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參數(shù)資料
| 型號(hào)： | AS2590 |
| 廠商： | AUSTRIAMICROSYSTEMS AG |
| 英文描述： | LC DISPLAY DRIVER WITH 18 DIGITS, 6 SYMBOLS AND CLOCK/TIMER |
| 中文描述： | 立法會(huì)顯示驅(qū)動(dòng)器，帶有18個(gè)數(shù)字，符號(hào)和6時(shí)鐘/計(jì)時(shí)器 |
| 文件頁(yè)數(shù)： | 8/12頁(yè) |
| 文件大?。?/td> | 78K |
| 代理商： | AS2590 |
8
Data Sheet
AS2590
Rev. 1
Dec. 1993
SDA/SCL
Serial Interface
Fig. 5
f
CL
f
CLH
f
CLL
f
CD
f
SOH
f
SOL
f
HD
f
SUSO
f
HSA
f
GAP
Clock Frequency
10
kHz
Clock High Time
50
μ
s
μ
s
Clock Low Time
50
Clock Low to Data Change
20
t
CLL
ns
Stop Bit High Time
50
μ
s
μ
s
Stop Bit Low Time
50
Data Hold Time
200
ns
Clock Setup for Stop
200
ns
Clock Hold for Start
200
ns
Data High between 2 Words
100
μ
s
BP0…3
Back Plane Outputs
Figure 6, note 1
t
BRON
t
BFON
t
BROF
t
BFOF
t
BC
S0…32
Rise Time, on
20
μ
s
μ
s
μ
s
μ
s
Fall Time, on
20
Rise Time, off
20
Fall Time, off
20
Cycle Frequency
128
Hz
Segment Outputs
Figure 7, note 2
t
SRON
t
SFON
t
SROF
t
SFOF
t
SC
Rise Time, on
20
μ
s
μ
s
μ
s
μ
s
Fall Time, on
20
Rise Time, off
20
Fall Time, off
20
Cycle Frequency
128
Hz
t
TIMER
Timer Display Time
Note 3
5
6
sec
t
XUP
Oscillator Startup Time
R
BIAS
= 2.2 M
300
ms
AC Characteristics
(V
DD
= 3.0V; T
AMB
= -25 to 70
°
C, unless otherwise specified)
Symbol
Parameter
Conditions
Min
Typ
Max
Units
Note 1: Loads on backplanes = 3 000 pF//10 M
Note 2: Loads on segments = 360 pF//1 M
Note 3: After BLANK ALL command and timer has been started with a valid start command, timer content is displayed.
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