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参数资料
| 型号： | SN74ACT16240DLR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | ACT SERIES, QUAD 4-BIT DRIVER, INVERTED OUTPUT, PDSO48 |
| 封装： | SSOP-48 |
| 文件页数： | 5/9页 |
| 文件大小： | 150K |
| 代理商： | SN74ACT16240DLR |
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,
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
TA = 25°C
SN54ACT16240
74ACT16240
UNIT
PARAMETER
(INPUT)
(OUTPUT)
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
tPLH
A
Y
2.3
5
7.7
2
9.5
2.3
8.5
ns
tPHL
A
Y
4.1
6.7
9.2
3
11.5
4.1
10.2
ns
tPZH
OE
Y
2.6
5.6
8.5
2
10.1
2.6
9.4
ns
tPZL
OE
Y
3.3
6.7
10.2
2.5
12.2
3.3
11.4
ns
tPHZ
OE
Y
5.9
8.3
11
4.5
12.7
5.9
12
ns
tPLZ
OE
Y
5.1
7.4
9.9
4
12
5.1
10.7
ns
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
C d
Power dissipation capacitance per driver
Outputs enabled
CL =50 pF
f=1MHz
38
pF
Cpd
Power dissipation capacitance per driver
Outputs disabled
CL = 50 pF,
f = 1 MHz
9
pF
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
[ VCC
3 V
0 V
50% VCC
VOH
VOL
0 V
50% VCC
20% VCC
50% VCC
80% VCC
[ 0 V
3 V
GND
Open
Input
Output
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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