RENESAS HD74ACT373

HD74AC373/HD74ACT373
Octal Transparent Latch with 3-State Output
REJ03D0273–0200Z
(Previous ADE-205-394 (Z))
Rev.2.00
Jul.16.2004
Description
The HD74AC373/HD74ACT373 consists of eight latches with 3-state outputs from bus organized system applications.
The flip-flops appear transparent to the data when Latch Enable (LE) is High. When LE is Low, the data that meets the
setup time is latched. Data appears on the bus when the Output Enable (OE) is Low. When OE is High, the bus output
is in the high impedance state.
Features
• Eight Latches in a Single Package
• 3-State Outputs for Bus Interfacing
• Outputs Source/Sink 24 mA
• HD74AC373 has TTL-Compatible Inputs
• Ordering Information: Ex. HD74AC373
Part Name
HD74AC373P
Package Type
Package Code Package Abbreviation Taping Abbreviation (Quantity)
DIP-20 pin
DP-20N, -20NEV P
HD74AC373FPEL
SOP-20 pin (JEITA)
FP-20DAV
FP
EL (2,000 pcs/reel)
HD74AC373RPEL
SOP-20 pin (JEDEC) FP-20DBV
RP
EL (1,000 pcs/reel)
HD74AC373TELL
TSSOP-20 pin
T
ELL (2,000 pcs/reel)
TTP-20DAV
—
Notes: 1. Please consult the sales office for the above package availability.
2. The packages with lead-free pins are distinguished from the conventional products by adding V at the end of
the package code.
Rev.2.00, Jul.16.2004, page 1 of 9
HD74AC373/HD74ACT373
Pin Arrangement
OE 1
20 VCC
O0 2
19 O7
D0 3
18 D7
D1 4
17 D6
O1 5
16 O6
O2 6
15 O5
D2 7
14 D5
D3 8
13 D4
O3 9
12 O4
Gnd 10
11 LE
(Top view)
Logic Symbol
D0 D 1 D 2 D 3 D4 D5 D 6 D7
LE
OE
O0 O1 O2 O3 O4 O5 O6 O7
Pin Names
D0 – D 7
LE
OE
O0 – O 7
Data Inputs
Latch Enable Input
Output Enable Input
3-State Latch Outputs
Rev.2.00, Jul.16.2004, page 2 of 9
HD74AC373/HD74ACT373
Truth Table
Inputs
Outputs
OE
LE
On
Dn
H
X
X
Z
L
L
H
H
L
H
L
H
L
L
X
O0
H
L
Z
X
O0
:
:
:
:
:
High Voltage Level
Low Voltage Level
High Impedance
Immaterial
Previous O0 before Low-to-High Transition of Clock
Functional Description
The HD74AC373/HD74ACT373 contains eight D-type latches with 3-state standard outputs. When the Latch Enable
(LE) input is High, data on the Dn inputs enters the latches. In this condition the latches are transparent, i.e., a latch
output will change state each time its D input changes. When LE is Low, the latches store the information that was
present on the D inputs setup time proceding the High-to-Low transition of LE. The 3-state standard outputs are
controlled by the Output Enable (OE) input. When OE is Low, the standard outputs are in the 2-state mode. When OE
is High, the standard outputs are in the high impedance mode but this does not interfere with entering new data into the
latches.
Logic Diagram
D1
D0
D
D2
D
G
O
D3
D
G
O
D4
D
G
O
D5
D
G
O
D6
D
G
O
D7
D
G
O
D
G
O
G
O
LE
OE
O0
O1
O2
O3
O4
O5
O6
O7
Please note that this diagram is provided only for the understanding of logic operations and should not be
used to estimate propagation delays.
Absolute Maximum Ratings
Item
Supply voltage
DC input diode current
Symbol
Ratings
Unit
Condition
VCC
IIK
–0.5 to 7
–20
V
mA
VI
mA
V
VI = Vcc+0.5V
DC input voltage
20
–0.5 to Vcc+0.5
DC output diode current
IOK
–50
50
mA
mA
VO = –0.5V
VO = Vcc+0.5V
DC output voltage
DC output source or sink current
VO
IO
–0.5 to Vcc+0.5
±50
V
mA
DC VCC or ground current per output pin
Storage temperature
ICC, IGND
Tstg
±50
–65 to +150
mA
°C
Rev.2.00, Jul.16.2004, page 3 of 9
VI = –0.5V
HD74AC373/HD74ACT373
Recommended Operating Conditions: HD74AC373
Item
Symbol
Ratings
Unit
Supply voltage
Input and Output voltage
VCC
VI, VO
2 to 6
0 to VCC
V
V
Operating temperature
Input rise and fall time
(except Schmitt inputs)
VIN 30% to 70% VCC
Ta
tr, tf
–40 to +85
8
°C
ns/V
Condition
VCC = 3.0V
VCC = 4.5 V
VCC = 5.5 V
DC Characteristics: HD74AC373
Item
Input Voltage
Symbol
VIH
VIL
Output voltage
VOH
VOL
Ta = 25°°C
Vcc
(V)
3.0
min.
2.1
typ.
1.5
max.
—
Ta = –40 to
+85°°C
min.
max.
2.1
—
4.5
5.5
3.15
3.85
2.25
2.75
—
—
3.15
3.85
—
—
3.0
4.5
—
—
1.50
2.25
0.9
1.35
—
—
0.9
1.35
5.5
3.0
—
2.9
2.75
2.99
1.65
—
—
2.9
1.65
—
4.5
5.5
4.4
5.4
4.49
5.49
—
—
4.4
5.4
—
—
3.0
4.5
2.58
3.94
—
—
—
—
2.48
3.80
—
—
5.5
3.0
4.94
—
—
0.002
—
0.1
4.80
—
—
0.1
4.5
5.5
—
—
0.001
0.001
0.1
0.1
—
—
0.1
0.1
3.0
4.5
—
—
—
—
0.32
0.32
—
—
0.37
0.37
Unit
V
Condition
VOUT = 0.1 V or VCC –0.1 V
VOUT = 0.1 V or VCC –0.1 V
V
VIN = VIL or VIH
IOUT = –50 µA
VIN = VIL or VIH
IOH = –12 mA
IOH = –24 mA
IOH = –24 mA
VIN = VIL or VIH
IOUT = 50 µA
VIN = VIL or VIH
IOL = 12 mA
IOL = 24 mA
Input leakage
current
IIN
5.5
5.5
—
—
—
—
0.32
±0.1
—
—
0.37
±1.0
µA
VIN = VCC or GND
3 State current
IOZ
5.5
—
—
±0.5
—
±5.0
µA
IOLD
5.5
—
—
—
86
—
mA
VIN(OE) = VIL, VIH
VIN = VCC or GND
VOUT = VCC or GND
VOLD = 1.1 V
IOHD
ICC
5.5
5.5
—
—
—
—
—
8.0
–75
—
—
80
mA
µA
VOHD = 3.85 V
VIN = VCC or ground
Dynamic output
current*
Quiescent supply
current
IOL = 24 mA
*Maximum test duration 2.0 ms, one output loaded at a time.
Recommended Operating Conditions: HD74ACT373
Item
Symbol
Ratings
Unit
Supply voltage
Input and output voltage
VCC
VI, VO
2 to 6
0 to VCC
V
V
Operating temperature
Input rise and fall time
(except Schmitt inputs)
VIN 0.8 to 2.0 V
Ta
tr, tf
–40 to +85
8
°C
ns/V
Rev.2.00, Jul.16.2004, page 4 of 9
Condition
VCC = 4.5V
VCC = 5.5V
HD74AC373/HD74ACT373
DC Characteristics: HD74ACT373
Item
Input voltage
Output voltage
Symbol
Ta = 25°°C
VIH
4.5
min.
2.0
typ.
1.5
max.
—
Ta = –40 to
+85°°C
min.
max.
2.0
—
VIL
5.5
4.5
2.0
—
1.5
1.5
—
0.8
2.0
—
—
0.8
VOH
5.5
4.5
—
4.4
1.5
4.49
0.8
—
—
4.4
0.8
—
5.5
4.5
5.4
3.94
5.49
—
—
—
5.4
3.80
—
—
5.5
4.5
4.94
—
—
0.001
—
0.1
4.80
—
—
0.1
5.5
4.5
—
—
0.001
—
0.1
0.32
—
—
0.1
0.37
—
—
—
—
0.32
±0.1
—
—
0.37
±1.0
VOL
VCC
(V)
Unit
V
Condition
VOUT = 0.1 V or VCC–0.1 V
VOUT = 0.1 V or VCC –0.1 V
V
VIN = VIL or VIH
IOUT = –50 µA
VIN = VIL
IOH = –24 mA
IOH = –24 mA
VIN = VIL or VIH
IOUT = 50 µA
VIN = VIL
IOL = 24 mA
Input current
IIN
5.5
5.5
IOL = 24 mA
µA
VIN = VCC or GND
3 State current
IOZ
5.5
—
—
±0.5
—
±5.0
µA
ICC/input current
ICCT
5.5
—
0.6
—
—
1.5
mA
VIN = VIL, VIH
VOUT = VCC or GND
VIN = VCC–2.1 V
Dynamic output
current*
IOLD
IOHD
5.5
5.5
—
—
—
—
—
—
86
–75
—
—
mA
mA
VOLD = 1.1 V
VOHD = 3.85 V
Quiescent supply
current
ICC
5.5
—
—
8.0
—
80
µA
VIN = VCC or ground
*Maximum test duration 2.0 ms, one output loaded at a time.
AC Characteristics: HD74AC373
Item
Symbol
VCC (V)*1
Ta = +25°C
CL = 50 pF
Min
Typ
Max
Ta = –40°C to +85°C
CL = 50 pF
Min
Max
Unit
Propagation delay
Dn to On
tPLH
3.3
5.0
1.0
1.0
10.0
7.0
13.5
9.5
1.0
1.0
15.0
10.5
ns
Propagation delay
Dn to On
tPHL
3.3
5.0
1.0
1.0
9.5
7.0
13.0
9.5
1.0
1.0
14.5
10.5
ns
Propagation delay
LE to On
tPLH
3.3
5.0
1.0
1.0
10.0
7.5
13.5
9.5
1.0
1.0
15.0
10.5
ns
Propagation delay
LE to On
tPHL
3.3
5.0
1.0
1.0
9.5
7.0
12.5
9.5
1.0
1.0
14.0
10.5
ns
Output enable time
tZH
3.3
5.0
1.0
1.0
9.0
7.0
11.5
8.5
1.0
1.0
13.0
9.5
ns
Output enable time
tZL
3.3
5.0
1.0
1.0
8.5
6.5
11.5
8.5
1.0
1.0
13.0
9.5
ns
Output disable time
tHZ
3.3
5.0
1.0
1.0
10.0
8.0
12.5
11.0
1.0
1.0
14.5
12.5
ns
Output disable time
tLZ
3.3
5.0
1.0
1.0
8.0
6.5
11.5
8.5
1.0
1.0
12.5
10.0
ns
Note:
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
Rev.2.00, Jul.16.2004, page 5 of 9
HD74AC373/HD74ACT373
AC Characteristics: HD74AC373
Ta = +25°C
CL = 50 pF
Ta = –40°C to +85°C
CL = 50 pF
tPLH
VCC (V)*1
Min
5.0
1.0
Typ
8.5
Max
10.0
1.0
Max
11.5
ns
Propagation delay
Dn to On
Propagation delay
LE to On
tPHL
5.0
1.0
8.0
10.0
1.0
11.5
ns
tPLH
5.0
1.0
8.5
11.0
1.0
11.5
ns
Propagation delay
LE to On
Output enable time
tPHL
5.0
1.0
8.0
10.0
1.0
11.5
ns
tZH
5.0
1.0
8.0
9.5
1.0
10.5
ns
Output enable time
Output disable time
tZL
tHZ
5.0
5.0
1.0
1.0
7.5
9.0
9.0
11.0
1.0
1.0
10.5
12.5
ns
ns
Output disable time
tLZ
5.0
1.0
7.5
8.5
1.0
10.0
ns
Item
Propagation delay
Dn to On
Note:
Symbol
Min
Unit
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
AC Operating Requirements: HD74AC373
Ta = +25°C
CL = 50 pF
Item
Setup time, HIGH or LOW
Dn to LE
Hold time, HIGH or LOW
Dn to LE
LE pulse width, HIGH
Note:
Symbol VCC (V)*1
Typ
tsu
3.3
3.5
Ta = –40°C
to +85°C
CL = 50 pF
Guaranteed Minimum
5.5
6.0
Unit
ns
th
5.0
3.3
2.0
–3.0
4.0
0.0
4.5
0.0
ns
tw
5.0
3.3
–1.5
4.0
0.0
5.5
0.0
6.0
ns
2.0
4.0
4.5
5.0
1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
AC Operating Requirements: HD74ACT373
Ta = +25°C
CL = 50 pF
Item
Setup time, HIGH or LOW
Dn to LE
Hold time, HIGH or LOW
Dn to LE
LE pulse width, HIGH
Note:
Symbol VCC (V)*1
Typ
5.0
3.0
tsu
Ta = –40°C
to +85°C
CL = 50 pF
Guaranteed Minimum
7.0
8.0
ns
Unit
th
5.0
0.0
0.0
1.0
ns
tw
5.0
2.0
7.0
8.0
ns
1. Voltage Range 5.0 is 5.0 V ± 0.5 V
Capacitance
Item
Input capacitance
Power dissipation capacitance
Rev.2.00, Jul.16.2004, page 6 of 9
Symbol
CIN
CPD
Typ
4.5
40.0
Unit
pF
pF
Condition
VCC = 5.5 V
VCC = 5.0 V
HD74AC373/HD74ACT373
Package Dimensions
As of January, 2003
Unit: mm
24.50
25.40 Max
6.30
11
1
7.00 Max
20
10
2.54 ± 0.25
0.51 Min
1.27 Max
0.48 ± 0.10
2.54 Min 5.08 Max
1.30
0.89
7.62
+ 0.11
0.25 – 0.05
0˚ – 15˚
Package Code
JEDEC
JEITA
Mass (reference value)
DP-20N
—
Conforms
1.26 g
Unit: mm
24.50
25.40 Max
1
7.00 Max
11
6.30
20
10
1.30
2.54 ± 0.25
*0.48 ± 0.08
0.51 Min
1.27 Max
2.54 Min 5.08 Max
0.89
7.62
*0.25 ± 0.06
0˚ – 15˚
*NI/Pd/AU Plating
Rev.2.00, Jul.16.2004, page 7 of 9
Package Code
JEDEC
JEITA
Mass (reference value)
DP-20NEV
—
Conforms
1.26 g
HD74AC373/HD74ACT373
As of January, 2003
Unit: mm
12.6
13 Max
11
1
10
1.27
*0.40 ± 0.06
0.20
7.80 +– 0.30
1.15
0˚ – 8 ˚
0.10 ± 0.10
0.80 Max
*0.20 ± 0.05
2.20 Max
5.5
20
0.70 ± 0.20
0.15
0.12 M
Package Code
JEDEC
JEITA
Mass (reference value)
*Ni/Pd/Au plating
FP-20DAV
—
Conforms
0.31 g
As of January, 2003
Unit: mm
12.8
13.2 Max
11
1
10
1.27
*0.40 ± 0.06
0.20 ± 0.10
0.935 Max
*0.25 ± 0.05
2.65 Max
7.50
20
0.25
10.40 +– 0.40
1.45
0˚ – 8˚
0.57
0.70 +– 0.30
0.15
0.12 M
*Ni/Pd/Au plating
Rev.2.00, Jul.16.2004, page 8 of 9
Package Code
JEDEC
JEITA
Mass (reference value)
FP-20DBV
Conforms
—
0.52 g
HD74AC373/HD74ACT373
As of January, 2003
Unit: mm
6.50
6.80 Max
11
1
10
4.40
20
0.65
*0.20 ± 0.05
1.0
0.13 M
6.40 ± 0.20
*Ni/Pd/Au plating
Rev.2.00, Jul.16.2004, page 9 of 9
0.07 +0.03
–0.04
0.10
*0.15 ± 0.05
1.10 Max
0.65 Max
0˚ – 8˚
0.50 ± 0.10
Package Code
JEDEC
JEITA
Mass (reference value)
TTP-20DAV
—
—
0.07 g
Sales Strategic Planning Div.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
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