參數(shù)資料
型號(hào): M37517F8HP
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 4 MHz, MICROCONTROLLER, PQFP48
封裝: 7 X 7 MM, 0.50 MM PITCH, PLASTIC, LQFP-48
文件頁(yè)數(shù): 69/98頁(yè)
文件大?。?/td> 886K
代理商: M37517F8HP
Rev.1.01
Aug 02, 2004
page 71 of 96
7517 Group
Table 14 Description of pin function (Standard Serial I/O Mode)
Pin
Description
VCC, VSS
Apply program/erase protection voltage to Vcc pin and 0 V to Vss pin.
Name
Power input
I/O
CNVSS
Connect to VCC when VCC = 4.5 V to 5.5 V.
Connect to Vpp (=4.5 V to 5.5 V) when VCC = 2.7 V to 4.5 V.
RESET
Reset input pin. While reset is “L” level, a 20 cycle or longer clock
must be input to XIN pin.
XIN
Connect a ceramic resonator or crystal oscillator between XIN and
XOUT pins. To input an externally generated clock, input it to XIN pin
and open XOUT pin.
XOUT
CNVSS
Reset input
Clock input
Clock output
I
O
ADVREF
Enter the reference voltage for AD from this pin, or open.
P00 to P07
Input “H” or “L”, or open.
P10 to P17
Input “H” or “L”, or open.
P20 to P23
This pin is for serial data input.
AVSS
Connect AVSS to VSS .
Analog power supply input
AD reference voltage input
Input port P0
Input port P1
Input port P2
I
P41
Input “H” when RESET is released only.
P40, P42 to P45
P24
This pin is for serial data output.
P25
P26
This pin is for serial clock input.
P27
Input port P4
RxD input
TxD output
SCLK input
BUSY output
I
P30 to P35
Input port P3
I
O
Input “H” or “L”, or open.
This pin is for BUSY signal output.
Input “H” or “L”, or open.
Connect AVCC to VCC .
AVCC
Analog power supply input
I
ADVSS
Analog power supply input
Connect ADVSS to VSS .
ISENS0
ISENS1
Analog input
I
Connect the sense register. ISENS0 is connected the GND side.
I
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