Datasheet
Crameda Intersys AG CC-DS-E-0011
Pumpwerkstrasse 23 Seite : 4
CH-8105 Regensdorf · Schweiz http://www.crameda.com
Type 805
! 7-segment display
! Height of character 16 mm
! Memory
! BCD-Input
! TTL or CMOS logic
! 5 or 12 V supply voltage
! Depth when mounted 38 mm
Circuit diagram
In this module, the display is operated by the BCD code in
positive logic. A control signal (Input EL) makes it possible to
freeze the display without inhibiting the BCD input signals.
TTL and CMOS logic models are available. The inputs of the
CMOS models are terminated with resistors.
Caution:
The terminals of the TTL and CMOS models are not identical.
Terminal 12* can be used to separately power the LED
display in the TTL model. However, it must be specified in the
order (see ordering data).
Technical data
Character height 16 mm
Supply current I
CC
with TTL logic typ. 140 mA
with CMOS logic typ. 90 mA
Separate display power terminal in TTL-model
(Terminal 12) +5 V ±20 %
Depth behind panel 38 mm
Input data
Input voltage (all inputs)
TTL CMOS
U
in
«0» with V
cc
= 5 V max. 0.8 V 1 1.5 V
= 12 V max. 3.6 V
U
in
«1» with V
cc
= 5 V min. 2 V 3.5 V
= 12 V 8.4 V
Input currents
TTL logic
BCD input currents with EL = «0»
l
in
«0» with U
in
= 0.4 V max. -1.6 mA
l
in
«1» with U
in
= 2.4 V max. 80 µA
with EL = «1»
l
in
«0» and «1» max. -0.1 mA
Inputs EL and RBI
l
in
«0» with U
in
= 0.4 V max. -1.6 mA
Input BI
l
in
«0» with U
in
= 0.4 V max. -3.2 mA
l
in
«1» with U
in
= 2.4 V max. 80 µA
Length of storage instruction t
w
min. 45 ns
Length of setting time t
s
min. 30 ns
Length of holding time t
n
min. 0 ns
CMOS logic:
All inputs Pull-up / Pull-down
Resistance 100 KΩ
l
in
«0» with U
in
= 1.5 V max. 15.5 µA
= 3 V max. 31 µA
= 3.6 V max. 37 µA
= 4.5 V max. 46 µA
l
in
«1» with U
in
= 3.5 V max. 36 µA
= 7 V max. 71.5 µA
= 8.4 V max. 86 µA
= 10.5 V max. 107 µA
V
CC
Length of storage instruction t
w
5 min. 400 ns
10 min. 160 ns
15 min. 100 ns
Length of setting time t
s
5 min. 150 ns
10 min. 70 ns
15 min. 40 ns
Length of holding time t
n
5 min. 75 ns
10 min. 35 ns
15 min. 20 ns
Data may vary Data may vary
Data must
be stable
Data may vary Data may vary
Data must
be stable