HT1632
Pin Assignment
O U
O U
O U
L E
O U
O U
O U
O U
O U
O U
O U
O U
L E
T B
T B
T B
T B
T B
T B
T B
T B
D _
S
S
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
2
3
4
T B
T B
T B
D _
IT 2
IT 2
IT 2
V S
IT 1
IT 1
IT 1
IT 1
IT 1
IT 1
IT 1
IT 1
V S
2
3
4
5
6
7
8
9
0
1
2
O U T
O U T
O U
O U
O U
O U
O U
O U
L E D
O U
O U
O U
O U
B IT 1
B IT 1
T B IT
T B IT
T B IT
T B IT
T B IT
T B IT
_ V S
T B IT
T B IT
T B IT
T B IT
S
1
9
8
7
5
3 9
3 8
3 7
3 6
3 5
0
6
5
7
6
H T 1 6 3 2
8
4
3
2
1
0
9
5 2 Q F P -A
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
O U T
O U T
O U T
O U T
O U T
L E D
O U T
O U T
O U T
O U T
C O M
C O M
C O M
B IT
B IT
B IT
B IT
B IT
_ V S
B IT
B IT
B IT
B IT
7
6
5
2 3
2 4 /C
2 5 /C
2 6 /C
2 7 /C
S
2 8 /C
2 9 /C
3 0 /C
3 1 /C
O M 1
O M 1
O M 1
O M 1
4
3
2
O M 1 1
O M 1 0
O M 9
O M 8
5
C O M
C O M
C O M
C O M
C O M
V D D
S Y N
C S
R D
W R
D A T
O S C
V S S
C
A
0
1
2
3
4
Pin Description
Pad Name
OUTBIT0~OUTBIT23
OUTBIT24/COM15~
OUTBIT31/COM8
COM0~COM7
SYNC
I/O
O
O
O
I/O
Description
Line drivers. These pins drive the LEDs.
Drive LED output or Common output
Common outputs
If the MASTER MODE command is programmed, the synchronous signal is output
to SYN pin. If the SLAVE MODE command is programmed, the synchronous sig-
nal is input from SYN pin.
If the system clock is is sourced from an external clock source, the external clock
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.
Serial data input or output with pull-high resistor
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
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
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.
Negative power supply for driver circuit, ground.
Negative power supply for logic circuit, ground.
Positive power supply for logic and driver circuit.
OSC
I/O
DATA
WR
I/O
I
RD
I
CS
I
LED_VSS
VSS
VDD
¾
¾
¾
Rev. 1.30
2
June 28, 2011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
