UM3304_15 Datasheet, PDF (11/15 Pages) Union Semiconductor, Inc. – 4-Bit Bidirectional Voltage-Level Translator with Auto Direction Sensing and ESD Protection

UM3304/UM3304Q/UM3304QT
Typical Operating Circuit
+1.8V
0.1μF
+1.8V
SYSTEM
CONTROLLER
DATA
VCCA VCCB
OE
UM3304
UM3304Q
UM3304QT
A1
B1
A2
B2
A3
B3
A4
B4
0.1μF
+3.3V
1μF
+3.3V
SYSTEM
DATA
Test Circuits
From Output
Under Test
Figure 3 Typical Operating Circuit
15pF
1MΩ
From Output
Under Test
50kΩ ^S1
2×VCCO
Open
15pF 50kΩ
LOAD CIRCUIT FOR MAX DATA RATE,
PULSE DURATION PROPAGATION
DELAY OUTPUT RISE AND FALL TIME
MEASUREMENT
LOAD CIRCUIT FOR
ENABLE/DISABLE
TIME MEASUREMENT
TEST
tPZL/tPLZ
tPHZ/tPZH
S1
2×VCCO
Open
Input
VCCI/2
tPLH
Output
VCCO/2
tr
VCCI/2
0.9×VCCO
0.1×VCCO
VCCI
0V
tPHL
VCCO/2
VOH
VOL
tf
Input
tw
VCCI/2
VCCI/2
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
PULSE DURATION
A. CL includes probe and jig capacitance.
B. All input pulses are supplied by generators having the following characteristics: PRR≤10MHz, ZO=50Ω,dv/dt≥1V/ns.
C. The outputs are measured one at a time, with one transition per measurement.
D. tPLH and tPHL are the same as tpd.
E. VCCI is the VCC associated with the input port.
F. VCCO is the VCC associated with the output port.
G. All parameters and waveforms are not applicable to all devices.
VCCI
0V
Figure 4 Load Circuits and Voltage Waveforms
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http://www.union-ic.com Rev.15 Aug.2015
11/15