High-function LCD microcontrollers with USB 2.0/rapid charging support for sensor modules and healthcare devices
RL78/L1C microcontrollers have a built-in segment LCD driver and USB 2.0 function. Three LCD driving voltage generation methods (external resistance division, capacitive split, and internal voltage boost) are supported, corresponding to a variety of segment LCD panels. They realize low current consumption (*1): external resistance division: 1.76 μA (*2), internal voltage boost: 1.23 μA, and capacitive split: 0.74 µA. They support USB high-speed battery charging (Battery Charging Specification 1.2) and come in a lineup of 80/100-pin, maximum 416 segment products. These microcontrollers can be used in sensor modules and healthcare devices as well as home appliances and measurement devices.
(*1) Current (typ.) at 1/3 bias, subclock operation, HALT mode, and RTC operation
(*2) Registance value for external registance division = 1000 kΩ
|With USB||Without USB||With USB||Without USB|
||64 – 256 KB|
|SRAM||8 – 16 KB|
|Interrupt||46 (Internal 37 /||42 (Internal 33 /||47 (Internal 38 /||43 (Internal 34 /|
|External 9)||External 9)||External 9)||External 9)|
|DTC||32 sources||30 sources||33 sources||31 sources|
|Support speed||Full speed (12 Mbps) /||-
||Full speed (12 Mbps) /||-
|Low speed (1.5 Mbps)||Low speed (1.5 Mbps)|
|Buffer Size||Max. 64 Bytes||-
||Max. 64 Bytes||-
|Transmission mode||Control, Bulk, Interrupt||-
||Control, Bulk, Interrupt||-
|Etc.||Battery Charging Rev. 1.2 support, Pull-up / Pull-down and D+ / D- line resistor built-in||-
||Battery Charging Rev. 1.2 support, Pull-up / Pull-down and D+ / D- line resistor built-in||-
|LCD Controller/Driver||40 seg. x 8 com. (44 seg. x 4 com.)||52 seg. x 8 com. (56 seg. x 4 com.)|
|12-bit ADC /||9 channels /||11 channels /||13 channels /|
|8-bit DAC||2 channels||2 channels||2 channels|
|Comparators||1 channel||2 channels|
Pin Count / Memory Size Lineup:
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