参数资料
型号: MB89PV820CF
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 5 MHz, MICROCONTROLLER, PQFP80
封装: CERAMIC, MQFP-80
文件页数: 37/37页
文件大小: 402K
代理商: MB89PV820CF
MB89820 Series
9
External EPROM pins (MB89PV820 only)
Pin no.
Pin name
I/O
Function
82
VPP
O
“H” level output pin
83
84
85
86
87
88
89
90
91
A12
A7
A6
A5
A4
A3
A2
A1
A0
O
Address output pins
93
94
95
O1
O2
O3
I
Data input pins
96
VSS
O
Power supply (GND) pin
98
99
100
101
102
O4
O5
O6
O7
O8
I
Data input pins
103
CE
O
ROM chip enable pin
Outputs “H” during standby.
104
A10
O
Address output pin
105
OE
O
ROM output enable pin
Outputs “L” at all times.
107
108
109
A11
A9
A8
O
Address output pins
110
A13
O
111
A14
O
112
VCC
O
EPROM power supply pin
81
92
97
106
N.C.
Internally connected pins
Be sure to leave them open.
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