參數資料
型號: DS229N
廠商: DALLAS SEMICONDUCTOR
元件分類: Line Driver or Receiver
英文描述: LINE TRANSCEIVER, PDIP20
封裝: DIP-20
文件頁數: 24/29頁
文件大?。?/td> 1710K
代理商: DS229N
MAX14640–MAX14644/MAX14651
USB Host Adapter Emulators
4
Maxim Integrated
ELECTRICAL CHARACTERISTICS (continued)
(VCC = 3.0V to 5.5V, TA = -40NC to +85NC, unless otherwise noted. Typical values are at VCC = 5.0V and TA = +25NC.) (Note 2)
Note 2: All units are production tested at TA = +25NC. Specifications over temperature are guaranteed by design.
Note 3: The MAX1464_ is operational from 3.0V to 5.5V. However, in order for the valid Apple resistor-divider network to function,
VCC must stay within the 4.75V to 5.25V range.
Note 4: Guaranteed by design, not production tested.
Note 5: Guaranteed by design.
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
VDP_REF Voltage
VDP_REF
0.25
0.4
V
VLGC Voltage
VLGC
0.8
2.0
V
IDP_SINK Current
IDP_SINK VDP = 0.15V to 3.6V
50
150
F
A
LOGIC INPUTS (CB0, CB1, SDA, SCL)
Input Logic High Voltage
VIH
1.4
V
Input Logic Low Voltage
VIL
0.4
V
Input Leakage Current
IIN
0V P VIN P VIL or VIH P VIN P VCC,
VCC = 5.5V
-1
+1
F
A
CB0/CB1 Debounce Time
tDEB_CB_
250
F
s
OPEN-DRAIN LOGIC OUTPUTS (SDA, INT, CEN, CEN)
INT, SDA, CEN Output Low
Voltage
VOL
Output asserted, ISINK = 4mA
0.4
V
INT, SDA, CEN Output Leakage
Current
IOH
Output not asserted, VCC = VOUT = 5.5V
1
F
A
CEN, INT, Output High Voltage
VOH
Output asserted, ISOURCE = 4mA
VCC - 0.4
V
CEN, INT, Output Leakage Current
IOL
Output not asserted, VCC = 5.5V, VCEN = 0V
1
F
A
VBUS Toggle Time Accuracy
tVBT
Q
10
%
I2C TIMING CHARACTERISTICS (SEE FIGURE 4)
I2C Maximum Clock Frequency
fSCL
400
kHz
Bus Free Time Between STOP
and START Conditions
tBUF
1.3
F
s
START Condition Setup Time
tSU:STA
0.6
F
s
Repeated START Condition
Setup Time
tSU:STA
70% of SCL to 70% of SDA
0.6
F
s
START Condition Hold Time
tHD:STA
30% of SDA to 70% of SCL
0.6
F
s
STOP Condition Setup Time
tSU:STO
70% of SCL to 30% of SDA
0.6
F
s
Clock Low Period
tLOW
30% to 30%
1.3
F
s
Clock High Period
tHIGH
70% to 70%
0.6
F
s
Data Valid to SCL Rise Time
tSU:DAT
Write setup time
100
ns
Data Hold Time to SCL Fall
tHD:DAT
Write hold time
100
ns
PROTECTION SPECIFICATIONS
ESD Protection
VESD
Human Body Model
DP and DM pins
Q
15
kV
All other pins
Q
2
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