ST3485ECDR STMicroelectronics, ST3485ECDR Datasheet - Page 8

• Manufacturer Part Number: ST3485ECDR
• Description: TXRX RS485/422 3.3V ESD 8-SOIC
• Manufacturer: STMicroelectronics
• Type: Transceiverr

Specifications of ST3485ECDR

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Supply Voltage (max): 3.6 V
• Supply Voltage (min): 3 V
• Maximum Operating Temperature: 85 C
• Mounting Style: SMD/SMT
• Data Rate: 15 Mbps
• Interface: RS-422 or RS-485
• Minimum Operating Temperature: - 40 C
• Supply Current: 2.2 mA
• Device Type: Transceiver
• Interface Type: RS422, RS485
• No. Of Drivers: 1
• Supply Voltage Range: 3V To 3.6V
• Driver Case Style: SOIC
• No. Of Pins: 8
• Operating Temperature Range: 0°C To +70°C
• Svhc: No
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-6540-2; ST3485ECDR

Table 12.
Note:
8/22
t
t
Symbol
ZH(SHDN)
ZL(SHDN)
t
RPDS
t
t
t
t
t
t
PZH
PHZ
PLH
PHL
PZL
PLZ
1
2
3
Propagation delay
|t
delay skew
Output enable time
Output enable time
Output disable time
Output disable time
Receiver enable from
shutdown to output high
Receiver enable from
shutdown to output low
Receiver switching characteristics
V
to T
state.
Measured on |t
The transceivers are put into shutdown by bring RE high and DE low. If the input are in state
for less than 80 ns, the part are guaranteed not to enter shutdown. If the inputs are in this
state for at least 300 ns, the parts are guaranteed to have entered shutdown.
Δ
PLH -
CC
V
OD
A
= 3 V to 3.6 V, T
t
= 25 °C)
PHL
Parameter
and
| Propagation
Δ
V
OC
PLH
are the changes in V
(A)-t
A
= -40 to 85 °C, unless otherwise specified. Typical values are referred
PHL
V
(Figure 12
V
(Figure 12
C
C
C
C
C
C
ID
ID
RL
RL
RL
RL
RL
RL
(A)| and |t
=0V to 3V, C
=0V to 3V, C
= 15pF,
= 15pF,
= 15pF,
= 15pF,
= 15pF,
= 15pF,
and
and
Test conditions
(Figure 14
(Figure 14
(Figure 14
(Figure 14
(Figure 14
(Figure 14
PLH
OD
Figure
Figure
L1
L1
(B)-t
and V
= 15pF
= 15pF
PHL
13)
13)
and
and
and
and
and
and
OC
(B)|
, respectively, when the DI input changes
Figure
Figure
Figure
Figure
Figure
Figure
18)
18)
18)
18)
18)
18)
Min.
Typ.
30
10
10
10
10
10
20
1
Max.
50
20
20
20
20
20
40
3
Unit
ns
ns
ns
ns
ns
ns
ns
µs