78M6618 Maxim, 78M6618 Datasheet
78M6618
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78M6618 Summary of contents
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... A Maxim Integrated Products Brand DS_6618_005 DESCRIPTION The Teridian 78M6618 is a highly integrated IC for independent monitoring and measurement eight single-phase AC outlets. With multiple host interface options, an integrated LCD driver, and configurable I/Os, the device is ideal for metered power distribution units (PDUs) and rack enclosures for the data center, as well as intelligent power strips and subpanels in the grid-friendly digital home ...
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... Data Sheet 1 Hardware Functional Description...................................................................................................... 5 1.1 Hardware Overview ..................................................................................................................... 5 1.2 Device Reset ................................................................................................................................ 7 1.3 Power Management ..................................................................................................................... 7 1.3.1 Voltage Regulator ............................................................................................................ 7 1.3.2 Power Fault Management ................................................................................................ 7 1.3.3 BROWNOUT .................................................................................................................... 7 1.3.4 SLEEP mode ................................................................................................................... 7 1.4 Analog Front End (AFE) ............................................................................................................... 7 1.4.1 Analog Current and Voltage Inputs ................................................................................. 8 1.5 Digital Computation Engine (CE) ................................................................................................. 8 1.6 80515 MPU Core ......................................................................................................................... 8 1.6.1 SFR .................................................................................................................................. 9 1.7 XRAM ........................................................................................................................................... 9 1.8 IORAM ......................................................................................................................................... 9 1.9 FLASH .......................................................................................................................................... 9 1.9.1 Program Security ............................................................................................................. 9 1 ...
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... QFN Package Outline ........................................................................................ 25 3.1.3 Recommended PCB Land Pattern for the QFN-68 Package ........................................ 26 4 Pin Descriptions ................................................................................................................................ 27 4.1 Power and Ground Pins ............................................................................................................. 27 4.2 Analog Pins ................................................................................................................................ 27 4.3 Digital Pins ................................................................................................................................. 28 5 I/O Equivalent Circuits ...................................................................................................................... 29 6 Ordering Information ........................................................................................................................ 30 7 Contact Information .......................................................................................................................... 30 8 Appendix A: Acronyms .................................................................................................................... 31 9 Revision History ................................................................................................................................ 32 Rev. 1.4 78M6618 Data Sheet 3 ...
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... Data Sheet Figures Figure 1: 78M6618 IC Functional Block Diagram ......................................................................................... 6 Figure 2: AFE Block Diagram ....................................................................................................................... 8 Figure 3: SPI Slave Port: Typical Read and Write Operations ................................................................... 12 Figure 4: SPI Slave Port (MISSION Mode) Timing ..................................................................................... 23 Figure 5: Pinout for QFN-68 Package ......................................................................................................... 24 Figure 6: QFN-68 Package Outline (Top, Bottom, and Side View) ............................................................ 25 Figure 7: PCB Land Pattern for QFN 68 Package ...
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... Various current sensor technologies are supported including Current Transformers (CT), Resistive Shunts and Rogowski coils sub-metering application, the 32-bit compute engine (CE) of the 78M6618 sequentially process the samples from the analog inputs on pins IA, IB, IC, ID, IE, IF, IG, IH, VA, VB and performs calculations to measure active energy (Wh) and reactive energy (VARh), as well as A measurement ...
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... XIN OSC (32.768kHz) XOUT RTC TEST TEST MODE RX UART TX OPT_RX / DIO1 OPTICAL OPT_TX / DIO2 MOD FAULTZ V1 POWER FAULT Figure 1: 78M6618 IC Functional Block Diagram 6 VREF V3P3A ∆Σ ADC CONVERTER VBIAS FIR RTM RPULSE CE VREF WPULSE XPULSE YPULSE CE_PROG 32 16 CE_DATA MCK ...
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... Power Management 1.3.1 Voltage Regulator The 78M6618 provides an on chip voltage regulator to create a 2.5V supply for the digital logic. This regulator can be run off of the V3P3SYS or VBAT inputs depending upon power availability. 1.3.2 Power Fault Management The 78M6618 includes both hardware and software controlled power fault management connected to a comparator to monitor system power fault conditions. When the output of the comparator falls (V1< ...
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... MPU Core The 78M6618 includes an 80515 MPU (8-bit, 8051-compatible) that processes most instructions in one clock cycle. The 80515 architecture eliminates redundant bus states and implements parallel execution of fetch and execution phases. Normally, a machine cycle is aligned with a memory fetch, therefore, most of the 1-byte instructions are performed in a single machine cycle (MPU clock cycle) ...
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... FLASH The 78M6618 includes 128 KB of on-chip Flash memory. For read/write access from the CPU, the flash is broken into four 32 KB banks that are managed by SFR settings. For erasing of the flash memory from the CPU the flash is segmented into individual 1024-byte pages and also controlled by SFR settings. See the 78M6618 Programmer’ ...
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... The device includes an on-chip temperature sensor for determining the temperature of the bandgap re- ference. The primary use of the temperature data is to determine the magnitude of compensation required to offset the thermal drift in the system. See the 78M6618 Programmer’s Reference Manual for more information regarding the use of the 78M6618 Temperature Sensor. ...
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... DS_6618_005 1.16 LCD Drivers The 78M6618 contains a total of 35 dedicated and multiplexed LCD drivers which are grouped as follows: • 11 dedicated LCD segment drivers. • 3 drivers multiplexed with the ICE interface (E_TCLK, E_RST, E_RXTX). • 1 driver multiplexed with auxiliary signal CKTEST (SEG19). • ...
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... Figure 4: SPI Slave Port: Typical Read and Write Operations Since the addresses are in 16-bit format, any type of XRAM data can be accessed: CE, MPU or IORAM but not SFRs or the 80515-internal register bank. See the 78M6618 Programmer’s Reference Manual for more information regarding the mapping and use of SPI functions. ...
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... DS_6618_005 1.20 UARTs The 78M6618 includes two UARTs (UART0 and UART1) that can be programmed to communicate with a variety of external devices. The UARTs are dedicated 2-wire serial interfaces, which can communicate at rates up to 38,400 bits/s. All UART transfers are programmable for parity enable, parity, 2 stop bits/1 stop bit and XON/XOFF options for variable communication baud rates from 300 to 38,400 bps. See the 78M6618 Programmer’ ...
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... Data Sheet 2 Electrical Specifications 2.1 Absolute Maximum Ratings Table 2 shows the absolute maximum ranges for the device. Stresses beyond Absolute Maximum Ratings may cause permanent damage to the device. These are stress ratings only and functional operation at these or any other conditions beyond those indicated under recommended operating ...
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... Load capacitor for crystal (depends on crystal specs and board parasitics). Condition Normal Operation Battery Backup No Battery Battery Backup: BRN and LCD modes SLEEP mode 78M6618 Data Sheet Value Unit ≥0.1 ±20% µF 0.1 ±20% µF ≥1.0 ±30% µF 0.1 ±20% µ ...
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... Data Sheet 2.4 Performance Specifications 2.4.1 Input Logic Levels Parameter a Digital high-level input voltage , V a Digital low-level input voltage , V Input pull-up current E_RXTX, E_RST, CKTEST Other digital inputs Input pull down current ICE_E RESET Other digital inputs a In battery powered modes, digital inputs should be below 0 above 2 minimize battery current. ...
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... On resistance – VBAT to V3P3D Rev. 1.4 Condition FIR_LEN=0 (L=138) FIR_LEN=1 (L=288) FIR_LEN=0 (L=186) FIR_LEN=1 (L=384) Condition <25°C over temperature <25°C over temperature Condition | ≤ V3P3D | ≤ V3P3D 78M6618 Data Sheet Min Typ Max Unit kΩ µV (-10%) -48.7 (+10%) µV -5.35 µV (-10%) -19.8 (+10%) µ ...
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... Data Sheet 2.4.7 2.5 V Voltage Regulator Table 11: 2.5 V Voltage Regulator Performance Specifications Parameter V2P5 V2P5 load regulation Voltage overhead V3P3-V2P5 PSSR ∆V2P5/∆V3P3 2.4.8 Low-Power Voltage Regulator Unless otherwise specified, V3P3SYS = V3P3A = 0. Table 12: Low-Power Voltage Regulator Performance Specifications Parameter V2P5 V2P5 load regulation VBAT voltage requirement PSRR Δ ...
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... SOURCE SINK Condition ) + 25º (L=138) FIR_LEN=0 (L=288) FIR_LEN=1 (L=186) FIR_LEN=0 FIR_LEN=0 (L=138) FIR_LEN=1 (L=288) FIR_LEN=0 (L=186 25° -40ºC to +85ºC 78M6618 Data Sheet Min Typ Max Unit -0.1 +0 kΩ Min Typ Max Unit 0.4 V 0.7 V ...
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... Data Sheet 2.4.14 VREF Table 18 shows the performance specifications for VREF. Unless otherwise specified, VREF_DIS = 0. Table 18: VREF Performance Specifications Parameter VREF output voltage, VREF(22) VREF chop step VREF power supply sensitivity ΔVREF / ΔV3P3A VREF input impedance VREF output impedance 2 VNOM definition ...
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... Vin=65 Hz, 64 kpts FFT, Blackman- Harris window CKCE = 5 MHz Vin = Vin = 65 Hz FIR_LEN=0 FIR_LEN=1 FIR_LEN=0 FIR_LEN=0 FIR_LEN=1 FIR_LEN=0 Vin=200 mV pk V3P3A=3.0 V, 3.6 V -10 78M6618 Data Sheet Typ Max Unit mV 250 peak 1 1 µV/V 10 -75 dB -90 dB kΩ 90 Ω ...
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... Data Sheet 2.5 Timing Specifications 2.5.1 Flash Memory Table 20: Flash Memory Timing Specifications Parameter Flash write cycles Flash data retention Flash data retention Flash byte write operations between page or mass erase operations Write Time per Byte Page Erase (1024 bytes) Mass Erase 2 ...
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... SPISCK PSDO MSB OUT PSDI MSB IN Figure 5: SPI Slave Port (MISSION Mode) Timing Rev. 1.4 Condition Ignore if PCLK is low when PCSZ falls. t SPIcyc t t SPIW SPIEV SPIW t SPIH 78M6618 Data Sheet Min Typ Max Unit SPILag t SPIDIS ...
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... Data Sheet 3 Packaging 3.1 68-Pin QFN Package 3.1.1 Pinout E_RST/SEG11 1 E_TCLK/SEG10 2 GNDD 3 SEG9/E_RXTX 4 OPT_TX/DIO2 5 TMUXOUT SEG3/PCLK 8 V3P3D 9 SEG19/CKTEST 10 V3P3SYS 11 SEG4/PSDO 12 SEG5/PCSZ 13 SEG37/DIO17 14 SEG38/DIO18 15 DIO3 16 COM0 17 24 Teridian 78M6618-IM Figure 6: Pinout for QFN-68 Package DS_6618_005 51 V3P3A 50 GNDA 49 RESET 48 V2P5 47 VBAT 46 RX SEG31/DIO11 ...
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... DS_6618_005 3.1.2 68-Pin QFN Package Outline 0.850 Figure 7: QFN-68 Package Outline (Top, Bottom, and Side View) NOTE: Controlling dimensions are in mm Pin length is nominally 0.4mm (min. 0.3 mm, max 0.4 mm). Rev. 1.4 78M6618 Data Sheet 25 ...
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... Data Sheet 3.1.3 Recommended PCB Land Pattern for the QFN-68 Package Figure 8: PCB Land Pattern for QFN 68 Package Table 25: Recommended PCB Land Pattern Dimensions Symbol Notes not place unmasked vias in the region denoted by dimension d. 2. Soldering of bottom internal pad is not required for proper operation. ...
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... XIN, and XOUT should be left unconnected. 1) Pin types Power Output Input, I/O = Input/Output The circuit number denotes the equivalent circuit, as specified under Rev. 1.4 Table 26: Power and Ground Pins Description Table 27: Analog Pins Description 78M6618 Data Sheet Section 5, I/O Equivalent Circuits. 27 ...
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... Data Sheet 4.3 Digital Pins Name Type Circuit COM1,COM0 O 5 DIO3 I/O 3,4 SEG0…SEG2 SEG7, SEG8 SEG12, SEG14…SEG18 Multi-use pins, configurable as either LCD SEG driver or DIO. SEG24/DIO4… I/O SEG31/DIO11, SEG33/DIO13… SEG39/DIO19, SEG63/DIO43 SEG3/PCLK I Multi-use pins, configurable as either LCD SEG driver or SPI PORT. ...
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... Pin Oscillator GNDD Oscillator Equivalent Circuit Type 8: Oscillator I/O 10 from V3P3SYS 40 from VBAT V3P3D Equivalent Circuit Type 13: V3P3D Figure 9: I/O Equivalent Circuits 78M6618 Data Sheet V3P3A from VREF internal Pin reference GNDA VREF Equivalent Circuit Type 9: VREF V3P3D from V2P5 internal Pin reference ...
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... QFN (Lead(Pb)- Free) 78M6618 78M6618 * Contact Maxim for more information on programmed part options. 7 Contact Information For more information about Maxim products or to check the availability of the 78M6618, contact technical support at www.maxim-ic.com/support. 30 Table 29: Ordering Information Flash Packaging Size 128 KB ...
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... American National Standards Institute CE Compute Engine DIO Digital I /O ICE In-Circuit Emulator IEC International Electrotechnical Commission MPU Microprocessor Unit (CPU) PLL Phase-Locked Loop RMS Root Mean Square SFR Special Function Register SOC System on Chip UART Universal Asynchronous Receiver/Transmitter Rev. 1.4 78M6618 Data Sheet 31 ...
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... Data Sheet 9 Revision History REVISION REVISION NUMBER DATE First publication. 1.0 5/6/2009 In Section 1.13, added text changes and Figure 3. In Section 2, Electrical Specifications, added Guaranteed 1.4 3/11 By Design information. In Section 7, added the new contact information. Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are implied ...