Ordering Info and Specifications

The device numbering scheme for the EM1000 is as follows:

An illustration of the EM1000 numbering scheme.

"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.

Devices with 512KB of flash are no longer available.

If the flash memory size is omitted, the 1,024K option is implied.

To order the EM1000 in combination with the WA2000 Wi-Fi/BLE add-on module, use the "EM1000NC" ordering code for the WA2000C (chip antenna onboard) and "EM1000NU" ordering code for the WA2000U (coaxial connector for an external antenna). These codes mean that the EM1000 module will be supplied with the WA2000 add-on soldered into it (the resulting mechanical structure is presented as "option B" in the Mechanical Dimensions drawing).

Hardware Specifications

Ethernet interface

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

Serial ports

Four 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.

Eight 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 an 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 approximately six 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

512KB or 1,024KB, 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 Memory and EEPROM.


2,048 bytes, 2,020 bytes available for storing application data.

Typical write endurance is about 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)

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

Operating temperature

–20°C to +70°C

Operating relative humidity

10% ~ 90%

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.

Ordering Info and Specifications

Hardware Specifications