ST75C185 Datasheet, PDF (4/13 Pages) STMicroelectronics – LOW POWER MULTIPLE RS-232 DRIVERS AND RECEIVERS

ST75C185
SUPPLY CURRENTS (V_DD = 12V, V_SS = -12V, V_CC = 5V, unless otherwise specified)
Symb ol
P a ramet er
T est Cond it ion s
Value
Min. Typ. Max.
IDD Supply Current from VDD
I_SS Supply Current from V_SS
I_CC Supply Current from V_CC
No load. All inputs at 2 or 0.8V
No load. All inputs at 2 or 0.8V
No load. All inputs at 0 or 5V
115
-115
950
500
-500
1500
Un it
µA
µA
µA
DRIVER ELECTRICAL CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE
(V_DD = 12V, V_SS = -12V, V_CC = 5V±10%, unless otherwise specified)
Symb ol
P a ramet er
T est Cond it ion s
Value
Un it
Min. Typ. Max.
V_OH High Level Output Voltage
V_IL = 0.8V
V_DD = 7V, V_SS = -7V
5 6.3
V
R_L = 3KΩ
(See Figure 1) _{VDD = 12V, VSS = -12V 10 10.8}
V
VOL Low Level Output Voltage
(Note 3)
VIH = 1.9 V
R_L = 3KΩ
(See Figure 1)
VDD = 7V, VSS = -7V
V_DD = 12V, V_SS = -12V
-6.3 -5
V
-10.8 -10
V
V_IH
V_IL
IIH
I_IL
I_OS(H)
High Level Input Voltage
Low Level Input Voltage
High Level Input Current
Low Level Input Current
High Level Short Circuit
Output Current (Note 4)
VI = 5 V (See Figure 2)
V_I = 0 V (See Figure 2)
V_I = 0.8 V V_O = 0V or V_SS
(See Figure 1)
2 1.4
V
1.4 0.8
V
1
µA
-1
µA
-6 -20 -60 mA
IOS(L) Low Level Short Circuit
Output Current (Note 4)
VI = 2 V VO = 0V or VSS
(See Figure 1)
6
35 60 mA
R_O Output Resistance
V_O = -2 to 2 V V_SS = V_CC = V_DD = 0V
300 450
Ω
NOTE 3: The algebraic convention, where the more positive (less negative) limitis designated as maximum, is used in this datasheet for logic levels only
(e.g. if -10V is a maximum, the typical value is a more negative voltage).
NOTE 4: Notmore than one outputs should be shorted atone time.
DRIVER SWITCHING CHARACTERISTICS
(V_DD = 12V, V_SS = -12V, V_CC = 5V T_A = 25 ^oC)
Symb ol
P a ramet er
T est Cond it ion s
Value
Min. Typ. Max.
t_PLH Propagation Delay Time, Low R_L = 3 to 7 K_Ω C_L = 1000 pF
to High Level Output
(See Figures 3)
1.9 4
tPHL Propagation Delay Time High R_L = 3 to 7 KΩ C_L = 1000 pF
to Low Level Output
(See Figures 3)
1.6 4
t_TLH Transition Time Low to High R_L = 3 to 7 K_Ω C_L = 1000 pF
Level Output
(See Figures 3)
0.53 2 3.2
t_THL Transition Time High to Low R_L = 3 to 7 KΩ C_L = 1000 pF
Level Output
(See Figure 3)
0.53 2 3.2
SR Output Slew Rate (Note 5)
R_L = 3 to 7 KΩ
C_L = 50 to 2500 pF
(See Figure 3)
4
11 30
NOTE 5: Measured between -3V and 3V points of output waveform (EIA-232-E conditions), all unused inputs tied either high or low.
Un it
µs
µs
µs
µs
V/µs
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