參數(shù)資料
型號: M37542F8SP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP32
封裝: 8.9 X 28 MM, 1.78 MM PITCH, PLASTIC, SDIP-32
文件頁數(shù): 118/124頁
文件大?。?/td> 1238K
代理商: M37542F8SP
7542 Group
Rev.3.03
Jul 11, 2008
Page 91 of 117
REJ03B0006-0303
Pin name
Signal name
I/O
VCC,VSS
Power supply
I
CNVSS
I
RESET
Reset input
I
XIN
Clock input
I
XOUT
Clock output
O
VREF
Reference voltage input
I
P00–P03
I/O port P0
I/O
P04
RxD input
I
P05
TxD output
O
P06
SCLK input
I
P07
BUSY output
O
P10–P14
I/O port P1
I/O
P20–P27
I/O port P2
I/O
P30, P31, P33–P36
I/O port P3
I/O
P32
CE input
I
P37
RP input
I
(2) Standard serial I/O mode 2
Table 14 Description of pin function (standard serial I/O mode 2)
Function
Apply 2.7 to 5.5 V to the Vcc pin and 0 V to the Vss pin.
After input of port is set, input “H” level.
Reset input pin. System operates when RESET pin is set to “H” level after
CNVss pin is set to “H” level.
Connect an oscillation circuit between the XIN and XOUT pins.
As for the connection method, refer to the “clock generating circuit”.
(When system operates only by the on-chip oscillator, an external circuit is not
required.)
Apply reference voltage of A/D to this pin.
Input “L” or “H” level, or keep open.
Serial data input pin.
Serial data output pin.
Input “L” level.
BUSY signal output pin.
Input “L” or “H” level, or keep open.
Input “H” level.
Input “L” level.
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