MSC1215-XX OKI [OKI electronic componets], MSC1215-XX Datasheet - Page 2

• Manufacturer Part Number: MSC1215-XX
• Description: 17 x 2 Duplex Driver with Dimming, Keyscan and A/D Converter Function
• Manufacturer: OKI [OKI electronic componets]

¡ Semiconductor
BLOCK DIAGRAM
DATA I/O
OSC0
OSC1
GND
V
CLOCK
CS
VD
VK
DD
PWMOUT
Read Enable
"H"at SW2 ON
SW2
SW1
Regulator
Decoder
OSC
D/A
De-glitch
SI
Timing
L
Row
Latch
4-bit
+
Set
-
P. O. R
5V
4
4
12-bit Presetable S/R
Generator
Timing
3 2 1
L
MUX
S
PWM detector
Timing Generator
With 100kW pull-up resistor
4
4
Logarithm Counter
Select
L
D bit34
SEG1
L
S
17 Segment VF Tube Driver
Col
4
4
34Æ17 Segment Control
Detector
Latch
R
34-bit Shift Register
bit 34-18
(Grid2)
4
34-bit Latch
out
Look up table
PE
3 2 1
PWM
V
REF
CH1
CH2
CH3
CH4
CH5
CH6
SEG17
SW3
bit 17-1
(Grid1)
bit1
Pre-driver
Grid
6-bit dig. comp.
V
Channel
Select
REF
3-bit
Latch
S/R
3-bit
+
-
Select
Mode
Test
6ch 6-bit
& Logic
A/D
Generator
SW1 (VF Data)
SW2 (Keyscan)
SW3 (A/D)
Timing
"H" at SW3 ON
Read Eable
Test1-8
MSC1215-xx
to PWM OUT
PE
36-bit
S/R
GRID1
GRID2
2/22
O