Ordering Info and Specifications

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Device numbering scheme is as follows:


EM1000 numbering system

"A" and "T" versions are not standard and cannot be ordered from our online store. Contact Tibbo if you wish to order EM1000 devices with "A" or "T" options.

512K devices are no longer available.

If the flash memory size is omitted, 1024K option is implied.

To order the EM1000 in combination with the GA1000 module, use the "EM1000G" ordering code. This code means that the EM1000 module will be supplied with the GA1000 module soldered into it (resulting mechanical structure is presented as "option B" on the Mechanical Dimensions drawing).


Examples of valid model numbers


Model number



This is an obsolete device with only 512KBytes of flash memory


EM1000 module with GA1000 Wi-Fi add-on, 1024KBytes of flash memory and the supercapacitor (backup power source for the RTC)


EM1000 module with 1024KBytes of flash memory and the wireless add-on female connector soldered in


Hardware specifications

Ethernet interface

10/100BaseT Ethernet, Auto-MDIX, magnetics not built-in

Serial ports

4 ports, CMOS-level

UART capabilities

Baudrates up to 921'600bps; none/even/odd/mark/space parity and 7/8 bits/character

Number of I/O lines

"Regular" EM1000: 49 lines; option "-A" device: 54 lines;

all lines are 5V-tolerant;

40 of I/O lines are combined into five 8-bit ports;

8 lines can be used as interrupt lines.

Max. load current for each I/O line


Square wave generator

6Hz - 22'1184MHz, primarily intended for driving external buzzer

Real-time counter (RTC)

40 bit, increments at 128Hz, has its own backup power input

RTC backup power source

Supercapacitor, supports RTC for app. 6 days ("-S" version only); alternatively, external supercapacitor or backup battery can be connected.

Clock frequency

11.0592MHz with PLL off

88.4736MHz with PLL on

Flash memory

512KBytes or 1024KBytes, the entire memory minus 64KB is available for storing Tibbo BASIC/C application and data.

Typical write endurance is 100'000 write cycles per 256-byte sector. See the warning in Flash and EEPROM Memory.

EEPROM memory

2048 bytes, 2020 bytes available for storing application data.

Typical write endurance is around 1'000'000 write cycles per 16-byte EEPROM sector. See Prolonging and Estimating EEPROM life.

Nominal power supply voltage (VCC pin)

DC 3.3V, +/- 5%

Reset circuit trip voltage (VCC pin)

3.0V on power-up (i.e. when the voltage on VCC is rising)

2.9V on brown-out (i.e. when the voltage on VCC is dropping)

Operating current (VCC pin), not including hardware consumed by an add-on modules plugged into the EM1000

40mA with PLL off, Ethernet cable unplugged

50mA with PLL off, 10BaseT mode

110mA with PLL off, 100BaseT mode

160mA with PLL on, Ethernet cable unplugged

170mA with PLL on, 10BaseT mode

230mA with PLL on, 100BaseT mode

Backup power voltage range (VCCB pin)(1)

2.2V - 3.3V (option without "-S" only)

Backup current (VCCB pin)

1mA when the EM1000 is running (3.3V on VCC)

13uA when the EM1000 is not powered (0V on VCC)

Operating temperature

-20 to +70 degrees C

Operating relative humidity


Mechanical dimensions (excl. leads)

"Plain" EM1000: 38.4x28.4x5.5 mm

EM1000-...-S(2): 38.4x28.4x9.5 mm

EM1000G: 38.4x28.4x11.0 mm

EM1000G-...-S(2): 38.4x28.4x15.0 mm

Pin diameter



Plain EM1000 devices: tube, 10 modules/tube

All other variants: tray, 30 modules/tray




1.The RTC will not lose its data and will keep running as long as the backup voltage stays within this range.

2.The EM1000-xxxK-S device cannot be installed on the PCB directly. This is because it has a supercapacitor mounted on the bottom side of the module. This device must be be mounted on a socket.


All specifications are subject to change without notice and are for reference only. Tibbo assumes no responsibility for any errors in this Manual, and does not make any commitment to update the information contained herein.


Think the above table should contain additional data? Do not just assume that you know the answer — talk to Tibbo! Remember that the ultimate responsibility for all decisions you make regarding the use and the mode of use of Tibbo products lies with you, our Customer.