MC1488M ON Semiconductor, MC1488M Datasheet - Page 7

• Manufacturer Part Number: MC1488M
• Description: IC LINE DRIVER QD MONO 14SOEIAJ
• Manufacturer: ON Semiconductor
• Type: Driverr

Specifications of MC1488M

• Number Of Drivers/receivers: 4/0
• Protocol: RS232
• Voltage - Supply: 15V
• Mounting Type: Surface Mount
• Package / Case: 14-SOIC (5.3mm Width), 14-SOP, 14-SOIJ
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

schematic drawing of the drivers, the positive and negative
driving elements of the device are essentially independent
and do not require matching power supplies. In fact, the
positive supply can vary from a minimum 7.0 V (required for
driving the negative pulldown section) to the maximum
specified 15 V. The negative supply can vary from
approximately − 2.5 V to the minimum specified − 15 V. The
DTL
TTL
Input
2. Power Supply Range − as can be seen from the
Figure 16. DTL/TTL−to−MOS Translator
- 12 V
12 V
1/4 MC1488
1.0 k
- 12 V
10 k
MOS Output
(with V
SS
http://onsemi.com
= GND)
7
DTL
MMOS
Input
DTL
NAND
Gate
Input
DTL
Input
DTL
HTL
Input
MC1488 will drive the output to within 2.0 V of the positive
or negative supplies as long as the current output limits are not
exceeded. The combination of the current limiting and supply
voltage features allow a wide combination of possible outputs
within the same quad package. Thus if only a portion of the
four drivers are used for driving EIA−232D lines, the
remainder could be used for DTL to MOS or even DTL to
DTL translation. Figure 17 shows one such combination.
10
12
13
2
4
9
5
-12 V
Figure 17. Logic Translator Applications
1
MC1488
7
12 V
14
11
8
3
6
1.0 k
3.0 V
5.0 V
10 k
RTL Output
- 0.7 V to + 3.7 V
DTL Output
- 0.7 V to + 5.7 V
HTL Output
- 0.7 V to 10 V
MOS Output
-10 V to 0 V