參數(shù)資料
型號(hào)： M34238MK-XXXGP
元件分類(lèi)： 微控制器/微處理器
英文描述： 4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
封裝： PLASTIC, SOP-20
文件頁(yè)數(shù)： 34/41頁(yè)
文件大小： 243K
代理商： M34238MK-XXXGP
MITSUBISHI MICROCOMPUTERS
4238 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER for INFRARED REMOTE CONTROL TRANSMITTERS
3
System clock frequency
Clock generating circuit
ROM
RAM
FUNCTIONS OF M34238MK-XXXGP
Functions
59
8.0
s (at 4.0MHz system clock frequency)
4.0MHz
Built-in (external ceramic resonance)
768 words
× 9 bits
32 words
× 4 bits
Eight independent output ports
1-bit I/O port (pull-up on at input operation)
4-bit I/O port (pull-up on)
Carrier wave output (CMOS output)
4 levels (1 level is used when the TABP p instruction is executed)
CMOS silicon gate process
20-pin plastic molded SOP
–20 to 85
°C
2.2 to 3.6V
Parameter
Number of basic instructions
Minimum instruction execution time
VDD = 2.2 to 3.6V
DEFINITION OF CLOCK AND CYCLE
System clock
This is the source clock input to the XIN pin. Either the clock ob-
tained by connecting an oscillator between the XIN and XOUT pins,
or the external clock supplied through the XIN pin can be specified.
Instruction clock
This is the basic clock for controlling this product. A signal of the
system clock divided by 4 or 32 is selected as this instruction clock.
Machine cycle
One machine cycle is the time required to execute the minimum in-
struction (one-cycle instruction). The machine cycle is equivalent to
the instruction clock cycle.
Subroutine nesting
Device structure
Package
Operating temperature Range
Supply voltage
Clock
Memory sizes
Input/Output ports
Output
I/O
Output
D
E
G
CARR
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