ACS101A 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
一致するリスト
ACS101A Datasheet PDF : 12 Pages
| |||
Absolute Maximum Ratings
Dynamic Characteristics
Parameter
Symbol Min
Max Units
Parameter
Symbol Min Typ Max Units
Power supply VD+ and VA+
(VDD = VD+ or VA+)
Input voltage
(non-supply pins)
Input current
(except LDN,LDP,CNT,VG)
Input current
( LDN,LDP,CNT)
Storage temperature
VDD
-0.3
6.0
V
Vin
GND - 0.3
VDD +
0.3
V
Iin
-
10.0 mA
Iin
-
Tstor
-50
1.0
mA
160
ºC
Operating Conditions
Parameter
Power supply
(VA+ and VD+)
2 Ambient temperature range
Symbol Min Typ Max Units
V+ 4.75 5.0 5.25 V
TA -40 -
85 ºC
Crystal frequency
(XTI, XTO)
External clock (XTI)
High or Low time
RxD and TxD data rate
Synchronous Short range:
Standard:
Double:
Asynchronous Short range:
Standard:
Double:
RxCL and TxCL duty cycle
(with TxCL = output)
Frequency deviation at TxCL
from selected value
(with TxCL = input)
TxD to TxCL set-up time
TxD to TxCL hold time
RxD to RxCL set-up time
RxD to RxCL hold time
frc
5 9.216 19 MHz
fcl
40
-
60 %
4.8
2.4
fckc 9.6
DC
DC
DC
512
256
-
64 kbps
76.8
38.4
19.2
twh
twl
-
50
-%
Fd
-
- 500 ppm
tsut 300 -
- ns
tht
25
-
-
s
tsur
-
0.5
*1/RxCL
-
ns
thr
-
0.5
*1/RxCL
-
ns
Static Digital Input Characteristics (for specified operating conditions)
Input pins: DR1/2/3/4, DP1/2/3, DM1/2/3, CKC, RSS, TxD, RTS, DTR, XTI, DI, PORB, TxCL(input).
Parameter
Vin High
Symbol Min Typ Max Units
Vih 2.0 -
-
V
Digital output - fall time
Digital output - rise time
Power consumption:
TRC floating (or 100kOhm)
TRC tied to GND
(Note 3)
tf
-
- 100 ns
tr
-
- 100 ns
Pc
-
155
85
230
120
mW
Vin Low
Vil
-
- 0.8 V
Note 3: Power consumption assumes that digital outputs drive CMOS loads. includes LED.
Vin High (PORB, XTI)
Vin Low (PORB, XTI)
Pull-up resistor
(except XTI and TxCL)
Input current (Note 1)
Vih
0.8 *
VD+
-
-
V
Vil
-
-
0.2 *
VD+
V
PU 50k 125k 340k Ω
Iin
-
- 100 µA
Matching Characteristics (for specified operating conditions)
Parameter
Symbol Min Typ Max Units
Crystal tolerance
use parallel resonant crystal and
Ct -100 0
recommended padding capacitors
100 ppm
Note 1: Input current is mainly attributed to pull-up resistor, so it applies when input is low. The
high input current is < +/-10 µA.
Amplifier sensitivity
input current
Irec 500 -
- nA
Maximum amplifier input current Imax 1
2
- mA
Static Digital Output Characteristics (for specified operating conditions)
Output pins: RxD, CTS, DSR, DCDB, LIN, ERD, XLO, RxCL, TxCL(output).
Parameter
Vout Low (Iout = 4mA)
Vout High (Iout = 4mA)
Symbol Min Typ Max Units
Vol
0
-
Voh
VDD-
0.5
-
0.5 V
-
V
Rtrc placed between TRC and
GND
LED current with TRC floating
peak current:
average curent:
(Note 4)
LED capacitance
with Vr = 0 Volts
(Note 5)
Rtrc 0
Icur
70
14
Cled -
-
-Ω
-
-
130
26
mA
- 100 pF
Max load capcitance
Cl
-
-
50 pF
LED leakage current
Vr = 1.8 Volts
Cl
-
1 100 nA
XLO (Note 2)
-
-
-
-
pF
LED reverse bias (Note 6)
Vr
-
0
-
V
Note 2: XLO does not have a drive capability other than that of the load presented by a parallel resonant
crystal and appropriate padding capacitor.
Note 4: The LED is switched on for approximately 1/5th of the time, with a cycle of 160 µs at
9.216MHz.
Note 5: The ACS101A is at its best with low capacitance LEDs - Acapella is able to supply LEDs with
lower than 20pF capacitance.
Note 6: The ACS101A incorporates a differential receiver front end. Single ended reception,
compatible with the ACS101 is still selectable by connecting VG, pin 38, low, in which case the
LED reverse bias will be as specified for the ACS101, 1.3 to 1.8v.
ACS101A Issue 1.2 October 1999.
8
Share Link: 