![](http://datasheet.mmic.net.cn/30000/M34286G2-XXXGP_datasheet_2359488/M34286G2-XXXGP_3.png)
ROM type
QzROM
QzROM (blank)
Package
RAM size
(× 4 bits)
64 words
ROM size
(× 9 bits)
2048 words
Part number
M34286G2-XXXGP
M34286G2GP
DESCRIPTION
The 4286 Group is a 4-bit single-chip microcomputer designed
with CMOS technology for single-function remote control
transmitters. The computer is equipped with an 8-bit timer (has
two reload registers) can be set various carrier wave and an 8-
bit timer (has a reload register) can be control the carrier wave
output automatically.
The various microcomputers in the 4286 Group include variations
of type as shown in the table below.
FEATURES
Number of basic instructions ............................................. 72
Minimum instruction execution time ............................ 2.0 s
(at f(XIN) = 4.0 MHz, system clock = f(XIN)/2)
Supply voltage ................................................. 1.8 V to 3.6 V
Subroutine nesting ..................................................... 4 levels
Timer
Timer 1 ................................................................... 8-bit timer
(This has a reload register and carrier wave output auto-control
function)
Timer 2 ................................................................... 8-bit timer
(This has two reload registers and carrier wave output function)
Logic operation function (XOR, OR, AND)
RAM back-up function
Key-on wakeup function (ports D0–D7, E0–E2, G0–G3) .... 15
I/O port (ports D, E, G, CARR) .......................................... 16
Oscillation circuit ..................................... Ceramic resonance
Watchdog timer
Power-on reset circuit
Voltage drop detection circuit
Before CLVD instruction execution
Reset occurrence ............................... 1.5 V (Ta=25 °C)
Reset release .................................... 1.7 V (Ta=25 °C)
After CLVD instruction execution
Reset occurrence/Reset release ........ 1.7 V (Ta=25 °C)
APPLICATION
Consumer remote control transmitters
4286 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
REJ03B0251-0100
Rev.1.00
Aug 06, 2008
Rev.1.00
Aug 06, 2008
page 1 of 64
REJ03B0251-0100
PLSP0020JB-A (20P2F-A)