Product Overview:
LCD driver MCU with built-in A/D converter, serial interface, sub-clock, etc. Maximum oscillation frequency is 12.5MHz. Comes in a 64-pin package. QzROM version and Flash memory version are pin-compatible with 38C2A Group. Enhanced with ROM correction function and on-chip oscillator.
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The following difference documents can be downloaded from an "Application Notes" button
in the left navigation on this page.
- Difference Between 38C1 Group and 38D2 Group (Document No.REJ05B1056)
- Difference between 38C2A Group and 38D2 Group (Document No.REJ05B0833)
- Difference Between 38D5 Group and 38D2 Group (Document No.REJ05B1055)
Key Features:
- Basic machine-language instructions: 71
- The minimum instruction execution time: 0.32 μs(at 12.5 MHz oscillation frequency)
- Memory size (QzROM version)
- ROM: 16 K to 60 K bytes
- RAM: 640 to 2048 bytes
- Memory size (Flash memory version)
- ROM: 60 K bytes
- RAM: 2048 bytes
- Programmable input/output ports: 51 (common to SEG: 24)
- Interrupts: 18 sources, 16 vectors
- Timers: 8-bit × 4, 16-bit × 2
- Serial Interface : 8-bit × 2 (UART or Clock-synchronized)
- PWM: 10-bit × 2, 16-bit × 1 (common to IGBT output)
- A/D converter: 10-bit × 8 channels (A/D converter can be operated in low-speed mode.)
- Watchdog timer: 8-bit × 1
- ROM correction function : 32 bytes × 2 vectors
- LED direct drive port: 8 (average current: 15 mA, peak current: 30 mA, total current: 90 mA)
- LCD drive control circuit
- Bias: 1/2, 1/3
- Duty: 2, 3, 4
- Common output: 4
- Segment output: 24
- Main clock generating circuit: 1 (connect to external ceramic resonator or on-chip oscillator)
- Sub-clock generating circuit: 1 (connect to external quartz-crystal oscillator)
- Power source voltage (QzROM version)
- [In frequency/2 mode]
- (f(XIN) < 12.5 MHz) : 4.5 to 5.5 V
- (f(XIN) < 8 MHz) : 4.0 to 5.5 V
- (f(XIN) < 4 MHz) : 2.0 to 5.5 V
- (f(XIN) < 2 MHz) : 1.8 to 5.5 V
- [In frequency/4 mode]
- (f(XIN) < 16 MHz) : 4.5 to 5.5 V
- (f(XIN) < 8 MHz) : 2.0 to 5.5 V
- (f(XIN) < 4 MHz) : 1.8 to 5.5 V
- [In frequency/8 mode]
- (f(XIN) < 16 MHz) : 4.5 to 5.5 V
- (f(XIN) < 8 MHz) : 2.0 to 5.5 V
- (f(XIN) < 4 MHz) : 1.8 to 5.5 V
- [In low-speed mode]: 1.8 to 5.5 V
- [In frequency/2 mode]
- Power source voltage (Flash memory version)
- [In frequency/2 mode]
- (f(XIN) < 12.5 MHz) : 4.5 to 5.5 V
- (f(XIN) < 8 MHz) : 4.0 to 5.5 V
- (f(XIN) < 4 MHz) : 2.7 to 5.5 V
- [In frequency/4 mode]
- (f(XIN) < 16 MHz) : 4.5 to 5.5 V
- (f(XIN) < 8 MHz) : 2.7 to 5.5 V
- [In frequency/8 mode]
- (f(XIN) < 16 MHz) : 4.5 to 5.5 V
- (f(XIN) < 8 MHz) : 2.7 to 5.5 V
- [In low-speed mode]: 2.7 to 5.5 V
- [In frequency/2 mode]
- Power dissipation (QzROM version)
- In frequency/2 mode: Typ. 32 mW (VCC = 5 V, f(XIN) = 12.5 MHz, Ta = 25 degrees C)
- In low-speed mode: Typ. 18 μW (VCC = 2.5 V, f(XIN) = stop, f(XCIN) = 32 kHz, Ta = 25 degrees C)
- Power dissipation (Flash memory version)
- In frequency/2 mode: Typ. 20 mW (VCC = 5 V, f(XIN) = 12.5 MHz, Ta = 25 degrees C)
- In low-speed mode: Typ. 1.1 mW (VCC = 2.7 V, f(XIN) = stop, f(XCIN) = 32 kHz, Ta = 25 degrees C)
- Operating temperature range: -20 to 85 degrees C
Flash Memory Mode
- Program/Erace voltage: VCC = 2.7 to 5.5 V
- Program method: Programming in unit of byte
- Erace method: Block erasing
- Program/Erase control by software command
Key Applications:
Home appliances, consumer electronics
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