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HD404326UH Datasheet

Part NameDescriptionManufacturer
HD404326UH 4-Bit Microcontroller Hitachi
Hitachi -> Renesas Electronics Hitachi
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Description
The HD404328 Series is an HMCS400-Series microcomputer designed to increase program productivity and also to incorporate large-capacity memory. Each microcomputer has an LCD controller/driver, A/D converter, and zero-crossing detection circuit. Each also has a 32.768-kHz oscillator and low-power dissipation modes.

Features
• 4,096-word × 10-bit ROM (HD404324, HD404324U)
  6,144-word × 10-bit ROM (HD404326, HD404326U)
• 8,192-word × 10-bit ROM (HD404328, HD404328U)
  16,384-word × 10-bit PROM (HD4074329, HD4074329U)
• 280-digit × 4-bit RAM (HD404324, HD404324U, HD404326, HD404326U, HD404328, HD404328U) 536-digit × 4-bit RAM (HD4074329, HD4074329U)
• 35 I/O pins
- 2 input pins
- 33 input/output pins, including 8 high-current pins (15 mA, max.) and 16 pins multiplexed with LCD segment pins
• Three timer/counters
• 8-bit clock-synchronous serial interface
• 8-bit × 4-channel A/D converter
• 12-di git LCD cont rol l er/ driver (24 S EG × 4 C OM ) (HD404324U, HD404326U, HD404328U, HD4074329U: External LCD voltage division resistors are required)
• Zero-crossing detection circuit
• Eight interrupt sources
- Two external sources, including one double-edge function
- Six internal sources
• Subroutine stack
- Up to 16 levels, including interrupts
• Four low-power dissipation modes
- Subactive mode
- Standby mode
- Watch mode
- Stop mode
• Built-in oscillator
- Crystal or ceramic oscillator (external clock also enabled)
- 32.768 kHz crystal subclock
• Instruction cycle time: 2 µs (fOSC = 4 MHz)
• Two operating modes
- MCU mode
- PROM mode (HD4074329, HD4074329U)

 

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