SDA30C163-2 查看數據表（PDF） - Infineon Technologies
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SDA30C163-2 Datasheet PDF : 60 Pages
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SDA 30C163-2
Pin Definitions and Functions (cont’d)
Pin No.
46
47
27
Symbol
P4.0
P4.1
XTAL2
Input (I)
Output (O)
Supply (S)
I/O
I/O
O
Function
Alternative outputs for port 2 quasi-bidirectional I/O or
address bits A17/A18 for memory extension.
Output of the inverting oscillator amplifier.
To drive the device from an external clock source, XTAL1
should be driven, while XTAL2 is left open.
26
XTAL1 I
28
RST
I
24
VDD
S
25
VSS
S
6
VAREF
S
4
VAGND
S
5
PSEN
45
ALE
3
A0
2
A1
1
A2
68
A3
67
A4
66
A5
65
A6
64
A7
63
A8
62
A9
61
A10
60
A11
59
A12
58
A13
57
A14
56
A15
7
A16
15
D0
14
D1
13
D2
12
D3
11
D4
10
D5
9
D6
8
D7
Input to the inverting oscillator amplifier.
A low level on this pin resets the processor.
Power supply voltage
Ground (0 V)
Analog reference voltage
Analog ground
Program Store Enable
Address Latch Enable
Address bus for external memory
Data bus for external memory
Semiconductor Group
11
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