參數(shù)資料
型號: M38006M1-XXXFS
廠商: Mitsubishi Electric Corporation
元件分類: DC/DC變換器
英文描述: 1 watt dc-dc converters
中文描述: 1瓦的DC - DC轉換器
文件頁數(shù): 127/173頁
文件大?。?/td> 4203K
代理商: M38006M1-XXXFS
3800 GROUP USER’S MANUAL
3-25
APPENDIX
3.4 Countermeasures against noise
Fig. 3.4.2 Wiring for clock I/O pins
(3) Wiring for the V
PP
pin of the One Time PROM
version and the EPROM version
(In this microcomputer the V
PP
pin is also used
as the CNV
SS
pin)
Connect an approximately 5 k
resistor to theV
PP
pin the shortest possible in series and also to the V
SS
pin. When not connecting the resistor, make the
length of wiring between the V
PP
pin and the V
SS
pin
the shortest possible.
Note:Even when a circuit which inclued an
approximately 5 k
resistor is used in the Mask ROM
version, the maicrocomputer operates correctly.
Reason
The V
PP
pin of the One Time PROM and the EPROM
version is the power source input pin for the built-in
PROM. When programming in the built-in PROM,
the impedance of the V
PP
pin is low to allow the
electric current for wiring flow into the PROM. Be-
cause of this, noise can enter easily. If noise enters
the V
PP
pin, abnormal in struction codes or data are
read from the built-in PROM, which may cause a
program runaway.
3.4.2 Connection of a bypass capacitor across the
Vss line and the Vcc line
Connect an approximately 0.1
μ
F bypass capacitor
across the V
SS
line and the V
CC
line as follows:
G
Connect a bypass capacitor across the V
SS
pin
and the V
CC
pin at equal length .
G
Connect a bypass capacitor across the V
SS
pin
and the V
CC
pin with the shortest possible wiring.
G
Use lines with a larger diameter than other signal
lines for V
SS
line and V
CC
line.
Fig. 3.4.3 Wiring for the V
PP
pin of the One Time PROM
and the EPROM version
Fig. 3.4.4 Bypass capacitor across the V
SS
line and
the V
CC
line
AA
AA
AA
AA
AA
V
CC
AAAA
AAAA
AAAA
V
V
CC
Chip
AAA
AAA
A
X
IN
X
OUT
V
SS
An example of V
SS
patterns on the
underside of a printed circuit board
Oscillator wiring
pattern example
Separate the V
SS
line for oscillation from other V
SS
lines
Noise
X
IN
X
OUT
V
SS
X
IN
X
OUT
V
SS
N.G.
O.K.
CNV
SS
/V
PP
Approximately
5k
3800 group
V
SS
Make it the shortest possible
相關PDF資料
PDF描述
M38006M1-XXXSP 1 watt dc-dc converters
M38006M1-XXXSS 8-Bit 37.9 kSPS ADC Serial Out, Ratiometric Op or Vcc Ref, TTL/MOS Input & Output Compatible, 8 Ch. 20-SOIC
M38006M2-XXXFP 8-Bit 37.9 kSPS ADC Serial Out, Ratiometric Op or Vcc Ref, TTL/MOS Input & Output Compatible, 8 Ch. 20-PDIP
M38006M2-XXXFS 8-Bit 37.9 kSPS ADC Serial Out, Ratiometric Op or Vcc Ref, TTL/MOS Input & Output Compatible, 8 Ch. 20-TSSOP 0 to 70
M38006M2-XXXHP 8-Bit 37.9 kSPS ADC Serial Out, Ratiometric Op or Vcc Ref, TTL/MOS Input & Output Compatible, 8 Ch. 20-TSSOP 0 to 70
相關代理商/技術參數(shù)
參數(shù)描述
M38007RSS 制造商:Renesas Electronics Corporation 功能描述:EMULATION MCU/8BIT CMOS EMULATION CHIP - Bulk
M38007T-ADS 功能描述:DEV TEMPORARY TARGET BOARD FOR M RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 配件 系列:- 標準包裝:1 系列:- 附件類型:適配器板 適用于相關產品:RCB230,RCB231,RCB212 配用:26790D-ND - RCB BREAKOUT BOARD RS232 CABLE
M38007T-PRB 功能描述:EV 64-PIN RSS/MCU TO .5, .65 & . RoHS:否 類別:編程器,開發(fā)系統(tǒng) >> 配件 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program RoHS指令信息:IButton RoHS Compliance Plan 標準包裝:1 系列:- 附件類型:USB 至 1-Wire? RJ11 適配器 適用于相關產品:1-Wire? 設備 產品目錄頁面:1429 (CN2011-ZH PDF)
M3801 BK001 制造商:Alpha Wire 功能描述:CBL 3COND 18AWG BLK 1000'
M3801 BK002 制造商:Alpha Wire 功能描述:CBL 3COND 18AWG BLK 500'