ST3243EB Datasheet, PDF (4/16 Pages) STMicroelectronics – Guaranteed 6 V/ms slew rate range

Pin configuration
Table 2. Pin description (continued)
Pin n°
Symbol
15
R5_OUT
16
R4_OUT
17
R3_OUT
18
R2_OUT
19
R1_OUT
20
R2_OUTB
21
INVALID
22
FORCEOFF
23
FORCEON
24
C₁-
25
GND
26
V_CC
27
V+
28
C₁+
ST3243EB, ST3243EC
Name and function
Fifth receiver output voltage
Fourth receiver output voltage
Third receiver output voltage
Second receiver output voltage
First receiver output voltage
Non-inverting complementary receiver output, always active
for wake-up
Output of the valid signal detector. Indicates if a valid RS-232
level is present on receiver inputs logic "1"
Drive low to shut down transmitters and on-board power
supply. This over-rides all automatic circuitry and FORCEON
Drive high to override automatic circuitry keeping transmitters
on (FORCEOFF must be high)
Negative terminal of voltage-charge pump capacitor
Ground
Supply voltage
5.5 V Generated by the charge pump
Positive terminal of voltage-charge pump capacitor
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Doc ID 8648 Rev 12