Holtek HT16511 1/8 to 1/16 duty vfd controller Datasheet

HT16511
1/8 to 1/16 Duty VFD Controller
Features
· Logic voltage: 3.0V~5.5V
· 4-bit general purpose input port
· High-voltage output: VDD-35V max.
· No external resistors necessary for driver output
(provides PMOS open-drain and pull-low resistor
output)
· Multiple display
(12-segment & 16-digit to 20-segment & 8-digit)
· Serial interface with MCU (CLK, CS, DI, DO)
· 12´4 matrix key scanning
· 52-pin LQFP package
· 8 steps dimmer circuit
· 5 LED output ports (20mA max.)
Applications
· Consumer products panel function control
· Other similar application panel function control
· Industrial measuring instrument panel function control
General Description
Serial data inputs to the HT16511 through a three-line
serial interface. This VFD controller/driver is ideal as a
peripheral device for an MCU.
HT16511 is a VFD (Vacuum Fluorescent Display) controller/driver that is driven on a 1/8 to 1/16 duty factor. It
consists of 12 segment output lines, 8 grid output lines,
8 segment/grid output drive lines, 5 LED output ports, a
control circuit, a display memory, and a key scan circuit.
Block Diagram
C o m m a n d D e c o d e r
D I
D O
C L K
S e r ia l I/F
D is p la y R A M
2 0 - B it ´ 1 6 W o r d s
2 0 - B it
O u tp u t L a tc h
2 0
1 2
C S
O S C
O S C
T im in g G e n e r a to r
K e y S c a n
D a ta
S e le c to r
1 6 - B it
S h ift R e g is te r
K 0 ~ K 3
4 - B it
L a tc h
5 - B it L a tc h
M u ltip le x e d
D r iv e r
8
G r id
D r iv e r
8
S 1 /K 1 ~
S 1 2 /K 1 2
8
S 1 3 /G 1 6 ~
S 2 0 /G 6
8
8
1 6
G 1 ~ G 8
D im m in g C ir c u it
L E D 0 ~ L E D 4
Rev. 1.60
1 2
8
K e y D a ta R A M
(4 ´ 1 2 )
S W 0 ~ S W 3
S e g m e n t
D r iv e r
V D D
1
V S S
V E E
October 31, 2013
HT16511
Pin Assignment
L
L
L
L
L
G
G
G
G
G
V D
E D
E D
E D
E D
E D
V S
O S
D
C
S
5
4
0
1
2
3
4
2
1
3
S W 1
S W 2
S W 3
S W 4
D O
D I
N C
C L K
C S
K 0
K 1
K 2
K 3
5 2 5 1 5 0 4 9 4 8 4 7 4 6 4 5 4 4 4 3 4 2 4 1 4 0
1
3 9
2
3 8
3
3 7
4
3 6
5
3 5
6
H T 1 6 5 1 1
5 2 L Q F P -A
7
8
9
1 0
1 1
1 2
1 3
1 4 1 5 1 6 1 7 1 8 1 9 2 0 2 1 2 2 2 3 2 4 2 5 2 6
3 4
3 3
3 2
3 1
3 0
2 9
2 8
2 7
G 6
G 7
G 8
S 2
S 1
V E
V D
S 1
S 1
S 1
S 1
S 1
S 1
0 /G
9 /G
E
D
8 /G
7 /G
6 /G
5 /G
4 /G
3 /G
9
1 0
1 1
1 2
1 3
1 4
1 5
1 6
S 1 2 /K 1 2
S 1 1 /K 1 1
S 1 0 /K 1 0
S 9 /K 9
S 8 /K 8
S 7 /K 7
S 6 /K 6
S 5 /K 5
S 4 /K 4
S 3 /K 3
S 2 /K 2
S 1 /K 1
V D D
Pad Assignment
D I
C L K
4 7
4 6
4 4
4 5
4 3
4 2
4 1 4 0
3 9
3 8
1
S W 3
S W 4
D O
4 8
G 7
G 6
G 5
G 4
G 3
G 2
G 1
V D D
3
4 9
L E D 4
2
S W 2
5 0
L E D 3
V S S
O S C
S W 1
L E D 2
L E D 1
L E D 0
5 1
3 7
4
3 6
5
3 5
(0 , 0 )
6
3 4
7
3 3
8
3 2
C S
K 0
9
3 1
1 0
3 0
K 1
1 1
K 2
1 2
K 3
1 3
2 9
1 4
1 5
1 6 1 7
1 8 1 9
2 0
2 1 2 2
2 3
2 4
2 5 2 6
2 8
2 7
G 8
S 2
S 1
V E
V D
0 /G 9
9 /G 1 0
E
D
S 1
S 1
S 1
S 1
S 1
S 1
8 /G
7 /G
6 /G
5 /G
4 /G
3 /G
1 1
1 2
1 3
1 4
1 5
1 6
S 1 2 /K 1 2
S 1 1 /K 1 1
S 1 0 /K 1 0
S 9 /K 9
S 8 /K 8
S 7 /K 7
S 6 /K 6
S 5 /K 5
S 4 /K 4
S 3 /K 3
S 2 /K 2
S 1 /K 1
V D D
Chip Size: 1920 ´ 1599 (mm)2
* The IC substrate should be connected to VSS in the PCB layout artwork.
Rev. 1.60
2
October 31, 2013
HT16511
Pad Coordinates
Unit: mm
Pad No.
X
Y
Pad No.
X
Y
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
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-796.450
-590.150
-504.400
-419.400
-334.400
-249.400
-164.400
-79.400
5.600
90.600
175.600
260.600
345.600
430.600
472.350
380.350
284.350
192.350
96.350
4.350
-91.650
-183.650
-279.650
-371.650
-467.650
-559.650
-655.650
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
-570.250
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
729.900
729.900
729.900
729.900
729.900
729.900
729.900
729.900
729.900
729.900
729.900
808.200
723.200
638.200
553.200
468.200
383.200
298.200
213.200
102.900
10.900
-85.100
-177.100
-273.100
-374.950
-618.350
-533.350
-448.350
-363.350
-278.350
-193.350
-108.350
-23.600
61.650
146.650
231.650
569.900
569.900
569.900
569.900
569.900
569.900
569.900
569.900
633.950
633.950
633.950
633.950
633.950
660.400
Pin Description
Pin No.
Pin Name
I/O
Description
1~4
SW1~SW4
I
4-bit general purpose input port
5
DO
O
Output serial data at the falling edge of the shift clock, starting from low order
bit. This is an NMOS open-drain output pin.
6
DI
I
Input serial data at the rising edge of the shift clock, starting from the low order
bit.
7
NC
¾
8
CLK
I
Reads serial data at the rising edge, and outputs data at the falling edge.
No connection
9
CS
I
Initializes serial interface at the rising or falling edge of the HT16511. Then it
waits to receive a command. Data input after CS has fallen is processed as a
command. While command data is processed, current processing is stopped,
and the serial interface is initialized. While CS is high, CLK is ignored.
10~13
K0~K3
I
Keying data input to these pins is latched at the end of the display cycle.
14, 33, 45 VDD
¾
Positive power supply
15~26
S1/K1~S12/K12
O
Segment or key source output pins (dual function). This is PMOS open-drain
and pull-low resistor output.
27~32,
35~36
S13/G16~S20/G9
O
Segment or Grid driver output pins. These pins are selectable for segment or
grid driving. This is PMOS open-drain and pull-low resistor output.
34
VEE
¾
VFD power supply
37~44
G8~G1
O
Grid driver output pins (Grid only). This is PMOS open-drain and pull-low resistor output.
46~50
LED4~LED0
O
LED driver output ports. This is a CMOS output pin.
51
VSS
¾
Negative power supply, ground
52
OSC
I
Rev. 1.60
Connected to an external resistor or an RC oscillator circuit.
3
October 31, 2013
HT16511
Approximate Internal Connections
N M O S O U T
P M O S O U T
V
D D
V
E E
C M O S O U T
V
D D
Absolute Maximum Ratings
Supply Voltage ...........................VSS-0.3V to VSS+6.0V
Operating Temperature...........................-25°C to 75°C
Input Voltage..............................VSS-0.3V to VDD+0.3V
Storage Temperature ............................-50°C to 125°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed
in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
D.C. Characteristics
Symbol
Parameter
Ta=25°C
Test Conditions
VDD
Conditions
3.3V
VDD
Logic Supply Voltage
VEE
VFD Supply Voltage
fOSC
Oscillation Frequency
RPL
Output Pull-low Resistor
IDD
Operating Current
IOH21
IOH22
3.3
3.6
V
5.5
V
0
¾
VDD-35
V
480
565
650
kHz
465
545
630
kHz
50
100
150
kW
¾
¾
3
mA
¾
¾
5
mA
¾
¾
-5
mA
¾
¾
-10
mA
10
¾
¾
mA
20
¾
¾
mA
-0.5
¾
¾
mA
5.0V
-1.0
¾
¾
mA
3.3V V =V -2V
OH
DD
5.0V S1/K1~S12/K12
-1.5
¾
¾
mA
-3.0
¾
¾
mA
3.3V
-7.5
¾
¾
mA
-15.0
¾
¾
mA
2
¾
¾
mA
4
¾
¾
mA
¾
3.3V
5.0V
¾
ROSC=51kW
3.3V
Driver output
5.0V
3.3V
No load, VFD display off
3.3V
Driver Leakage Current
3.3V
LED Sink Current
3.3V
LED Source Current
Segment/Key Source Current
Segment/Grid Source Current
5.0V
IOL3
VO=VDD-35V, VFD driver off
VOL=1.0V, LED0~LED4
3.3V
DO Sink Current
VOH=0.9VDD, LED0~LED4
VOH=VDD-2V
VOL=0.4V
5.0V
Rev. 1.60
Unit
5.0
5.0V
IOH1
Max.
3.0
5.0V
IOL1
Typ.
4.5
¾
5.0V
5.0V
IOL
Min.
4
October 31, 2013
HT16511
Symbol
Parameter
Test Conditions
VDD
Conditions
VIH
²H² Input Voltage
¾
¾
VIL
²L² Input Voltage
¾
¾
VOH1
High-level Output Voltage
3.3V LED0~LED4, IOH1=-0.5mA
Min.
Typ.
Max.
Unit
0.7VDD
¾
VDD
V
0
¾
0.3VDD
V
0.9VDD
¾
VDD
V
0
¾
1
V
0
¾
0.4
V
5.0V LED0~LED4, IOH1=-1mA
VOL1
Low-level Output Voltage
VOL2
Low-level Output Voltage
3.3V LED0~LED4, IOL1=10mA
5.0V LED0~LED4, IOL1=20mA
3.3V DO, IOL2=2mA
5.0V DO, IOL2=4mA
A.C. Characteristics
Symbol
Parameter
tPHL
Propagation Delay Time
tPLH
Ta=25°C
Test Conditions
Min.
Typ.
Max.
Unit
3.3V
¾
¾
200
ns
5.0V CLK®DO
3.3V CL=15pF, RL=10kW
¾
¾
100
ns
¾
¾
600
ns
5.0V
¾
¾
300
ns
¾
¾
4.0
ms
¾
¾
2.0
ms
VDD
3.3V
tr1
5.0V
Conditions
CL=300pF, S0~S12
Rise Time
3.3V
tr2
5.0V
3.3V
tf
Fall Time
fmax
Maximum Clock Frequency
Ci
Input Capacitance
tCW
Clock Pulse Width
tSW
Strobe Pulse Width
tSU
Data Setup Time
th
Data Hold Time
tCS
Clock-Strobe Time
tW
Rev. 1.60
5.0V
CL=300pF, G0~G16
CL=300pF, Sn, Gn
3.3V
Duty=50%
5.0V
3.3V
¾
5.0V
3.3V
¾
5.0V
3.3V
¾
5.0V
3.3V
¾
5.0V
3.3V
¾
5.0V
3.3V
¾
¾
1.0
ms
¾
¾
0.5
ms
¾
¾
240
ms
¾
¾
120
ms
¾
¾
0.5
MHz
¾
¾
1.0
MHz
¾
¾
15
pF
¾
¾
15
pF
800
¾
¾
ns
400
¾
¾
ns
2
¾
¾
ms
1
¾
¾
ms
200
¾
¾
ns
100
¾
¾
ns
200
¾
¾
ns
100
¾
¾
ns
2
¾
¾
ms
CLK rising edge to CS rising edge
5.0V
1
¾
¾
ms
3.3V
2
¾
¾
ms
1
¾
¾
ms
Wait Time
CLK rising edge to CLK falling edge
5.0V
5
October 31, 2013
HT16511
Functional Description
Display RAM and Display Mode
Dimming Control
The static display RAM is organized into 40´8 bits and
stores the data transmitted from an external device to
the HT16511 through a serial interface. The contents of
the RAM are directly mapped to the contents of the VFD
driver. Data in the RAM can be accessed through the
data setting, address setting and display control commands. It is assigned addresses in 8-bit unit as follows:
HT16511 provides 8-step dimmer function on display by
controlling the 3-bit binary command code. The full
pulse width of grid signal is divides into 16 uniform sections by PWM (pulse width modulation) technology.
S E G 1
0 0
0 3
0 6
0 9
0 C
0 F
1 2
1 5
1 8
1 B
1 E
2 1
2 4
2 7
2 A
2 D
b 0
Note:
H
S E G 4
0 0
0 3
L
0 6
L
0 9
L
0 C
L
0 F
L
1 2
L
1 5
L
1 8
L
1 B
L
1 E
L
2 1
L
2 4
L
2 7
L
2 A
L
2 D
L
H
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
S E G 8
0
0
U
0
U
0
U
0
U
1
U
1
U
1
U
1
U
1
U
1
U
2
U
2
U
2
U
2
U
2
U
U
H
H
H
1 H
4 H
7 H
A H
D H
0 H
3 H
6 H
9 H
C H
F H
2 H
5 H
8 H
B H
E H
S E G 1 2
0 1
L
0 4
L
0 7
L
0 A
L
0 D
L
1 0
L
1 3
L
1 6
L
1 9
L
1 C
L
1 F
L
2 2
L
2 5
L
2 8
L
2 B
L
2 E
L
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
S E G 1 6
0 2
U
0 5
U
0 8
U
0 B
U
0 E
U
1 1
U
1 4
U
1 7
U
1 A
U
1 D
U
2 0
U
2 3
U
2 6
U
2 9
U
2 C
U
2 F
U
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
H
S E G 2
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
D
L
The 16 uniform sections available form 8 steps dimmer
via 3-bit binary code. The 8-step dimmer includes 1/16,
2/16, 4/16, 10/16, 11/16, 12/16, 13/16 and 14/16. The
1/16 pulse width indicates minimum lightness. The
14/16 pulse width represents maximum lightness (Refer
to the display control command).
0
IG
IG
IG
IG
IG
IG
IG
IG
IG
IG
IG
IG
IG
IG
IG
IG
1
2
3
4
5
6
Key Matrix and Key-Input Data Storage RAM
7
8
9
The key matrix scans the series key states at each level
of the key strobe signal (S1/K1~S12/K12) output of the
HT16511. The key strobe signal outputs are
time-multiplexed signals from S1/K1~S12/K12. The
states of inputs K0~K3 are sampled by strobe signal
S1/K1~S12/K12 and latched into the register.
1 0
1 1
1 2
1 3
1 4
1 5
1 6
b 3 b 4
b 7
X X H L
X X H U
L o w e r
H ig h e r
4 b its
4 b its
Only the lower 4 bits of the addresses assigned
to SEG17 through SEG20 are valid, the higher
4 bits are ignored.
The key matrix is made up of a 12´4 matrix, as shown below.
S 1 /
K 1
S 2 /
K 2
S 3 /
K 3
S 4 /
K 4
S 5 /
K 5
S 6 /
K 6
S 7 /
K 7
S 8 /
K 8
S 9 /
K 9
S 1 0 /
K 1 0
S 1 1 /
K 1 1
S 1 2 /
K 1 2
K 0
K 1
K 2
K 3
D e ta il
K e y m a tr ix
Rev. 1.60
6
October 31, 2013
HT16511
SW Data
The data of each key is stored as illustrated below, and
is read with the read command, starting from the least
significant bit.
K 0 ~ K 3
K 0 ~ K 3
S 1 /K 1
S 2 /K 2
S 3 /K 3
S 4 /K 4
S 5 /K 5
S 6 /K 6
S 7 /K 7
S 8 /K 8
S 9 /K 9
S 1 0 /K 1 0
S 1 0 /K 1 0
S 1 2 /K 1 2
The HT16511 provides an extra 4-bit general input port.
The SW data is provided with available binary code. The
SW data is read with the read command, starting from
the least significant bit. Bits 5 through 8 of the SW data
are 0.
M S B
0
R e a d in g s e q u e n c e
L S B
0
0
0
b 3
b 2
b 1
S W 0
S W 1
S W 2
S W 3
D o n 't c a r e
b 0 b 1 b 2 b 3 b 4 b 5 b 6 b 7
LED Port
b 0
Commands
The LED port belongs to the CMOS output configuration.
Commands set the display mode and status of the VFD
driver.
Data is written to the LED port with the write command,
starting from the least port¢s least significant bit. In our
application (see application circuits), the user adopts an
internal NMOS device to a driver LED component by
connecting VDD. When a bit of this port is 0, the corresponding LED lights; when the bit is 1, the LED turns off.
The data of bits 6 through 8 are ignored.
M S B
The first 1 byte input to the HT16511 through the DI pin
after the CS pin has fallen, is regarded as a command. If
CS is set high while commands/data are transmitted,
serial communication is initialized, and the commands/
data being transmitted are not valid (however, the commands/data previously transmitted remains valid).
· Display mode setting commands
L S B
b 4
b 3
b 2
b 1
These commands initialize the HT16511 and select
the number of segments and the number of grids
(1/8~1/16 duty, 12 segments to 20 segments).
When these commands are executed, the display is
forcibly turned off, and key scanning is also stopped.
To resume display, the display command ²ON² must
be executed. If the same mode is selected, nothing
happens.
b 0
L E
L E
L E
L E
L E
D o n 't c a r e
D 0
D 1
D 2
D 3
D 4
M S B
0
L S B
0
b 3
b 2
b 1
b 0
0 x x
1 0 0
1 0 0
1 0 1
1 0 1
1 1 0
1 1 0
1 1 1
1 1 1
D o n 't c a r e
S e
x :
0 :
1 :
0 :
1 :
0 :
1 :
0 :
1 :
le c
8
9
1
1
1
1
1
1
1
ts d is p
d ig its ,
d ig its ,
0 d ig its
1 d ig its
2 d ig its
3 d ig its
4 d ig its
5 d ig its
6 d ig its
la
2
1
,
,
,
,
,
,
,
y m
0 s
9 s
1 8
1 7
1 6
1 5
1 4
1 3
1 2
o
e g
e g
s e
s e
s e
s e
s e
s e
s e
d e
m e
m e
g m
g m
g m
g m
g m
g m
g m
n ts
n ts
e n ts
e n ts
e n ts
e n ts
e n ts
e n ts
e n ts
Note: Power-on status: 16-digit, 12 segment mode is selected.
Rev. 1.60
7
October 31, 2013
HT16511
· Data setting commands
These commands set the data write and data read modes.
M S B
L S B
0
b 3
1
b 2
b 1
b 0
S e
0 0
0 1
1 0
1 1
D o n 't c a r e
ts d a ta
: W r ite
: W r ite
: R e a d
: R e a d
w r ite a
d a ta to
d a ta to
k e y d a
S W d a
n d re a d m o d e
d is p la y m e m o r y
L E D p o rt
ta
ta
A d d r e s s in c r e m e n t m o d e s e ttin g s ( d is p la y m e m o r y )
0 : In c r e m e n ts a d d r e s s a fte r d a ta h a s b e e n w r itte n
1 : F ix e s a d d r e s s
T e s t m o d e s e ttin g s
0 : N o rm a l m o d e
1 : T e s t m o d e , u s e r d o n 't u s e
Note: power-on status: normal mode operation and address increment mode are set.
· Address setting commands
These commands set the address of the display memory.
M S B
L S B
1
1
b 5
b 4
b 3
b 2
b 1
b 0
A d d re s s (0 0 H ~ 2 F H )
If address 30H or higher is set, data is ignored until a valid address is set.
Note: power-on status: the address is set to 00H.
· Display control commands
M S B
1
L S B
0
b 3
D o n 't c a r e
b 2
b 1
b 0
S e
0 0
0 0
0 1
0 1
1 0
1 0
1 1
1 1
ts
0 :
1 :
0 :
1 :
0 :
1 :
0 :
1 :
d im
S e
S e
S e
S e
S e
S e
S e
S e
m
t p
t p
t p
t p
t p
t p
t p
t p
in g
u ls
u ls
u ls
u ls
u ls
u ls
u ls
u ls
q u
e w
e w
e w
e w
e w
e w
e w
e w
a
id
id
id
id
id
id
id
id
n tity
th to
th to
th to
th to
th to
th to
th to
th to
1 /1 6
2 /1 6
4 /1 6
1 0 /1
1 1 /1
1 2 /1
1 3 /1
1 4 /1
6
6
6
6
6
T u r n s o n /o ff d is p la y
0 : D is p la y o ff ( k e y s c a n c o n tin u e s )
1 : D is p la y o n
Note: power-on status: 1-16 pulse width is set and the display is turned off. Key scanning will be stopped during
power
Rev. 1.60
8
October 31, 2013
HT16511
Timing Diagrams
tr1
( tr2 )
tf
9 0 %
S n /G n
1 0 %
tS
W
C S
tC
W
tC
tC
W
S
C L K
tS
U
th
D I
tP
tP
H L
L H
D O
Key Scanning and Display Timing
K e y s c a n d a ta
S n /K n o u tp u t
D ig it 1
D ig it 2
D ig it 3
D ig it n
D ig it 1
G 1 o u tp u t
G 2 o u tp u t
1 /1 6 tD
IS P
G 3 o u tp u t
G n o u tp u t
t @ 5 0 0 m s
1 fra m e = T ´ (n + 1 )
Note: One cycle of key scan consists of two frames, and data of 12´4 matrixes is stored in RAM.
Rev. 1.60
9
October 31, 2013
HT16511
Serial Communication Format
· Reception (command/data write)
C S
C L K
1
2
b 0
D I
3
b 1
7
b 2
8
b 6
b 7
· Transmission (data read)
C S
1
C L K
2
b 0
D I
3
b 1
4
b 2
5
b 3
6
b 4
7
b 5
8
b 6
tW
1
2
3
4
5
6
b 7
b 0
D O
A d a ta r e a d c o m m a n d is s e t
b 1
b 2
b 3
b 4
b 5
D a ta is r e a d
DO must be sure to connect an external pull-high resistor to this pin (1kW to 10kW).
Note: When data is read, a wait time ²tW² of 1ms is necessary.
· Updating display memory by incrementing address
C S
C L K
D I
C o m m a n d 1
C o m m a n d 2
C o m m a n d 3
D a ta 1
D a ta n
C o m m a n d 4
Note: Command 1: sets display mode
Command 2: sets data
Command 3: sets address
Data 1 to n: transfers display data (48 bytes max.)
Command 4: controls display
· Updating specific addresses
C S
C L K
D I
C o m m a n d 1
C o m m a n d 2
D a ta
C o m m a n d 2
D a ta n
Note: Command 1: sets data
Command 2: sets address
Data: display data
Rev. 1.60
10
October 31, 2013
HT16511
Application Circuits
R 7
R 8
R 9
R 1 0
D 1
V
D 2
D 3
D 4
D 5
D 7
D 6
D 8
D 9
D D
V D D
R
0 .1 m F
K 0
K 1
K 2
K 3
S 1 /K 1
S 2 /K 2
S 3 /K 3
S 4 /K 4
S 5 /K 5
S 6 /K 6
S 7 /K 7
S 8 /K 8
O S C
D 1 0
D 1 1
D 1 2
S 1
S 2
S 3
S 4
S 5
S 6
S 7
S 8
S 9
S 1 0
S 1 1
S 1 2
S 9 /K 9 S 1 0 /K 1 0 S 1 1 /K 1 1
S 1 2 /K 1 2
V F D
E f
O S C
S 1 3 /G 1 6 ~ S 2 0 /G 9
C S
C L K
D I
V
M C U
H T 1 6 5 1 1
G 1 ~ G 8
D D
R 1
D O
L E D 0
R 2
V
Note:
L E D 1
R 3
L E D 2
R 4
L E D 3
R 5
S W 0
L E D 4
S W 1
S W 2
S W 3
V S S
V E E
V
E E
R 6
D D
ROSC=51kW for oscillator resistor
R1=1~10kW for external pull-high resistor
R2~R6=750W~1.2kW
R7~R10=10kW for external pull-low resistor
D1~D12=1N4001
Ef=Filament voltage for VFD
Rev. 1.60
11
October 31, 2013
HT16511
Package Information
Note that the package information provided here is for consultation purposes only. As this
information may be updated at regular intervals users are reminded to consult the Holtek website for the
latest version of the Package/Carton Information.
Additional supplementary information with regard to packaging is listed below. Click on the
relevant section to be transferred to the relevant website page.
• Further Package Information (include Outline Dimensions, Product Tape and Reel Specifications)
• Packing Meterials Information
• Carton information
Rev. 1.60
12
October 31, 2013
HT16511
52-pin LQFP (14mm´14mm) Outline Dimensions
C
H
D
3 9
G
2 7
I
2 6
4 0
F
A
B
E
1 4
5 2
K
J
1
Symbol
Dimensions in inch
Min.
Nom.
Max.
A
0.622
0.630
0.638
B
0.547
0.551
0.555
C
0.622
0.630
0.638
D
0.547
0.551
0.555
E
¾
0.039 BSC
¾
F
0.015
¾
0.019
G
0.053
0.055
0.057
H
¾
¾
0.063
I
0.002
¾
0.008
J
0.018
¾
0.030
K
0.005
¾
0.007
a
0°
¾
7°
Symbol
Rev. 1.60
1 3
Dimensions in mm
Min.
Nom.
Max.
A
15.80
16.00
16.20
B
13.90
14.00
14.10
C
15.80
16.00
16.20
D
13.90
14.00
14.10
E
¾
1.0 BSC
¾
F
0.39
¾
0.48
G
1.35
1.40
1.45
H
¾
¾
1.60
I
0.05
¾
0.20
J
0.45
¾
0.75
K
0.13
¾
0.18
a
0°
¾
7°
13
October 31, 2013
HT16511
Copyright Ó 2013 by HOLTEK SEMICONDUCTOR INC.
The information appearing in this Data Sheet is believed to be accurate at the time of publication. However, Holtek assumes no responsibility arising from the use of the specifications described. The applications mentioned herein are used solely for the purpose of illustration and
Holtek makes no warranty or representation that such applications will be suitable without further modification, nor recommends the use of its products for application that may present a
risk to human life due to malfunction or otherwise. Holtek¢s products are not authorized for use
as critical components in life support devices or systems. Holtek reserves the right to alter its
products without prior notification. For the most up-to-date information, please visit our web
site at http://www.holtek.com.tw.
Rev. 1.60
14
October 31, 2013
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