E2C0034-27-Y5
¡ Semiconductor
MSC1162A
¡ Semiconductor
40-Bit Vacuum Fluorescent Display Tube Grid/Anode Driver
This version: Nov. 1997
MSC1162A
Previous version: Jul. 1996
GENERAL DESCRIPTION
The MSC1162A is a monolithic IC designed for directly driving the grid and anode of the vacuum
fluorescent display tube. The device contains a 40-bit bidirectional shift register, a 40-bit latch
circuit, and 40-output circuit on a single chip.
Display data is serially stored in the shift register at the rising edge of a clock pulse.
Setting the
CL
pin low allows all the driver outputs to be driven low, which makes it possible to
set the display blanking.
Also, setting both of the
CL
and CHG pins high allows all the driver outputs to be driven high,
which provides the easy testing of all lights after final assembly of a VFD tube panel.
The MSC1162A is compatible with the MSC1162.
FEATURES
• Logic Supply Voltage (V
CC
) : 5V
• Driver Supply Voltage (V
HV
): 65V
• Driver Output Current
I
OHVH1
(Only one driver output : "H") : –40mA
I
OHVH2
(All the driver outputs : "H") : –2mA
I
OHVL
:1mA
• Directly connected to VFD tube without pull-down resistors
• Data Transfer Speed: 4MHz
• Package :
60-pin plastic SSOP (SSOP60-P-700-0.65-BK) (Product name : MSC1162AGS-BK)
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MSC1162A
BLOCK DIAGRAM
V
HV
V
CC
V
CC
CL
CHG
LS
DIN
CLK
C
SI
HVO1
PO1
I-1
O-1
HVO2
PO2
40-Bit Bi-
directional
Shift
Register
I-2
O-2
40-Bit
Latch
HVO40
PO40
GND1
GND2
SO
DOUT
I-40
O-40
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¡ Semiconductor
MSC1162A
INPUT AND OUTPUT CONFIGURATION
Schematic Diagrams of Logic portion Input/Output Circuits and Driver Output Circuits
Input Pin
V
CC
V
CC
INPUT
GND1
GND2
Output Pin
V
CC
V
CC
DOUT
GND2
GND1
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Driver Output Circuit
MSC1162A
V
HV
V
HV
Output
GND 1
GND 1
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PIN CONFIGURATION (TOP VIEW)
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
HVO
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
V
HV
GND 1
GND 2
CL
NC
LS
NC
R/L
DIN
V
CC
,
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
NC : No-connection pin
60-Pin Plastic SSOP
MSC1162A
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
HVO 40
HVO 39
HVO 38
HVO 37
HVO 36
HVO 35
HVO 34
HVO 33
HVO 32
HVO 31
HVO 30
HVO 29
HVO 28
HVO 27
HVO 26
HVO 25
HVO 24
HVO 23
HVO 22
HVO 21
V
HV
GND 1
GND 2
NC
CHG
NC
CLK
NC
DOUT
V
CC
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