PDSP1880
YELLOW
PDSP1881
HIGH EFFICIENCY RED
PDSP1882
GREEN
PDSP1883
HIGH EFFICIENCY GREEN
PDSP1884
RED YELLOW
0.180” 8-Character 5x7 Dot Matrix
Alphanumeric Programmable Display
TM
Package Dimensions in Inches (mm)
1.690 (42.93) max.
.105 (2.68)
.211
(5.36)
0
1
2
3
4
5
6
7
.180 (4.57)
.450 (11.43)
max.
.090 (2.29)
C
L
.060
(1.52)
Ref.
.210
(5.33)
C
L
.010
(0.25)
Pin 1
Identifier
C
L
.100 (2.54)
C
L
Pin 16
.012
(0.30)
typ
.300
(7.62)
FEATURES
• Eight 0.180" Dot Matrix Characters in Red,
Yellow, High Efficiency Red, Green, or High
Efficiency Green
• Built-in 128 Character ROM, Mask Program-
mable for Custom Fonts
• Readable from 8 Feet (2.5 meters)
• Built-in Decoders, Multiplexers and Drivers
• Wide Viewing Angle, X Axis
±
55
°
, Y Axis 65
°
• Programmable Features:
- Individual Flashing Character
- Full Display Blinking
- Multi-Level Dimming and Blanking
- Clear Function
- Self Test
• Internal or External Clock
• End Stackable Dual-In-Line Plastic Package
• Read/Write Capability
• 16 User Definable Characters
.020 (0.51)
Pin #1
.100 –.005 typ.
(2.54 –0.13)
(Tol. non-cum.)
.400
(10.16)
.200
(5.08)
.018
(0.46)
typ.
.158 (4.01) typ.
Pin #15
.225
(5.71)
DESCRIPTION
The PDSP1880 (Red), PDSP1881 (Yellow), PDSP1882 (High Efficiency
Red), PDSP1883 (Green), and PDSP1884 (High Efficiency Green) are eight
digit, 5x7 dot matrix, alphanumeric Programmable Displays. The 0.180
inch high digits are packaged in a rugged, high quality, optically transpar-
ent, 0.300 inch lead spacing, 30 pin plastic DIP.
The on-board CMOS has a built-in 128 character ROM. The PDSP188X
also has a user definable character (UDC) feature, which uses a RAM that
permits storage of 16 arbitrary characters, symbols or icons that are soft-
ware-definable by the user. The character ROM itself is mask programma-
ble and easily modified by the manufacturer to provide specified custom
characters.
The PDSP188X is designed for standard microprocessor interface tech-
niques, and is fully TTL compatible. The Clock I/O and Clock Select pins
allow the user to cascade multiple display modules.
2–107
ESD Warning: Standard precautions for CMOS
handling should be observed.
Maximum Rating
(T
A
=25
°
C)
DC Supply Voltage,
V
CC
to GND (max. voltage
with no LEDs on)...................... –0.3 to +7.0 VDC
Input Voltage Levels,
All Inputs.............................. –0.3 V to V
CC
+0.3 V
Operating Temperature .................–40
°
C to +85
°
C
Storage Temperature....................–40
°
C to +100
°
C
Relative Humidity (non-condensing)................85%
Operating Voltage, V
CC
to GND
(Max. voltage with 20 dots/digits on)............5.5V
Maximum Solder Temperature ...................... 260
°
C
(0.063” below the seating plane, t<5 sec.)
ESD Protection at 1.5 K
Ω
,
100 pF................................... V
Z
=4 KV (each pin)
Figure 1. Enlarged character format
Dimensions in inches (mm)
0.098 (2.49)
C1 C2 C3 C4 C5
R1
0.028 (0.71) Typ.
R2
R3
R4
R5
R6
0.01 (0.254)
Typ.
R7
0.178
(4.52)
Switching Specifications
(over operating temperature range and V
CC
=4.5 V)
Symbol
Tacc
Tacc
Tacs
Tce
Tce
Tach
Tcer
Tces
Tces
Tceh
Tw
Twd
Tdh
Tr
Trd
Tdf
Description
Display Access Time–Write
Display Access Time–Read
Address Setup Time to CE
Chip Enable Active Time–Write
Chip Enable Active Time–Read
Address Hold Time to CE
Chip Enable Recovery Time
Chip Enable Active Prior to Rising
Edge–Write
Chip Enable Hold Prior to Rising
Edge–Read
Chip Enable Hold to Rising Edge of
Read/Write Signal
Write Active Time
Data Valid Prior to Rising Edge of
Write Signal
Data Write Time
Chip Enable Active Prior to Valid Data
Read Active Prior to Valid Data
Read Data Float Delay
Reset Active Time
Min.
210
230
10
140
160
20
60
140
160
0
100
50
20
160
95
10
300
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
0.022 (0.56) Typ.
Trc
Figure 2. Write Cycle timing diagram
Tacc
A0-A3
FL
Tach
Tacs
CE
Tces
Tw
WR
Twd
D0-D7
Tdh
Tceh
Tce
Tacs
Tcer
PDSP1880/1881/1882/1883/1884
2–108
Figure 3. Read Cycle timing diagram
Tacc
A0-A3
FL
Tacs
CE
Tces
Tr
RD
Trd
D0-D7
Tdf
Tceh
Tach
Tce
Tcer
Tacs
Character Set
D0
D1
D2
D3
D7 D6 D5 D4 HEX
ASCII
CODE
L
L
L
L
0
L
L
L
L
0
H
L
L
L
1
L
H
L
L
2
H
H
L
L
3
L
L
H
L
4
H
L
H
L
5
L
H
H
L
6
H
H
H
L
7
L
L
L
H
8
H
L
L
H
9
L
H
L
H
A
H
H
L
H
B
L
L
H
H
C
H
L
H
H
D
L
H
H
H
E
H
H
H
H
F
L
L
L
H
1
L
L
H
L
2
L
L
H
H
3
L
H
L
L
4
L
H
L
H
5
L
H
H
L
6
L
H
H
H
7
H X
X
X
8
UDC UDC
0
1
UDC UDC UDC UDC
2
3
4
5
UDC UDC
6
7
UDC UDC
8
9
UDC UDC
10
11
UDC
12
UDC
13
UDC
14
UDC
15
Notes: 1. Upon power up, device will initialize in a random state
2. X=Don’t care.
PDSP1880/1881/1882/1883/1884
2–109
Optical Characteristics at 25
°
C
V
CC
=5.0 V at Full Brightness
Red PDSP1880
Description
Luminous Intensity
Peak Wavelength
Dominant Wavelength
Yellow PDSP1881
Description
Luminous Intensity
Peak Wavelength
Dominant Wavelength
High Efficiency Red PDSP1882
Description
Luminous Intensity
Peak Wavelength
Dominant Wavelength
Green PDSP1883
Description
Luminous Intensity
Peak Wavelength
Dominant Wavelength
High Efficiency Green PDSP1884
Description
Luminous Intensity
Peak Wavelength
Dominant Wavelength
Symbol
I
V
λ
(peak)
λ
(d)
Min.
125
Typ.
500
568
574
Max.
Units
µ
cd/dot
nm
nm
Symbol
I
V
λ
(peak)
λ
(d)
Min.
125
Typ.
275
565
570
Max.
Units
µ
cd/dot
nm
nm
Symbol
I
V
λ
(peak)
λ
(d)
Min.
125
Typ.
350
630
626
Max.
Units
µ
cd/dot
nm
nm
Symbol
I
V
λ
(peak)
λ
(d)
Min.
125
Typ.
205
583
585
Max.
Units
µ
cd/dot
nm
nm
Symbol
I
V
λ
(peak)
λ
(d)
Min.
70
Typ.
125
660
639
Max.
Units
µ
cd/dot
nm
nm
PDSP1880/1881/1882/1883/1884
2–110
DC Electrical Characteristics
at 25
°
C
Parameter
Limits
Min.
Typ.
Max.
Units
Conditions
V
CC
I
CC
Blank
l
CC
12 dots/digit on
(1, 2)
l
CC
20 dots/digit on
(1, 2)
l
ILP
(with pull-up) Input Leakage
l
IL
(no pull-up) Input Leakage
V
IH
Input Voltage High
V
IL
Input Voltage Low
V
OL
(D0 to D7) Output Voltage Low
V
OL
(CLK) Output Voltage Low
V
OH
Output Voltage High
4.5
5.0
0.65
200
300
5.5
1.0
255
370
–5
+1
V
CC
+0.3
V
mA
mA
mA
µ
A
µ
A
V
V
V
CC
=5 V, V
IN
=5 V
V
CC
=5 V, “V” in all 8 digits
V
CC
=5 V, “#” in all 8 digits
V
CC
=5 V, V
IN
=0 V to V
CC
(WR, CE, FL, RST, RD, CLKSEL)
V
CC
=5 V, V
IN
=5 V
(CLK, A0–A3, D0–D7)
V
CC
=4.5 V to 5.5 V
V
CC
=4.5 V to 5.5 V
V
CC
=4.5 V, I
OL
=1.6 mA
V
CC
=4.5 V, I
OL
=40
µ
A
V
CC
=4.5 V, I
OH
=40
µ
A
–18
–1
2.0
Gnd –0.3
–11
0.4
0.4
2.4
60
28
125
0.98
57.34
256
2.0
81.14
362.5
2.83
2.40
500
500
V
V
V
°
C/W
KHz
Hz
Hz
pF
nsec
nsec
θ
JC
Thermal Resistance, Junction to Case
Clock I/O Frequency
FM, Digit Multiplex Frequency
Blinking Rate
Clock I/O Bus Loading
Clock Out Rise Time
Clock Out Fall Time
Notes: 1. I
CC
is an average value.
V
CC
=4.5 V to 5.5 V
V
CC
=4.5 V to 5.5 V
V
CC
=4.5 V, V
OH
=2.4 V
V
CC
=4.5 V, V
OH
=0.4 V
2. I
CC
is measured with the display at full brightness. Peak I
CC
=
28
/
15
I
CC
average (# displayed).
Recommended Operating Conditions
(T
A
=–40
°
C to +85
°
C)
Parameter
Supply Voltage
Input Voltage Low
Input Voltage High
Output Voltage Low
Output Voltage High
Symbol
V
CC
V
IL
V
IH
V
OL
V
OH
2.4
2.0
0.4
Min.
4.5
Max.
5.5
0.8
Units
V
V
V
V
V
PDSP1880/1881/1882/1883/1884
2–111
Embedded System
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