- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45033 > M37481E8FP 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP44 PDF資料下載
參數(shù)資料
| 型號： | M37481E8FP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | 10 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件頁數(shù)： | 53/100頁 |
| 文件大?。?/td> | 1457K |
| 代理商： | M37481E8FP |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁當(dāng)前第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁
53
MITSUBISHI MICROCOMPUTERS
7480/7481 GROUP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
Table 9. Recommended operating conditions (cont.)
Symbol
Parameter
Standard values
Min.
Typ.
Max.
Unit
1
2
250
500
1
2
2.2VCC –2
8
f(CNTR)
f(SCLK)
f(XIN)
f(XIN) = 4 MHz
f(XIN) = 8 MHz
f(XIN) = 4 MHz
f(XIN) = 8 MHz
f(XIN) = 4 MHz
f(XIN) = 8 MHz
VCC = 2.7 to 4.5 V
VCC = 4.5 to 5.5 V
MHz
kHz
MHz
Timer input frequency CNTR0 (P40),
CNTR1 (P41) (Note 3)
Clock input oscillation frequency (Note 3)
Serial I/O clock input
frequency SCLK (P16)
(Note 3)
Clock synchronous
serial I/O mode
UART mode
Notes 1 : –40 to 85 °C for extended operating temperature range version.
2 : The average output currents IOH(avg) and IOL(avg) are the average values during 100 ms.
3 : The clock input oscillation frequency is at 50 % duty ratio.
4 : When applying a voltage through a resistor as shown in the figure 54, VI > VCC may be accepted if the current is 1 mA or less.
Fig. 54 Note on use of port P4
Notes on Clamp Diode (7480 Group)
(1) Total input current
The current of port P4 through the clamp diode can be drawn
up to 1.0 mA per port. When a current that cannot be con-
sumed by microcomputer is sent to the clamp diode, this may
raise the power source pin voltage of the microcomputer.
The system power circuit must be designed so that the power
source voltage of the microcomputer may be stabilized within
standard values.
(2) Maximum input voltage
If the input voltage of a signal connected to port P4 is beyond
VCC + 0.3 V, the input waveform should have a delay exceed-
ing 2
s/V from the moment that this waveform goes over the
voltage.
For using a CR circuit for delay, calculate a proper delay value
by the following expression:
where VIN = Maximum input voltage amplitude margin and
t = C ! R.
dt
dv
=≥ 2 ! 10–6 (s/V)
t
0.6 ! VIN
Port P4
I
VI
The clamp diode of the 7480/7481 group is designed for a level
shift of DC signal unlike ordinary switching diodes. Do not apply
sudden stress, such as rush current, directly to the diode.
Notes on Countermeasures for Noise and
Latch-up (7480 Group)
(1) Connect a bypass capacitor (0.1
F) across the VCC pin and
the VSS pin with the shortest possible wiring, using a relatively
thick wire.
(2) Connect a bypass capacitor (0.01
F) across the VREF pin and
the VSS pin with the shortest possible wiring, using a relatively
thick wire.
(3) In the oscillation circuit, connect across the XIN and XOUT pins
with the shortest possible wiring. Connect the GND and VSS
pins of the oscillation circuit with the shortest possible wiring,
using a relatively thick wire.
(4) In the case of the P33/VPP pin of the built-in programmable
ROM version, connect an approximately 5 k
resistor to the
P33/VPP pin the shortest possible in series.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M37480E8T-XXXFP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDSO32 |
| M37481E8-XXXSP | 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP42 |
| M37480M2T-XXXSP | 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| M37480E8SP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32 |
| M37480E8-XXXSP | 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M37481E8SP | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481E8SS | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 16KB EPROM 5V 42PIN SDIP - Bulk |
| M37481E8T | 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481E8T-XXXFP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES |
| M37481E8T-XXXSP | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。