HT1632 データシートの表示（PDF） - Holtek Semiconductor
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HT1632 Datasheet PDF : 17 Pages
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Pin Assignment
HT1632
O U T B IT 1 1
O U T B IT 1 0
O U T B IT 9
O U T B IT 8
O U T B IT 7
O U T B IT 6
O U T B IT 5
O U T B IT 4
LE D _V S S
O U T B IT 3
O U T B IT 2
O U T B IT 1
O U T B IT 0
52 51 50 49 48 47 46 45 44 43 42 41 40
1
39
2
38
3
37
4
36
5
35
6
7
H T1632
34
33
8
5 2 Q F P -A
32
9
31
10
30
11
29
12
28
13
27
14 15 16 17 18 19 20 21 22 23 24 25 26
O U T B IT 2 3
O U T B IT 2 4 /C O M 1 5
O U T B IT 2 5 /C O M 1 4
O U T B IT 2 6 /C O M 1 3
O U T B IT 2 7 /C O M 1 2
LE D _V S S
O U T B IT 2 8 /C O M 1 1
O U T B IT 2 9 /C O M 1 0
O U T B IT 3 0 /C O M 9
O U T B IT 3 1 /C O M 8
COM 7
COM 6
COM 5
Pin Description
Pad Name
OUTBIT0~OUTBIT23
OUTBIT24/COM15~
OUTBIT31/COM8
COM0~COM7
SYNC
OSC
DATA
WR
RD
CS
LED_VSS
VSS
VDD
I/O
Description
O Line drivers. These pins drive the LEDs.
O Drive LED output or Common output
O Common outputs
I/O Cascade synchronization input and output
If the system clock is is sourced from an external clock source, the external clock
I/O
source should be connected to this pad. If the on-chip RC oscillator is selected,
this pad can be connected to a high or low level. If the cascade mode is selected,
this pad is the driver clock signal.
I/O Serial data input or output with pull-high resistor
I
WRITE clock input with pull-high resistor Data on the DATA lines are latched into
the HT1632 on the rising edge of the WR signal.
READ clock input with pull-high resistor. The HT1632 RAM data is clocked out on
I the falling edge of the RD signal. The clocked out data will appear on the DATA
line. The host controller can use the next rising edge to latch the clocked out data.
Chip select input with pull-high resistor When the CS line is high, the data and
I
command read from or written to the HT1632 is disabled, and the serial interface
circuit is also reset. If CS is low, the data and command transmission between the
host controller and the HT1632 are all enabled.
¾ Negative power supply for driver circuit, ground.
¾ Negative power supply for logic circuit, ground.
¾ Positive power supply for logic and driver circuit.
Rev. 1.00
2
October 2, 2007
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