DS_6613_018
78M6613 Data Sheet
4.5 Timing Specifications............................................................................................................24
4.5.1 RAM and Flash Memory............................................................................................24
4.5.2 RESET......................................................................................................................24
4.5.3 Typical Performance Data.........................................................................................25
5
6
Packaging ....................................................................................................................................26
5.1 Pinout ...................................................................................................................................26
5.2 Package Outline (QFN 32)....................................................................................................27
5.3 Recommended PCB Land Pattern for the QFN-32 Package .................................................28
Pin Descriptions..........................................................................................................................29
6.1 Power/Ground Pins...............................................................................................................29
6.2 Analog Pins ..........................................................................................................................29
6.3 Digital Pins ...........................................................................................................................30
7
8
9
I/O Equivalent Circuits ................................................................................................................31
Ordering Information...................................................................................................................32
Contact Information ....................................................................................................................32
Revision History..................................................................................................................................33
Figures
Figure 1: IC Functional Block Diagram ....................................................................................................4
Figure 2: AFE Block Diagram ..................................................................................................................7
Figure 3: Connecting an External Load to DIO Pins............................................................................... 10
Figure 4: Voltage. Current, Momentary and Accumulated Energy.......................................................... 11
Figure 5: MPU/CE Data Flow ................................................................................................................ 12
Figure 6: MPU/CE Communication........................................................................................................ 13
Figure 7: Resistive Voltage Divider........................................................................................................ 14
Figure 8: Resistive Current Shunt.......................................................................................................... 14
Figure 9: Current Transformer............................................................................................................... 14
Figure 10: Connections for the RX Pin................................................................................................... 16
Figure 11: 78M6613 External Reset Behavior........................................................................................ 17
Figure 12: MAX810S Connections to the 78M6613................................................................................ 17
Figure 13: Reset Generator Based On TL431 Shunt Regulator.............................................................. 18
Figure 14: External Components for the Emulator Interface .................................................................. 18
Figure 15: Wh Accuracy, 10 mA to 20 A at 120 V/60 Hz and Room Temperature Using a 4 mΩ
Current Shunt....................................................................................................................... 25
Figure 16: Typical Measurement Accuracy over Temperature Relative to 25°C..................................... 25
Figure 17: 32-Pin QFN Pinout ............................................................................................................... 26
Figure 18: Package Outline (QFN 32).................................................................................................... 27
Figure 19: Recommended PCB Land Pattern Dimensions..................................................................... 28
Figure 20: I/O Equivalent Circuits.......................................................................................................... 31
Table
Table 1: Inputs Selected in Regular and Alternate Multiplexer Cycles...................................................... 6
Rev 2
3
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