ra8835a RAIO Technology Inc., ra8835a Datasheet - Page 7

• Manufacturer Part Number: ra8835a
• Description: Dot Matrix Lcd Controller
• Manufacturer: RAIO Technology Inc.

4. Package
5. Pin Descriptions
RAiO TECHNOLOGY INC.
Version 1.0
VDD
XD
CS
A0
D0
D1
D2
D3
D4
D5
D6
5-1 Pin Functions
Figure 4-1: RA8835AP3N(QFP-60 Pin)
5-1-1 MCU Interface
60
1
5
Index
6
D0 to D7
Name
SEL1,
RAiO
SEL2
Pin
RD
50
RA8835AP3N
or
Date Code(Year 2007)
E
10
07xx
MCU Data Bus.
Tristate input/output pins. Connect these pins to an 8- or 16-bit microprocessor bus.
MCU Interface Select.
The RA8835A series supports both 8080 family processors (such as the 8085 and
Z80®) and 6800 family processors (such as the 6802 and 6809).
SEL1 should be tied directly to VDD or VSS to prevent noise. If noise does appear on
SEL1, decouple it to ground using a capacitor placed as close to the pin as possible.
Read Control or Enable.
When the 8080 family interface is selected, this signal acts as the active-LOW read
strobe. The RA8835A series output buffers are enabled when this signal is active.
When the 6800 family interface is selected, this signal acts as the active-HIGH
enable clock.
Data is read from or written to the RA8835A series when this clock goes HIGH.
TM
45
SEL1
15
0
1
40
20
SEL2*
0
0
35
30
29
25
8080 family
6800 family
Interface
VA8
VA9
VA10
VA11
VA12
VA13
NC
VA14
VA15
VD0
VD1
VD2
7/88
VA15
VA14
VA13
VA12
VA11
VA10
Function
VD3
VD2
VD1
VD0
VA9
VA8
VA7
VA6
NC
Figure 4-2: RA8835AP4N (TQFP-60 Pin)
A0
A0
A0
46
60
45
1
Index
RAiO
RA8835AP4N
RD
RD
E
Date Code(Year 2007)
Dot Matrix LCD Controller
07xx
TM
R/ W
WR
WR
RA8835A
www.raio.com.tw
31
15
30
16
CS
CS
CS
XD3
D7
D6
D5
D4
D3
D2
D1
D0
VDD
A0
CS
XD
XG
SEL1