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RL78/D1A(Automotive Only)

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The following page content corresponds to the products marketed in Japan.
If you do not live in Japan, please

Product Overview:

The RL78/D1A is the successor of 78K0/Dx2 and suited for car instrumentation cluster and built-in car instrumentation cluster dedicated features such as Sound Generator, Stepper Motor Controller/Driver and LCD Segment Controller/Driver etc.

Pin Count / Memory Size Lineup:

Pin Count / Memory Size Lineup

Block Diagram:

Block Diagram image

Key Features:

48-pin 64-pin 80-pin 100-pin
Memory Space 1 MB
Register General purpose register 8 bits x 32 registers (8 bits x 8 registers x 4 banks)
Clock High-speed system clock : 1 to 20 MHz (VDD = 2.7 to 5.5 V)
On-chip high-speed oscillator: 32, 24, 16, 8, and 4 MHz (Ta=-40 to 85℃)/ 24, 16, 8, and 4 MHz (Ta=-40 to 105℃)
On-chip low-speed oscillator: 15 kHz, Subsystem clock: 32.768 kHz
I/O Port (I/O, In, Out) 38 (35, 3, 0) 54 (49, 5, 0) 68 (63, 5, 0) 84 (78, 5, 1)
Timer 16-bit : 8 ch x 3 units / RTC 1 ch/ Watchdog timer 1 ch
10-bit A/D converter 3+2 3+2 6+2 7+2
Serial interface CSI 2 ch 3 ch
I2C 1 ch
LIN/UART 1 ch 2 ch
CAN 0/1 ch 0/1 ch 0/1 ch 1/2 ch
DMA controller 2 ch 4 ch
Stepper motor driver/ controller with zero point detection 1 ch 2 ch 4 ch
LCD driver/controller 27 seg. x 4 com. 39 seg. x 4 com. 48 seg. x 4 com. 53 seg. x 4 com.
Sound Generator Yes
Power supply voltage 2.7 to 5.5 V
Operating ambient temperature J grade products Ta= -40 to 85℃ / L grade products Ta= -40 to 105℃

Key Applications:

Low-end car instrument cluster

Product Lineup:


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