Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS General Description
The AZ75232 combines three drivers and five receivers, which conform to the EIA/TIA-232-F and ITU v.28 standards. Each receiver converts EIA/TIA-232-F inputs to 5-V TTL/CMOS levels and each driver converts TTL/CMOS input levels into EIA/TIA-232-F levels. The flow-through pinout facilitates simple non-crossover board layout. The AZ75232 provides a one-chip solution for the common 9-pin serial RS-232 interface between data terminal and data communications equipment. The AZ75232 is available in SOIC-20, SSOP-20 and TSSOP-20 packages.
AZ75232
Features
· · · · · Single Chip with Easy Interface between UART and Serial-Port Connector Meet the Requirement of EIA/TIA-232-F and ITU v.28 Standards Designed to Support Data Rates up to 120kbit/s 3 Drivers and 5 Receivers Flow-Through Pinout
Applications
· · Mother Board Peripheral Equipment
SOIC-20
SSOP-20
TSSOP-20
Figure 1. Package Types of AZ75232
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Pin Configuration
M/GS/G Package (SOIC-20/SSOP-20/TSSOP-20)
AZ75232
VDD RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS
1 2 3 4 5 6 7 8 9 10
20 19 18 17 16 15 14 13 12 11
VCC RY1 RY2 RY3 DA1 DA2 RY4 DA3 RY5 GND
Figure 2. Pin Configuration of AZ75232 (Top View)
Pin Description
Pin Number 1 2 3 4 5 6 7 8 9 10 Pin Name VDD RA1 RA2 RA3 DY1 DY2 RA4 DY3 RA5 VSS Function Positive Supply Voltage for Driver Receiver Input Receiver Input Receiver Input Driver Output Driver Output Receiver Input Driver Output Receiver Input Negative Supply Voltage for Driver Pin Number 11 12 13 14 15 16 17 18 19 20 Pin Name GND RY5 DA3 RY4 DA2 DA1 RY3 RY2 RY1 VCC Ground Receiver Output Driver Input Receiver Output Driver Input Driver Input Receiver Output Receiver Output Receiver Output Supply Voltage for Receiver Function
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Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Functional Block Diagram
VDD 1 2 RA1 3 RA2 4 RA3 5 DY1 6 DY2 7 RA4 8 DY3 9 RA5 VSS 10 11 GND 12 RY5 13 DA3 14 RY4 15 DA2 16 DA1 17 RY3 18 RY2 20 VCC 19 RY1
AZ75232
Figure 3. Functional Block Diagram of AZ75232
Ordering Information
AZ75232 Circuit Type Package M: SOIC-20 GS: SSOP-20 G: TSSOP-20
Temperature Range -40 to 85oC -40 to 85oC -40 to 85oC Part Number Tin Lead AZ75232M AZ75232MTR Lead Free AZ75232M-E1 AZ75232MTR-E1 AZ75232GS-E1 AZ75232GSTR-E1 AZ75232G-E1 AZ75232GTR-E1
E1: Lead Free Blank: Tin Lead TR: Tape and Reel Blank: Tube
Package
Marking ID Tin Lead AZ75232M AZ75232M Lead Free AZ75232M-E1 AZ75232M-E1 AZ75232GS-E1 AZ75232GS-E1 232GE 232GE
Packing Type Tube Tape & Reel Tube Tape & Reel Tube Tape & Reel
SOIC-20
SSOP-20
TSSOP-20
BCD Semiconductor's Pb-free products, as designated with "E1" suffix in the part number, are RoHS compliant.
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Absolute Maximum Ratings (Note 1)
Parameter Symbol VDD Supply Voltage VSS VCC Input Voltage Range VI Driver Receiver SOIC-20 Power Dissipation (TA=25oC) PD VO IOL TJ TSTG TLEAD SSOP-20 TSSOP-20 Driver Output Voltage Range Receiver Low-Level Output Current Operating Junction Temperature Storage Temperature Range Lead Temperature (Soldering, 10sec) -15 to 15 20 150 -65 to 150 260 Value 15 -15 7 -15 to 7 -30 to 30 1340 1210 1100 V mA
oC oC oC
AZ75232
Unit
V
V
mW
Note 1: Stresses greater than those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under "Recommended Operating Conditions" is not implied. Exposure to "Absolute Maximum Ratings" for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter Supply Voltage Symbol VDD VSS VCC High-Level Input Voltage (Driver Only) Low-Level Input Voltage (Driver Only) High-Level Output Current Low-Level Output Current Operating Temperature Range Driver Receiver Driver Receiver VIH VIL IOH IOL TA -40 Min 7.5 -15 4.5 1.9 0.8 -6 -0.5 6 16 85 Max 15 -7.5 5.5 V V mA mA
oC
Unit V
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Electrical Characteristics
(TA=25oC, unless otherwise specified.)
Parameter Symbol Conditions Min Typ Max Unit VOLTAGE SUPPLY SECTION (VCC=5V, VDD=9V, VSS=-9V, unless otherwise specified) VDD=9V, VSS=-9V All inputs at 1.9V, no load Supply Current from VDD IDD All inputs at 0.8V, no load VDD=12V, VSS=-12V VDD=15V, VSS=-15V VDD=9V, VSS=-9V VDD=12V, VSS=-12V VDD=15V, VSS=-15V VDD=9V, VSS=-9V All inputs at 1.9V, no load Supply Current from VSS ISS All inputs at 0.8V, no load Supply Current from VCC High-Level Output Voltage Low-Level Output Voltage High-Level Input Current Low-Level Input Current High-Level Short-Circuit Output Current Low-Level Short-Circuit Output Current Output Resistance ICC VOH VOL IIH IIL IOS(H) IOS(L) rO VDD=12V, VSS=-12V VDD=15V, VSS=-15V VDD=9V, VSS=-9V VDD=12V, VSS=-12V VDD=15V, VSS=-15V All inputs at 5V, no load, VCC=5V VIL=0.8V, RL=3kΩ VIH=1.9V, RL=3kΩ VI=5V VI=0V VIL=0.8V, VO=0V VIH=2V, VO=0V VCC=VDD=VSS=0, VO=-2Vto 2V -4.5 4.5 300 -12 12 6 7.5 -7.5 -6 10 -1.6 -19.5 19.5 DRIVER SECTION (VCC=5V, VDD=9V, VSS=-9V, unless otherwise specified) V V µA mA mA mA Ω 15 19 25 4.5 5.5 9 -15 -19 -25 -3.2 -3.2 -3.2 30 mA mA mA
AZ75232
DRIVER SECTION (VCC=5V, VDD=12V, VSS=-12V, unless otherwise specified) Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Transition Time Low to High Level Output Transition Time High to Low Level Output tPLH tPHL tTLH RL=3kΩ to 7kΩ, CL=15pF RL=3kΩ to 7kΩ, CL=15pF RL=3kΩ to 7kΩ RL=3kΩ to 7kΩ CL=15pF CL=2500pF (Note 2) CL=15pF CL=2500pF (Note 2) 315 75 60 1.7 40 1.5 500 175 100 2.5 75 2.5 ns ns ns µs ns µs
tTHL
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Electrical Characteristics (Continued)
(TA=25oC, unless otherwise specified.)
Parameter Symbol Conditions Min Typ Max Unit RECEIVER SECTION (VCC=5V, VDD=9V, VSS=-9V, unless otherwise specified) Positive-Going Input Threshold Voltage Negative-Going Input Threshold Voltage Input Hysteresis Voltage High-Level Output Voltage Low-Level Output Voltage High-Level Input Current 1.75 VIT+ VITVHYS VOH VOL IIH IOH=-0.5mA IOL=10mA, VI=3V VI=25V VI=3V VI=-25V VI=-3V VI=0.8V RL=5kΩ, CL=50pF RL=1.5kΩ, CL=15pF RL=5kΩ, CL=50pF RL=1.5kΩ, CL=15pF RL=5kΩ, CL=50pF RL=1.5kΩ, CL=15pF RL=5kΩ, CL=50pF RL=1.5kΩ, CL=15pF 3.6 0.43 -3.6 -0.43 -3.4 -12 mA -8.3 mA VIH=0.75V Input Open TA = -40 to 85 oC 1.55 0.75 0.5 2.6 2.6 0.2 0.45 8.3 mA V 4 5 0.97 1.9 2.3 2.3 1.25 V V V V V
AZ75232
Low-Level Input Current Short-Circuit Output Current
IIL IOS
RECEIVER SECTION (VCC=5V, VDD=12V, VSS=-12V, unless otherwise specified) Propagation Delay Time Low to High Level Output Propagation Delay Time High to Low Level Output Transition Time Low to High Level Output Transition Time High to Low Level Output tPLH 105 100 60 42 170 90 16 15 250 ns 160 150 ns 100 350 ns 175 60 ns 50
tPHL
tTLH
tTHL
Note 2: Measured between -3V and 3V points of the output waveform (EIA/TIA-232-F conditions); all unused inputs are tied either high or low.
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Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Typical Performance Characteristics
Driver Section
AZ75232
12 9 6
20 16
VDD=12V, VSS=-12V
Output Current (mA)
12 8 4 0 -4 -8 -12 -16
VDD=9V VSS=-9V TA=25 C
o
VOL(VI=1.9V)
VDD=9V, VSS=-9V VDD=6V, VSS=-6V
Output Voltage (V)
3 0 -3 -6 -9 -12 0.0 0.2
RL=3K TA=25 C
o
VOH(VI=0.8V)
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
-20 -16
-12
-8
-4
0
4
8
12
16
Input Voltage (V)
Output Voltage (V)
Figure 4. Voltage Transfer Characteristics
Figure 5. Output Current vs. Output Voltage
18 15
1000
Short-Circuit Output Current (mA)
12
Slew Rate (V/µs)
9 6 3 0 -3 -6 -9 -12 -40
IOS(L)(VI=1.9V) VDD=9V VSS=-9V VO=0
100
VDD = 9V VSS = -9V R L = 3K T A = 25 C
o
10
IOS(H)(VI=0.8V)
Slew Rate of Fall Edge Slew Rate of Rise Edge
40 60 80 1 10 100 1000 10000
-20
0
20
o
Temperature ( C)
Load Capacitance (pF)
Figure 6. Short-Circuit Output Current vs. Temperature
Figure 7. Slew Rate vs. Load Capacitance
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Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Typical Performance Characteristics (Continued)
Receiver Section
AZ75232
2.4 2.2
2.0 1.8
Input Threshold Voltage (V)
1.8 1.6 1.4 1.2 1.0 0.8 0.6 0.4 -40
Input Threshold Voltage (V)
2.0
VIT+
1.6 1.4 1.2 1.0 0.8 0.6 0.4 0.2 0.0
VIT+
VIT-
VIT-
-20
0
20
o
40
60
80
2
3
4
5
6
7
8
Temperature ( C)
Supply Voltage (V)
Figure 8. Input Threshold Voltage vs. Temperature
Figure 9. Input Threshold Voltage vs. Supply Voltage
6
VCC = 5V
5
TA = 2 5 C
o
Amplitude (V)
4
3
2
1
CL=12pF CL=500pF
100 1000 10000
0 10
Pulse Duration (ns)
Figure 10. Noise Rejection
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Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Typical Application
EIA/TIA-232-F DB9S CONNECTOR
11 RI DTR CTS 12 13 14 15 16 17 18 19 5V 20 10 GND RY5 DA3 RY4 DA2 DA1 RY3 RY2 RY1 VCC VSS RA5 DY3 RA4 9 8 7 6 5 4 3 2 1 12V
C2 C3
AZ75232
TTL/CMOS Level
-12V
Signal Ground RI DTR CTS TX RTS
C1
5 9
UART or Serial µC
TX RTS RX DSR DCD
AZ75232
DY2 DY1 RA3 RA2 RA1 VDD
RX DSR DCD 1
6
Figure 11. Typical Application of AZ75232
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Mechanical Dimensions SOIC-20 Unit: mm(inch) AZ75232
12.600(0.496) 13.000(0.512)
0.204(0.008) 0.360(0.014)
0.400(0.016)
10.000(0.394)
10.650(0.419)
7.400(0.291)
7.600(0.299)
0° 8°
1.270(0.050) TYP 2.180(0.086) 2.330(0.092) 0.350(0.014) 0.510(0.020) 0.100(0.004) 0.300(0.012) 2.280(0.090) 2.630(0.104)
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1.270(0.050)
Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Mechanical Dimensions (Continued) SSOP-20 Unit: mm(inch) AZ75232
0.650(0.026) 0.070(0.003) 0.230(0.009) 0.300(0.012) 1.690(0.067) MAX
10 ° 14° R0.150(0.006) 0.324(0.013) R0.150(0.006)
1.400(0.055) 1.600(0.063) 0.250(0.010)
1° 7°
0.630(0.025) 0.950(0.037) 1.250(0.049)
DETAIL A
7.700(0.303) 7.900(0.311)
1.200(0.047) 1.200(0.047) 0.020(0.001) DEP 0.080(0.003) 1.200(0.047)
5.200(0.205) 5.380(0.212) SEE DETAIL A
7.070(0.278) 7.330(0.289)
1° 7°
0.152(0.006)
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BCD Semiconductor Manufacturing Limited
Preliminary Datasheet MULTIPLE RS-232 DRIVERS AND RECEIVERS Mechanical Dimensions TSSOP-20 Unit: mm(inch) AZ75232
6.400(0.252) 6.600(0.260)
1.450(0.057) 0.000(0.000) Dp 1.550(0.061) 0.100(0.004) BTM E-MARK 4.300(0.169) 4.500(0.177)
6.200(0.244) 6.600(0.260) 0.750(0.030) Dp 0.000(0.000) 0.100(0.004) 0.850(0.033)
INDEX
#1 PIN
0.650(0.026)TYP
0.900(0.035) 1.050(0.041) 0.340(0.013) 0.540(0.021)
1.200(0.047) MAX 0.050(0.002) 0.150(0.006)
0.100(0.004) 0.190(0.007)
4- 10 ° 14 ° TOP & BOTTOM 0.200(0.008)MIN 0.200(0.008) 0.280(0.011) R0.090(0.004)MIN R0.090(0.004)MIN 0.250(0.010)TYP 0° 8° 0.450(0.018) 0.750(0.030)
1.000(0.039) REF
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IMPORTANT NOTICE BCD Semiconductor Manufacturing Limited reserves the right to make changes without further notice to any products or specifications herein. BCD Semiconductor Manufacturing Limited does not assume any responsibility for use of any its products for any particular purpose, nor does BCD Semiconductor Manufacturing Limited assume any liability arising out of the application or use of any its products or circuits. BCD Semiconductor Manufacturing Limited does not convey any license under its patent rights or other rights nor the rights of others.
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