SN74ALVCH16373DL [TI]
16-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS; 16位透明D类锁存器具有三态输出
| 型号： | SN74ALVCH16373DL |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 16-BIT TRANSPARENT D-TYPE LATCH WITH 3-STATE OUTPUTS |
| 文件： | 总9页 (文件大小：126K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
DGG OR DL PACKAGE
(TOP VIEW)
Member of the Texas Instruments
Widebus Family
EPIC (Enhanced-Performance Implanted
CMOS) Submicron Process
1OE
1Q1
1Q2
GND
1Q3
1Q4
1LE
1D1
1D2
GND
1D3
1D4
1
2
3
4
5
6
7
8
9
48
47
46
45
44
43
42
41
40
ESD Protection Exceeds 2000 V Per
MIL-STD-833, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
Latch-Up Performance Exceeds 250 mA Per
JESD 17
V
V
CC
CC
1Q5
1Q6
1D5
1D6
Bus Hold on Data Inputs Eliminates the
Need for External Pullup/Pulldown
Resistors
GND 10
39 GND
1Q7
1Q8
1D7
1D8
11
12
38
37
Package Options Include Plastic 300-mil
Shrink Small-Outline (DL) and Thin Shrink
Small-Outline (DGG) Packages
2Q1 13
2Q2 14
GND 15
2Q3 16
2Q4 17
36 2D1
35 2D2
34 GND
33 2D3
32 2D4
description
This 16-bit transparent D-type latch is designed
for 1.65-V to 3.6-V V operation.
CC
V
18
31
V
CC
CC
2Q5 19
2Q6 20
GND 21
2Q7 22
2Q8 23
2OE 24
30 2D5
29 2D6
28 GND
27 2D7
26 2D8
25 2LE
The SN74ALVCH16373 is particularly suitable for
implementing buffer registers, I/O ports,
bidirectional bus drivers, and working registers.
This device can be used as two 8-bit latches or
one 16-bit latch. When the latch-enable (LE) input
is high, the Q outputs follow the data (D) inputs.
When LE is taken low, the Q outputs are latched
at the levels set up at the D inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive
the bus lines significantly. The high-impedance state and the increased drive provide the capability to drive bus
lines without need for interface or pullup components. OE does not affect internal operations of the latch. Old
data can be retained or new data can be entered while the outputs are in the high-impedance state.
To ensure the high-impedance state during power up or power down, OE should be tied to V through a pullup
CC
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level.
The SN74ALVCH16373 is characterized for operation from –40°C to 85°C.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
EPIC and Widebus are trademarks of Texas Instruments Incorporated.
Copyright 1999, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
FUNCTION TABLE
(each 8-bit section)
INPUTS
OUTPUT
Q
LE
H
H
L
D
H
L
OE
L
H
L
L
L
X
X
Q
0
H
X
Z
†
logic symbol
1
1OE
1EN
C3
48
1LE
24
2EN
C4
2OE
25
2LE
47
1D1
46
2
3
3D
1
1Q1
1Q2
1Q3
1Q4
1Q5
1Q6
1Q7
1Q8
2Q1
2Q2
2Q3
2Q4
2Q5
2Q6
2Q7
2Q8
1D2
44
5
1D3
43
6
1D4
41
8
1D5
40
9
1D6
38
11
12
13
14
16
17
19
20
22
23
1D7
37
1D8
36
2D1
35
4D
2
2D2
33
2D3
32
2D4
30
2D5
29
2D6
27
2D7
26
2D8
†
This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12.
logic diagram (positive logic)
1
24
25
2OE
2LE
1OE
48
1LE
C1
1D
C1
2
13
2Q1
1Q1
47
36
2D1
1D1
1D
To Seven Other Channels
To Seven Other Channels
2
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
†
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 4.6 V
CC
Input voltage range, V (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 4.6 V
I
Output voltage range, V (see Notes 1 and 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to V
+ 0.5 V
O
CC
Input clamp current, I (V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
IK
I
Output clamp current, I
(V < 0) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –50 mA
OK
O
Continuous output current, I . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through each V
Package thermal impedance, θ (see Note 3): DGG package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89°C/W
O
or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±100 mA
CC
JA
DL package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94°C/W
Storage temperature range, T
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –65°C to 150°C
stg
†
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.
NOTES: 1. The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. This value is limited to 4.6 V maximum.
3. The package thermal impedance is calculated in accordance with JESD 51.
recommended operating conditions (see Note 4)
MIN
1.65
MAX
UNIT
V
Supply voltage
3.6
V
CC
IH
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 1.65 V to 1.95 V
= 2.3 V to 2.7 V
= 2.7 V to 3.6 V
= 1.65 V to 1.95 V
= 2.3 V to 2.7 V
= 2.7 V to 3.6 V
0.65 × V
1.7
CC
V
High-level input voltage
V
V
2
0.35 × V
0.7
CC
V
IL
Low-level input voltage
0.8
V
V
Input voltage
0
0
V
V
V
V
I
CC
Output voltage
O
CC
–4
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
V
CC
= 1.65 V
= 2.3 V
= 2.7 V
= 3 V
–12
–12
–24
4
I
High-level output current
Low-level output current
mA
mA
OH
OL
= 1.65 V
= 2.3 V
= 2.7 V
= 3 V
12
I
12
24
∆t/∆v
Input transition rise or fall rate
Operating free-air temperature
10
ns/V
T
A
–40
85
°C
NOTE 4: All unused control inputs of the device must be held at V
or GND to ensure proper device operation. Refer to the TI application report,
CC
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
3
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
†
PARAMETER
TEST CONDITIONS
MIN TYP
–0.2
MAX
UNIT
V
CC
I
I
I
= –100 µA
= –4 mA
= –6 mA
1.65 V to 3.6 V
1.65 V
2.3 V
V
OH
OH
OH
CC
1.2
2
V
OH
2.3 V
1.7
2.2
2.4
2
V
I
= –12 mA
2.7 V
OH
3 V
I
I
I
I
= –24 mA
= 100 µA
= 4 mA
3 V
OH
OL
OL
OL
1.65 V to 3.6 V
1.65 V
2.3 V
0.2
0.45
0.4
= 6 mA
V
OL
V
2.3 V
0.7
I
= 12 mA
OL
2.7 V
0.4
I
= 24 mA
3 V
0.55
±5
OL
I
I
V = V
or GND
3.6 V
µA
I
CC
V = 0.58 V
1.65 V
1.65 V
2.3 V
25
–25
45
I
V = 1.07 V
I
V = 0.7 V
I
I
V = 1.7 V
2.3 V
–45
75
µA
I(hold)
I
V = 0.8 V
I
3 V
V = 2 V
I
3 V
–75
‡
V = 0 to 3.6 V
3.6 V
±500
±10
40
I
I
I
V
O
= V
or GND
CC
or GND,
3.6 V
µA
µA
µA
OZ
V = V
I
I = 0
O
3.6 V
CC
CC
∆I
CC
One input at V
– 0.6 V,
Other inputs at V
CC
or GND
3 V to 3.6 V
750
CC
Control inputs
Data inputs
Outputs
3
6
7
C
V = V or GND
CC
3.3 V
3.3 V
pF
pF
i
I
C
V
O
= V
or GND
o
CC
†
‡
All typical values are at V
= 3.3 V, T = 25°C.
CC
A
This is the bus-hold maximum dynamic current. It is the minimum overdrive current required to switch the input from one state to another.
timing requirements over recommended operating free-air temperature range (unless otherwise
noted) (see Figures 1 through 3)
V
= 2.5 V
V
= 3.3 V
CC
± 0.2 V
CC
± 0.3 V
V
= 1.8 V
MAX
V
= 2.7 V
MAX
CC
CC
UNIT
MIN
MIN
3.3
1
MAX
MIN
3.3
1
MIN
3.3
1.1
1.4
MAX
§
t
w
t
su
t
h
Pulse duration, LE high or low
Setup time, data before LE↓
Hold time, data after LE↓
ns
ns
ns
§
§
1.5
1.7
§
This information was not available at the time of publication.
4
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
switching characteristics over recommended operating free-air temperature range (unless
otherwise noted) (see Figures 1 through 3)
V
= 2.5 V
V
= 3.3 V
CC
± 0.2 V
CC
± 0.3 V
V
CC
= 1.8 V
V
= 2.7 V
FROM
(INPUT)
TO
(OUTPUT)
CC
PARAMETER
UNIT
TYP
MIN
1
MAX
4.5
4.9
6
MIN
MAX
4.3
MIN
1.1
1
MAX
3.6
†
†
†
†
D
t
pd
Q
ns
LE
OE
OE
1
4.6
3.9
t
t
Q
Q
1
5.7
1
4.7
ns
ns
en
1.2
5.1
4.5
1.4
4.1
dis
†
This information was not available at the time of publication.
operating characteristics, T = 25°C
A
V
= 1.8 V
CC
TYP
V
= 2.5 V
CC
TYP
V = 3.3 V
CC
PARAMETER
TEST CONDITIONS
UNIT
TYP
†
†
Outputs enabled
Outputs disabled
19
4
22
5
Power dissipation
capacitance
C
C
= 50 pF,
L
f = 10 MHz
pF
pd
†
This information was not available at the time of publication.
5
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
PARAMETER MEASUREMENT INFORMATION
= 1.8 V
V
CC
2 × V
CC
S1
Open
1 kΩ
From Output
TEST
S1
GND
Under Test
t
Open
pd
/t
C
= 30 pF
t
2 × V
CC
GND
L
PLZ PZL
1 kΩ
(see Note A)
t
/t
PHZ PZH
LOAD CIRCUIT
t
w
V
CC
V
CC
V
CC
/2
V
CC
/2
Input
Timing
Input
V
/2
CC
0 V
0 V
VOLTAGE WAVEFORMS
PULSE DURATION
t
su
t
h
V
CC
Output
Control
(low-level
enabling)
Data
Input
V
CC
V
CC
/2
V
/2
CC
V
CC
/2
V
CC
/2
0 V
0 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
t
t
PZL
PLZ
Output
Waveform 1
V
CC
V
CC
V
/2
CC
Input
V
CC
/2
V
CC
/2
S1 at 2 × V
(see Note B)
V
V
+ 0.15 V
V
CC
OL
0 V
OL
t
t
PZH
PHZ
t
t
PLH
PHL
Output
Waveform 2
S1 at GND
V
OH
V
V
OH
– 0.15 V
OH
V
/2
CC
Output
V
CC
/2
V
CC
/2
0 V
OL
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A.
C includes probe and jig capacitance.
L
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 ≤ 10 MHz, Z = 50 Ω, t ≤ 2 ns, t ≤ 2 ns.
O
r
f
D. The outputs are measured one at a time with one transition per measurement.
E.
F.
G.
t
t
t
and t
and t
and t
PHL
are the same as t
.
dis
PLZ
PZL
PLH
PHZ
PZH
are the same as t
.
en
are the same as t .
pd
Figure 1. Load Circuit and Voltage Waveforms
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
PARAMETER MEASUREMENT INFORMATION
= 2.5 V ± 0.2 V
V
CC
2 × V
CC
Open
S1
500 Ω
From Output
Under Test
TEST
S1
GND
t
Open
pd
/t
C
= 30 pF
t
2 × V
CC
GND
L
PLZ PZL
500 Ω
(see Note A)
t
/t
PHZ PZH
LOAD CIRCUIT
t
w
V
CC
V
CC
V
CC
/2
V
CC
/2
Input
Timing
Input
V
/2
CC
0 V
0 V
VOLTAGE WAVEFORMS
PULSE DURATION
t
su
t
h
V
CC
Output
Control
(low-level
enabling)
Data
Input
V
CC
V
CC
/2
V
/2
CC
V
CC
/2
V
CC
/2
0 V
0 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
t
t
PZL
PLZ
Output
Waveform 1
V
CC
V
CC
V
/2
CC
Input
V
CC
/2
V
CC
/2
S1 at 2 × V
(see Note B)
V
V
+ 0.15 V
V
CC
OL
0 V
OL
t
t
PZH
PHZ
t
t
PLH
PHL
Output
Waveform 2
S1 at GND
V
OH
V
V
OH
– 0.15 V
OH
V
/2
CC
Output
V
CC
/2
V
CC
/2
0 V
OL
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A.
C includes probe and jig capacitance.
L
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 ≤ 10 MHz, Z = 50 Ω, t ≤ 2 ns, t ≤ 2 ns.
O
r
f
D. The outputs are measured one at a time with one transition per measurement.
E.
F.
G.
t
t
t
and t
and t
and t
PHL
are the same as t
.
dis
PLZ
PZL
PLH
PHZ
PZH
are the same as t
.
en
are the same as t .
pd
Figure 2. Load Circuit and Voltage Waveforms
7
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
SN74ALVCH16373
16-BIT TRANSPARENT D-TYPE LATCH
WITH 3-STATE OUTPUTS
SCES020C – JULY 1995 – REVISED FEBRUARY 1999
PARAMETER MEASUREMENT INFORMATION
V
= 2.7 V AND 3.3 V ± 0.3 V
CC
6 V
S1
Open
TEST
S1
500 Ω
From Output
Under Test
t
pd
Open
6 V
GND
t
/t
PLZ PZL
C
= 50 pF
L
t
/t
GND
500 Ω
PHZ PZH
(see Note A)
t
w
LOAD CIRCUIT
2.7 V
0 V
1.5 V
1.5 V
Input
2.7 V
Timing
Input
1.5 V
0 V
VOLTAGE WAVEFORMS
PULSE DURATION
t
su
t
h
2.7 V
Data
Input
Output
Control
(low-level
enabling)
1.5 V
1.5 V
2.7 V
0 V
0 V
1.5 V
1.5 V
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
t
t
PLZ
PZL
Output
Waveform 1
S1 at 6 V
3 V
2.7 V
1.5 V
Input
1.5 V
1.5 V
V
+ 0.3 V
OL
V
(see Note B)
OL
OH
0 V
t
t
PZH
PHZ
t
t
PHL
PLH
Output
Waveform 2
S1 at GND
V
V
OH
V
OH
– 0.3 V
1.5 V
Output
1.5 V
1.5 V
0 V
(see Note B)
V
OL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
NOTES: A.
C
L
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 ≤ 10 MHz, Z = 50 Ω, t ≤ 2.5 ns, t ≤ 2.5 ns.
O
r
f
D. The outputs are measured one at a time with one transition per measurement.
E.
F.
G.
t
t
t
and t
and t
and t
PHL
are the same as t
.
dis
PLZ
PZL
PLH
PHZ
PZH
are the same as t
.
en
are the same as t .
pd
Figure 3. Load Circuit and Voltage Waveforms
8
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
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