74AC16623DL [TI]
16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS;
| 型号： | 74AC16623DL |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS 光电二极管 输出元件 逻辑集成电路 |
| 文件： | 总7页 (文件大小：108K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ꢀ ꢁꢂ ꢃ ꢄꢅ ꢅꢆꢇ
ꢄ ꢅ ꢈꢉꢊ ꢋꢌ ꢉꢍꢎꢌ ꢋ ꢏꢂꢐꢎ ꢃꢑ ꢊ ꢒꢑ ꢏ
ꢓ ꢊꢋ ꢔꢌ ꢇ ꢈꢎꢋꢂꢋ ꢑꢌ ꢕ ꢍꢋ ꢖꢍ ꢋꢎ
ꢗ
SCAS172 − D3680, JANUARY 1991 − REVISED APRIL 1993
DL PACKAGE
(TOP VIEW)
• Member of the Texas Instruments
Widebus Family
• Packaged in Plastic 300-mil Shrink
Small-Outline Package Using 25-mil
Center-to-Center Pin Spacings
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OEAB
1B1
1B2
GND
1B3
1OEBA
1A1
1A2
GND
1A3
1A4
2
3
• Flow-Through Architecture Optimizes
4
PCB Layout
5
• Distributed V
and GND Pin Configuration
Minimizes High-Speed Switching Noise
6
1B4
CC
7
V
V
CC
CC
8
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
• EPIC (Enhanced-Performance Implanted
9
CMOS) 1-µm Process
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
• 500-mA Typical Latch-Up Immunity
at 125°C
description
The 74AC16623 is a 16-bit transceiver designed
for asynchronous communication between data
buses. The control function implementation allows
for maximum flexibility in timing.
V
V
CC
CC
2B5
2B6
GND
2B7
2B8
2A5
2A6
GND
2A7
2A8
This device can be used as two 8-bit transceivers
or one 16-bit transceiver. It allows data
transmission from the A bus to the B bus or from
the B bus to the A bus, depending upon the logic
level at the output-enable (OEBA and OEAB)
inputs. The output-enable inputs can be used to
disable the device so that the buses are effectively
isolated.
2OEAB
2OEBA
The dual-enable configuration gives the bus transceiver the capability to store data by simultaneous enabling
of OEBA and OEAB. Each output reinforces its input in this transceiver configuration. Thus, when both control
inputs are enabled and all other data sources to the two sets of bus lines are at high impedance, the bus lines
will remain at their last states.
The 74AC16623 is packaged in TI’s shrink small-outline package (DL), which provides twice the I/O pin count
and functionality of standard small-outline packages in the same printed-circuit-board area.
The 74AC16623 is characterized for operation from −40°C to 85°C.
FUNCTION TABLE
(each 8-bit section)
INPUTS
OPERATION
OEBA
OEAB
L
H
H
L
H
L
B data to A bus
A data to B bus
Isolation
B data to A bus,
A data to B bus
L
H
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
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Copyright 1993, Texas Instruments Incorporated
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ꢠ ꢤ ꢡ ꢠꢙ ꢚꢮ ꢜꢛ ꢟ ꢧꢧ ꢥꢟ ꢝ ꢟ ꢞ ꢤ ꢠ ꢤ ꢝ ꢡ ꢩ
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3−1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
ꢀ ꢁꢂ ꢃ ꢄꢅ ꢅ ꢆ ꢇ
ꢄ ꢅꢈ ꢉꢊ ꢋ ꢌ ꢉ ꢍꢎ ꢌ ꢋꢏ ꢂꢐꢎ ꢃꢑ ꢊ ꢒꢑ ꢏ
ꢓꢊ ꢋ ꢔ ꢌꢇ ꢈꢎ ꢋꢂꢋꢑ ꢌ ꢕ ꢍꢋ ꢖꢍꢋ ꢎ
ꢗ
SCAS172 − D3680, JANUARY 1991 − REVISED APRIL 1993
†
logic symbol
logic diagram (positive logic)
48
48
1OEBA
EN1
EN2
EN3
EN4
1OEBA
1OEAB
1
1
1OEAB
25
24
2OEBA
2OEAB
47
1A1
2
47
2
1A1
1B1
1B1
1
1
1
2
46
44
43
41
40
38
37
36
3
5
1A2
1A3
1A4
1A5
1A6
1A7
1A8
2A1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
2B1
To Seven Other Channels
6
8
25
24
9
2OEBA
2OEAB
2A1
11
12
13
36
3
1
1
4
13
35
33
32
30
29
27
26
14
16
17
19
20
22
23
2B1
2A2
2A3
2A4
2A5
2A6
2A7
2A8
2B2
2B3
2B4
2B5
2B6
2B7
2B8
To Seven Other Channels
†
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
‡
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to 7 V
CC
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
+ 0.5 V
+ 0.5 V
I
CC
CC
Output voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −0.5 V to V
O
Input clamp current, I (V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
IK
I
I
CC
Output clamp current, I
(V < 0 or V > V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
OK
O O CC
Continuous output current, I (V = 0 to V ) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 mA
Continuous current through V
O
O
CC
CC
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400 mA
Maximum power package dissipation at T = 55°C (in still air) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.85 W
A
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . −65°C to 150°C
‡
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output clamp-current ratings are observed.
3−2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
ꢀꢁ ꢂꢃ ꢄ ꢅꢅ ꢆꢇ
ꢄ ꢅ ꢈꢉꢊ ꢋꢌ ꢉꢍꢎꢌ ꢋ ꢏꢂꢐꢎ ꢃꢑ ꢊ ꢒꢑ ꢏ
ꢓ ꢊꢋ ꢔꢌ ꢇ ꢈꢎꢋꢂꢋ ꢑꢌꢕ ꢍ ꢋꢖ ꢍꢋ ꢎ
ꢗ
SCAS172 − D3680, JANUARY 1991 − REVISED APRIL 1993
recommended operating conditions (see Note 2)
MIN NOM
MAX
UNIT
V
Supply voltage
3
2.1
5
5.5
V
CC
IH
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 3 V
= 4.5 V
= 5.5 V
= 3 V
3.15
3.85
V
High-level input voltage
V
V
0.9
1.35
1.65
= 4.5 V
= 5.5 V
V
IL
Low-level input voltage
V
V
Input voltage
0
0
V
V
V
I
CC
Output voltage
V
CC
−4
O
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 3 V
= 4.5 V
= 5.5 V
= 3 V
−24
−24
12
I
High-level output current
Low-level output current
mA
mA
OH
= 4.5 V
= 5.5 V
24
I
OL
24
∆t/∆v
Input transition rise or fall rate
Operating free-air temperature
0
10
ns/V
T
A
−40
85
°C
NOTE 2: Unused or floating pins (input or I/O) must be held high or low.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
TA = 25°C
PARAMETER
TEST CONDITIONS
V
MIN
MAX
UNIT
CC
MIN
2.9
TYP
MAX
3 V
4.5 V
5.5 V
3 V
2.9
4.4
4.4
I
I
= − 50 µA
OH
5.4
5.4
= − 4 mA
2.58
3.94
4.94
2.48
3.8
V
OH
V
OH
4.5 V
5.5 V
5.5 V
3 V
I
I
= − 24 mA
= −75 mA
OL
4.8
†
3.85
OH
0.1
0.1
0.1
0.1
0.1
0.44
0.44
0.44
1.65
1
4.5 V
5.5 V
3 V
I
I
= 50 µA
OL
0.1
= 12 mA
= 24 mA
0.36
0.36
0.36
V
OL
V
OL
4.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5.5 V
5 V
I
I
OL
†
= 75 mA
OL
I
I
I
Control inputs V = V
or GND
or GND
0.1
0.5
8
µA
µA
µA
pF
pF
I
I
CC
‡
A or B ports
V
= V
CC
5
O
OZ
CC
V = V
or GND,
or GND
I = 0
O
80
I
CC
C
C
Control inputs V = V
4.5
16
i
I
CC
A or B ports
V
= V
O CC
or GND
5 V
io
†
‡
Not more than one output should be tested at a time, and the duration of the test should not exceed 10 ms.
For I/O ports, the parameter I includes the input leakage current.
OZ
3−3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
ꢀ ꢁꢂ ꢃ ꢄꢅ ꢅ ꢆ ꢇ
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ꢓꢊ ꢋ ꢔ ꢌꢇ ꢈꢎ ꢋꢂꢋꢑ ꢌ ꢕ ꢍꢋ ꢖꢍꢋ ꢎ
ꢗ
SCAS172 − D3680, JANUARY 1991 − REVISED APRIL 1993
switching characteristics over recommended operating free-air temperature range,
V
= 3.3 V 0.3 V (unless otherwise noted) (see Figure 1)
CC
T
A
= 25°C
TYP
8.1
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
MIN
MAX
UNIT
MIN
2.7
3.1
2.7
3.5
4.8
4.1
2.8
3.8
4.7
4.3
MAX
10
t
t
t
t
t
t
t
t
t
t
2.7
3.1
2.7
3.5
4.8
4.1
2.8
3.8
4.7
4.3
11.2
12.5
11.5
15.6
9.9
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
A or B
OEBA
OEBA
OEAB
OEAB
B or A
ns
ns
ns
ns
ns
9.3
11.4
10.3
14.2
9.3
8.3
A
A
B
B
11.8
7.7
7.5
9.2
9.8
8.1
9.9
11.1
15.1
9.5
10.7
7.5
14.1
9.1
7.3
8.9
9.3
switching characteristics over recommended operating free-air temperature range,
= 5 V 0.5 V (unless otherwise noted) (see Figure 1)
V
CC
T
A
= 25°C
TYP
5.1
6
FROM
(INPUT)
TO
(OUTPUT)
PARAMETER
MIN
MAX
UNIT
ns
MIN
2.3
2.6
2.1
2.8
4.7
4
MAX
6.9
7.8
6.8
8.5
8.4
7.7
6.7
8.4
8.4
7.6
t
t
t
t
t
t
t
t
t
t
2.3
2.6
2.1
2.8
4.7
4
7.7
8.6
7.6
9.4
8.9
8.2
7.5
9.3
8.9
7.9
PLH
PHL
PZH
PZL
PHZ
PLZ
PZH
PZL
PHZ
PLZ
A or B
OEBA
OEBA
OEAB
OEAB
B or A
5.3
6.9
6.9
6.3
5.2
6.7
6.9
6.2
A
A
B
B
ns
ns
2.3
3
2.3
3
ns
4.5
4
4.5
4
ns
operating characteristics, V
= 5 V, T = 25°C
A
CC
PARAMETER
TEST CONDITIONS
= 50 pF, f = 1 MHz
L
TYP
UNIT
Outputs enabled
Outputs disabled
47
8
C
Power dissipation capacitance per transceiver
C
pF
pd
3−4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
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ꢗ
SCAS172 − D3680, JANUARY 1991 − REVISED APRIL 1993
PARAMETER MEASUREMENT INFORMATION
2 × V
CC
TEST
S1
S1
t
/t
Open
500 Ω
Open
GND
PLH PHL
From Output
Under Test
t
/t
2 × V
CC
GND
PLZ PZL
t
/t
PHZ PZH
C
= 50 pF
L
500 Ω
(see Note A)
LOAD CIRCUIT
Output
Control
(low-level
enabling)
V
CC
50%
50%
0 V
t
PZL
V
t
CC
PLZ
Input
(see Note B)
Output
Waveform 1
[ V
CC
50%
50%
50% V
CC
0 V
20% V
S1 at 2 × V
(see Note C)
CC
CC
V
OL
t
PLH
t
PHZ
t
PHL
t
PZH
Output
Waveform 2
S1 at GND
V
OH
V
OH
80% V
CC
50% V
CC
50% V
Output
CC
V
50% V
CC
[ 0 V
OL
(see Note C)
VOLTAGE WAVEFORMS
NOTES: A. C includes probe and jig capacitance.
VOLTAGE WAVEFORMS
L
B. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, Z = 50 Ω, t = 3 ns, t = 3 ns.
O
r
f
C. 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.
D. The outputs are measured one at a time with one input transition per measurement.
Figure 1. Load Circuit and Voltage Waveforms
3−5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001
3−6
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