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DESCRIPTION
The 3822 group is the 8-bit microcomputer based on the 740 family core technology. The 3822 group has the LCD drive control circuit, an 8-channel
A-D converter, and a serial I/O as additional functions.
The various microcomputers in the 3822 group include variations of internal memory size and packaging. For details, refer to the section on part numbering.
For details on availability of microcomputers in the 3822 group, refer to the section on group expansion.FEATURES
● Basic machine-language instructions ...................................... 71
● The minimum instruction execution time ........................... 0.5 µs (at 8 MHz oscillation frequency)
● Memory size
ROM ................................................................. 4 K to 48 K bytes
RAM ................................................................. 192 to 1024 bytes
● Programmable input/output ports ............................................ 49
● Software pull-up/pull-down resistors (Ports P0-P7 except port P40)
● Interrupts ................................................. 17 sources, 16 vectors
(includes key input interrupt)
● Timers ........................................................... 8-bit ✕ 3, 16-bit ✕ 2
● Serial I/O ...................... 8-bit ✕ 1 (UART or Clock-synchronized)
● A-D converter ................................................. 8-bit ✕ 8 channels
● LCD drive control circuit
Bias ................................................................................... 1/2, 1/3
Duty ........................................................................... 1/2, 1/3, 1/4
Common output .......................................................................... 4
Segment output ........................................................................ 32
● 2 clock generating circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
● Power source voltage
In high-speed mode .................................................. 4.0 to 5.5 V
In middle-speed mode ............................................... 2.5 to 5.5 V
(Extended operating temperature version:
2.0 to 5.5 V, Ta= – 20 to 85°C
3.0 to 5.5 V, Ta= – 40 to – 20°C)
(One time PROM version: 2.5 to 5.5 V)
(M version: 2.2 to 5.5 V)
(H version: 2.0 to 5.5 V)
In low-speed mode .................................................... 2.5 to 5.5 V
(Extended operating temperature version:
2.0 to 5.5 V, Ta= – 20 to 85°C
3.0 to 5.5 V, Ta= – 40 to – 20°C)
(One time PROM version: 2.5 to 5.5 V)
(M version: 2.2 to 5.5 V)
(H version: 2.0 to 5.5 V)
● Power dissipation
In high-speed mode ..........................................................32 mW
(at 8 MHz oscillation frequency, at 5 V power source voltage)
In low-speed mode ............................................................ 45 µW
(at 32 kHz oscillation frequency, at 3 V power source voltage)
● Operating temperature range................................... – 20 to 85°C
(Extended operating temperature version: – 40 to 85 °C)APPLICATIONS
Camera, household appliances, consumer electronics, etc.
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Similar parts: 430483 , Click to view
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Datasheet
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Shopping guide
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- Datasheet: Download EBMGHAG245FE
- Chipdatas Part: CD94-EBMGHAG245FE
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- Last Updated: 2024/06/02 14:58 +0800
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