M38039G4H-XXXHP RENESAS [Renesas Technology Corp], M38039G4H-XXXHP Datasheet - Page 69

• Manufacturer Part Number: M38039G4H-XXXHP
• Description: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
• Manufacturer: RENESAS [Renesas Technology Corp]

3803 Group (Spec.H QzROM version)
Rev.1.10
REJ03B0166-0110
NOTES ON USAGE
Termination of Unused Pins.
Be sure to perform the termination of unused pins.
Handling of Power Source Pins
In order to avoid a latch-up occurrence, connect a capacitor
suitable for high frequencies as bypass capacitor between power
source pin (V
source pin (V
pin). Besides, connect the capacitor to as close as possible. For
bypass capacitor which should not be located too far from the
pins to be connected, a ceramic capacitor of 0.01 µF−0.1 µF is
recommended.
Power Source Voltage
When the power source voltage value of a microcomputer is less
than the value which is indicated as the recommended operating
conditions, the microcomputer does not operate normally and
may perform unstable operation.
In a system where the power source voltage drops slowly when
the power source voltage drops or the power supply is turned off,
reset a microcomputer when the power source voltage is less
than the recommended operating conditions and design a system
not to cause errors to the system by this unstable operation.
Electric Characteristic Differences Between Flash
Memory, Mask ROM and QzROM Version MCUs
There are differences in the manufacturing processes and the
mask pattern among flash memory, mask ROM, and QzROM
version MCUs due to the differences of the ROM type. Even
when the ROM type is the same, when the memory size is
different, the manufacturing processes and the mask pattern
differ. For these reasons, the oscillation circuit constants and the
characteristics such as a characteristic value, operation margin,
noise immunity, and noise radiation within the limits of electrical
characteristics may differ.
When manufacturing an application system, please perform
sufficient evaluations in each product. Especially, when
switching a product (example: change from the mask ROM
version to QzROM version), please perform sufficient
evaluations by the switching product in the stage before mass-
producing an application system.
Product Shipped in Blank
As for the product shipped in blank, Renesas does not perform
the writing test to user ROM area after the assembly process
though the QzROM writing test is performed enough before the
assembly process. Therefore, a writing error of approx.0.1 %
may occur. Moreover, please note the contact of cables and
foreign bodies on a socket, etc. because a writing environment
may cause some writing errors.
QzROM Version
Connect the CNV
pattern which is supplied to the V
In addition connecting an approximately 5 kΩ resistor in series to
the GND could improve noise immunity. In this case as well as
the above mention, connect the pin the shortest possible to the
GND pattern which is supplied to the V
microcomputer.
• Reason
The CNV
QzROM. When programming in the QzROM, the impedance of
the V
into the built-in QzROM. Because of this, noise can enter easily.
If noise enters the V
are read from the QzROM, which may cause a program runaway.
PP
pin is low to allow the electric current for writing to flow
SS
/V
CC
CC
Nov 14, 2005
PP
pin) and GND pin (V
pin is the power source input pin for the built-in
pin) and analog power source input pin (AV
SS
/V
PP
PP
pin, abnormal instruction codes or data
pin the shortest possible to the GND
SS
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pin of the microcomputer.
SS
pin), and between power
S S
pin of the
SS
Fig 63. Wiring for the CNV
Notes On QzROM Writing Orders
When ordering the QzROM product shipped after writing,
submit the mask file (extension: .msk) which is made by the
mask file converter MM.
Be sure to set the ROM option (“MASK option” written in the
mask file converter) setup when making the mask file by using
the mask file converter MM.
Notes On ROM Code Protect
(QzROM product shipped after writing)
As for the QzROM product shipped after writing, the ROM code
protect is specified according to the ROM option setup data in
the mask file which is submitted at ordering.
Renesas Technology corp. uses the ROM option setup data at the
ROM code protect address (address FFDB
QzROM. Consequently, the actual written value might differ
from the ordered value as the contents of the ROM code protect
address.
The ROM option setup data in the mask file is “00
enabled, “FE
“FF
code protect address of the QzROM product shipped after
writing are “00
Note that the mask file which has nothing at the ROM option
data or has the data other than “00
be accepted.
DATA REQUIRED FOR QzROM WRITING ORDERS
The following are necessary when ordering a QzROM product
shipped after writing:
1. QzROM Writing Confirmation Form*
2. Mark Specification Form*
3. ROM data...........Mask file
* For the QzROM writing confirmation form and the mark
specification form, refer to the “Renesas Technology Corp.”
Homepage (http://www.renesas.com/homepage.jsp).
Note that we cannot deal with special font marking (customer's
trademark etc.) in QzROM microcomputer.
16
” for protect disabled. Therefore, the contents of the ROM
Note. Shows the microcomputer’s pin.
16
CNV
16
” (protect enabled to the protect area 1 only) or
”, “FE
SS
/V
16
V
” or “FF
PRELIMINARY
Notice: This is not a final specification.
Some parametric limits are subject to change.
PP
SS
(Note)
(Note)
SS
16
16
/V
”.
”, “FE
PP
Approx. 5kΩ
The shortest
The shortest
16
16
) when writing to the
” and “FF
16
” for protect
16
” can not