ADM1385ARSZ Analog Devices Inc, ADM1385ARSZ Datasheet - Page 5

• Manufacturer Part Number: ADM1385ARSZ
• Description: IC TXRX RS-232 HI-SP 3.3V 20SSOP
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM1385ARSZ

• Number Of Drivers/receivers: 2/2
• Protocol: RS232
• Voltage - Supply: 3 V ~ 3.6 V
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP
• Device Type: Transceiver
• Ic Interface Type: RS232
• No. Of Drivers: 2
• Supply Voltage Range: 3V To 5.5V
• Driver Case Style: SSOP
• No. Of Pins: 20
• Operating Temperature Range: -40°C To +85°C
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
PIN CONFIGURATIONS (N, RN, RU, AND RW PACKAGES)
PIN CONFIGURATIONS (RS AND RU PACKAGES)
Table 3. Pin Function Descriptions
Mnemonic
V
V+
V–
GND
C1+, C1–
C2+, C2–
Tx
Tx
Rx
Rx
EN
SD
SD
DD
NC
CC
IN
OUT
IN
OUT
Figure 4. N, RN, RU, and RW Packages Pin Configuration
Figure 6. RS and RU Packages Pin Configuration
Description
Ground Pin. Must be connected to 0 V.
are disabled.
No Connect.
Power Supply Input (3.3 V ± 0.3 V).
Internally Generated Positive Supply (+6 V nominal).
Internally Generated Negative Supply (−6 V nominal).
External Capacitor 1 is connected between these pins. A 0.1 μF capacitor is recommended but larger capacitors up to 47 μF
can be used.
External Capacitor 2 is connected between these pins. A 0.1 μF capacitor is recommended but larger capacitors up to 47 μF
can be used.
Transmitter (Driver) Inputs. These inputs accept TTL/CMOS levels.
Transmitter (Driver) Outputs. These are RS-232 signal levels (typically ±9 V).
Receiver Inputs. These inputs accept RS-232 signal levels. An internal 5 kΩ pull-down resistor to GND is connected on each input.
Receiver Outputs. These are CMOS output logic levels.
(ADM3222 only) Receiver Enable. Active low. When low, the receiver outputs are enabled. When high, they are three-stated.
(ADM3222 only) Shutdown Control. Active low. When low, the charge pump is shut down and the transmitter outputs
(ADM1385 only) Shutdown Control. When low, the charge pump is shut down and all transmitters and receivers are disabled.
(ADM1385 only) Driver Disable. When low, the charge pump is turned off and the transmitters are disabled. The receivers
remain active.
T2
R2
T2
R2
C1+
C1–
C2+
C2–
OUT
R2
C1+
C2+
C1–
C2–
OUT
OUT
V+
V–
EN
IN
V+
V–
IN
10
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
9
NC = NO CONNECT
(SSOP/TSSOP)
(Not to Scale)
(Not to Scale)
ADM3222
ADM3202
TOP VIEW
TOP VIEW
20
19
18
17
16
15
14
13
12
11
16
15
14
13
12
11
10
9
SD
V
GND
T1
R1
R1
NC
T1
T2
NC
V
GND
T1
R1
R1
T1
T2
R2
CC
CC
OUT
IN
IN
IN
OUT
OUT
IN
IN
IN
OUT
OUT
Rev. D | Page 5 of 12
Figure 5. N and RW Packages Pin Configuration
T2
Figure 7. RS Package Pin Configuration
T2
R2
ADM3202/ADM3222/ADM1385
R2
C1+
C1–
C2+
C2–
OUT
C1+
C1–
C2+
C2–
OUT
DD
NC
V+
V–
EN
V+
V–
IN
IN
10
1
2
3
4
5
6
7
8
9
1
2
3
4
5
6
7
8
9
NC = NO CONNECT
(Not to Scale)
(Not to Scale)
ADM3222
ADM1385
TOP VIEW
TOP VIEW
(SSOP)
18
17
16
15
14
13
12
11
10
20
19
18
17
16
15
14
13
12
11
SD
V
GND
T1
R1
R1
T1
T2
R2
SD
V
GND
T1
R1
R1
T1
T2
R2
NC
CC
CC
OUT
IN
IN
IN
OUT
OUT
OUT
IN
IN
IN
OUT
OUT