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Densan DVE-SH7604 (9271)
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Densan DVE441 (9215A)
Densan DVE441 (9215A)

Densan DVE-SH7700

Product Name
Densan DVE-SH7700. Retrieved sources did not provide a Densan board manual for this model. The data below is the SuperH SH7700/SH3 microcontroller family reference for component-level identification only.
Product Introduction
SH7700 is a 32-bit RISC microcomputer family in the SuperH SH3 series. It is intended for embedded applications requiring higher integration than earlier SH2 devices, combining RISC CPU core, memory controller and configurable peripherals. Densan DVE-SH7700, if built around this silicon, would function as an embedded single-board or VME processor module.
Category:
Description
Technical Specifications
Architecture:​ 32-bit RISC, SuperH SH3 instruction set.
CPU Core:​ Single 32-bit SH3 core with register banks and system control registers.
Memory Interface:​ 32-bit external memory bus with memory controller support.
CMOS Process:​ Low-power CMOS implementation.
Family Scope:​ SH7700 group includes multiple sub-derivatives; exact on-chip peripherals, cache size, clock speed, USB/LCD/DSP options and package must be confirmed from the specific SH7700 subgroup manual.
Functional Features
RISC Throughput:​ 32-bit load/store operations, efficient control-flow instructions.
Memory Management:​ External SDRAM/ROM/flash control through integrated bus controller in applicable derivatives.
Peripheral Scalability:​ USB, LCD controller, audio interfaces, ADC/DAC and additional timers are present in certain SH7700 subgroup devices, but not in every device.
Application Scenarios
Industrial Embedded Computing:​ HMI controllers, communication processors and VME compute nodes.
Multimedia And Interface Cards:​ Devices with LCD, USB or audio subsystems when the specific SH7700 derivative includes those blocks.
Performance Parameters
Word Width:​ 32-bit internal and external data paths.
Clock Performance:​ Defined by the ordered SH7700 derivative; confirmation from the silicon manual is required before setting board clocks.
Material Composition
Die:​ CMOS semiconductor.
Package:​ BGA or QFP depending on derivative.
Board Materials:​ Obtain laminate, connector and mechanical data from Densan documentation.
Structural Characteristics
Core Plus Peripherals:​ CPU, cache/system memory, bus controller and selected peripheral IP integrated on one chip.
Configurable I/O:​ Peripheral availability varies by derivative and board wiring.
Working Principle
The SH3 core fetches and executes 32-bit-aligned RISC instructions, accesses external memory through the bus controller, services interrupts and coordinates peripherals such as serial, timer, USB or LCD blocks in derivatives that include them. On a board, the microcontroller acts as system supervisor, booting firmware and managing data movement between memory, network, storage and I/O.
Installation Requirements
Power Planes:​ Separate digital, memory and I/O voltages according to the derivative datasheet.
Clock Circuit:​ Use the oscillator or crystal specified for the exact SH7700 subgroup.
Memory Mapping:​ Define boot ROM, SDRAM, flash and peripheral regions before firmware release.
PCB Layout:​ Follow BGA escape routing, impedance rules and thermal pad guidelines for the selected package.
Usage Precautions
Derivative Confirmation:​ Do not assume USB, LCD, DSP or other features without the exact part number.
Electrical Ratings:​ Observe absolute maximum voltage, temperature and I/O standards.
ESD And Handling:​ Use anti-static assembly procedures for BGA/QFP devices.
Firmware Validation:​ Test boot loader, memory initialization and peripheral drivers on the actual board revision.
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