RCM3750 RabbitCore®
Model RCM3750
Description
The RCM3750 features 10/100Base-T connectivity, 512K Flash / 512K SRAM, 4 serial ports, and an extremely small footprint (2.95" × 1.20" / 75 × 30 mm). The RCM3750 is $61, at qty. 100. The development kit price starts at $329. Extensive demo programs, application templates, and optional software modules enable rapid development of secure network embedded systems.
The RCM3750 RabbitCore mounts directly onto a user-designed motherboard using a single dual-row IDC header and can interface with all CMOS-compatible digital devices. Digital I/O (shared with serial ports), power, and other signals are directly routed to the motherboard. Built-in low EMI features, including a clock spectrum spreader, practically eliminate EMI problems, which helps OEMs pass European CE and other regulatory RF emissions tests.
Programmed with Rabbit's Dynamic C®, the RCM3750 quickly executes math, logic, and I/O functions. The Rabbit® 3000 microprocessor, RCM3750, and Dynamic C are designed in a complementary fashion for maximum performance and ease of use. The industryproven Dynamic C development system is a C language environment that includes an editor, compiler, and in-circuit debugger. User programs can be compiled, executed, and debugged using Dynamic C and a programming cable; no in-circuit emulator is required. An extensive library of drivers and sample programs is provided, including a royalty-free TCP/IP stack with source code.
Key Features
- Powerful Rabbit 3000 microprocessor @ 22.1 MHz
- 512K Flash / 512K SRAM
- 1 MB Serial Flash
- 10/100 Base-T, RJ-45 port
- 33 parallel digital I/O, alternate I/O bus
- 4 serial ports (IrDA, HDLC, asynch, sync, SPI)
- 3.3 V (with 5 V-tolerant I/O)
- Small Footprint
Design Advantages
- Ready-made platform for fast time-to-market, up to three months integration time savings.
- Ideal for network-enabling security & access systems, remote automation, data logging, and industrial controls.
- Complete microprocessor, on-board memory, royalty-free TCP/IP stack, and hundreds of sample programs reduces time-to-market by months.
Applications
- Network-Enabling Security
- Access Systems
- Building Automation
- HVAC Systems
- Industrial Controls
Designing with RabbitCores
The RabbitCore family of microprocessor core modules is designed to facilitate rapid development and implementation of embedded systems. RabbitCores are powered by high-performance 8-bit Rabbit microprocessors with extensive integrated features and a C-friendly instruction set designed for use with the Dynamic C® development system. The RabbitCore mounts on a user-designed motherboard and acts as the controlling microprocessor for the user's system. Small in size but packed with powerful features, these core modules give designers a complete package for control and communication.
Programs are developed using Rabbit Semiconductor's industry-proven Dynamic C software development system. An extensive library of drivers and sample programs is provided.
RabbitCore RCM3750 Specifications
| Features | RCM3750 |
|---|---|
| Microprocessor | Rabbit 3000A at 22.1 MHz |
| Ethernet Connectivity | 10/100Base-T, RJ-45 |
| EMI Reduction | Spectrum spreader for reduced EMI (radiated emissions) |
| Flash | 512K |
| SRAM | 512K |
| Serial Flash | 1 MB |
| Backup Battery | Connection for user-supplied backup battery |
| General-Purpose I/O | 33 parallel digital I/O lines
|
| Additional Input | Reset |
| Auxiliary I/O Bus | Can be configured for 8 data lines and 5 address lines (shared with parallel I/O lines), plus I/O read/write |
| Serial Ports | Four 3.3 V CMOS-compatible: |
| Serial Rate | Maximum asynchronous baud rate = CLK/8 |
| Slave Interface | A slave port allows the RCM3750 to be used as an intellegent peripheral device slaved to a master processor, which may either be another Rabbit 3000 or any other type of processor. |
| Real-Time Clock | Yes |
| Timers | Ten 8-bit timers (6 cascadable, 3 reserved for internal peripheral(s), one 10-bit timer with 2 match registers. |
| Watchdog Supervisor | Yes |
| Pulse-Width Modulators | 4 PMW output channels with 10-bit free-running counter and priority interupts |
| Input Capture / Quadrature Decoder | 2-Channel input capture can be used to time input signals from various port pins: |
| Power | Input: 4.75-5.25 V DC 175 mA @ 22.1 MHz; 150 mA @ 11.05 MHz |
| Operating Temp. | -40°C to +70°C |
| Humidity | 5-95%, noncondensing |
| Connectors | Single 2 x 20, 0.1" (2.54mm) header |
| Board Size | 2.95" × 1.20 " × 0.89" (75 mm x 30 mm x 23 mm) |
| Part Number | 20-101-1028 |
| Development Kit | U.S. 101-1049, Int'l 101-1050 |




