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LS 374
Datasheet
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FREI LS 374 Datasheet

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Page 1
HD74LS374
Octal D-type Edge-triggered Flip-Flops (with three-state outputs)
REJ03D0483–0200
Rev.2.00
Feb.18.2005
Features
• Ordering Information
Part Name Package Type
HD74LS374P DILP-20 pin
HD74LS374FPEL SOP-20 pin (JEITA)
HD74LS374RPEL SOP-20 pin (JEDEC) Note: Please consult the sales office for the above package availability.
Package Code (Previous Code)
PRDP0020AC-B (DP-20NEV)
PRSP0020DD-B (FP-20DAV)
PRSP0020DC-A (FP-20DBV)
Package Abbreviation
P —
FP EL (2,000 pcs/reel)
RP EL (1,000 pcs/reel)
Taping Abbreviation (Quantity)
Pin Arrangement
Output
Control
1Q
1D
2D
2Q
3Q
3D
4D
4Q
GND
1
2
3
4
5
6
7
8
9
10 11
OE
CK
OE
OE
CK
OE
(Top view)
Q
DCK
D
Q
Q
DCK
D
Q
OE
CK
OE
OE
CK
OE
20
19
Q
DCK
18
17
D
Q
16
15
Q
DCK
14
13
D
Q
12
V
CC
8Q
8D
7D
7Q
6Q
6D
5D
5Q
Clock
Rev.2.00, Feb.18.2005, page 1 of 7
Page 2
HD74LS374
Function Table
Inputs Outputs
Output control Clock D Q
L ↑ H H L ↑ L L L L X Q
H X X Z Notes: H; high level, L; low level, X; irrelevant ↑; transition from low to high level Q Z; off (high-impedance) state of a three state output
; level of Q before the indicated steady state input conditions were established
0
Block Diagram
1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q
0
Q
CK CK CK CK CK CK CK CK
D
1DOutput
Control
Q
D
2D 3D 4D 5D 6D 7D 8D
Q
D
Q
D
Q
D
Q
D
Q
D
D
Q
Clock
Absolute Maximum Ratings
Item Symbol Ratings Unit
Supply voltage VCC 7 V Input voltage VIN 7 V Power dissipation PT 400 mW Storage temperature Tstg –65 to +150 °C Note: Voltage value, unless otherwise noted, are with respect to network ground terminal.
Recommended Operating Conditions
Item Symbol Min Typ Max Unit
Supply voltage VCC 4.75 5.00 5.25 V Output voltage VOH — — 5.5 V
Output current Operating temperature Topr –20 25 75 °C Clock pulse width Data setup time tsu 20↑ — — ns
Data hold time th 0↑ — — ns
“H” Level 15 — — ns “L” Level
IOH — — –2.6 mA
I
— — 24 mA
OL
tw
15 — — ns
Rev.2.00, Feb.18.2005, page 2 of 7
Page 3
HD74LS374
Electrical Characteristics
(Ta = –20 to +75 °C)
Item Symbol min. typ.* max. Unit Condition
Input voltage
Output voltage
Output current
Input current
Short-circuit output current IOS –30 — –130 mA VCC = 5.25 V Supply current ICC — 27 40 mA Input clamp voltage VIK — — –1.5 V VCC = 4.75 V, IIN = –18 mA
Note: * VCC = 5 V, Ta = 25°C
VIH 2.0 — — V VIL — — 0.8 V
VOH 2.4 — — V
V
OL
I
— — 20 VO = 2.7 V
OZH
I
— — –20
OZL
— — 0.4 IOL = 12 mA — — 0.5
µA
VCC = 4.75 V, VIH = 2 V, VIL = 0.8 V,
= –2.6 mA
I
OH
V
IOL = 24 mA
VCC = 4.75 V,
= 2 V, VIL = 0.8 V
V
IH
VCC = 5.25 V,
= 2 V, VIL = 0.8 V
VO = 0.4 V
V
IH
IIH — — 20 µA VCC = 5.25 V, VI = 2.7 V IIL — — –0.4 mA VCC = 5.25 V, VI = 0.4 V
— — 0.1 mA VCC = 5.25 V, VI = 7 V
I
I
VCC = 5.25 V,
= 4.5 V (Output control)
V
I
Switching Characteristics
Item Symbol Inputs Output min. typ. max. Unit Condition
Maximum clock frequency ƒ Propagation delay time
Output enable time
Output disable time
max
t
PLH
t
PHL
tZH — 20 28 tZL tHZ — 12 20 tLZ
(VCC = 5 V, Ta = 25°C)
Clock Q 35 50 — MHz
— 15 28
Clock Q
OC Q
OC Q
— 19 28
— 21 28
— 14 25
ns
C
= 45 pF,
L
= 667 Ω
R
L
CL = 5 pF,
= 667 Ω
R
L
Rev.2.00, Feb.18.2005, page 3 of 7
Page 4
HD74LS374
Testing Method
Test Circuit
V
CC
P.G.
Zout = 50Ω
P.G.
Zout = 50Ω
4.5V
Input
Input
OC
1D
2D
3D
4D
5D
See Function Table
6D
7D
8D
Clock
1Q
2Q
3Q
4Q
5Q
6Q
7Q
Output
Output
Output
Output
Output
Output
Output
Output
Load circuit 1
RL
S1
5kΩ
CL
Same as Load Circuit 1.
Same as Load Circuit 1.
Same as Load Circuit 1.
Same as Load Circuit 1.
Same as Load Circuit 1.
Same as Load Circuit 1.
2
S
Notes: 1. CL includes probe and jig capacitance.
2. All diodes are 1S2074(H).
8Q
Same as Load Circuit 1.
Rev.2.00, Feb.18.2005, page 4 of 7
Page 5
HD74LS374
Waveforms 1
Data
10%
1.3 V
Clock
Q
S1, S2 Closed
Notes: 1. Input pulse; t
Clock input; PRR = 1 MHz, duty cycle 50% Data input pulse; PRR = 500 kHz, duty cycle 50%
2. ƒ
max
: t
TLH
≤ 2.5 ns, t
Waveforms 2
t
t
su
TLH
90%
10%
TLH
t
TLH
90%
90%
t
PLH
1.3 V
t
w
1.3 V
1.3 V
≤ 15 ns, t
≤ 2.5 ns
THL
t
THL
90%
1.3 V 1.3 V 10%
t
THL
t
su
t
h
t
h
1.3 V
10%
t
w
t
PHL
1.3 V
≤ 6 ns
THL
3V
0V
3V
0V
V
V
OH
OL
t
TLH
90%
t
LZ
t
HZ
1
, S2 closed
S
0.5V
0.5V
S
1
, S2 closed
3V
0V
V
V
1.5V
OL
OH
1.5V
Output Control
90%
1.3V 1.3V
Waveform A
Waveform B
Notes: 1. Input pulse; t
t
THL
10% 10%
t
ZL
4.5V
S1 closed, S
2
1
S S
2
open
t
open, closed
1.3V
ZH
1.3V
0V
≤ 15 ns, t
TLH
≤ 6 ns, PRR = 1 MHz, duty cycle 50%
THL
2. Waveform A if for an output with internal conditions such that the ou tput is low except when disabled by the output control. Waveform B is for an output with internal conditions such that the output is high except when disabled by the output control.
Rev.2.00, Feb.18.2005, page 5 of 7
Page 6
HD74LS374
Package Dimensions
RENESAS CodeJEITA Package Code Previous Code PRDP0020AC-BP-DIP20-6.3x24.5-2.54
D
20 11
DP-20NEV
MASS[Typ.]
1.26g
E
1 10
0.89
Z
e c
b
3
b
P-SOP20-5.5x12.6-1.27 PRSP0020DD-B
20 11
RENESAS CodeJEITA Package Code Previous Code
*1
D
p
FP-20DAV
1
A
MASS[Typ.]
0.31g
Dimension in Millimeters
Reference
A
L
θ
e
1
( Ni/Pd/Au plating )
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2"
F
DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT
INCLUDE TRIM OFFSET.
Symbol
e
1
D
E
A
A
0.51
1
0.40 0.48
b
p
b
3
0.19 0.25 0.31
c
θ
e
2.29 2.54 2.79
Z
L
2.54
°
0
7.62
24.50
6.30
1.30
MaxNomMin
25.40
7.00
5.08
0.56
15
1.27
°
Index mark
1
Z
e
Rev.2.00, Feb.18.2005, page 6 of 7
b
p
E
H
E
*2
Terminal cross section
( Ni/Pd/Au plating )
10
*3
b
p
Mx
A
y
1
A
Detail F
c
Dimension in Millimeters
Reference
Symbol
D
E
A
2
A
1
L
1
L
A
b
p
b
1
c
c
1
0
°
θ
H
7.50 8.00
E
e
θ
x
y
Z
L
L
1
12.60
5.50
0.400.34
7.80
1.27
1.15
MaxNomMin
13.0
0.200.100.00
2.20
0.46
0.250.200.15
0.12
0.15
0.80
0.900.700.50
8
°
Page 7
HD74LS374
P-SOP20-7.5x12.8-1.27 PRSP0020DC-A
Index mark
1
Z
e
RENESAS CodeJEITA Package Code Previous Code
*1
D
*3
b
p
1120
10
FP-20DBV
Mx
MASS[Typ.]
0.52g
F
NOTE)
1. DIMENSIONS"*1 (Nom)"AND"*2" @ DO NOT INCLUDE MOLD FLASH.
2. DIMENSION"*3"DOES NOT @ INCLUDE TRIM OFFSET.
b
1
Detail F
p
c
Dimension in Millimeters
Reference
Symbol
D
E
A
2
A
1
L
1
L
A
b
p
b
1
c
c
1
0
°
θ
10.00 10.65
H
E
e
θ
x
y
Z
L
L
1
12.80
7.50
0.400.34
10.40
1.27
1.45
MaxNomMin
13.2
0.300.200.10
2.65
0.46
0.300.250.20
8
0.12
0.15
0.935
1.270.700.40
°
E
E
H
*2
Terminal cross section
( Ni/Pd/Au plating )
A
y
A
Rev.2.00, Feb.18.2005, page 7 of 7
Page 8
Sales Strategic Planning Div. Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Keep safety first in your circuit designs!
1. Renesas Technology Corp. puts the maximum effort into making semiconductor products better and more reliable, but there is always the possibility that trouble may occur with them. Trouble with semiconductors may lead to personal injury, fire or property damage. Remember to give due consideration to safety when making your circuit designs, with appropriate measures such as (i) placement of substitutive, auxiliary circuits, (ii) use of nonflammable material or (iii) prevention against any malfunction or mishap.
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