- 您现在的位置：买卖IC网 > PDF目录80580 > M37481M8-XXXFP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44 PDF资料下载
参数资料
| 型号： | M37481M8-XXXFP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44 |
| 封装： | 10 X 10 MM, 0.80 MM PITCH, PLASTIC, QFP-44 |
| 文件页数： | 53/100页 |
| 文件大小： | 1457K |
| 代理商： | M37481M8-XXXFP |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页当前第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页第65页第66页第67页第68页第69页第70页第71页第72页第73页第74页第75页第76页第77页第78页第79页第80页第81页第82页第83页第84页第85页第86页第87页第88页第89页第90页第91页第92页第93页第94页第95页第96页第97页第98页第99页第100页
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.
相关PDF资料 |
PDF描述 |
|---|---|
| M37481M8T-XXXSP | 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDIP42 |
| MB96F356ASAPMC-GE2 | 16-BIT, FLASH, 56 MHz, MICROCONTROLLER, PQFP64 |
| MB96F356RWAPMC1-GSE2 | 16-BIT, FLASH, 56 MHz, MICROCONTROLLER, PQFP64 |
| MB95F204KP-G-SH-SNE2 | 8-BIT, FLASH, 16.25 MHz, MICROCONTROLLER, PDIP24 |
| ML610Q346-XXXTB | 8-BIT, FLASH, 4.2 MHz, RISC MICROCONTROLLER, PQFP64 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| M37481M8-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES |
| M37481MT-088FP | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT | 制造商:MITSUBISHI 制造商全称:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT-XXXFP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| M37481MXT-XXXSP | 制造商:RENESAS 制造商全称:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
发布紧急采购，3分钟左右您将得到回复。