SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER - Renesas Technology
Description
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 family 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.
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• 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 ...
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