Development of the SSXYZMicro-3B and SSXYZMicroHC-3B boards (RoHS compliant)

Simple Step will be releasing the new SSXYZMicro-3B in the next 2 months or less and the SSXYZMicroHC-3B soon afterwards. The highlights for both boards are as follows:
USB 2.0 virtual serial communications port (mini-B connection) from 9600 to 460.8K baud.

Hardware reset input for emergency stop.
Microstepping from FULL to 1/32 stepping.
RS232, RS422 and RS485 on board (jumper selectable).
On board 120 balance resistors for the RS422 and RS485 (jumper selectable)
600W TVS diode on the supply voltage.
Single-ended Quadrature encoder per axis.
3.3VDC board voltage and 5VDC Quadrature encoder supply voltage.
10 pin, 2.0mm dual row header with 4 Inputs and 1 open collector, 50ma output.
Home, Limit, 3 USER Inputs, 2 MOSFET diode clamped Outputs and 4 Spare I/O per axis.
RTOS, 32 bit, TRIP and 8K IEEPROM memory standard.
Slope torque control. Allows the user to apply more current to the motor during the acceleration and deceleration process.
Quadrature Encoder feedback includes auto-correction, detect only, count only and disabled modes for standard.
Software programmable motor, idle current limiting.
Motor decay control (limited).
Quadrature Encoder feedback includes auto-correction, detect only, count only and disabled modes standard.
10 pin, 2.0mm dual row header with 4 Inputs and 1 open collector, 50ma output.
IEEPROM memory can be programmed for control of all axis.
Motor driver has built in wire to wire short circuit protection, thermal shutdown, under voltage lockout and short circuit to ground protection.

The features for the SSXYZMicro-3B board will be as follows:

Operating voltages from 15 to 50VDC.
Operates bipolar and unipolar stepper motors from 100ma to 1.5 amps per phase.
Board size is 7.58 inches L x 4.20 inches W by 0.9 inches H.
RoHS compliant, 2 layer board.
Replaces the SSXYZMicro board.

The features for the SSXYZMicroHC-3B board will be as follows:

Operating voltages from 12 to 50VDC.
Operates bipolar and unipolar stepper motors from 250ma to 6.00 amps per phase.
Board size is 6.04 inches L x 4.18 inches W by 0.9 inches H (same foot print and mounting holes as the SSXYZ board).
RoHS compliant, 6 layer board.
5.0mm screw terminal block for main supply connection up to 14 AWG wire size.
Power dissipation of 4.176 watts per phase maximum.
Replaces the SSXYZ and SSXYZMicro77 boards.
5 Pin motor connectors with Shield ground connection.