Specifications

PART 3 – Analog SocketModems Chapter 10 – SocketModem (MT5692SMI)
Multi-Tech Systems, Inc. Universal Socket Hardware Guide for Developers (S000342P) 157
Operating Conditions
Parameter
Minimum
Maximum
5V Supply Range – Vcc
4.5V 5.5V
3.3V Supply Range – Vcc
3.135V
3.465V
Absolute Maximum Rating
Parameter
Minimum
Maximum
Voltage at Any Signal Pin
GND -0.3V Vcc +3.3V
DC Electrical Characteristics
Serial 5V SocketModem
5VDC Characteristics (VDD = 5V ± 0.25V) VDDMAX = 5.25V
Digital Inputs
–DTR (40), –TXD (35), –RTS (33)
Input High
Min 2.2V
Input Low
Max 0.8V
–Reset (24)
Input High
Min 2.2V
Input Low
Max 0.8V
Digital Outputs
–DCD (39), –CTS (38), –DSR (37), –RI (36), –RXD (34)
Output High
Min 2.9V
Output Low
Max 0.4V
Digital Input Capacitance 50pF
Parallel 5V SocketModem
5VDC Characteristics (VDD = 5V ± 0.25V) VDDMAX = 5.25V
Digital Inputs
A0 (31), A1 (25), –WR (32), –RD (33), –DS (40)
Input High
Min 2.2V
Input Low
Max 0.8V
Digital Outputs
DO (37), D1 (38), D2 (29), D3 (39), D4 (35), D5 (36), D6 (41), D7 (27), INT (30)
Output High
Min 2.4V
Output Low
Max 0.4V
Digital Input Capacitance 50pF
Serial 3.3V SocketModem
3.3VDC Characteristics (VDD = 3.3V ± 0.3V) VDDMAX = 3.6V
Digital Inputs
–DTR (40), –TXD (35), –RTS (33)
Input High
Min 2.2V
Input Low
Max 0.8V
–Reset (24)
Input High
Min 2.2V
Input Low
Max 0.8V
Digital Outputs
–DCD (39), –CTS (38), –DSR (37), –RI (36), –RXD (34)
Output High
Min 2.9V
Output Low
Max 0.4V
Digital Input Capacitance 50pF
Parallel 3.3 V SocketModem
3.3VDC Characteristics (VDD = 3.3V ± 0.3V) VDDMAX = 3.6V
Digital Inputs
A0 (31), A1 (25), A2 (34), –WR (32), –RD (33), –DS (40)
Input High
Min 2V
Input Low
Max 0.8V
Digital Outputs
DO (37), D1 (38), D2 (29), D3 (39), D4 (35), D5 (36), D6 (41), D7 (27), INT (30)
Output High
Min 2V
Output Low
Max 0.4V
Digital Input Capacitance 50pF