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3826A Datasheet, PDF (1/93 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER | |||
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3826 Group (A version)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0029-0200
Rev.2.00
2006.05.24
DESCRIPTION
The 3826 group (A version) is the 8-bit microcomputer based on
the 740 family core technology.
The 3826 group (A version) has the LCD drive control circuit, an 8-
channel A/D converter, D/A converter, serial interface and PWM as
additional functions.
The various microcomputers in the 3826 group (A version) include
variations of internal memory size and packaging. For details, re-
fer to the section on part numbering.
For details on availability of microcomputers in the 3826 group (A
version), refer the section on group expansion.
FEATURES
⢠Basic machine-language instructions ....................................... 71
⢠The minimum instruction execution time ............................ 0.4 µs
⢠Memory size
(at 10 MHz oscillation frequency)
ROM ................................................................ 48 K to 60 K bytes
RAM ............................................................... 1536 to 2560 bytes
⢠Programmable input/output ports ............................................. 55
⢠Software pull-up resistors .................................................... Built-in
⢠Output ports ................................................................................. 8
⢠Input ports .................................................................................... 1
â¢Interrupts .................................................. 17 sources, 16 vectors
External ................ 7 sources (includes key input interrupt)
Internal ................................................................ 9 sources
Software ................................................................ 1 source
â¢Timers ............................................................ 8-bit â 3, 16-bit â 2
⢠Serial interface
Serial I/O1 ...................... 8-bit â 1 (UART or Clock-synchronous)
Serial I/O2 .................................... 8-bit â 1 (Clock-synchronous)
⢠PWM output .................................................................... 8-bit â 1
⢠A/D converter ............. 10-bit â 8 channels or 8-bit â 8 channels
⢠D/A converter .................................................. 8-bit â 2 channels
(used as DTMF and CTCSS function)
⢠LCD drive control circuit
Bias ......................................................................... 1/2, 1/3
Duty .................................................................. 1/2, 1/3, 1/4
Common output ................................................................ 4
Segment output .............................................................. 40
⢠2 Clock generating circuits
(connect to external ceramic resonator or quartz-crystal oscillator)
⢠Watchdog timer ............................................................. 14-bit â 1
⢠Power source voltage
In high-speed mode (f(XIN) = 10 MHz) ................... 4.5 V to 5.5 V
In high-speed mode (f(XIN) = 8 MHz) ..................... 4.0 V to 5.5 V
In middle-speed mode (f(XIN) = 6 MHz) ................. 1.8 V to 5.5 V
In low-speed mode .................................................. 1.8 V to 5.5 V
⢠Power dissipation
In high-speed mode ................................................... Typ. 28 mW
(f(XIN) = 10 MHz, VCC = 5 V, Ta = 25 °C)
In low-speed mode ...................................................... Typ. 27 µW
(f(XIN) = stop, f(XCIN) = 32 kHz, VCC = 3 V, Ta = 25 °C)
⢠Operating temperature range ................................... â 20 to 85°C
APPLICATIONS
Camera, household appliances, consumer electronics, etc.
Rev.2.00 May. 24, 2006 page 1 of 90
REJ03B0028-0200
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