Package Information
| Pitch (mm) | 0.5 |
| Lead Count (#) | 100 |
| Pkg. Type | LFQFP |
| Pkg. Dimensions (mm) | 14 x 14 x 1.7 |
| Pkg. Code | pkg_11659 |
Environmental & Export Classifications
| Moisture Sensitivity Level (MSL) | 3 |
| ECCN | 3A991 |
| RoHS (R5F10NPGDFB#55) | EnglishJapanese |
| Pb (Lead) Free | Yes |
| HTSUS |
Product Attributes
| Longevity | 4000 May |
| Carrier Type | Tape & Reel |
| Family Name | RL78 |
| Series Name | RL78/I1x |
| Group Name | I1C |
| CPU Architecture | RL78 |
| Main CPU | RL78-S3 |
| Sub CPU | No |
| Floating Point Unit | No |
| Bit Length | 16 |
| Program Memory (KB) | 128 |
| Data Flash (KB) | 2 |
| RAM (KB) | 8 |
| ECC SRAM | No |
| Lead Count (#) | 100 |
| Pkg. Type | LFQFP |
| Pitch (mm) | 0.5 |
| Pkg. Dimensions (mm) | 14 x 14 x 1.7 |
| Number of Supply Voltage(s) (#) | 1 |
| Supply Voltage (V) | 1.7 - 5.5 |
| I/O Ports | 68 |
| DMAC or DTC | DTC |
| DMA (ch) | 0 |
| Temperature Sensor (ch) (#) | 1 |
| Power-On Reset | Yes |
| Watchdog Timer (ch) | 1 |
| External Memory Bus (bit) | No |
| DRAM I/F | No |
| 3D GPU | No |
| Accelerator | No |
| Temp. Range | Ta = -40 to +85°C |
| External Interrupt Pins (#) | 12 |
| LVD or PVD | Yes |
| Operating Freq (Max) (MHz) | 24 |
| Operating Freq of Sub CPU (Max) | 0 |
| Sub-clock (32.768 kHz) | Yes |
| On-chip Oscillator | Yes |
| Ethernet speed | No |
| Ethernet (ch) | 0 |
| EtherCat (ch) (#) | 0 |
| USB Ports (#) | 0 |
| USB FS (host ch/device ch) | ( 0 / 0 ) |
| USB HS (host ch/device ch) | ( 0 / 0 ) |
| USB SS (host ch/device ch) | ( 0 / 0 ) |
| PCI Express (generation and ch) | No |
| SCI or UART (ch) | 4 |
| SPI (ch) | 3 |
| QSPI (ch) | 0 |
| OSPI (ch) | 0 |
| I2C (#) | 4 |
| I3C (ch) | 0 |
| CAN (ch) | 0 |
| CAN-FD (ch) | 0 |
| Wireless | No |
| IrDA | Yes |
| LIN (#) | 1 |
| SDHI (ch) | 0 |
| High Resolution Output Timer | No |
| PWM Output (pin#) | 7 |
| 32-Bit Timer (ch) | 0 |
| 16-Bit Timer (ch) (#) | 8 |
| 8-Bit Timer (ch) | 0 |
| Standby operable timer | No |
| Asynchronous General Purpose Timer / Interval Timer (ch) | 3 |
| RTC | Yes |
| 16-Bit A/D Converter (ch) | 0 |
| 14-Bit A/D Converter (ch) | 0 |
| 12-Bit A/D Converter (ch) | 0 |
| 10-Bit A/D Converter (ch) | 6 |
| 24-Bit Sigma-Delta A/D Converter (ch) | 4 |
| 16-Bit D/A Converter (ch) | 0 |
| 12-Bit D/A Converter (ch) | 0 |
| 10-Bit D/A Converter (ch) (#) | 0 |
| 8-Bit D/A Converter (ch) | 0 |
| Analog Comparator (ch) | 0 |
| OPAMP (ch) (#) | 0 |
| PGA (ch) | 0 |
| Capacitive Touch Sensing Unit (ch) | 0 |
| Graphics LCD Controller | No |
| MIPI Interfaces (DSI) (ch) | 0 |
| MIPI Interfaces (CSI) (ch) | 0 |
| Camera I/F (Parallel) | No |
| Image Codec | No |
| 2D Drawing Engine | No |
| Segment LCD Controller | Yes |
| SSI (ch) | 0 |
| Security & Encryption | AES |
| Debug Interface | Single wire serial |
| Moisture Sensitivity Level (MSL) | 3 |
| 12-Bit Timer (ch) | 1 |
| 32-Bit High Res Timer (ch) | 0 |
| ADC | 10-bit x 6-ch, 24-bit x 4-ch (Delta-Sigma) |
| Asynchronous General Purpose Timer (ch) | 0 |
| Bit Size | 16 |
| CPU | RL78 |
| DMA | No |
| DTC (ch) | 0 |
| Delta-Sigma A/D Converter | No |
| Ethernet | No |
| High-Speed Analog Comparator (ch) | 0 |
| Human Machine Interface | LCD Segment Count x 304 |
| Lead Compliant | Yes |
| Length (mm) | 14 |
| Low-Power Analog Comparator (ch) | 0 |
| MIPI Interfaces (DSI/CSI) | 0 |
| MOQ | 1000 |
| Pb (Lead) Free | Yes |
| SPI (#) | 0 |
| Tape & Reel | No |
| Thickness (mm) | 1.7 |
| Timer | 8-bit x 4-ch, 12-bit Interval Timer x 1-ch, 16-bit x 8-ch |
| UART (#) | 4 |
| USBFS (ch) | 0 |
| USBHS (ch) | 0 |
| Width (mm) | 14 |
Description
The RL78/I1C microcontroller integrates functions required for the metrology of smart electricity meters. It includes 24-bit ΔΣ A/D converters, 32-bit multiply-accumulator, independent power supply real-time clock, segment LCD driver supporting up to 8 com, and AES hardware engine that supports the DLMS standard. For single-phase two-wire meters, single-phase three-wire meters, and three-phase three-wire meters, 24-bit ΔΣ A/D converters (Max 4ch) are used for current and voltage sensing to achieve highly accurate power metrology.
Moreover, three-phase four-wire meters can be supported by the 100-pin QFP products, with ΔΣ A/D converters that are used for current sensing and a successive approximation A/D converter unit that is used for voltage sensing.
In addition, the products equipped with 512KB flash memory can also use the code flash area as two partitions, that is 256KB x 2 banks, independently. Thanks to the bank programming function in dual-bank mode and bank swapping, the system can update the firmware without stopping the metrology operation throughout the new firmware downloading and even the bank swapping period.