HDSP-2301 HP [Agilent(Hewlett-Packard)], HDSP-2301 Datasheet - Page 6

• Manufacturer Part Number: HDSP-2301
• Description: Four Character 5.0 mm (0.20 inch) 5 x 7 Alphanumeric Displays
• Manufacturer: HP [Agilent(Hewlett-Packard)]

Electrical Description
The HDSP-230X series of four
character alphanumeric displays
have been designed to allow the
user maximum flexibility in
interface electronics design. Each
four character display module
features Data In and Data Out
terminals arrayed for easy PC
board interconnection. Data Out
represents the output of the 7th
bit of digit number 4 shift
register. Shift register clocking
occurs on the high to low
transition of the Clock input. The
like columns of each character in
a display cluster are tied to a
single pin. Figure 5 is the block
diagram for the displays. High
true data in the shift register
enables the output current mirror
driver stage associated with each
row of LEDs in the 5 x 7 diode
array.
The TTL compatible V
may either be tied to V
maximum display intensity or
pulse width modulated to achieve
intensity control and reduction in
power consumption.
The normal mode of operation
input data for digit 4, column 1,
Figure 6. Contrast Enhancement Filters.
HDSP-2301 (Yellow)
HDSP-2302 (HER)
HDSP-2303 (HP Green)
Display Color
B
CC
input
for
Panelgraphic Yellow 27
Chequers Amber 107
Panelgraphic Ruby Red 60
Chequers Red 112
Panelgraphic Green 48
Chequers Green 107
Figure 5. Block Diagram of HDSP-2301/-2302/-2303.
BLANKING
CONTROL
SERIAL
DECODED
DATA
INPUT
Dim
MATRIX
ROWS
1 – 7
1 – 7
LED
CONSTANT CURRENT SINKING LED DRIVERS
7
7
1
5
Ambient Lighting
Polaroid HNCP37
3M Light Control Film
Panelgraphic Gray 10
Chequers Grey 105
28 BIT SIPO SHIFT REGISTER
COLUMN DRIVE INPUTS
MATRIX
ROWS
8 – 14
1 – 7
LED
DATA LOCATIONS
2
7
7
5
Moderate
CLOCK
5
6
MATRIX
15 – 21
ROWS
1 – 7
LED
7
7
3
5
MATRIX
ROWS
22 – 28
1 – 7
LED
4
7
7
5
Polaroid HNCP10
Bright
SERIAL
DECODED
DATA
OUTPUT