulldown Function Activate Time Sync Pulse Detection Jitter tRS_PM tRS tS-S tSYNC tSYNC_LPF tSYNC_LPF_RST_ST tSYNC_LPF_RST tSYNC_OFF_500 tA_SYNC_DLY tPD_DLY tPD_ON tSYNC_JIT 58 tPSI5_INIT1 tSYNC_OFF 9 120 ⎯ ⎯ ⎯ 50 ⎯ ⎯ 0 ⎯ ⎯ ⎯ ⎯ 280 66 / fOSC 616 / fOSC 1810 / fOSC ⎯ 74 / fOSC 64 / fOSC ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 600 ⎯ ⎯ 2 / fOSC ms s μs μs μs s s s ns s s s (7) (7) (7) (7) (9) (7) (7) (7) (9) (7) (7) (7) 124 125 Data Transmission Single Bit Time (PSI5 Low Bit Rate) Data Transmission Single Bit Time (PSI5 High Bit Rate) * * tBIT_LOW tBIT_HI 7.6000 4.9875 8.0000 5.2500 8.4000 5.5125 μs μs (7) (7) 126 127 Modulation Current (20% to 80% of IMOD - IIDLE) Rise Time Fall Time tRISE tFALL 324 324 463 463 602 602 ns ns (3) (3) 128 129 Position of bit transition (PSI5 Low Baud Rate) Position of bit transition (PSI5 High Baud Rate) * * tBittrans_LowBaud tBittrans_HighBaud 49 47 50 ⎯ 51 53 % % (7) (7) 130 Asynchronous Response Time * tASYNC ⎯ 912 / fOSC ⎯ s(7) 131 132 133 134 135 136 137 138 Time Slots Minimum Programmed Time Slot (TIMESLOTx = 0x001) Maximum Programmed Time Slot (TIMESLOTx = 0x3FF) Default Time Slot (TIMESLOTx = 0x000) Time Plot Resolution Sync Pulse to Daisy Chain Default Time Slot 1 Sync Pulse to Daisy Chain Default Time Slot 2 Sync Pulse to Daisy Chain Default Time Slot 3 Sync Pulse to Daisy Chain Programming Time Slot * tTIMESLOTx_MIN tTIMESLOTx_MAX tTIMESLOT_DFLT tTIMESLOTx_RES tTIMESLOT_DC1 tTIMESLOT_DC2 tTIMESLOT_DC3 tTIMESLOT_DCP ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ 2 / fOSC 2046 / fOSC 186 / fOSC 2 / fOSC 186 / fOSC 768 / fOSC 1400 / fOSC 186 / fOSC ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ ⎯ s s s s/LSB s s s s (7, 9) (3, 7) (3, 7) (7) (7) (7) (7) (7) 139 140 Data Interpolation Latency (Figure 35, Figure 36) Data Setup Time - Synchronous Mode (Figure 36) Data Setup Time - Double Sample Rate Mode (Figure 37) Data Setup Time - 16 Bit Resolution Mode (Figure 39) tLAT_INTERP tDATASETUP_synch tDATASETUP_double tDATASETUP_16 64 / fOSC 48 / fOSC 48 / fOSC 48 / fOSC ⎯ ⎯ ⎯ ⎯ 65 / fOSC 56 / fOSC 60 / fOSC 60 / fOSC s s s s (7) (7) (7) (7) 141 142 143 144 145 Programming Mode Timing Programming Mode Sync Pulse Period Programming Mode Command Timeout OTP Write Command to VCC = VPP OTP Write CMD Response to OTP programming start Time to program one OTP bit tS-S_PM_L tPM_TIMEOUT tPROG_HOLD tPROG_DELAY tPROG_BIT 495 ⎯ ⎯ ⎯ 512 500 4 * tS-S_PM ⎯ ⎯ ⎯ 505 ⎯ 20 40 ⎯ μs μs μs ms μs (7) (7) (7) (7) (7) |
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