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