參數(shù)資料
型號(hào): SN54ACT16240WD
廠商: Texas Instruments, Inc.
英文描述: 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
中文描述: 16位緩沖器/ 3司機(jī)態(tài)輸出
文件頁(yè)數(shù): 5/6頁(yè)
文件大?。?/td> 107K
代理商: SN54ACT16240WD
SN54ACT16240, 74ACT16240
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS137C – JULY 1989 – REVISED NOVEMBER 1996
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
switching characteristics over recommended operating free-air temperature range,
V
CC
= 5 V
±
0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
TA = 25
°
C
TYP
SN54ACT16240
MIN
2
74ACT16240
MIN
2.3
UNIT
(OUTPUT)
MIN
2.3
MAX
7.7
MAX
9.5
MAX
8.5
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
A
Y
5
ns
4.1
6.7
9.2
3
11.5
4.1
10.2
OE
Y
2.6
5.6
8.5
2
10.1
2.6
9.4
ns
3.3
6.7
10.2
2.5
12.2
3.3
11.4
OE
Y
5.9
8.3
11
4.5
12.7
5.9
12
ns
5.1
7.4
9.9
4
12
5.1
10.7
operating characteristics, V
CC
= 5 V, T
A
= 25
°
C
PARAMETER
TEST CONDITIONS
TYP
38
UNIT
Cd
Cpd
Power dissipation capacitance per driver
Outputs enabled
CL= 50 pF
CL = 50 pF,
f = 1 MHz
pF
Outputs disabled
9
PARAMETER MEASUREMENT INFORMATION
From Output
Under Test
CL = 50 pF
(see Note A)
LOAD CIRCUIT
S1
2
×
VCC
500
500
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2
×
VCC
GND
tPHL
tPLH
Output
Control
(low-level
enabling)
Output
Waveform 1
S1 at 2
×
VCC
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
1.5 V
1.5 V
1.5 V
1.5 V
VCC
3 V
0 V
50% VCC
50% VCC
VOH
VOL
0 V
50% VCC
20% VCC
50% VCC
80% VCC
0 V
3 V
GND
Open
Input
Output
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
TEST
S1
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
1 MHz, ZO = 50
, tr = 3 ns, tf = 3 ns.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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