The RabbitCore RCM3700 series extends beyond standard serial to Ethernet devices by providing up to six serial ports along with a rich embedded I/O control feature set such as PWM and Quadrature Decoder Inputs. Additionally, the modules include a backup battery for protected data storage and for the real-time clock.
The software environment for the RCM3700 series offers an excellent platform for developing applications with web server capabilities, especially for remote monitoring and control. With a 1 MB on-board serial Flash, the RCM3700 series can store additional web pages or be used as a datalogger. The RCM3700 easily mounts onto a user-designed motherboard, making it ideal for new and existing applications. With an integrated hardware and software solution, the RCM3700 series ensures your product gets to market faster with lower development costs.
Device Manager is a feature of all Digi cellular gateways, routers, devices and components. Device Manager provides a robust suite of network management tools including authentication, configuration management, account management, asynchronous updates and alerts, group and individual software updating, network data storage and gateway programming.
Device Manager empowers IT, network operations and customer support organizations to conquer the challenges of managing the vast array of cellular equipment in their device networks. Network managers can remotely configure, upgrade, monitor and troubleshoot remote devices, and create applications that improve productivity, speed and efficiency.

The RCM3700 RabbitCore is the lowest priced Rabbit® 3000 microprocessor based core module designed for Ethernet/Internet applications. The RCM3700 features 512K Flash / 512K SRAM or 256K Flash / 128K SRAM, 4 serial ports, and an extremely small footprint (2.95" × 1.20" / 75 × 30 mm). The RCM3710 is the least expensive of the Ethernet/Internet enabled Rabbit 3000 microprocessor based RabbitCores starting at $47, qty. 100. The development kit price is $299. Extensive demo programs and software application templates make it easy to get the RCM3700 up and running in record time.
This RabbitCore mounts directly on a user-designed motherboard with a single 0.1" (2.54 mm) 2x20 dual-row IDC header and can interface with all manner of CMOS-compatible digital devices. 33 digital I/O (shared with serial ports), power, and other signals are routed directly to the motherboard. Built-in low — EMI features, including a clock spectrum spreader, practically eliminate EMI problems, helping OEMs pass European CE and other regulatory RF emissions tests.
The RCM3700 is equipped with +5 VDC tolerant I/O, quadrature encoder inputs, PWM outputs, and pulse capture and measurement capabilities. The RCM3700 also features a battery-backable real-time clock, glueless memory and I/O interfacing, and low-power "sleepy" modes. An alternate I/O bus can be configured for 8 data lines and 6 address lines (shared with parallel I/O).
Programmed with Rabbit's Dynamic C® integrated development environment, the RCM3700 executes math, logic, and I/O exceptionally quickly. The Rabbit 3000 microprocessor, RCM3700, and Dynamic C were designed in a complementary fashion for maximum performance and ease of use in embedded systems. Rabbit's industry-proven 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 royalty-free TCP/IP stack with source code.
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.
| North America: | International: | ||
|
RCM3700 RabbitCore Development Kit
View details |
101-0681 |
101-0681 |
![]() Contact Us |
| Models | North America: | International: | |
| RCM3700 View details |
20-101-1305 |
20-101-1305 |
![]() Contact Us |
| RCM3710 View details |
20-101-1328 |
20-101-1328 |
![]() Contact Us |
| RCM3720 View details |
20-101-1329 |
20-101-1329 |
![]() Contact Us |
| Development Kits | North America: | International: | |
| RCM3700 RabbitCore Development Kit View details |
101-0681 |
101-0681 |
![]() Contact Us |
| Product Options and Accessories | North America: | International: | |
Rabbit Cloning Board View details |
20-101-0589 |
20-101-0589 |
![]() Contact Us |
| RabbitLink Card View details |
20-101-0580 |
20-101-0580 |
![]() Contact Us |
| Keypad/Display Unit. (Cable not included) View details |
101-0601 |
101-0601 |
![]() Contact Us |
| Panel-Mount Keypad/Display Unit. Water-resistant remote keypad/display, 7-key/122 x 32 pixel LCD. (Cable not included) View details |
20-101-0541 |
20-101-0541 |
![]() Contact Us |
| Connector mini PCI Express View details |
498-0090 |
498-0090 |
![]() Contact Us |
| Latch connector mini PCI Express View details |
498-0091 |
498-0091 |
![]() Contact Us |
RS-232-to-USB Converter Cable View details |
20-151-0178 |
20-151-0178 |
![]() Contact Us |
USB Programming Cable with 1.27 mm Connectors View details |
20-101-1183 |
20-101-1183 |
![]() Contact Us |
Serial Programming Cable with 1.27 mm Connectors View details |
20-101-0542 |
20-101-0542 |
![]() Contact Us |
USB Programming Cable with 2 mm Connectors View details |
20-101-1201 |
20-101-1201 |
![]() Contact Us |
| Product Type | RCM3700 | RCM3710 | RCM3720 |
| Features | |||
| Microprocessor | Low-EMI Rabbit® 3000 at 22 MHz | ||
| Ethernet Port | 10Base-T interface, RJ-45, 2 LEDs | ||
| Flash Memory | 512K | 256K | 512K |
| SRAM | 512K | 128K | 256K |
| Serial Flash Memory | 1 MB | ||
| Backup Battery | Connection for user-supplied backup battery (to support RTC and SRAM) | ||
| General-Purpose I/O | 33 parallel digital I/O lines:
|
||
| Additional I/O | Reset | ||
| External 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 3.3V CMOS-compatible ports configurable as:
|
||
| Serial Rate | Maximum asynchronous baud rate = CLK/8 | ||
| Slave Interface | A slave port allows the RCM3700 series to be used as an intelligent 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 peripherals), one 10-bit timer with 2 match registers | ||
| Watchdog/Supervisor | Yes | ||
| Pulse-Width Modulators | 4 PWM output channels with 10-bit free-running counter and priority interrupts | ||
| Input Capture/Quadrature Decoder | 2-channel input capture can be used to time input signals from various port pins
|
||
| Power | 4.75–5.25V DC 100 mA @ 22.1 MHz, 5V; 78 mA @ 11.05 MHz, 5V | ||
| Operating Temperature | –40° C to +70° C | ||
| Humidity | 5% to 95%, non-condensing | ||
| Connectors | One 2 x 20, 0.1” pitch | ||
| Board Size | 1.20” × 2.95” × 0.89” (30 mm × 75 mm × 23 mm) | ||
| Pricing | |||
| Price (Qty. 1) Part Number w/ Mounting Holes |
$59 20-101-1305 |
$57 20-101-1328 |
$55 20-101-1329 |
| Development Kit Part Number w/ Mounting Holes |
$299 101-0681 |
N/A | $199 101-0964 |