74AS04 ETC, 74AS04 Datasheet - Page 5

• Manufacturer Part Number: 74AS04
• Description: Search -----> SN74AS04 / DM74AS04
• Manufacturer: ETC

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NOTES: A. C L includes probe and jig capacitance.
From Output
(see Note B)
(see Note B)
Waveform 1
Waveform 2
Under Test
S1 Closed
(low-level
enabling)
S1 Open
Control
Output
(see Note A)
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
Timing
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
E. The outputs are measured one at a time with one transition per measurement.
Input
Input
Data
TOTEM-POLE OUTPUTS
LOAD CIRCUIT FOR
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
t PZH
t PZL
C L
t su
BI-STATE
SETUP AND HOLD TIMES
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
1.3 V
1.3 V
1.3 V
1.3 V
t PHZ
R L
SERIES 54ALS/74ALS AND 54AS/74AS DEVICES
1.3 V
PARAMETER MEASUREMENT INFORMATION
Figure 1. Load Circuits and Voltage Waveforms
Test
Point
1.3 V
1.3 V
t h
FOR OPEN-COLLECTOR OUTPUTS
t PLZ
POST OFFICE BOX 655303
From Output
(see Note A)
Under Test
3.5 V
0.3 V
3.5 V
0.3 V
0.3 V
0.3 V
3.5 V
0.3 V
[
V OL
V OH
[
LOAD CIRCUIT
3.5 V
0 V
C L
SN54ALS04B, SN54AS04, SN74ALS04B, SN74AS04
V CC
1 MHz, t r = t f = 2 ns, duty cycle = 50%.
DALLAS, TEXAS 75265
R L
Test
Point
High-Level
Low-Level
Out-of-Phase
(see Note C)
Pulse
Pulse
In-Phase
Output
Output
Input
From Output
Under Test
t PLH
t PHL
SDAS063B – APRIL 1982 – REVISED DECEMBER 1994
PROPAGATION DELAY TIMES
(see Note A)
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
PULSE DURATIONS
1.3 V
1.3 V
1.3 V
FOR 3-STATE OUTPUTS
C L
t w
LOAD CIRCUIT
1.3 V
1.3 V
S1
R1
HEX INVERTERS
7 V
1.3 V
1.3 V
1.3 V
R L = R1 = R2
1.3 V
1.3 V
R2
t PLH
t PHL
3.5 V
0.3 V
3.5 V
0.3 V
3.5 V
0.3 V
V OH
V OL
V OH
V OL
Test
Point
5