M38D59GCHP#U0 Renesas Electronics America, M38D59GCHP#U0 Datasheet - Page 97

• Manufacturer Part Number: M38D59GCHP#U0
• Description: IC 740/38D5 MCU QZ-ROM 80LQFP
• Manufacturer: Renesas Electronics America
• Series: 740/38000r

Specifications of M38D59GCHP#U0

• Core Processor: 740
• Core Size: 8-Bit
• Speed: 12.5MHz
• Connectivity: SIO, UART/USART
• Peripherals: LCD, LED, PWM, WDT
• Number Of I /o: 59
• Program Memory Size: 48KB (48K x 8)
• Program Memory Type: QzROM
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -20°C ~ 85°C
• Package / Case: 80-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

38D5 Group
Rev.3.04
REJ03B0158-0304
NOTES ON FLASH MEMORY VERSION
CPU Rewrite Mode
(1) Operation speed
During CPU rewrite mode, set the system clock
less using the main clock division ratio selection bits (bits 6 and
7 of address 003B
(2) Instructions inhibited against use
The instructions which refer to the internal data of the flash
memory cannot be used during the CPU rewrite mode.
(3) Interrupts inhibited against use
The interrupts cannot be used during the CPU rewrite mode
because they refer to the internal data of the flash memory.
(4) Watchdog timer
In case of the watchdog timer has been running already, the
internal reset generated by watchdog timer underflow does not
happen, because of watchdog timer is always clearing during
program or erase operation.
(5) Reset
Reset is always valid. In case of CNV
released, boot mode is active. So the program starts from the
address contained in address FFFC
area.
CNV
The CNV
Connect the CNV
pattern which is supplied to the V
In addition connecting an approximately 5 k Ω . 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.
Note. When the boot mode or the standard serial I/O mode is used, a
Fig 90. Wiring for the CNV
SS
switch of the input level to the CNV
Pin
SS
Note 1: Shows the microcomputer’s pin.
pin determines the flash memory mode.
May 20, 2008 Page 95 of 134
16
SS
).
CNV
/V
PP
V
SS
SS
pin the shortest possible to the GND
(1)
(1)
SS
SS
16
pin of the microcomputer.
and FFFD
Approx. 5kΩ
SS
The shortest
The shortest
SS
pin is required.
= “H” when reset is
16
S S
in boot ROM
φ
4.0 MHz or
pin of the
N O T E S O N D I F F E R E N C E S B E T W E E N Q z R O M
VERSION AND FLASH MEMORY VERSION
The QzROM and flash memory versions differ in their
manufacturing processes, built-in ROM, and layout patterns.
Because of these differences, characteristic values, operation
margins, noise immunity, and noise radiation and oscillation
circuit constants may vary within the specified range of electrical
characteristics.
When switching to the QzROM version, implement system
evaluations equivalent to those performed in the flash memory
version.
Confirm page 11 about the differences of functions.