HD74AC194T-ELL [HITACHI]
Parallel In Parallel Out, AC Series, 4-Bit, Bidirectional, True Output, CMOS, PDSO16, TTP-16DA;
| 型号： | HD74AC194T-ELL |
| 厂家： | 
HITACHI SEMICONDUCTOR |
| 描述： | Parallel In Parallel Out, AC Series, 4-Bit, Bidirectional, True Output, CMOS, PDSO16, TTP-16DA 光电二极管 逻辑集成电路 触发器 |
| 文件： | 总9页 (文件大小：64K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
HD74AC194
4-bit Bidirectional Unviersal Shift Register
ADE-205-379 (Z)
1st. Edition
Sep. 2000
Description
This bidirectional shift register is designed to incorporate virtually all of the features a system designer may
want in a shift register. It features parallel inputs, parallel outputs, right shift and left shift serial inputs,
operating mode control inputs, and a direct overriding clear line. The register has four destinct modes of
operation: parallel (broadside) load, shift right (in the direction Q0 toward Q3); shift left; inhibit clock (do
nothing).
Synchronous parallel loading is accomplished by applying the four bits of data and taking both mode
control inputs, S0 and S1, high. The data are loaded into their respective flip-flops and appear at the output
after the positive transition of the clock input. During loading, serial data flow is inhibited. Shift right is
accomplished synchronously with the rising edge of the clock pulse when S0 is high and S1 is low. Serial
date for this mode is entered at the shift right data input. When S0 is low and S1 is high, data shifts left
synchronously and new data is entered at the shifts left serial input. Clocking of the flip-flops is inhibited
when both mode control inputs are low. The mode control inputs should be changed only when the clock
input is high.
Features
•
•
•
Asynchronous Master Reset
Hole (Do Nothing) Mode
Outputs Source/Sink 24 mA
HD74AC194
Pin Arrangement
1
2
3
4
5
16 VCC
15 Q0
MR
DSR
P0
14
13
Q1
Q2
P1
P2
12 Q3
11 CP
10 S1
P3 6
7
8
DSL
GND
9
S0
(Top view)
Logic Symbol
DSR P0 P1 P2 P3 DSL
S0
S1
CP
MR
Q0
Q1
Q2
Q3
Pin Names
S0, S1
Mode Control Inputs
P0 to P3 Parallel Data Inputs
DSR
DSL
CP
Serial Data Input (Shift Right)
Serial Data Input (Shift Left)
Clock Pulse Input (Active Rising Edge)
Asynchronous Master Reset Input (Active LOW)
MR
Q0 to Q3 Parallel Outputs
2
HD74AC194
Logic Diagram
DSL
P3
P2
P1
P0
DSR
S0
S1
D
C
C
D
C
C
D
C
C
D
C
C
Q
Q
Q
Q
CL CL
CL CL
CL CL
CL CL
CP
MR
Q3
Q2
Q1
Q0
Mode Select Table
Inputs
Output
Operating Mode
Reset
MR
L
S1
S0
X
L
DSR
DSL
Pn
X
Q0
L
Q1
L
Q2
L
Q3
X
L
X
X
X
X
L
X
X
L
L
Hold
H
X
q0
q1
q1
L
q1
q2
q2
q0
q0
p1
q2
q3
q3
q1
q1
p2
q3
L
Shift Left
H
H
H
L
L
X
H
L
H
X
X
X
X
H
q2
q2
p3
Shift Right
H
H
H
H
X
H
L
H
X
X
H
Parallel Load
H
H
pn
p0
H
L
: HIGH Voltage Level
: LOW Voltage Level
pn (qn) : Lower case letters indicate the state of the referenced input (or output) one setup time prior to the
LOW-to-HIGH clock transition
X
: Immaterial
3
HD74AC194
Timing Diagram
CP
Mode
S0
Control
S1
Inputs
MR
Parallel
Data
DSH
Inputs
DSL
P0
H
L
Parallel
Data
P1
P2
H
L
Inputs
P3
Q0
Q1
Q2
Outputs
Q3
Shift Right
Shift Left
Inhibit
Clear
Load
Clear
DC Characteristics (unless otherwise specified)
Item
Symbol Max
Unit
Condition
Maximum quiescent supply current
ICC
80
µA
VIN = VCC or ground, VCC = 5.5 V,
Ta = Worst case
Maximum quiescent supply current
ICC
8.0
µA
VIN = VCC or ground, VCC = 5.5 V,
Ta = 25°C
4
HD74AC194
AC Characteristics: HD74AC194
Ta = +25°C
Ta = –40°C to +85°C
CL = 50 pF
CL = 50 pF
Min
65
Item
Symbol VCC (V)*1
Min
75
Typ
Max
Max
Unit
Maximum clock
frequency
fmax
tPLH
tPHL
tPHL
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
—
—
—
—
—
—
—
—
MHz
100
1.0
1.0
1.0
1.0
1.0
1.0
85
Propagation delay
CP to Qn
13.0
10.0
13.0
10.0
10.5
8.0
1.0
15.0
11.5
15.0
11.5
12.5
9.0
ns
ns
ns
1.0
Propagation delay
CP to Qn
1.0
1.0
Propagation delay
MR to Qn
1.0
1.0
Note: 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: HD74AC194
Ta = –40°C
to +85°C
Ta = +25°C
CL = 50 pF
CL = 50 pF
Item
Symbol VCC (V)*1 Typ
Guaranteed Minimum
Unit
Setup time, HIGH or LOW
Pn or DSR or DSL to CP
Hold time, HIGH or LOW
Pn or DSR or DSL to CP
Setup time, HIGH or LOW
Sn to CP
tsu
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
3.3
5.0
—
—
—
—
—
—
—
—
—
—
—
—
5.5
4.0
2.0
1.5
6.0
4.5
0.0
0.0
0.5
0.5
5.5
4.5
7.0
5.0
3.0
2.0
7.5
5.5
0.0
0.0
0.5
0.5
7.0
5.0
ns
ns
ns
ns
ns
ns
th
tsu
Hold time, HIGH or LOW
Sn to CP
th
Recovery time
trec
MR to CP
Pulse width
tw
Note: 1. Voltage Range 3.3 is 3.3 V ± 0.3 V
Voltage Range 5.0 is 5.0 V ± 0.5 V
5
HD74AC194
Capacitance
Item
Symbol
CIN
Typ
4.5
Unit
pF
Condition
VCC = 5.5 V
VCC = 5.0 V
Input capacitance
Power dissipation capacitance
CPD
100
pF
6
HD74AC194
Package Dimensions
Unit: mm
19.20
20.00 Max
16
1
9
8
1.3
1.11 Max
7.62
+ 0.13
– 0.05
0.25
2.54 ± 0.25
0.48 ± 0.10
0° – 15°
Hitachi Code
DP-16
JEDEC
EIAJ
Mass (reference value)
Conforms
Conforms
1.07 g
Unit: mm
10.06
10.5 Max
9
8
16
1
+ 0.20
7.80
– 0.30
0.80 Max
1.15
0° – 8°
1.27
0.70 ± 0.20
*0.42 ± 0.08
0.40 ± 0.06
0.15
M
0.12
Hitachi Code
JEDEC
FP-16DA
—
EIAJ
Conforms
0.24 g
*Dimension including the plating thickness
Base material dimension
Mass (reference value)
7
HD74AC194
Unit: mm
9.9
10.3 Max
9
16
1
8
1.27
+ 0.10
6.10
– 0.30
1.08
0.635 Max
0° – 8°
+ 0.67
0.60
– 0.20
*0.42 ± 0.08
0.40 ± 0.06
0.15
0.25
M
Hitachi Code
JEDEC
EIAJ
FP-16DN
Conforms
Conforms
0.15 g
*Dimension including the plating thickness
Base material dimension
Mass (reference value)
Unit: mm
5.00
5.30 Max
16
9
1
8
0.65
0.13 M
0.65 Max
1.0
+ 0.08
– 0.07
*0.22
0.20 ± 0.06
6.40 ± 0.20
0° – 8°
0.50 ± 0.10
0.10
Hitachi Code
JEDEC
TTP-16DA
—
EIAJ
—
0.05 g
*Dimension including the plating thickness
Base material dimension
Mass (reference value)
8
HD74AC194
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 fail-
safes, 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.
Hitachi, Ltd.
Semiconductor & Integrated Circuits.
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: Tokyo (03) 3270-2111 Fax: (03) 3270-5109
URL
NorthAmerica
Europe
Asia
: http://semiconductor.hitachi.com/
: http://www.hitachi-eu.com/hel/ecg
: http://sicapac.hitachi-asia.com
Japan
: http://www.hitachi.co.jp/Sicd/indx.htm
For further information write to:
Hitachi Semiconductor
(America) Inc.
179 East Tasman Drive, Dornacher Straβe 3
Hitachi Europe GmbH
Electronic Components Group
Hitachi Asia Ltd.
Hitachi Tower
16 Collyer Quay #20-00,
Singapore 049318
Hitachi Asia (Hong Kong) Ltd.
Group III (Electronic Components)
7/F., North Tower,
San Jose,CA 95134
D-85622 Feldkirchen, Munich
World Finance Centre,
Tel: <1> (408) 433-1990 Germany
Fax: <1>(408) 433-0223 Tel: <49> (89) 9 9180-0
Fax: <49> (89) 9 29 30 00
Tel : <65>-538-6533/538-8577
Fax : <65>-538-6933/538-3877
URL : http://www.hitachi.com.sg
Harbour City, Canton Road
Tsim Sha Tsui, Kowloon,
Hong Kong
Tel : <852>-(2)-735-9218
Fax : <852>-(2)-730-0281
URL : http://www.hitachi.com.hk
Hitachi Europe Ltd.
Electronic Components Group.
Whitebrook Park
Lower Cookham Road
Maidenhead
Hitachi Asia Ltd.
(Taipei Branch Office)
4/F, No. 167, Tun Hwa North Road,
Hung-Kuo Building,
Taipei (105), Taiwan
Berkshire SL6 8YA, United Kingdom
Tel: <44> (1628) 585000
Fax: <44> (1628) 585160
Tel : <886>-(2)-2718-3666
Fax : <886>-(2)-2718-8180
Telex : 23222 HAS-TP
URL : http://www.hitachi.com.tw
Copyright Hitachi, Ltd., 2000. All rights reserved. Printed in Japan.
Colophon 2.0
9
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