參數(shù)資料
型號(hào)： UPD70F3025AGC-25-8EU
廠商： NEC Corp.
英文描述： V853TM 32-/16-BIT SINGLE-CHIP MICROCONTROLLER
中文描述： V853TM 32-/16-BIT單片機(jī)
文件頁(yè)數(shù)： 42/44頁(yè)
文件大?。?/td> 295K
代理商： UPD70F3025AGC-25-8EU
μ
PD70F3003A, 70F3025A
42
Data Sheet U13189EJ3V0DS00
NOTES FOR CMOS DEVICES
1
PRECAUTION AGAINST ESD FOR SEMICONDUCTORS
Note:
Strong electric field, when exposed to a MOS device, can cause destruction of the gate oxide and
ultimately degrade the device operation. Steps must be taken to stop generation of static electricity
as much as possible, and quickly dissipate it once, when it has occurred. Environmental control
must be adequate. When it is dry, humidifier should be used. It is recommended to avoid using
insulators that easily build static electricity. Semiconductor devices must be stored and transported
in an anti-static container, static shielding bag or conductive material. All test and measurement
tools including work bench and floor should be grounded. The operator should be grounded using
wrist strap. Semiconductor devices must not be touched with bare hands. Similar precautions
need to be taken for PW boards with semiconductor devices on it.
2
HANDLING OF UNUSED INPUT PINS FOR CMOS
Note:
No connection for CMOS device inputs can be cause of malfunction. If no connection is provided
to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence
causing malfunction. CMOS devices behave differently than Bipolar or NMOS devices. Input
levels of CMOS devices must be fixed high or low by using a pull-up or pull-down circuitry. Each
unused pin should be connected to V
DD
or GND with a resistor, if it is considered to have a
possibility of being an output pin. All handling related to the unused pins must be judged device
by device and related specifications governing the devices.
3
STATUS BEFORE INITIALIZATION OF MOS DEVICES
Note:
Power-on does not necessarily define initial status of MOS device. Production process of MOS
does not define the initial operation status of the device. Immediately after the power source is
turned ON, the devices with reset function have not yet been initialized. Hence, power-on does
not guarantee out-pin levels, I/O settings or contents of registers. Device is not initialized until
the reset signal is received. Reset operation must be executed immediately after power-on for
devices having reset function.
Related document
:
μ
PD703003 Data Sheet (U12261E)
μ
PD703003A, 703004A, 703025A Data Sheet (U13188E)
μ
PD70F3003 Data Sheet (U12036E)
Reference document
: Concept of Electrical Characteristics - Microcomputers (IEI-601) (Japanese version)
The related documents referred to in this publication may include preliminary versions. However, preliminary
versions are not marked as such.
V850 Family and V853 are trademarks of NEC Corporation.
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