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L9177ATR датащи(PDF) 10 Page - STMicroelectronics

номер детали L9177ATR
подробное описание детали  Automotive engine management control IC for small engines
PDF  55 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

L9177ATR датащи(HTML) 10 Page - STMicroelectronics

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2.5.2
Key
Table 7. Key electrical characteristics
Symbol
Parameter
Condition
Min Typ Max Unit
V_Key_L
Input level low
-
-
-
1.5
V
V_Key_H
Input level high
-
3.3
-
-
V
V_Key_Hyst
Input voltage hysteresis
-
0.5
-
1.8
V
R_Key
Internal pull down
-
50 150 300
kΩ
T_key_deglitch Key input filter time
Guaranteed by scan
26
-
40
µs
T_key_delay
Maximum delay time from Key to regulator enable
Time from key rising edge to 20% VDD rising
edge
-
-
200
µs
Figure 3. Input threshold
ON
V_Key_Hyst
V_Key_L
V_Key_H
OFF
GADG1911180723PS
Figure 4. Key block diagram
GAPGPS00588
2.5.3
Digital pins
Table 8. Digital pins characteristics
Symbol
Parameter
Condition
Min
Typ
Max
Unit
V in_L
Input level low
-
-
-
0.3*VDD
V
V in_H
Input level high
-
0.7*VDD
-
-
V
V h in
Input voltage hysteresis
-
0.1
-
-
V
R_pull
Internal pull-down/pull-up (1)(2)(3)
-
50
150
250
kΩ
I_pull_down
Active pull-down
-
10
-
100
µA
1. Pins with active pull-down: DIR.
2. Pins with pull-down: EN, PWM, ISL-TACH, INO2H, IN_REL1-2, IN1-2;
3. Pins with pull-up: SI, SCK, CS, KL-TX;
L9177A
Electrical characteristics
DS12175 - Rev 5
page 10/55



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