參數(shù)資料
型號(hào)： UPD75P116CW
元件分類： 微控制器/微處理器
英文描述： 4-BIT, OTPROM, MICROCONTROLLER, PDIP64
封裝： 0.750 INCH, SHRINK, PLASTIC, DIP-64
文件頁(yè)數(shù)： 2/32頁(yè)
文件大?。?/td> 286K
代理商： UPD75P116CW
10
PD75P116
1.4
RECOMMENDED CONNECTION OF
PD75P116 UNUSED PINS
Pin
PTH00 to PTH03
TI0
TI1
P00
P01 to P03
P10 to P13
P20 to P23
P30 to P33
P40 to P43
P50 to P53
P60 to P63
P70 to P73
P80 to P83
P90 to P93
P120 to P123
P130 to P133
P140 to P143
Recommended Connection
Connect to VSS or VDD.
Connect to VSS.
Connect to VSS or VDD.
Connect to VSS.
Input status
: Connect to VSS or VDD.
Output status
: Leave open.
VDD
P00/INT4, RESET
1.5
NOTES ON USING P00/INT4 PIN AND RESET PIN
The P00/INT4 and RESET pins have a test mode setting function (for IC test) which tests internal operations of
pin of the
PD75P116 in addition to those functions given in 1.1 and 1.2.
The test mode is set when voltage greater than VDD is applied to either pin. Therefore, even during normal
operation, the test mode is engaged when noise greater than VDD is added, thus causing interference with normal
operation.
For example, this problem may occur if the P00/INT4 and RESET pins wiring is too long, causing line noise.
To avoid this, try to suppress line noise in wiring. If line noise is still high, try elimminating the noise using the
exterior add-on components shown in the Figures below.
q
Connect a Diode with Low VF (0.3 V max.)
Between the VDD and the Pin.
q
Connect a Capacitor Between
the VDD and the Pin.
VDD
P00/INT4, RESET
Diode with
low VF
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