ST485AD 데이터 시트보기 (PDF) - STMicroelectronics
부품명
상세내역
제조사
ST485AD Datasheet PDF : 12 Pages
| |||
ST485
DC ELECTRICAL CHARACTERISTICS
(VCC = 5V ± 5%, TA = TMIN to TMAX , unless otherwise specified. Typical values are referred to TA = 25°C)
(See Note 1)
Symbol
Parameter
Test Conditions
VOD1
VOD2
∆VOD
VOC
∆VOC
VIH
VIL
IIN1
IIN2
VTH
∆VTH
VOH
VOL
IOZR
RIN
ICC
IOSD1
IOSD2
IOSR
Differential Driver Output
(No Load)
Differential Driver Output
(With Load)
Change in Magnitude of
Driver Differential Output
Voltage for Complementary
Output States
Driver Common-Mode
Output Voltage
Change in Magnitude of
Driver Common-Mode
Output Voltage for
Complementary Output
States
Input High Voltage
RL = 27Ω (RS-485) (See Fig. 1)
RL = 50Ω (RS-422) (See Fig. 1)
RL = 27Ω or 50Ω (See Fig. 1)
RL = 27Ω or 50Ω (See Fig. 1)
RL = 27Ω or 50Ω (See Fig. 1)
RE, DE, DI
Input Low Voltage
RE, DE, DI
Input Current
RE, DE, DI
Input Current (A, B)
VCM = 0V or 5.25V
VIN = 12V
VIN = -7V
VDE = 0V
Receiver Differential
Threshold Voltage
VCM = -7 to 12V
Receiver Input Hysteresis VCM = 0V
Receiver Output High
Voltage
IO = -4mA VID = 200mV
Receiver Output Low
Voltage
IO = 4mA VID = -200mV
3-State (High Impedance) VO = 0.4 to 2.4V
Output Current at Receiver
Receiver Input Resistance VCM = -7 to 12V
No Load Supply Current
(Note 2)
VRE = 0V or VCC
VDE = VCC
VDE = 0V
Driver Short-Circuit Current, VO = -7 to 12V (Note 3)
VO=High
Driver Short-Circuit Current, VO = -7 to 12V (Note 3)
VO=Low
Receiver Short-Circuit
Current
VO = 0V to VCC
Min. Typ. Max. Unit
5
V
1.4
5
V
5
V
0.2
V
3
V
0.2
V
2.0
V
0.8
V
±2
µA
1
mA
-0.8 mA
-0.2
0.2
V
70
mV
3.4
V
0.5
V
±1
µA
24
KΩ
400 900
µA
300 500
µA
35
250 mA
35
250 mA
7
95
mA
Note 1: All currents into device pins are positive; all cuttents out of device pins are negative; all voltages are referenced to device ground
unless specified.
Note 2: Supply current specification is valid for loaded transmitters when VDE = 0V
Note 3: Applies to peak current. See typical Operating Characteristics.
3/12
Share Link: 