SN55121, SN75121
DUAL LINE DRIVERS
SLLS074C – SEPTEMBER 1973 – REVISED MA Y 1998
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature range (unless otherwise noted)
PARAMETER TEST CONDITIONS MIN MAX UNIT
V
IK
Input clamp voltage VCC = 5 V, II = –12 mA –1.5 V
V
(BR)
Breakdown voltage VCC = 5 V, II = 10 mA 5.5 V
V
OH
High-level output voltage VIH = 2 V, IOH = –75 mA, See Note 2 2.4 V
I
OH
High-level output current
VCC = 5 V,
TA = 25°C,
VIH = 4.5 V,
See Note 2
VOH = 2 V,
–100 –250 mA
I
OL
Low-level output current VIL = 0.8 V, VOL = 0.4 V, See Note 2 –800 µA
I
O(off)
Off-state output current VCC = 3 V, VO = 3 V 500 µA
I
IH
High-level output current VI = 4.5 V 40 µA
I
IL
Low-level output current VI = 0.4 V –0.1 –1.6 mA
I
OS
Short-circuit output current
†
VCC = 5 V, TA = 25°C –30 mA
I
CCH
Supply current, outputs high VCC = 5.25 V , All inputs at 2 V , Outputs open 28 mA
I
CCL
Supply current, outputs low VCC = 5.25 V , All inputs at 0.8 V , Outputs open 60 mA
†
Not more than one output should be shorted at a time.
NOTE 2: The output voltage and current limits are valid for any appropriate combination of high and low inputs specified by the function table
for the desired output.
switching characteristics, VCC = 5 V, TA = 25°C
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t
PLH
Propagation delay time, low-to-high level output
PARAMETER MEASUREMENT INFORMATION
≤ 5 ns
0 V
V
OH
V
OL
3 V
≤ 5 ns
Input
10%
1.5 V
90%
t
PLH
Output
t
PHL
VOLTAGE WA VEFORMS
1.5 V 1.5 V
10%
1.5 V
90%
TEST CIRCUIT
Output
3 V V
CC
R
L
C
L
(see Note B)
Pulse
Generator
(see Note A)
NOTES: A. The pulse generator has the following characteristics: ZO ≈ 50 Ω, tw = 200 ns, duty cycle ≤ 50%, PRR ≤ 500 kHz.
B. CL includes probe and jig capacitance.
Figure 1. Test Circuit and Voltage Waveforms