參數(shù)資料
型號(hào)： M38867M8A-A01HP
廠商： Mitsubishi Electric Corporation
英文描述： BUTT SPLICE INSULKRIMP TAPED (B-231XT)
中文描述： 單芯片8位CMOS微機(jī)
文件頁(yè)數(shù)： 86/110頁(yè)
文件大?。?/td> 1601K
代理商： M38867M8A-A01HP
86
3886 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
NOTES ON USAGE
Handling of Power Source Pins
In order to avoid a latch-up occurrence, connect a capacitor suit-
able for high frequencies as bypass capacitor between power
source pin (V
CC
pin) and GND pin (V
SS
pin), between power
source pin (V
CC
pin) and analog power source input pin (AV
SS
pin), and between program power source pin (CNVss/V
PP
) and
GND pin for flash memory version when on-board reprogramming
is executed. Besides, connect the capacitor to as close as pos-
sible. For bypass capacitor which should not be located too far
from the pins to be connected, a ceramic capacitor of 0.01
μ
F–0.1
μ
F is recommended.
EPROM version/One Time PROM version/
Flash memory version
The CNV
SS
pin is connected to the internal memory circuit block
by a low-ohmic resistance, since it has the multiplexed function to
be a programmable power source pin (V
PP
pin) as well.
To improve the noise reduction, connect a track between CNV
SS
pin and V
SS
pin or V
CC
pin with 1 to 10 k
resistance.
The mask ROM version track of CNV
SS
pin has no operational in-
terference even if it is connected to Vss pin or Vcc pin via a
resistor.
Erasing of Flash memory version
Set addresses 01000
16
to 0FFFF
16
as memory area for erasing in
the parallel serial I/O mode and the serial I/O mode. If the memory
area for erasing is set to mistaken area, the product may be per-
manently damaged.
DATA REQUIRED FOR MASK ORDERS
The following are necessary when ordering a mask ROM produc-
tion:
1.Mask ROM Confirmation Form
2.Mark Specification Form
3.Data to be written to ROM, in EPROM form (three identical cop-
ies)
DATA REQUIRED FOR One Time PROM
PROGRAMMING ORDERS
The following are necessary when ordering a PROM programming
service:
1.ROM Programming Confirmation Form
2.Mark Specification Form
3.Data to be programmed to PROM, in EPROM form (three identi-
cal copies)
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