MC74LCX16244 Motorola, MC74LCX16244 Datasheet - Page 5

• Manufacturer Part Number: MC74LCX16244
• Description: LOW-VOLTAGE CMOS 16-BIT BUFFER
• Manufacturer: Motorola

LCX DATA
BR1339 — REV 2
GENERATOR
PULSE
OEn
On
On
On
Dn
t PLH , t PHL
t PZL , t PLZ
Open Collector/Drain t PLH and t PHL
t PZH , t PHZ
C L = 50pF or equivalent (Includes jig and probe capacitance)
R L = R 1 = 500 or equivalent
R T = Z OUT of pulse generator (typically 50 )
WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES
t PZH
t PZL
t PLH
1.5V
t R = t F = 2.5ns, 10% to 90%; f = 1MHz; t W = 500ns
t R = t F = 2.5ns, 10% to 90%; f = 1MHz; t W = 500ns
WAVEFORM 1 – PROPAGATION DELAYS
Figure 1. AC Waveforms
R T
Figure 2. Test Circuit
TEST
1.5V
1.5V
V CC
DUT
1.5V
5
t PHZ
t PLZ
1.5V
1.5V
C L
1.5V
t PHL
SWITCH
Open
GND
6V
6V
R L
R 1
V OL + 0.3V
GND
2.7V
0V
V OH
V OL
2.7V
0V
V CC
V OH – 0.3V
3.0V
0V
6V
OPEN
GND
MC74LCX16244
MOTOROLA