Overview

Part: SP3222E, SP3232E series

Type: RS-232 Transceiver

Key Specs:

Power Supply Range: 3.0V to 5.5V
Charge Pump Capacitors: 0.1µF (in 3.3V operation)
Driver/Receiver Configuration: 2-driver / 2-receiver
ESD Tolerance (Human Body Model): ±15kV
ESD Tolerance (IEC61000-4-2 Air Discharge): ±15kV
ESD Tolerance (IEC61000-4-2 Contact Discharge): ±8kV
Minimum Data Rate: 120kbps
Shutdown Supply Current (SP3222E): 1.0µA (typical)
Output Voltage Swing: ±5.0V (minimum)

Features:

Meets true EIA/TIA-232-F standards from a 3.0V to 5.5V power supply
Minimum 120kbps data rate under full load
1µA low power shutdown with receivers active (SP3222E)
Interoperable with RS-232 down to a 2.7V power source
Enhanced ESD specifications: ±15kV Human Body Model, ±15kV IEC61000-4-2 Air Discharge, ±8kV IEC61000-4-2 Contact Discharge

Applications:

Portable or hand-held applications
Notebook computers
Palmtop computers

Package:

20-pin SSOP
18-pin SOIC
20-pin TSSOP
16-pin SSOP
16-pin PDIP
16-pin WSOIC
16-pin TSSOP
16-pin NSOIC

Features

Meets true EIA/TIA-232-F standards from a 3.0V to 5.5V power supply
Minimum 120kbps data rate under full load
1µA low power shutdown with receivers active (SP3222E)
Interoperable with RS-232 down to a 2.7V power source
Enhanced ESD specifications:
□ ±15kV Human Body Model
□ ±15kV IEC61000-4-2 Air Discharge
□ ±8kV IEC61000-4-2 Contact Discharge

Ordering Information - Page 21

Applications

REV 1.0.3 1/21

Pin Configuration

| | | | Pin Number | |----------|-----------------------------------------------------------------------------------------------------------------------------------------------------|---------|---------------|---------| | Pin Name | Pin Function / Description | SP3222E | | | | SOIC | SSOP
TSSOP | SP3232E | | EN | Receiver Enable. Apply logic LOW for normal operation.
Apply logic HIGH to disable the receiver outputs (high-Z state). | 1 | 1 | - | | C1+ | Positive terminal of the voltage doubler charge-pump capacitor | 2 | 2 | 1 | | V+ | 5.5V output generated by the charge pump | 3 | 3 | 2 | | C1- | Negative terminal of the voltage doubler charge-pump capacitor | 4 | 4 | 3 | | C2+ | Positive terminal of the inverting charge-pump capacitor | 5 | 5 | 4 | | C2- | Negative terminal of the inverting charge-pump capacitor | 6 | 6 | 5 | | V- | -5.5V output generated by the charge pump | 7 | 7 | 6 | | T1OUT | RS-232 driver output | 15 | 17 | 14 | | T2OUT | RS-232 driver output | 8 | 8 | 7 | | R1IN | RS-232 receiver input | 14 | 16 | 13 | | R2IN | RS-232 receiver input | 9 | 9 | 8 | | R1OUT | TTL/CMOS receiver output | 13 | 15 | 12 | | R2OUT | TTL/CMOS receiver output | 10 | 10 | 9 | | T1IN | TTL/CMOS driver input | 12 | 13 | 11 | | T2IN | TTL/CMOS driver input | 11 | 12 | 10 | | GND | Ground | 16 | 18 | 15 | | VCC | 3.0V to 5.5V supply voltage | 17 | 19 | 16 | | SHDN | Shutdown Control Input. Drive HIGH for normal device operation.
Drive LOW to shutdown the drivers (high-Z output) and the on-board power supply. | 18 | 20 | - | | N.C. | No connect | - | 11, 14 | - |

Table 1: Device Pin Description

Pinouts

Figure 4: Pinout Configurations for the SP3222E

Figure 5: Pinout Configurations for the SP3232E

Electrical Characteristics

Unless otherwise noted, the following specifications apply for $V_{CC} = 3.0V$ to 5.5V with $T_{AMB} = T_{MIN}$ to $T_{MAX}$ , typical values apply at $V_{CC} = 3.3V$ or 5.0V and $T_{AMB} = 25^{\circ}C$ .

PARAMETERS	MIN.	TYP.	MAX.	UNITS	CONDITIONS
DC Characteristics
Supply current		0.3	1.0	mA	no load, $V_{CC}$ = 3.3V, $T_{AMB}$ = 25°C, $T_{XIN}$ = GND or $V_{CC}$
Shutdown supply current		1.0	10	μA	$\frac{\text{SHDN}}{\text{SHDN}} = \text{GND, V}{\text{CC}} = 3.3\text{V,}$ $T{\text{AMB}} = 25^{\circ}\text{C, TxIN} = \text{Vcc or GND}$
Logic Inputs and Receiver Outputs
Input logic threshold LOW			0.8	V	TxIN, EN, SHDN ⁽²⁾
Input logic threshold HIGH	2.0		V _CC	V	V _CC = 3.3V ⁽²⁾
Input logic threshold HIGH	2.4		V _CC	V	V _CC = 5.0V ⁽²⁾
Input leakage current		+ 0.01	+ 1.0	μA	TxIN, EN, SHDN, T _AMB = 25°C, V _IN = 0V to V _CC
Output leakage current		+ 0.05	+ 10	μΑ	Receivers disabled, V _OUT = 0V to V _CC
Output voltage LOW			0.4	V	I _OUT = 1.6mA
Output voltage HIGH	V _CC - 0.6	V _CC - 0.1		V	I _OUT = -1.0mA
Driver Outputs
Output voltage swing	+ 5.0	+ 5.4		V	All driver outputs loaded with $3k\Omega$ to GND, $T_{AMB} = 25^{\circ}C$
Output resistance	300			Ω	V _CC = V+ = V- = 0V, T _OUT = + 2V
Output short-circuit current		+ 35	+ 60	mA	V _OUT = 0V
Output leakage current			+ 25	μA	V _CC = 0V or 3.0V to 5.5V, V _OUT = ±12V, drivers disabled

Absolute Maximum Ratings

These are stress ratings only and functional operation of the device at these ratings or any other above those indicated in the operation sections of the specifications below is not implied. Exposure to absolute maximum rating conditions for extended periods of time may affect reliability and cause permanent damage to the device.

V _CC	0.3V to 6.0V
V+ ⁽¹⁾	0.3V to 7.0V
V- ⁽¹⁾	0.3V to -7.0V
V+ + V- ⁽¹⁾	13V
I _CC (DC V _CC or GND current)	±100mA
Input Voltages
TxIN, EN, SHDN	0.3V to $(V_{CC} + 0.3V)$
RxIN	±25V
Output Voltages
TxOUT	±13.2V
RxOUT	0.3V to (V _CC + 0.3V)

| Short-Circuit Duration | |------------------------|------------| | TxOUT | Continuous |

Storage Temperature.....-65°C to +150°C

Power Dissipation per package

20-pin SSOP (derate 9.25mW/°C above 70°C)......750mW 18-pin SOIC (derate 15.7mW/°C above 70°C)......1260mW 20-pin TSSOP (derate 11.1mW/°C above 70°C)......890mW 16-pin SSOP (derate 9.69mW/°C above 70°C)......775mW 16-pin PDIP (derate 14.3mW/°C above 70°C)......1150mW 16-pin WSOIC (derate 11.2mW/°C above 70°C).....900mW 16-pin TSSOP (derate 10.5mW/°C above 70°C).....850mW 16-pin NSOIC (derate 13.57mW/°C above 70°C)...1086mW

NOTE:

V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.

Electrical Characteristics

Unless otherwise noted, the following specifications apply for $V_{CC} = 3.0V$ to 5.5V with $T_{AMB} = T_{MIN}$ to $T_{MAX}$ , typical values apply at $V_{CC} = 3.3V$ or 5.0V and $T_{AMB} = 25^{\circ}C$ .

PARAMETERS	MIN.	TYP.	MAX.	UNITS	CONDITIONS
DC Characteristics
Supply current		0.3	1.0	mA	no load, $V_{CC}$ = 3.3V, $T_{AMB}$ = 25°C, $T_{XIN}$ = GND or $V_{CC}$
Shutdown supply current		1.0	10	μA	$\frac{\text{SHDN}}{\text{SHDN}} = \text{GND, V}{\text{CC}} = 3.3\text{V,}$ $T{\text{AMB}} = 25^{\circ}\text{C, TxIN} = \text{Vcc or GND}$
Logic Inputs and Receiver Outputs
Input logic threshold LOW			0.8	V	TxIN, EN, SHDN ⁽²⁾
Input logic threshold HIGH	2.0		V _CC	V	V _CC = 3.3V ⁽²⁾
Input logic threshold HIGH	2.4		V _CC	V	V _CC = 5.0V ⁽²⁾
Input leakage current		+ 0.01	+ 1.0	μA	TxIN, EN, SHDN, T _AMB = 25°C, V _IN = 0V to V _CC
Output leakage current		+ 0.05	+ 10	μΑ	Receivers disabled, V _OUT = 0V to V _CC
Output voltage LOW			0.4	V	I _OUT = 1.6mA
Output voltage HIGH	V _CC - 0.6	V _CC - 0.1		V	I _OUT = -1.0mA
Driver Outputs
Output voltage swing	+ 5.0	+ 5.4		V	All driver outputs loaded with $3k\Omega$ to GND, $T_{AMB} = 25^{\circ}C$
Output resistance	300			Ω	V _CC = V+ = V- = 0V, T _OUT = + 2V
Output short-circuit current		+ 35	+ 60	mA	V _OUT = 0V
Output leakage current			+ 25	μA	V _CC = 0V or 3.0V to 5.5V, V _OUT = ±12V, drivers disabled

Electrical Characteristics (Continued)

Unless otherwise noted, the following specifications apply for VCC = 3.0V to 5.5V with TAMB = TMIN to TMAX, typical values apply at VCC = 3.3V or 5.0V and TAMB = 25°C.

PARAMETERS	MIN.	TYP.	MAX.	UNITS	CONDITIONS
Receiver Inputs
Input voltage range	-15		15	V
Input threshold LOW	0.6	1.2		V	VCC = 3.3V
Input threshold LOW	0.8	1.5		V	VCC = 5.0V
Input threshold HIGH		1.5	2.4	V	VCC = 3.3V
Input threshold HIGH		1.8	2.4	V	VCC = 5.0V
Input hysteresis		0.3		V
Input resistance	3	5	7	kΩ
Timing Characteristics
Maximum data rate	120	235		kbps	RL = 3kΩ, CL = 1000pF, one driver switching
Driver propagation delay, tPHL		1.0		µs	RL = 3kΩ, CL = 1000pF
Driver propagation delay, tPLH		1.0		µs	RL = 3kΩ, CL = 1000pF
Receiver propagation delay, tPHL		0.3		µs	Receiver input to receiver output, CL = 150pF
Receiver propagation delay, tPLH		0.3		µs	Receiver input to receiver output, CL = 150pF
Receiver output enable time		200		ns
Receiver output disable time		200		ns
Driver skew		100	500	ns	tPHL - tPLH , TAMB = 25°C
Receiver skew		200	1000	ns	tPHL - tPLH
Transition-region slew rate			30	V/µs	VCC = 3.3V, RL = 3kΩ, CL = 1000pF, TAMB = 25°C, measurements taken from -3.0V to 3.0V or 3.0V to -3.0V

NOTE:

Driver input hysteresis is typically 250mV.

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