3826OTP Datasheet, PDF (1/91 Pages) Renesas Technology Corp – SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER

3826 Group (One Time PROM version)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
REJ03B0181-0100
Rev.1.00
Sep 06, 2006
DESCRIPTION
The 3826 group is the 8-bit microcomputer based on the 740 fam-
ily core technology.
The 3826 group 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 (One Time PROM
version) include variations of internal memory size and packaging.
This datasheet describes only the One Time PROM version (ROM
60 K version) of 3826 Group.
FEATURES
• ^{Basic machine-language instructions ....................................... 71}
• ^{The minimum instruction execution time ............................ 0.5 µs}
• ^{Memory size}
(at 8MHz oscillation frequency)
ROM ............................................................................. 60 K bytes
RAM ............................................................................ 2560 bytes
• ^{Programmable input/output ports ............................................. 55}
• ^{Software pull-up resistors .................................................... Built-in}
• ^{Output ports ................................................................................. 8}
• ^{Input ports .................................................................................... 1}
•^{Interrupts .................................................. 17 sources, 16 vectors}
External ................ 7 sources (includes key input interrupt)
Internal ................................................................ 9 sources
Software ................................................................ 1 source
•^{Timers ............................................................ 8-bit ✕ 3, 16-bit ✕ 2}
• ^{Serial interface}
Serial I/O1 ...................... 8-bit ✕ 1 (UART or Clock-synchronous)
Serial I/O2 .................................... 8-bit ✕ 1 (Clock-synchronous)
• ^{PWM output .................................................................... 8-bit ✕ 1}
• ^{A/D converter ............. 10-bit ✕ 8 channels or 8-bit ✕ 8 channels}
• ^{D/A converter .................................................. 8-bit ✕ 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 ✕ 1}
• ^{Power source voltage}
In high-speed mode (f(XIN) = 8 MHz) ..................... 4.0 V to 5.5 V
In middle-speed mode (f(XIN) = 8 MHz) ................. 2.5 V to 5.5 V
In low-speed mode .................................................. 2.5 V to 5.5 V
• ^{Power dissipation}
In high-speed mode ................................................... Typ. 32 mW
(f(XIN) = 8 MHz, VCC = 5 V, Ta = 25 °C)
In low-speed mode ...................................................... Typ. 45 µW
(f(XIN) = stop, f(XCIN) = 32 kHz, VCC = 3 V, Ta = 25 °C)
• ^{Operating temperature range ................................... – 20 to 85°C}
APPLICATIONS
Camera, cordless phone, wireless application, household appli-
ances, etc.
Rev.1.00 Sep 06, 2006 page 1 of 88
REJ03B0181-0100