Model number

Description

EM1202-512K

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

EM1202-1024K

EM1202 module with 1,024KB of flash memory

EM1202

EM1202 module with 1,024KB of flash memory

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

32 lines, all lines are 5V-tolerant;

24 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

10mA

Square wave generator

6Hz~22.1184MHz, primarily intended for driving external buzzer

Clock frequency

11.0592MHz with PLL off

88.4736MHz with PLL on

Flash memory

512KB or 1,024KB, entire memory minus 64KB is available to store 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.

EEPROM

2,048 bytes, 2,020 bytes available to store 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 EM1202

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

Operating temperature

–20°C to +70°C

Operating relative humidity

10% ~ 90%

Mechanical dimensions (excl. leads)

17.1x19.1x14.6mm

Pin diameter

0.4mm

Packaging

Tray, 30 modules/tray