SAMHOP Microelectronics Corp.
8-BIT CONSTANT CURRENT LED DRIVER
PIN DESCRIPTION
Pin NO.
1
2
3
I
I
I/O
Pin Name
GND
SERIAL-IN
CLOCK
GND terminal
Terminal of serial-data input to the shift register.
Input terminal of a clock for shift register on rising edge.
Input terminal of data strobe. Latches pass data with
"H" level input of LATCH-terminal, and hold data with
"L" level input.
Constant Current-sinking output terminals.
Input terminal of output enable. All outputs (OUT0~7) do
off with "H" level input of ENABLE-terminal and do on
with "L" level input.
Output terminal of serial-data for next SERIAL-IN terminal.
An external resistor at this terminal establishes all of the
output current.
Supply voltage terminal.
Function Description
4
I
LATCH
5~12
O
OUT0~7
13
I
ENABLE
14
15
16
O
I/O
SERIAL-OUT
R-EXT
VDD
Page 3
V.2.10
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
