Enhanced CAN / LIN / IEBus and memory lineup from RL78/F14
RL78/F15 automotive microcontrollers employ the RL78 core, which realizes high processing performance while delivering the lowest power consumption in its class.
A high-speed on-chip oscillator provides 32 MHz CPU operation. An enhanced motor control functionality is offered by the motor control timer (Timer RD), the D/A converter and a built-in comparator. For easy migration RL78/F15 is pin- and software upwards compatible to RL78/F14.
The RL78/F15 Group even supports 125 ℃ (target) operation, whereby a CPU clock of 24 MHz can be reached. In addition abundant functions to support functional safety, like ECC on RAM and a stack pointer monitor as well as a A/D converter testing function are available.
With packages from 48 to 144-pin, a memory range from 128 to 512 KB flash, and advanced IPs for LIN and 2 channels of CAN communication and IEBus, these products are very well suited for a broad range of cost sensitive automotive applications like DC- & BLDC motor control, HVAC, lighting and many kinds of body ECUs.
|Pin Count||48 pin||64 pin||80 pin||100 pin||144 pin|
|Program Flash||384, 512 KB||128 to 512 KB|
|Data Flash||16 KB||8/16 KB|
|SRAM||26 to 32 KB||10 to 32 KB|
|Power Supply Voltage||2.7 to 5.5 V|
|Max. Frequency||32 MHz (L grade) / 24 MHz (K grade)|
|System Clock||Main Oscillator||Crystal/ Ceramic/ Square wave||1 – 20 MHz (2.7 – 5.5 V operation)|
|High Speed On-chip Oscillator||High precision||32 MHz (Typ.)|
|Low Speed On-chip Oscillator||Low speed operation||15 kHz (Typ.)|
|Sub Oscillator||32.768 kHz|
|Peripheral Clock||Low Speed On-chip Oscillator||Except WDT||15 kHz (Typ.)|
|WDT||15 kHz (Typ.)|
|POR||1.56 V (Rising Power supply voltage) Typ. / 1.55 V (Falling power supply voltage) Typ.|
|LVD||2.81 to 4.74 V (6 stage : Rising Power supply voltage)
2.75 to 4.64 V (6 stage : Falling Power supply voltage)
|Safety Function||Flash memory CRC, Frequency detection, Clock monitor, A/D diagnostic etc.|
|Input||Oscillation Pin Only||4|
|DTC||46 sources||50 sources||52 sources|
|Timers||Timer Array Unit (TAU)||16-bit 8 channels x 2 units||16-bit 8 channels x 3 units|
|Timer RJ||16-bit x 1 channel|
|Timer RD||16-bit x 2 channels|
|Communication Interface||CSI/SimpleI²C/UART||4 channels / 4 channels / 2 channels SPI function supported||6 channels / 4 channels / 3 channels SPI function supported|
|Multi-Master I²C||1 channel|
|IEBus Controller||1 channel|
|LIN/UART (RLIN3)||2 channels||3 channels|
|CAN Interface (RS-CAN lite)||2 channels|
|Analog||10-bit A/D Converter||22 channels||27 channels||33 channels|
|8-bit D/A Converter||1 channel|
|ELC||Link source : 26 channels , Link destination : 9 channels|
You can find an explanation of orderable part numbers here.
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