Sharp DV-760X Service Manual page 40

DV-760X
11-18. IC5001 IMN12510F
Terminal Terminal Name
18 VDD
21 VSS
16 VPP
19 OSCI
20 OSCO
22 NCS
23 SCK
24 SDI
25 SDO
26~30 P30~P34
31~38 SEG0~SEG7
39~42 P10~P13
SEG8~SEG11
43, 44 P20~23
1, 2 DGT12/SEG15
DGT15/SEG12
3~6 P00~P03
DGT8~DGT11
7~10 DGT0~DGT7
12~15
• Block Diagram
FL DRIVER
Name In/Output
Power supply terminal
FLP driver power
Clock input
Clock output
Chip select input
Sirial clock input
Sirial data input
Sirial data output
Key scan input In/Output
High voltage resistance output
High voltage resistance output
High voltage resistance output In/Output
High voltage resistance output
High voltage resistance output
Timing generating
circuit
Shift Resistor
D G T ( 1 6 )
4 4
8
MPL
4
D0
D7D8 D11 DS12
(P53) (P32) (P20)
F L P
Input VDD: +5V±0.5V
VSS: 0V
Input VPP: VDD –35V
The voltage to be supplied to the SEG 0 to 7, DGT 0 to 7 pull-down
resistor is applied.
Input Oscillation input terminal
Oscillation output terminal
To OSCI in case of clock input from outside in case of separate excitation
Input "L": Serial input allowed
Input Serial transfer clock input
Input Sirial data input
The command data, address data, indication data, control register
data, and port output data are input.
Output Sirial data output
The key scan input data and port input data are output.
There are 5 bits. Bitwise selection of key scan input/general-use
input/general-use output is enabled. The pull-down resistor is pro
vided between this terminal and the VSS terminal.
The general-use output is large current output for LED drive.
Output 8-bit high voltage resistance output port. (Segment output)
The output type is Pch open drain. The pull-down resistor is built in
between this terminal and the VPP terminal.
Output 4-bit high voltage resistance output port.
Bitwise selection of general-use output/segment output is enabled.
The output type is Pch open drain.
4-bit high voltage resistance output port.
Bitwise selection of general-use input/general-use output/seg ment
output/digit output is enabled. The output type is Pch open drain.
Large current output for LED drive
Output 4-bit high voltage resistance output port.
Bitwise selection of general-use output/digit output is enabled.
The output type is Pch open drain.
Output 8-bit high voltage resistance output port. (Digit output)
The output type is Pch open drain. The pull-down resistor is built
in between this terminal and the VPP terminal.
S B ( 8 )
L A T C H ( 8 )
( 8 X 3 2 ) X 2
S E G ( 1 6 )
4 4 4 4 4
8
MPL MPL
4 4
DS15 S11 S8 S7 S0
(P23) (P13) (P10)
M A T R I X
11-24
Function
A terminal to which the ceramic
)
oscillation terminal is connected.
"H": Serial input inhibited
Comannding
Decoder
5 X 1 2
LATCH(5)
5
P34 P30
K E Y