MC74VCX16245 Datasheet, PDF (6/8 Pages) Motorola, Inc – LOW-VOLTAGE 1.8/2.5/3.3V 16-BIT TRANSCEIVER

MC74VCX16245
DYNAMIC SWITCHING CHARACTERISTICS
Symbol
Characteristic
Condition
TA = +25°C
Typ
Unit
VOLP Dynamic LOW Peak Voltage
VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V
0.25
V
(Note 6.)
VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V
0.6
VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V
0.8
VOLV Dynamic LOW Valley Voltage
VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V
–0.25
V
(Note 6.)
VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V
–0.6
VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V
–0.8
VOHV Dynamic HIGH Valley Voltage
VCC = 1.8V, CL = 30pF, VIH = VCC, VIL = 0V
1.5
V
(Note 7.)
VCC = 2.5V, CL = 30pF, VIH = VCC, VIL = 0V
1.9
VCC = 3.3V, CL = 30pF, VIH = VCC, VIL = 0V
2.2
6. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is
measured in the LOW state.
7. Number of outputs defined as “n”. Measured with “n–1” outputs switching from HIGH–to–LOW or LOW–to–HIGH. The remaining output is
measured in the HIGH state.
CAPACITIVE CHARACTERISTICS
Symbol
Parameter
CIN
Input Capacitance
COUT
Output Capacitance
CPD
Power Dissipation Capacitance
8. VCC = 1.8, 2.5 or 3.3V; VI = 0V or VCC.
Condition
Note 8.
Note 8.
Note 8., 10MHz
Typical
Unit
6
pF
7
pF
20
pF
An, Bn
Bn, An
Vm
tPLH
Vm
Vm
tPHL
Vm
WAVEFORM 1 – PROPAGATION DELAYS
tR = tF = 2.0ns, 10% to 90%; f = 1MHz; tW = 500ns
OEn, T/Rn
An, Bn
An, Bn
Vm
Vm
tPZH
tPHZ
Vm
tPZL
tPLZ
Vm
WAVEFORM 2 – OUTPUT ENABLE AND DISABLE TIMES
tR = tF = 2.0ns, 10% to 90%; f = 1MHz; tW = 500ns
Figure 3. AC Waveforms
VIH
0V
VOH
VOL
VIH
0V
VOH
Vy
≈ 0V
≈ VCC
Vx
VOL
MOTOROLA
6
LCX DATA
BR1339 — REV 2