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參數(shù)資料
| 型號： | M38854FD-HP |
| 廠商： | Renesas Technology Corp. |
| 英文描述： | PLCC Socket; Number of Contacts:32; Terminal Type:PCB Surface Mount; Contact Plating:Tin Over Nickel; Mounting Type:Surface Mount |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁數(shù)： | 90/103頁 |
| 文件大?。?/td> | 1580K |
| 代理商： | M38854FD-HP |
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3885 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
89
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.
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 with 1 to 10 k
resistance.
For the mask ROM version, there is no operational interference
even if CNV
SS
pin is connected to Vss pin via a resistor.
Electric Characteristic Differences Between
Mask ROM and Flash Memory Version MCUs
There are differences in electric characteristics, operation margin,
noise immunity, and noise radiation between Mask ROM and
Flash Memory version MCUs due to the difference in the manufac-
turing processes.
When manufacturing an application system with the Flash
Memory version and then switching to use of the Mask ROM ver-
sion, please perform sufficient evaluations for the commercial
samples of the Mask ROM version.
DATA REQUIRED FOR MASK ORDERS
The following are necessary when ordering a mask ROM produc-
tion:
1. Mask ROM Order Confirmation Form
2. Mark Specification Form
3. Data to be written to ROM, in EPROM form (three identical cop-
ies) or one floppy disk.
For the mask ROM confirmation and the mark specifications, refer
to the “Mitsubishi MCU Technical Information” Homepage:
http://www.infomicom.maec.co.jp/indexe.htm
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| M38854FE-HP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38854FF-HP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37534M4-XXXFP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38854MC-XXXHP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38854ME-XXXHP | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38854FE-HP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38854FF-HP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38854M1-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38854M2-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M38854M3-XXXHP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
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