SN54ACT563, SN74ACT563
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS550B – NOVEMBER 1995 – REVISED OCTOBER 2002
D
SN54ACT563 . . . J OR W PACKAGE
SN74ACT563 . . . DB, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
4.5-V to 5.5-V VCC Operation
Inputs Accept Voltages to 5.5 V
Max tpd of 8.5 ns at 5 V
Inputs Are TTL-Voltage Compatible
3-State Inverted Outputs Drive Bus Lines
Directly
Flow-Through Architecture to Optimize
PCB Layout
OE
1D
2D
3D
4D
5D
6D
7D
8D
GND
description/ordering information
The ’ACT563 devices are octal D-type
transparent latches with 3-state outputs. When
the latch-enable (LE) input is high, the Q outputs
are set to the complements of the data (D) inputs.
When LE is taken low, the Q outputs are latched
at the inverse logic levels set up at the D inputs.
1
20
2
19
3
18
4
17
5
16
6
15
7
14
8
13
9
12
10
11
VCC
1Q
2Q
3Q
4Q
5Q
6Q
7Q
8Q
LE
2D
1D
OE
VCC
SN54ACT563 . . . FK PACKAGE
(TOP VIEW)
A buffered output-enable (OE) input places 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 increased high logic
level provide the capability to drive bus lines
without interface or pullup components.
4
3 2 1 20 19
18
5
17
6
16
7
15
8
14
9 10 11 12 13
2Q
3Q
4Q
5Q
6Q
8D
GND
CLK
8Q
7Q
3D
4D
5D
6D
7D
1Q
D
D
D
D
D
OE does not affect internal operations of the
latches. 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 VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
ORDERING INFORMATION
PDIP – N
–55°C to 125°C
TOP-SIDE
MARKING
Tube
SN74ACT563N
Tube
SN74ACT563DW
Tape and reel
SN74ACT563DWR
SOP – NS
Tape and reel
SN74ACT563NSR
ACT563
SSOP – DB
Tape and reel
SN74ACT563DBR
AD563
TSSOP – PW
Tape and reel
SN74ACT563PWR
AD563
CDIP – J
Tube
SNJ54ACT5634J
SNJ54ACT563J
CFP – W
Tube
SNJ54ACT563W
SNJ54ACT563W
LCCC – FK
Tube
SNJ54ACT563FK
SOIC – DW
–40°C
40°C to 85°C
ORDERABLE
PART NUMBER
PACKAGE†
TA
SN74ACT563N
ACT563
SNJ54ACT563FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
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.
Copyright 2002, Texas Instruments Incorporated
UNLESS OTHERWISE NOTED this document contains PRODUCTION
DATA information 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.
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1
SN54ACT563, SN74ACT563
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS550B – NOVEMBER 1995 – REVISED OCTOBER 2002
FUNCTION TABLE
(each latch)
INPUTS
OUTPUT
Q
OE
LE
D
L
H
H
L
L
H
L
H
L
L
X
Q0
H
X
X
Z
logic diagram (positive logic)
OE
LE
1
11
C1
1D
2
19
1Q
1D
To Seven Other Channels
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)†
Supply voltage range, VCC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to 7 V
Input voltage range, VI (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V
Output voltage range, VO (see Note 1) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.5 V to VCC + 0.5 V
Input clamp current, IIK (VI < 0 or VI > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Output clamp current, IOK (VO < 0 or VO > VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±20 mA
Continuous output current, IO (VO = 0 to VCC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±50 mA
Continuous current through VCC or GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±200 mA
Package thermal impedance, θJA (see Note 2): DB package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70°C/W
DW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 58°C/W
N package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69°C/W
NS package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60°C/W
PW package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C/W
Storage temperature range, Tstg . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –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.
NOTES: 1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
2
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SN54ACT563, SN74ACT563
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS550B – NOVEMBER 1995 – REVISED OCTOBER 2002
recommended operating conditions (see Note 3)
SN54ACT563
MAX
MIN
MAX
4.5
5.5
4.5
5.5
VCC
VIH
Supply voltage
VIL
VI
Low-level input voltage
Input voltage
0
VO
IOH
Output voltage
0
High-level output current
IOL
∆t/∆v
Low-level output current
High-level input voltage
SN74ACT563
MIN
2
2
V
V
0.8
Input transition rise or fall rate
UNIT
0.8
V
VCC
VCC
V
–24
–24
mA
24
24
mA
8
8
ns/V
VCC
VCC
0
0
V
TA
Operating free-air temperature
–55
125
–40
85
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
4.5 V
IOH = –50
50 µA
VOH
IOH = –24
24 mA
IOH = –50 mA†
IOH = –75 mA†
MIN
TA = 25°C
TYP
MAX
SN54ACT563
MIN
MAX
MIN
4.49
4.4
5.5 V
5.4
5.49
5.4
5.4
4.5 V
3.86
3.7
3.76
5.5 V
4.86
4.7
4.76
MAX
UNIT
4.4
V
3.85
5.5 V
IOL = 24 mA
SN74ACT563
4.4
5.5 V
IOL = 50 µA
VOL
VCC
3.85
4.5 V
0.001
0.1
0.1
5.5 V
0.001
0.1
0.1
0.1
0.1
4.5 V
0.36
0.5
0.44
5.5 V
0.36
0.5
0.44
V
IOL = 50 mA†
IOL = 75 mA†
5.5 V
IOZ
II
VO = VCC or GND
VI = VCC or GND
5.5 V
±0.25
±5
±2.5
µA
5.5 V
±0.1
±1
±1
µA
ICC
VI = VCC or GND,
IO = 0
One input at 3.4 V,
Other inputs at GND or VCC
5.5 V
4
80
40
µA
1.6
1.5
mA
∆ICC‡
1.65
5.5 V
5.5 V
1.65
0.6
Ci
VI = VCC or GND
5V
4.5
† Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms.
‡ This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC.
pF
timing requirements over recommended operating free-air temperature range, VCC = 5 V ± 0.5 V
(unless otherwise noted) (see Figure 1)
TA = 25°C
MIN
MAX
SN54ACT563
MIN
MAX
SN74ACT563
MIN
MAX
UNIT
tw
tsu
Pulse duration, LE high
3
5
3
ns
Setup time, data before LE↓
4
4.5
4.5
ns
th
Hold time, data after LE↓
0
1.5
0
ns
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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SN54ACT563, SN74ACT563
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS550B – NOVEMBER 1995 – REVISED OCTOBER 2002
switching characteristics over recommended operating
VCC = 5 V ± 0.5 V (unless otherwise noted) (see Figure 1)
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
tPLH
tPHL
D
Q
tPLH
tPHL
LE
Q
tPZH
tPZL
OE
Q
tPHZ
tPLZ
OE
Q
MIN
free-air
TA = 25°C
TYP
MAX
temperature
SN54ACT563
SN74ACT563
MIN
MAX
MIN
MAX
3
7
11.5
1
14.5
2.5
12.5
3
6
10
1
12
2.5
11
3
6.5
10.5
1
12.5
2.5
11.5
2.5
5.5
9.5
1
11.5
2
10.5
2.5
5.5
9
1
11.5
2
10
2
5.5
8.5
1
11
2
9.5
3.5
6.5
10.5
1
12
2.5
11.5
2
4.5
8
1
9.5
1
8.5
range,
UNIT
ns
ns
ns
ns
operating characteristics, VCC = 5 V, TA = 25°C
PARAMETER
Cpd
TEST CONDITIONS
Power dissipation capacitance
CL = 50 pF,
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.
4
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f = 1 MHz
TYP
50
UNIT
pF
SN54ACT563, SN74ACT563
OCTAL D-TYPE TRANSPARENT LATCHES
WITH 3-STATE OUTPUTS
SCAS550B – NOVEMBER 1995 – REVISED OCTOBER 2002
PARAMETER MEASUREMENT INFORMATION
2 × VCC
S1
500 Ω
From Output
Under Test
Open
500 Ω
CL = 50 pF
(see Note A)
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2 × VCC
Open
LOAD CIRCUIT
3V
Timing Input
1.5 V
0V
tw
tsu
3V
1.5 V
Input
th
1.5 V
3V
1.5 V
Data Input
1.5 V
0V
0V
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
Output
Control
(low-level
enabling)
3V
1.5 V
0V
tPZL
3V
Input
1.5 V
1.5 V
0V
tPLH
Output
50% VCC
tPLZ
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
VOH
50% VCC
VOL
≈VCC
50% VCC
tPZH
tPHL
1.5 V
VOL + 0.3 V
VOL
tPHZ
Output
Waveform 2
S1 at Open
(see Note B)
50% VCC
VOH – 0.3 V
VOH
≈0 V
VOLTAGE WAVEFORMS
VOLTAGE WAVEFORMS
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 Ω, tr ≤ 2.5 ns, tf ≤ 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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