M7E-02DRN2 Omron, M7E-02DRN2 Datasheet - Page 11

• Manufacturer Part Number: M7E-02DRN2
• Description: THUMBWHEEL
• Manufacturer: Omron
• Series: M7Er

Specifications of M7E-02DRN2

• Number Of Digits/alpha: *
• Digit/alpha Size: *
• Display Type: *
• Common Pin: *
• Color: Red
• Voltage - Forward (vf) Typ: *
• Current - Test: *
• Millicandela Rating: *
• Wavelength - Peak: *
• Power Dissipation (max): *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Package / Case: -
• Size / Dimension: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: M7E02DRN2

Operation
■ Operation Timing (Input Signal Timing)
■ Operation Chart
• The following example shows the relationship between each input terminal signal and the display condition for a Negative-logic Decimal Display
• Using the latch input (LE) terminal for each Unit, the data input terminals (A to D) can be used in common yet still enable display on each Unit
Positive Logic
Terminal
displayed value
Input
signals
Display condition
Remarks
Latch
input
sig-
nals
Display
condition
Data input
signals A to D
Latching
input LE
Unit with Blanking.
(example of a 3-digit dynamic-output model with positive logic).
Data input
(A to D)
signals
3
digit
(LE3)
2
digit
(LE2)
1
digit
(LE1)
A (2
B (2
C (2
D (2
DP
LE
rd
nd
st
H
L
Data
t w: Pulse duration
t h: Hold time
t s: Setup time
Data latch
0
1
2
3
)
)
)
)
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
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0 (power: ON)
Data read
0
Data latch
ts
tw
1
The "1" display is turned
OFF by the LE signal.
th
Data latch
Data latch
3
change
rd
-digit display
Data latch
Data read
2
5
Negative logic
Data input
signals A to D
Latching
input LE
3
2
change
H
L
nd
t w: Pulse duration
t h: Hold time
t s: Setup time
-digit display
Data latch
4
Data read
7
Data read
5
Data latch
ts
The "5" display is turned
OFF by the LE signal.
tw
1
change
st
-digit display
(c)Copyright OMRON Corporation 2007 All Rights Reserved.
6
th
Data read
Data latch
6
Data latch
7
Data latch
3
change
rd
Pulse duration (tw)
Hold time (th)
Setup time (ts)
-digit display
8
Data read
1
9
A numeric value is displayed
one digit at a time via data
signals A to D.
Inputs the data signal as
BCD (or binary code).
Low when the decimal
point lights.
Low when all the display
turns OFF. (High is
maintained until the signal
goes low.)
---
---
Description
1.5 ms min.
0.75 ms min.
2.25 ms min.
LE3
latch input signal
(third digit)
LE2
latch input signal
(second digit)
LE1
latch input signal
(first digit)
Data input
signals
M7E
11