參數(shù)資料
型號(hào)： M37920F8MHP
元件分類： 微控制器/微處理器
英文描述： 16-BIT, FLASH, 26 MHz, MICROCONTROLLER, PQFP100
封裝： 14 X 14 MM, 0.50 MM PITCH, PLASTIC, LQFP-100
文件頁(yè)數(shù)： 34/37頁(yè)
文件大?。?/td> 535K
代理商： M37920F8MHP
PRELIMINAR
Y
Notice:
This
is not
a final
specification.
Some
parametric
limits
are
subject
to change.
M37920F8MHP, M37920FCMHP, M37920FGMHP
SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER FLASH MEMORY VERSION
MITSUBISHI MICROCOMPUTERS
6
Vcc, Vss
MD0
MD1
RESET
XIN
XOUT
BYTE
AVcc,
AVss
VREF
P00–P07
P10–P17
P20–P27
P30–P33
P40–P44
Power supply input
MD0
MD1
Reset input
Clock input
Clock output
External data bus width
select input
Analog power supply input
Reference voltage input
I/O port P0
I/O port P1
I/O port P2
I/O port P3
I/O port P4
—
Input
Output
Input
—
Input
I/O
Apply 5 V±0.5 V to Vcc, and 0 V to Vss.
This pin controls the processor mode. Connect this pin to VSS for the single-chip
mode or memory expansion mode, and VCC for the microprocessor mode.
Connect this pin to Vss.
The microcomputer is reset when “L” level is applies to this pin.
These are input and output pins of the internal clock generating circuit. Connect a
ceramic or quartz- crystal resonator between the XIN and XOUT pins. When an
external clock is used, the clock source should be connected to the XIN pin, and the
XOUT pin should be left open.
This pin determines whether the external data bus has an 8-bit width or 16-bit width
for the memory expansion mode or microprocessor mode. The width is 16 bits when
“L” signal is input, and 8 bits when “H” signal is input.
Power supply input pin for the A-D converter. Connect AVcc to Vcc, and AVss to Vss
externally.
This is the reference voltage input pin for the A-D converter.
s In single-chip mode
Port P0 is an 8-bit I/O port. This port has an I/O direction register, and each pin
can be programmed for input or output. These pins enter the input mode at
reset.
s In memory expansion and microprocessor modes
Address (A16–A23) is output. In DRAM space is accessed, Multiplexed address
(MA8–MA11) is output.
s In single-chip mode
These pins have the same functions as port P0.
s In memory expansion and microprocessor modes
The low-order 8 bits of data (D0–D7) are input/output.
s In single-chip mode or when 8-bit external data bus is used with “H” level applied
to pin BYTE in memory expansion or microprocessor mode
These pins have the same functions as port P0.
s When the 16-bit external data bus is used with “L” level applied to pin BYTE in
memory expansion or microprocessor mode
The high-order 8 bits of data (D8–D15) are input or output.
s In single-chip mode
These pins have the same functions as port P0.
s In memory expansion mode
P30 functions as an I/O port pin. According to the register setting, this pin funtions
as an output pin of RDY. P31, P32, P33 funtion as output pins of RD, BLW, BHW,
respectively.
s In microprocessor mode
P30 functions as an input pin of RDY; and P31, P32, P33 function as output pins of
RD, BLW, BHW, respectively.
s In single-chip mode
These pins have the same functions as port P0. P42 also funtions as pin TC.
s In memory expansion mode
P40–P44 function as I/O port pins. According to the register setting, these pins
function as output pins or input pins of ALE,
φ1, TC, HOLD, HLDA, respectively.
s In microprocessor mode
P40 and P41 function as outpout pins of ALE,
φ1. According to the register setting,
these pins also funtion as I/O port pins. P42 funtions as an I/O port pin. Accord-
ing to the register setting, this pin also funtions as pin TC. P43 functions as an in-
put pin of HOLD, and P44 functions as an output pin of HLDA.
PIN DESCRIPTION (MICROCOMPUTER MODE)
Functions
Input/
Output
Name
Pin
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