参数资料
型号: M34509G4FP
元件分类: 微控制器/微处理器
英文描述: 4-BIT, OTPROM, 6 MHz, MICROCONTROLLER, PDSO24
封装: 5.30 X 10.10 MM, 0.80 MM PITCH, PLASTIC, SSOP-24
文件页数: 104/145页
文件大小: 1060K
代理商: M34509G4FP
4509 Group
Rev.1.03
2009.07.27
page 59 of 140
REJ03B0147-0103
QzROM Writing Mode
In the QzROM writing mode, the user ROM area can be rewritten
while the microcomputer is mounted on-board by using a serial pro-
grammer which is applicable for this microcomputer.
Table 24 lists the pin description (QzROM writing mode) and Figure
55 shows the pin connections.
Refer to Figure 56 for examples of a connection with a serial pro-
grammer.
Contact the manufacturer of your serial programmer for serial pro-
grammer. Refer to the user’s manual of your serial programmer for
details on how to use it.
Table 24 Pin description (QzROM writing mode)
Power supply voltage pin.
GND pin.
QzROM programmable power source pin.
VPP input is possible with VSS connected via a resistor of about 5 k.
QzROM serial data I/O pin.
QzROM serial clock input pin.
QzROM read/program pulse input pin.
Reset input pin.
Input “L” level signal.
Either connect an oscillation circuit or connect XIN pin to VSS and leave the
XOUT pin open.
Input “H” or “L” level signal or leave the pin open.
VDD
VSS
CNVSS
P20/AIN0
P21/AIN1
D3/AIN5
____________
RESET
XIN
XOUT
D0, D1, D2/AIN4, D4, D5,
P00/SIN, P01/SOUT,
P02/SCK, P03, P10,
P11/CNTR1,
P12/CNTR0, P13/INT,
P30/AIN2, P31/AIN3
Power source
GND
VPP input
SDA input/output
SCLK input
________
PGM input
Reset input
Clock input
Clock output
I/O port
Function
Pin
Name
I/O
Input
I/O
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