SC623 データシートの表示（PDF） - Semtech Corporation
部品番号
コンポーネント説明
メーカー
SC623
Semtech Corporation
SC623 Datasheet PDF : 21 Pages
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SC623
Electrical Characteristics (continued)
Parameter
Symbol
Conditions
Min Typ Max Units
Digital I/O Electrical Specifications (FLEN, SWIF)
Input High Threshold
V
IH
V = 5.5V
1.6
V
IN
Input Low Threshold
V
IL
V = 3.0V
IN
0.4
V
Input High Current
I
IH
V = 5.5V
IN
-1
+1
μA
Input Low Current
I
IL
V = 5.5V
IN
-1
+1
μA
SemWire Bit Rate
f
SWIF
10
75 kbit/s
SemWire Start-up Time(5)
t
EN
1
ms
SemWire Disable Time(6)
t
DIS
10
ms
SemWire Data Latch Delay(7)
D
DL
5
bit
Notes:
(1) ΔV is the voltage difference between any two LEDs.
F
(2) Once tripped, flash output will remain disabled until FLEN pin is cycled or reset via serial interface.
(3) Current matching equals ± [I - I ] / [I + I ].
BL(MAX) BL(MIN
BL(MAX) BL(MIN)
(4) Test voltage is VOUT = 4.0V — a relatively extreme LED voltage — to force a transition during test. Typically VOUT = 3.2V for white LEDs.
(5) The SemWire start-up time is the minimum period that the SWIF pin must be held high to enable the part before commencing
communication.
(6) The SemWire disable time is the minimum period that the SWIF pin must be pulled low to shut the part down.
(7) The SemWire data latch delay is the maximum duration after communication has ended before the register is updated.
5
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