SN74LVC2G17
DUAL SCHMITT TRIGGER BUFFER
SCES381E − JANUARY 2002 − REVISED SEPTEMBER 2003
PARAMETER MEASUREMENT INFORMATION
S1
VLOAD
Open
GND
RL
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
VLOAD
GND
From Output
Under Test
CL
(see Note A)
RL
LOAD CIRCUIT
INPUTS
VCC
1.8 V
±
0.15 V
2.5 V
±
0.2 V
3.3 V
±
0.3 V
5 V
±
0.5 V
VI
VCC
VCC
3V
VCC
tr/tf
≤2
ns
≤2
ns
≤2.5
ns
≤2.5
ns
VM
VCC/2
VCC/2
1.5 V
VCC/2
VLOAD
2
×
VCC
2
×
VCC
6V
2
×
VCC
CL
30 pF
30 pF
50 pF
50 pF
RL
1 kΩ
500
Ω
500
Ω
500
Ω
V
∆
0.15 V
0.15 V
0.3 V
0.3 V
VI
Timing Input
tw
VI
Input
VM
VM
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VI
Input
tPLH
Output
tPHL
VM
VM
VM
VM
0V
tPHL
VOH
VM
VOL
tPLH
VOH
Output
VM
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
Output
Waveform 2
S1 at GND
(see Note B)
Output
Control
tPZL
VM
tPZH
VM
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VI
VM
VM
0V
tPLZ
VLOAD/2
VOL + V
∆
tPHZ
VOH − V
∆
VOH
≈0
V
VOL
Data Input
tsu
VM
th
VI
VM
0V
VM
0V
Output
Waveform 1
S1 at VLOAD
(see Note B)
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR
≤
10 MHz, ZO = 50
Ω.
D. The outputs are measured one at a time with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
6
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
TI [ TEXAS INSTRUMENTS ]
