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SN54ACT241 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 4 Page - Texas Instruments

๋ถ€ํ’ˆ๋ช… SN54ACT241
์ƒ์„ธ๋‚ด์šฉ  OCTAL BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
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SN54ACT241 ๋ฐ์ดํ„ฐ์‹œํŠธ(HTML) 4 Page - Texas Instruments

 
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SN54ACT241, SN74ACT241
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS516C โ€“ JUNE 1995 โ€“ REVISED OCTOBER 2002
4
POST OFFICE BOX 655303
โ€ข DALLAS, TEXAS 75265
switching
characteristics
over
recommended
operating
free-air
temperature
range,
VCC = 5 V ยฑ 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25ยฐC
SN54ACT241
SN74ACT241
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
1.5
6
8.5
1
9.5
1.5
9.5
ns
tPHL
A
Y
1.5
5.5
7.5
1
9
1.5
8.5
ns
tPZH
OE or OE
Y
1.5
7
8.5
1
10
1
9.5
ns
tPZL
OE or OE
Y
2
7
9.5
1
11.5
1.5
10.5
ns
tPHZ
OE or OE
Y
2
8
9.5
1
11
2
10.5
ns
tPLZ
OE or OE
Y
2.5
6.5
10
1
11.5
2
10.5
ns
operating characteristics, VCC = 5 V, TA = 25ยฐC
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance per buffer/driver
CL = 50 pF,
f = 1 MHz
45
pF
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
2
ร— VCC
500
โ„ฆ
500
โ„ฆ
tPLH
tPHL
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
ร— VCC
(see Note B)
Output
Waveform 2
S1 at Open
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
1.5 V
1.5 V
1.5 V
โ‰ˆVCC
3 V
0 V
50% VCC
50% VCC
VOH
VOL
0 V
50% VCC
VOL + 0.3 V
50% VCC
โ‰ˆ0 V
3 V
Open
Input
Output
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2
ร— VCC
Open
TEST
S1
VOH โ€“ 0.3 V
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: PRR
โ‰ค 1 MHz, ZO = 50 โ„ฆ, tr โ‰ค 2.5 ns, tf โ‰ค 2.5 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms


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