HITACHI HD74HC597

HD74HC597
8-bit Latch/Shift Register
Description
The HD74HC597 consists of an 8-bit storage latch feeding a parallel-in, serial-out 8-bit shift register. Both
the storage register and shift register have positive-edge triggered clocks. The shift register also has direct
load (from storage) and clear inputs.
Features
•
•
•
•
•
High Speed Operation: tpd (SCK to QH’) = 14 ns typ (CL = 50 pF)
High Output Current: Fanout of 10 LSTTL Loads
Wide Operating Voltage: VCC = 2 to 6 V
Low Input Current: 1 µA max
Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C)
Function Table
SCK
SLoad
SCLR
Function
X
X
X
Data loaded to input latches
X
L
H
Data loaded from inputs to shift register
X
X
L
H
Data transferred from input latches to shift register
X
X
L
L
Invalid logic, state of shift register indeterminate when signals
removed
X
X
H
L
Shift register cleared
H
H
Shift register clocked Qn = Qn – 1, QA = SER
RCK
X
HD74HC597
Pin Arrangement
B 1
16 VCC
C 2
15 A
D 3
14 SER
E 4
13 S Load
F 5
12 RCK
G 6
11 SCK
H 7
10 SCLR
GND 8
9 Q'H
(Top view)
2
HD74HC597
Logic Diagram
SCLR
SER
SCK
SLoad
RCK
A
DQ
C
SC
D
Q
R
B
DQ
C
SC
D
Q
R
DQ
C
SC
D
Q
R
C
D
E
F
G
H
Q'H
3
HD74HC597
DC Characteristics
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Input voltage
VIH
2.0
1.5 —
—
1.5
—
V
4.5
3.15 —
—
3.15
—
6.0
4.2 —
—
4.2
—
2.0
—
—
0.5
—
0.5
4.5
—
—
1.35 —
1.35
6.0
—
—
1.8
—
1.8
2.0
1.9 2.0 —
1.9
—
4.5
4.4 4.5 —
4.4
—
6.0
5.9 6.0 —
5.9
—
4.5
4.18 —
—
4.13
—
I OH = –4 mA
6.0
5.68 —
—
5.63
—
I OH = –5.2 mA
2.0
—
0.0 0.1
—
0.1
4.5
—
0.0 0.1
—
0.1
6.0
—
0.0 0.1
—
0.1
4.5
—
—
0.26 —
0.33
I OL = 4 mA
6.0
—
—
0.26 —
0.33
I OL = 5.2 mA
VIL
Output voltage
VOH
VOL
Test Conditions
V
V
V
Vin = VIH or VIL I OH = –20 µA
Vin = VIH or VIL I OL = 20 µA
Input current
Iin
6.0
—
—
±0.1 —
±1.0
µA
Vin = VCC or GND
Quiescent supply
current
I CC
6.0
—
—
4.0
40
µA
Vin = VCC or GND, Iout = 0 µA
4
—
HD74HC597
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns)
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Maximum clock
f max
2.0
—
—
5
—
4
MHz
4.5
—
—
27
—
21
6.0
—
—
31
—
24
Propagation delay t PLH
2.0
—
—
175 —
220
time
4.5
—
14
35
—
44
6.0
—
—
30
—
37
2.0
—
—
210 —
265
4.5
—
17
42
—
53
6.0
—
—
36
—
45
2.0
100 —
—
125
—
4.5
20
—
–
25
—
6.0
17
—
—
21
—
2.0
100 —
—
125
—
4.5
20
—
—
25
—
6.0
17
—
—
21
—
2.0
100 —
—
125
—
4.5
20
1
—
25
—
6.0
17
—
—
21
—
2.0
100 —
—
125
—
4.5
20
0
—
25
—
6.0
17
—
—
21
—
2.0
5
—
—
5
—
4.5
5
—
—
5
—
6.0
5
—
—
5
—
2.0
5
—
—
5
—
4.5
5
—
—
5
—
6.0
5
—
—
5
—
2.0
80
—
—
100
—
4.5
16
7
—
20
—
6.0
14
—
—
17
—
frequency
Removal time
Setup time
Hold time
Pulse width
t PHL
t rem
t su
th
tw
Test Conditions
ns
SCK or SLoad or SCLR to Q H ’
ns
RCK to Q H ’
ns
ns
RCK to SCK
ns
SER to SCK
ns
Data to RCK
ns
SCK to SA
ns
LCK to Data
ns
5
HD74HC597
AC Characteristics (CL = 50 pF, Input tr = tf = 6 ns) (cont)
Ta = –40 to
+85°C
Ta = 25°C
Item
Symbol
VCC (V) Min Typ Max Min
Max
Unit
Output rise/fall
t TLH
2.0
—
—
75
—
95
ns
time
t THL
4.5
—
4
15
—
19
6.0
—
—
13
—
16
—
—
5
10
—
10
Input capacitance
6
Cin
pF
Test Conditions
Unit: mm
19.20
20.00 Max
1
7.40 Max
9
6.30
16
8
1.3
0.48 ± 0.10
2.54 Min 5.06 Max
2.54 ± 0.25
0.51 Min
1.11 Max
7.62
+ 0.13
0.25 – 0.05
0° – 15°
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
DP-16
Conforms
Conforms
1.07 g
Unit: mm
10.06
10.5 Max
9
1
8
1.27
*0.42 ± 0.08
0.40 ± 0.06
0.10 ± 0.10
0.80 Max
*0.22 ± 0.05
0.20 ± 0.04
2.20 Max
5.5
16
0.20
7.80 +– 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
*Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-16DA
—
Conforms
0.24 g
Unit: mm
9.9
10.3 Max
9
1
8
0.635 Max
*0.42 ± 0.08
0.40 ± 0.06
0.15
*0.22 ± 0.03
0.20 ± 0.03
1.27
0.11
0.14 +– 0.04
1.75 Max
3.95
16
0.10
6.10 +– 0.30
1.08
0° – 8°
0.67
0.60 +– 0.20
0.25 M
*Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-16DN
Conforms
Conforms
0.15 g
Cautions
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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