7
LCD Connector
Alphanumeric 24 Characters x 2 lines LCD such as BiPOM's LCD242
(
http://www.bipom.com/periph_displays.shtm
) or any generic LCD display with 4-bit parallel interface
can be connected directly to MINI-MAX/51-C2.
LCD Connector (J3)
Signal
Pin
Pin
Signal
P0.7
14
13
P0.6
P0.5
12
11
P0.4
not connected
10
9
not connected
not connected
8
7
P0.3
P0.2
6
5
P0.1
P0.0
4
3
Vee
VCC (+5V)
2
1
GND
Table 3
Input/Output expansion bus
The 16 control pins and 5 Volt power supply pins are available on the 20-pin connector (J4) for
interfacing to existing peripheral boards. A peripheral board can be connected to MINI-MAX/51-C2
either as a piggyback daughter-board using standoffs or can be placed away from the MINI-MAX/51-C2
board using a 20-wire ribbon cable ( Part #: EXPCABLE-6 ). Table 4 shows the pin assignments for the
connector.
Input/Output Connector (J4)
Signal
Pin
Pin
Signal
P3.0
20
19
P3.1
P3.2
18
17
P3.3
P3.4
16
15
P3.5
P3.6
14
13
P3.7
P1.0
12
11
P1.1
P1.2
10
9
P1.3
P1.4
8
7
P1.5
P1.6
6
5
P1.7
VCC (+5V)
4
3
GND
VCC (+5V)
2
1
GND
Table 4
Содержание MINI-MAX/51-C2
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