HT16562 Просмотр технического описания (PDF) - Holtek Semiconductor
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HT16562 Datasheet PDF : 8 Pages
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Pin Assignment
GR2 1
30 G R 1
GR1 1
30
VCC 2
29 2a,2d
2a,2d 2
29
VDD 3
28 2b,4b,4c
2b,4b,4c 3
28
64H z 4
27 2f
2f 4
27
TEST 5
2 6 2 c , c o l*
2 c , c o l* 5
26
B LA N K 6
D IM 1 7
2 5 2 c , c o l'*
24 2e
2 c , c o l'* 6
25
2e 7
24
D IM 2 8
XT 9
23 2g
22 1d,3d
2g 8
23
1d,3d 9
22
X T 10
V S S 11
21 1e,3e
20 1c,3c
1e,3e 10
21
1c,3c 11
20
A /C 1 2
19 1g,3g
1g,3g 12
19
ZA 13
1 8 1 f, 3 f
1 f, 3 f 1 3
18
H S 14
1 7 1 b ,3 b
1 b ,3 b 1 4
17
M S 15
16 1a,3a
1a,3a 15
16
H T16562
3 0 S S O P -A
H T16562B
3 0 S S O P -B
Note: ²*² col indicates a blink colon and col¢ indicates a continuous light colon.
GR2
VCC
VDD
64H z
TEST
B LA N K
D IM 1
D IM 2
XT
XT
VSS
A /C
ZA
HS
MS
Pin Description
Pin Name
VCC
VDD
VSS
DIM1
DIM2
A/C
ZA
HS
MS
BLANK
XT
XT
TEST
64Hz
GR1
GR2
1a,3a ~
2b,4b,4c
I/O
Description
¾ High voltage power supply pin.
O Built-in regulator voltage output pin for the device internal circuits.
¾ Ground pin.
I Illumination level control pins.
I Internally connected to pull-down resistors.
When the A/C pin is low, the internal circuits are reset.
I The reset pulse width should be more than 2ms.
Internally connected to a pull-high resistor.
I
Zero Adjustment pin.
Internally connected to a pull-high resistor.
I
Hour Adjustment pin.
Internally connected to a pull-high resistor.
I
Minute Adjustment pin.
Internally connected to a pull-high resistor.
I
When low the Blank input pin will extinguish the display.
Internally connected to a pull-down resistor.
O
Crystal oscillator pin
I
I IC test pin - should be left open or kept at a low level
O 64Hz signal output pin for oscillation frequency adjustment
O
Grid output pins for 1/2 duty VFD
O
O Segment output pins for 1/2 duty VFD
HT16562
Rev. 1.20
2
December 17, 2010
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