参数资料
型号: M38D29FFFP
元件分类: 微控制器/微处理器
英文描述: 8-BIT, FLASH, 6.25 MHz, MICROCONTROLLER, PQFP64
封装: 14 X 14 MM, 0.80 MM PITCH, PLASTIC, LQFP-64
文件页数: 120/136页
文件大小: 2856K
代理商: M38D29FFFP
Rev.3.02
Apr 10, 2008
Page 84 of 131
REJ03B0177-0302
38D2 Group
Table 19 Description of pin function (Flash Memory Standard Serial I/O Mode 1)
Pin name
Signal name
I/O
Function
VCC,VSS
Power supply
I
Apply 2.7 to 5.5 V to the VCC pin and 0 V to the Vss pin.
CNVSS
I
After input of port is set, input “H” level.
RESET
Reset input
I
Reset input pin. To reset the microcomputer, RESET pin should be
held at an “L” level for 16 cycles or more of XIN.
XIN
Clock input
I
Connect an oscillation circuit between the XIN and XOUT pins.
As for the connection method, refer to the “clock generating circuit”.
XOUT
Clock output
O
AVSS
Analog power supply input
Connect AVss to VSS.
VREF
Reference voltage input
I
Apply reference voltage of A/D convertor to this pin.
P00
P07, P10P17,
P20
P27, P34P37,
P40
P47, P50P57,
P60
P62
I/O port
I/O
Input “L” or “H” level, or keep open.
P33
RxD input
I
Serial data input pin.
P32
TxD output
O
Serial data output pin.
P31
SCLK input
I
Serial clock input pin.
P30
BUSY output
O
BUSY signal output pin.
Table 20 Description of pin function (Flash Memory Standard Serial I/O Mode 2)
Pin name
Signal name
I/O
Function
VCC,VSS
Power supply
I
Apply 2.7 to 5.5 V to the Vcc pin and 0 V to the VSS pin.
CNVSS
I
After input of port is set, input “H” level.
RESET
Reset input
I
Reset input pin. To reset the microcomputer, RESET pin should be
held at an “L” level for 16 cycles or more of XIN.
XIN
Clock input
I
Connect an oscillation circuit between the XIN and XOUT pins.
As for the connection method, refer to the “clock generating circuit”.
XOUT
Clock output
O
AVSS
Analog power supply input
Connect AVss to VSS.
VREF
Reference voltage input
I
Apply reference voltage of A/D convertor to this pin.
P00
P07, P10P17,
P20
P27, P34P37,
P40
P47, P50P57,
P60
P62
I/O port
I/O
Input “L” or “H” level, or keep open.
P33
RxD input
I
Serial data input pin.
P32
TxD output
O
Serial data output pin.
P31
SCLK input
I
Input “L” level.
P30
BUSY output
O
BUSY signal output pin.
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