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| 型號： | M306V8FJFP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP116 |
| 封裝： | 20 X 20 MM, 0.65 MM PITCH, PLASTIC, LQFP-116 |
| 文件頁數(shù)： | 76/77頁 |
| 文件大小： | 2650K |
| 代理商： | M306V8FJFP |
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M306V8FJFP
Rev.1.31
Apr 18, 2005
page 6 of 363
REJ03B0082-0131
VCC1, VCC2,
VCC3, VSS
CNVSS1,
CNVSS2
XIN
XOUT
BYTE
P00 to P07
D0 to D7
P10 to P17
D8 to D15
P20 to P27
A0 to A7
A0/D0 to
A7/D7
A0
A1/D0 to
A7/D6
P30 to P37
A8 to A15
A8/D7,
A9 to A15
P40 to P47
Signal name
Power supply
input
Reset input
Clock input
Clock output
External data
bus width
select input
I/O port P0
I/O port P1
I/O port P2
I/O port P3
I/O port P4
Function
CNVSS1 pin switches between processor modes. Connect this pin
to VSS pin when after a reset you want to start operation in single-
chip mode (memory expansion mode) or the VCC1 pin when
starting operation in microprocessor mode. Always connect
CNVSS2 pin to VSS.
“L” on this input resets the microcomputer.
These pins are provided for the main clock generating circuit input/
output. Connect a ceramic resonator or crystal between the XIN
and the XOUT pins. T o use an externally derived clock, input it to
the XIN pin and leave the XOUT pin open.
This pin selects the width of an external data bus. A 16-bit width is
selected when this input is “L”; an 8-bit width is selected when this
input is “H”. This input must be fixed to either “H” or “L”. Connect
this pin to the VSS pin when operating in single-chip mode.
This is an 8-bit CMOS I/O port. This port has an I/O select direction
register, allowing each pin in that port to be directed for input or
output individually.
If any port is set for input, selection can be made for it in a program
whether or not to have a pull-up resistor in 4 bit units. This selection
is unavailable in memory extension and microprocessor modes.
This port can function as input pins for the A/D converter when so
selected in a program.
When set as a separate bus, these pins input and output data (D0
–D7).
This is an 8-bit I/O port equivalent to P0. P15 also function as INT
interrupt input pins as selected by a program.
When set as a separate bus, these pins input and output data (D8
–D15).
This is an 8-bit I/O port equivalent to P0. This port can function as
input pins for the A/D converter when so selected in a program.
These pins output 8 low-order address bits (A0 to A7).
If the external bus is set as an 8-bit wide multiplexed bus, these
pins input and output data (D0 to D7) and output 8 low-order
address bits (A0 to A7) separated in time by multiplexing.
If the external bus is set as a 16-bit wide multiplexed bus, these
pins input and output data (D0 to D6) and output address (A1 to A7)
separated in time by multiplexing. They also output address (A 0).
This is an 8-bit I/O port equivalent to P0.
These pins output 8 middle-order address bits (A8 to A15).
If the external bus is set as a 16-bit wide multiplexed bus, these
pins input and output data (D7) and output address (A8)
separated in time by multiplexing. They also output address (A 9
to A15).
This is an 8-bit I/O port equivalent to P0.
Pin name
Input
Output
Input
I/O
I/O type
I/O
Output
I/O
Output
I/O
Output
I/O
Output
I/O
Output
A16 to A19,
CS0 to CS3
These pins output A16 to A19 and CS0 to CS3 signals. A16 to A19
are 4 high- order address bits. CS0 to CS3 are chip select signals
used to specify an access space.
RESET
Power supply
VCC
CNVSS1/
CNVSS2
Apply 3.3 V to the VCC1, VCC2 and VCC3 pins and 0 V to the VSSpin. (Note 1)
Insert a bypass capacitor between power supply and GND. (Note 2)
Table 1.3. Pin Description (1)
Notes 1: In this manual, hereafter, VCC
refers to VCC1 unless otherwise
noted.
2: Insert capacitors between each
power supply pin and GND to
prevent errors or latch-up by
noise.
Also, use thick and shortest
possible wiring to connect ca-
pacitors.
Pin Description
VCC1
VCC2
C3
C2
C1
VCC3
VSS
C1 0.1
F, C2 0.1F, C3 0.1F (reference value)
=>
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