SN74FB2033A Datasheet, PDF (11/14 Pages) Texas Instruments – 8-BIT TTL/BTL REGISTERED TRANSCEIVER

From Output
Under Test
CL = 50 pF
(see Note A)
SN74FB2033A
8-BIT TTL/BTL REGISTERED TRANSCEIVER
SCBS174M – NOVEMBER 1991 – REVISED SEPTEMBER 2001
PARAMETER MEASUREMENT INFORMATION
500 Ω ^S1
7V
Open
500 Ω
2.1 V
From Output
Under Test
CL = 30 pF
(see Note A)
9Ω
Test
Point
TEST
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
S1
Open
7V
Open
LOAD CIRCUIT FOR A OUTPUTS
LOAD CIRCUIT FOR B OUTPUTS
Timing Input
Data Input
3V
1.5 V
0V
tsu
th
3V
1.5 V
1.5 V
0V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Input
1.5 V
3V
1.5 V
0V
tPHL
tPLH
Output
1.55 V
VOH
1.55 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES (A TO B)
Input
1.55 V
1.55 V
2.1 V
1V
Input
tw
1.5 V
3V
1.5 V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
Output
Control
1.5 V
3V
1.5 V
0V
Output
Waveform 1
S1 at 7 V
(see Note B)
tPZL
tPZH
1.5 V
tPLZ
3.5 V
VOL + 0.3 V
VOL
tPHZ
Output
Waveform 2
S1 at Open
(see Note B)
1.5 V
VOH
VOH – 0.3 V
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES (A PORT)
tPHL
tPLH
Output
1.5 V
VOH
1.5 V
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES (B TO A)
VOHP
VOHV
VOLV
VOLTAGE WAVEFORMS
2.1 V
1V
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: TTL inputs: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns,
tf ≤ 2.5 ns; BTL inputs: PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
D. The outputs are measured one at a time with one transition per measurement.
Figure 2. Load Circuits and Voltage Waveforms
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