參數(shù)資料
型號： M37753M8C-XXXFP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP80
封裝： PLASTIC, QFP-80
文件頁數(shù)： 70/110頁
文件大小： 1439K
代理商： M37753M8C-XXXFP
61
MITSUBISHI MICROCOMPUTERS
M37753M8C-XXXFP, M37753M8C-XXXHP
M37753S4CFP, M37753S4CHP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
RESET CIRCUIT
Reset is released when the RESET pin is returned to “H” level after
holding it at “L” level while the supply voltage is at 5V ±10%. As the
result, program execution starts at the address formed by setting the
address A23–A16 to 0016, A15–A8 to the contents of address FFFF16,
and A7–A0 to the contents of address FFFE16.
Figure 76 shows the status of the internal registers during reset.
Figure 77 shows an example of a reset circuit. When a stabilized
clock is input from the external to the oscillation circuit, the reset in-
put voltage must be held 0.9V or lower when the supply voltage
reaches 4.5V. When connecting a resonator to the oscillation circuit,
return the reset input voltage from “L” to “H” after the main-clock os-
cillation is fully stabilized
RESET
VCC
RESET
Power on
4.5V
0 V
0.9V
Fig. 77 Reset circuit example (perform careful evaluation at system
design before using)
INPUT/OUTPUT PINS
Ports P0 to P8 all have the direction register and each bit can be pro-
grammed for input or output. A pin becomes an output pin when the
corresponding bit of direction register is “1”, and an input pin when it
is “0”.
When a pin is programmed for output, the data is written to its port
latch and it is output to the output pin. When a pin is programmed for
output, the contents of the port latch is read instead of the value of
the pin. Accordingly, a previously output value can be read correctly
even when the output “H” voltage is lowered or the output “L” voltage
is raised owing to an external load and others.
A pin programmed as an input pin is floating, and the value input to
the pin can be read. When a pin is programmed as an input pin, the
data is written only in the port latch and the pin remains floating.
Additionally, ports P54 to P57, P80 include pull-up transistors. The
pull-up function of ports is selected with bits 7 and 6 of the particular
function select register 1. Refer to the section on Interrupts for the
pull-up function.
Figures 78 and 79 show block diagrams of ports P0 to P80 in the
single-chip mode and E output.
Ports P0 to P4 are also used as pins of address, data and control
signals. Refer to the section on Processor mode for more details.
相關(guān)PDF資料
PDF描述
M37753S4CFP 16-BIT, 40 MHz, MICROCONTROLLER, PQFP80
M37753S4CFP 16-BIT, 40 MHz, MICROCONTROLLER, PQFP80
M37753M8C-XXXHP 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP80
M37754M6C-XXXGP 16-BIT, MROM, 40 MHz, MICROCONTROLLER, PQFP100
M37795STJ 16-BIT, 8 MHz, MICROCONTROLLER, PQCC84
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37753M8C-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M37753S4CFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M37753S4CHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER
M37754 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16BIT CMOS MICROCOMPUTER
M37754FFCGP 制造商:MITSUBISHI 制造商全稱:Mitsubishi Electric Semiconductor 功能描述:SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
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