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| MB2245 Datasheet, PDF (6/12 Pages) NXP Semiconductors – 16-bit transceivers with direction pins 3-State | |||
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Philips Semiconductors
16-bit transceiver with direction pins (3-State)
Product specification
MB2245
AC WAVEFORMS
VM = 1.5V, VIN = GND to 3.0V
INPUT
OUTPUT
VM
tPHL
VM
VM
tPLH
VM
SB00044
Waveform 1. Waveforms Showing the Input to Output
Propagation Delays
TEST CIRCUIT AND WAVEFORMS
nOE
INPUT
VM
VM
tPZL
tPLZ
3.5V
OUTPUT
OUTPUT
VM
tPZH
VM
tPHZ
VOL + 0.3V
VOL
VOH
VOH â 0.3V
0V
SB00045
Waveform 2. Waveforms Showing the 3-State Output Enable
and Disable Times
VCC
VIN
VOUT
RL
PULSE
GENERATOR
D.U.T.
RT
CL
RL
Test Circuit for 3-State Outputs
SWITCH POSITION
TEST
SWITCH
tPLZ
tPZL
All other
closed
closed
open
7.0V
90%
NEGATIVE
PULSE
POSITIVE
PULSE
10%
tW
VM
10%
VM
10%
tTHL (tF)
tTLH (tR)
90%
VM
90%
VM
tW
VM = 1.5V
Input Pulse Definition
90%
AMP (V)
0V
tTLH (tR)
tTHL (tF)
AMP (V)
10%
0V
DEFINITIONS
RL = Load resistor; see AC CHARACTERISTICS for value.
CL =
Load capacitance includes jig and probe capacitance; see AC
CHARACTERISTICS for value.
RT = Termination resistance should be equal to ZOUT of pulse generators.
FAMILY
MB
Amplitude
3.0V
INPUT PULSE REQUIREMENTS
Rep. Rate
tW
tR
tF
1MHz
500ns 2.5ns 2.5ns
SB00010
1998 Jan 16
6
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