PDSP1880 Datasheet, PDF (8/15 Pages) OSRAM GmbH – Alphanumeric Programmable Display™

PDSP1880, PDSP1881, PDSP1882, PDSP1883, PDSP1884
Cascading Diagram
RD
WR
FL
RST
V_CC
RD WR FL RST CLK CLK
I/O SEL
Display
D0-D7 A0-A4
CE
Data I/O
Address
Up to 14 more
displays in between
A6
0
A7
Address
Address Decode Chip 1 to 14
A8
Decoder
15
A9
RD WR FL RST CLK CLK
I/O SEL
Display
D0-D7 A0-A4
CE
IDCD5031
Block Diagram
OSC
3
Counter
32
Counter
7
Counter
Character
RAM
Decode
Character
RAM
D Latch
Holding
Register
Data 4
Bus
UDC
Address
Register
4
Row
Drivers
8 Digit Display
128
Counter
ROM ₆₄
Word
Decode
Character
Decode
for Display
16
Character ¹⁶
Decode
(Read/Write)
ROM ₅
5
UDC
RAM
Column
Latch
25
Self
Test
Column
Drivers
Cursor
25 ^Controls
and
Display
MUX
Control
Word
Register
Flash
RAM
IDBD5064
2006-03-30
8