Datasheet

SLR2016, SLO2016, SLG2016, SLY2016, SCD5584A
2006-01-23 4
Timing Characteristics—Write Cycle Waveforms
Loading Data
The desired data code (D0–D6) and digit address (A0, A1) must
be held stable during the write cycle for storing new data.
Data entry may be asynchronous. Digit 0 is defined as right hand
digit with A1=A2=0.
Clearing the entire internal four-digit memory can be accomplished
by holding the clear (CLR) low for 1.0 msec minimum. The clear
function will clear the ASCII RAM. Loading an illegal data code will
display a blank.
Pin Function
Pin Function Pin Function
1 WR Write 8 D3 Data
2 A1 Digit Select 9 D4 Data
3 A0 Digit Select 10 D5 Data
4 V
CC
11 D6 Data
5 D0 Data 12 BL Display Blank
6 D1 Data 13 CLR Clear
7 D2 Data 14 GND
Pin Function
Pin Function Pin Function
DC Characteristics at 25°C
Parameters Min. Typ. Max. Units Conditions
V
CC
4.5 5.0 5.5 V —
I
CC
Blank — 2.3 3.0 mA V
CC
=5.0 V
I
CC
(80 dots on) — 80 105 mA V
CC
=5.0 V
V
IL
(all inputs) — — 0.8 V 4.5 V <V
CC
<5.5 V
V
IH
(all inputs) 2.0 — — V 4.5 V <V
CC
<5.5 V
I
IL
(all inputs) 25 — 100 µA 4.5 V <V
CC
<5.5 V, V
IN
=0.8 V
AC Characteristics (guaranteed minimum timing
parameters at V
CC
=5.0 V ±0.5 V)
Parameter Symbol –40°C +25°C +85°C Unit
Address Set
Up Time
T
AS
10 10 10 ns
Write Time T
W
60 70 90 ns
Data Set Up
Time
T
DS
20 30 50 ns
Address Hold
Time
T
AH
20 30 40 ns
Data Hold
Time
T
DH
20 30 40 ns
Access Time T
ACC
(1)
90 110 140 ns
Clear Disable
Time
T
CLRD
1.0 1.0 1.0 µs
Clear Time T
CLR
1.0 1.0 1.0 ms
Note:
1)
T
ACC
=Set Up Time + Write Time + Hold Time
T
AS
T
DH
T
AH
T
DS
T
ACC
T
W
W
R
CLR
A0 – A1
D
0 – D6
2.0 V
0.8 V
2.0 V
0.8 V
2.0 V
0.8 V