Document
Semic
CS16312EN
VFD
CS16312EN 1/4 1/11 65
CS16312EN
VFD Vacuum Fluorescent Display VCD DVD
11
OSC VSS LED1 LED2 LED3 LED4 VDD GD1 GD2 GD3 GD4
l l l l l LED l l
l l
11 11 64
8 VDD 35V MAX 4 20mA
4bit P
16
4
CLK STB DIN DOUT QFP44
SW1 SW2 SW3 SW4 DOUT DIN VSS CLK STB KEY1 KEY2
44 43 42 41 40 39 38 37 36 35 34
1 33
2 32
3 31
4 30
5 29
6
CS16312EN
28
7 27
8 26
9 25
10 24
11 23 12 13 14 15 16 17 18 19 20 21 22
GD5 GD6 SG16/GD7 SG15/GD8 SG14/GD9 SG13GD10 VEE SG12/GD11 SG11 SG10 SG9
KEY3 KEY4 VDD
SK1 SK2 SK3 SK4 SK5 SK6 SG7 SG8
6 DIN 5 DOUT
9 STB
8 44 15 20 21 25 37 32
26 28 31
42 39 10 13 14 14 38 7 43
27
CLK OSC SK1 SK6 SG7 SG11 GD1 GD6 SG12/GD11 SG16/GD7 LED1 LED4 KEY1 KEY4 SW1 SW4 VDD VSS VEE
STB STB
( () ()
() LED
CMOS
20mA
5V 10%
4
VDD 35V
N CS16312EN
CLK
)
1.1 2002-01-25
1 11
CS16312EN
1. RAM RAM
SG1 SG4
SG8
SG12
00HL
00HV
01HL
02HL
02HV
03HL
04HL
04HV
05HL
06HL
06HV
07HL
08HL
08HV
09HL
0AHL
0AHV
0BHL
0CHL
0CHV
0DHL
0EHL
0EHV
0FHL
10HL
10HV
11HL
12HL
12HV
13HL
14HL
14HV
15HL
2. RAM 64
KEY1
KEY2
KEY3
KEY4
SG16 01HV 03HV 05HV 07HV 09HV 0BHV 0DHV 0FHV 11HV 13HV 15HV
GD1 GD2 GD3 GD4 GD5 GD6 GD7 GD8 GD9 GD10 GD11
(8 )
XXHL 4
XXHV 4
KEY1 KEY4 SK1 SK3 SK5
b0 b3
KEY1 KEY4 SK2 SK4 SK6
b4 b7
SK1 SK2 SK3 SK4 SK5 SK6
2 11
3. LED
LED
1 5
LED LED 8
LED 0
4. SW
SW SW
5 0
8
5. VFD
/ 5.1.
CS16312EN
CS16312EN
MSB LED
LSB b3 b2 b1 b0
LED1 LED2 LED3 LED4
MSB
LSB
0 0 0 0 b3 b2 b1 b0
SW1 SW2 SW3 SW4
STB / STB
DIN CS16312EN
1/4 1/11
11 16
MSB 00
LSB b2 b1 b0
11 11
000 4 16 001 5 16 010 6 16 011 7 15 100 8 14 101 9 13 110 10 12 111 11 11
3 11
5.2.
MSB 01
CS16312EN
LSB b3 b2 b1 b0
00 01 LED 10 11 SW
0 1
0 1
5.3.
MSB 11
LSB b4 b3 b2 b1 b0
16H 00H 5.4. MSB
10
(00H 15H)
LSB b3 b2 b1 b0
000 1/16 001 2/16 010 4/16 011 10/16 100 11/16 101 12/16 110 13/16 111 14/16
/ 0 1 1/16
4 11
CS16312EN
6.
T DISP 500 s
DIG1 DIG2 DIG3
DIGn
G1
1/16
G2 T DISP
G3
Gn
7. (
STB
1 =T DISP (n+1)
1 64
)
DIG1
RAM
D IN
CLK
(
STB
)
b0 b1 b2 123
b6 b7 78
D IN CLK D OUT
b0 b1 b2 b3 b4 b5 b6 b7
1234
5
6
7
8 t WAIT
1
2
3
4
56
b0 b1 b2 b3 b4 b5
DOUT N l
1kΩ 10kΩ Twait=1µs
5 11
CS16312EN
1.
VFD LED VFD
* Ta 25 2.
Ta 25 TSS 0V
VDD VEE VI1 VO2 IO1
IO2
PD Topt Tstg
6.4mW/
Ta 20 70 VSS 0V
0.5 7.0 VDD 0.5 VDD 40
0.5 VDD 0.5 VEE 0.5 VDD 0.5
25 40 grid 15 segment
800* 40 85 65 150
VDD 4.5 VIH 0.7VDD VIL 0 VEE 0
5
5.5 VDD 0.3VDD VDD 35
PMAX VFD 3mA
RL 15mA
LED LED
VFD 6 / 1
RL LED
VDD VEE 2/50
1 mW
LED 20 mW
VDD 5 mW
20mA 30 mW
VEE VFD RL LED
25V VDD 5V 16
6
16 6 6 7 30 122mW
=302/50 17 306mW
4 20 80mW
5 5 25mW
533mW
V V V V
V V V V MA
MA
mW
6 11
CS16312EN
1. Ta 20 70 VDD 4.5 5.5V VSS 0V VEE VDD 35V
VOH1 VOL1 VOL2
IOH21
0.9VDD 3
IOH22
IOLEAK RL II VIH VIL VH
IDDdyn
15 50 0.7VDD
100 0.35
V 1V 0.4 V
mA
10 150
1
0.3VDD
5
mA
µA kΩ µA V V V mA
LED1 LED4 IOH1 1mA LED1 LED4 IOL1 20mA
DOUT IOL2 4mA VO VDD 2V,
SK1 SK6 SG7 SK11 VO VDD 2V,
GD1 GD6,SG12 SG16 VO VDD 35V
VI VDD VSS
CLK DIN STB
2. Ta 20 70 VDD 4.5 5.5V VEE 30V
fosc 350 500 650 kHz tPLZ 300 ns tPZL 100 ns
R 51kΩ
CLK DOUT CL 15pF RL=10kΩ
tTZH1
tTZH2 tTHZ fmax CI
1
2 µs
SK1 SK6 SG7 SG11
CL=300pF 0.5 µs
GD1 GD6 SG12 SG16
120 µs
CL 300Pf SGn GDn
MHz 50%
15 pF
7 11
CS16312EN
3. Ta 20 70 VDD 4.5 5.5V
PWCLK PWSTB tSETUP tHOLD tCLK-STB tWAIT
400 1 100 100 1 1
fOSC
ns µs ns ns µs CLK STB µs CLK CLK
OSC
STB
PWCLK PWCLK
t CLK-STB
PWSTB
tSETUP tHOLD
DIN
t PLZ
tPLZ
DOUT
tTHZ
tTHZ
Sn/Gn
90% 10%
1. 1.1.
STB
CLK
DIN 1 2 3 1-n 4
1231 22
n4
8 11
1.2. STB
CLK
DIN 1 2
CS16312EN
2.
VDD
SW
VDD R2
R3 LED
LED1 LED2 LED3 LED4 SW1 SW2 SW3 SW4
R1
SERIES PORT
+5V C
0V -30V
OSC
DOUT DIN CLK STB VDD
CS16312EN
VSS VE GD1 GD6 SG7 SG16
SK6
KEY1 KEY2 KEY3 KEY4
SK1
R4
6 10
VFD
6
4 (6 4)
=
VF POWER
VF
VF POWER
9 11
CS16312EN
31 30 29 28 27 26 25 32 24 33 Y 23
34 22 35 21
36 20 37 19 38 X 18
(0,0) 39 17
40 CS16312EN 16
41 15
42 14 43 13 44 12
1 2 3 4 5 6 7 8 9 10 11
3.98mm×4.592mm
VDD
µm
XY
XY
1
SW1
−839
−1590
23
SG9
1279
1325
2
SW2
−659
−1590
24
SG10
1279
1512
3
SW3
−479
−1590
25
SG11
867 1584
4
SW4
−299
−1590
26
SD12
608 1584
5
DOUT
−119
−1590
27
VEE 371 1584
6
DIN
61 −1590
28
SG13
123 1584
7
VSS
241 −1590
29
SG14
−131
1584
8
CLK
421 −1590
30
SG15
−397
1584
9
STB
601 −1590
31
SG16
−652
1584
10
KEY1
781 −1590
32
GD6
−1279
1500
11
KEY2
961 −1590
33
GD5
−1279
1245
12
KEY3
1284
−1219
34
GD4
−1279
980
13
KEY4
1284
−1039
35
GD3
−1279
725
14
VDD
1279
−714
36
GD2
−1279
460
15
SK1
1279
−451
37
GD1
−1279
205
16
SK2
1279
−264
38
VDD
−1279
−49
17
SK3
1279
−7
39
LED4
−1279
−229
18
SK4
1279
180
40
LED3
−1279
−420
19
SK5
1279
437
41
LED2
−1279
−601
20
SK6
1279
624
42
LED1
−1279
−792
21
SG7
1279
881
43
VSS −1279 −1021
22
SG8
1279
1068
44
OSC −1279 −1267
10 11.