HITACHI HD74ALVCH16721

HD74ALVCH16721
3.3-V 20-bit Flip Flops with 3-state Outputs
ADE-205-139B (Z)
3rd. Edition
December 1999
Description
The HD74ALVCH16721’s twenty flip flops are edge triggered D-type flip flops with qualified clock
storage. On the positive transition of the clock (CLK) input, the device provides true data at the Q outputs,
provided that the clock enable (CLKEN) input is low. If CLKEN is high, no data is stored. A buffered
output enable (OE) input can be used to place the twenty outputs in either a normal logic state (high or low
level) or a high impedance state. In the high impedance state, the outputs neither load nor drive the bus
lines significantly. The high impedance state and increased drive provide the capability to drive bus lines
without need for interface or pullup components. The output enable (OE) input does not affect the internal
operation of the flip flops. Old data can be retained or new data can be entered while the outputs are in the
high impedance state. Active bus hold circuitry is provided to hold unused or floating data inputs at a valid
logic level.
Features
• VCC = 2.3 V to 3.6 V
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High output current ±24 mA (@V CC = 3.0 V)
• Bus hold on data inputs eliminates the need for external pullup / pulldown resistors
HD74ALVCH16721
Function Table
Inputs
Output Q
OE
CLKEN
CLK
D
L
H
X
X
Q0 *1
L
L
↑
H
H
L
L
↑
L
L
L
L
L or H
X
Q0 *1
H
X
X
X
Z
H : High level
L : Low level
X : Immaterial
Z : High impedance
↑ : Low to high transition
Note: 1. Output level before the indicated steady state input conditions were established.
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HD74ALVCH16721
Pin Arrangement
OE 1
56 CLK
Q1 2
55 D1
Q2 3
54 D2
53 GND
GND 4
Q3 5
52 D3
Q4 6
VCC 7
51 D4
Q5 8
49 D5
Q6 9
48 D6
Q7 10
47 D7
50 VCC
GND 11
46 GND
Q8 12
45 D8
Q9 13
44 D9
Q10 14
43 D10
Q11 15
42 D11
Q12 16
41 D12
Q13 17
40 D13
GND 18
39 GND
Q14 19
38 D14
Q15 20
37 D15
Q16 21
36 D16
VCC 22
35 VCC
Q17 23
34 D17
Q18 24
33 D18
GND 25
32 GND
Q19 26
31 D19
Q20 27
30 D20
29 CLKEN
NC 28
(Top view)
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HD74ALVCH16721
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
VCC
–0.5 to 4.6
V
VI
–0.5 to 4.6
V
VO
–0.5 to VCC +0.5
V
Input clamp current
I IK
–50
mA
VI < 0
Output clamp current
I OK
±50
mA
VO < 0 or VO > VCC
Continuous output current
IO
±50
mA
VO = 0 to VCC
VCC, GND current / pin
I CC or IGND
±100
mA
Maximum power dissipation
at Ta = 55°C (in still air) *3
PT
1
W
Storage temperature
Tstg
–65 to 150
°C
Supply voltage
Input voltage
1
Output voltage
Notes:
*1, 2
Conditions
TSSOP
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.
1. The input and output negative voltage ratings may be exceeded if the input and output clamp
current ratings are observed.
2. This value is limited to 4.6 V maximum.
3. The maximum package power dissipation is calculated using a junction temperature of 150°C
and a board trace length of 750 mils.
Recommended Operating Conditions
Item
Symbol
Min
Max
Unit
Supply voltage
VCC
2.3
3.6
V
Input voltage
VI
0
VCC
V
Output voltage
VO
0
VCC
V
High level output current
I OH
—
–12
mA
—
–12
VCC = 2.7 V
—
–24
VCC = 3.0 V
—
12
—
12
VCC = 2.7 V
—
24
VCC = 3.0 V
Low level output current
I OL
mA
Input transition rise or fall rate
∆t / ∆v
0
10
ns / V
Operating temperature
Ta
–40
85
°C
Note: Unused control inputs must be held high or low to prevent them from floating.
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Conditions
VCC = 2.3 V
VCC = 2.3 V
HD74ALVCH16721
Logic Diagram
OE
CLK
CLKEN
D1
1
56
29
55
CE
C1
1D
2
Q1
To nineteen other channels
5
HD74ALVCH16721
Electrical Characteristics (Ta = –40 to 85°C)
Item
Symbol VCC (V) *1
Input voltage
VIH
VIL
Output voltage
VOH
Min
Max
Unit
2.3 to 2.7
1.7
—
V
2.7 to 3.6
2.0
—
2.3 to 2.7
—
0.7
2.7 to 3.6
—
0.8
I OH = –100 µA
Min to Max VCC–0.2
—
2.3
2.0
—
I OH = –6 mA, VIH = 1.7 V
2.3
1.7
—
I OH = –12 mA, VIH = 1.7 V
2.7
2.2
—
I OH = –12 mA, VIH = 2.0 V
3.0
2.4
—
I OH = –12 mA, VIH = 2.0 V
3.0
2.0
—
I OH = –24 mA, VIH = 2.0 V
Min to Max —
0.2
I OL = 100 µA
2.3
—
0.4
I OL = 6 mA, VIL = 0.7 V
2.3
—
0.7
I OL = 12 mA, VIL = 0.7 V
2.7
—
0.4
I OL = 12 mA, VIL = 0.8 V
3.0
—
0.55
I OL = 24 mA, VIL = 0.8 V
I IN
3.6
—
±5
I IN (hold)
2.3
45
—
VIN = 0.7 V
2.3
–45
—
VIN = 1.7 V
3.0
75
—
VIN = 0.8 V
3.0
–75
—
VIN = 2.0 V
3.6
—
±500
VIN = 0 to 3.6 V
I OZ
3.6
—
±10
µA
VOUT = VCC or GND
Quiescent supply current I CC
3.6
—
40
µA
VIN = VCC or GND
3.0 to 3.6
—
750
µA
VIN = one input at (VCC–0.6) V,
other inputs at V CC or GND
VOL
Input current
Off state output current
*2
∆I CC
V
Test Conditions
µA
VIN = VCC or GND
Notes: 1. For conditions shown as Min or Max, use the appropriate values under recommended operating
conditions.
2. For I/O ports, the parameter I OZ includes the input leakage current.
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HD74ALVCH16721
Switching Characteristics (Ta = –40 to 85°C)
Item
Symbol VCC (V)
Min
Typ
Max
Unit
2.5±0.2
150
—
—
MHz
2.7
150
—
—
3.3±0.3
150
—
—
t PLH
2.5±0.2
1.0
—
5.6
t PHL
2.7
1.0
—
5.1
3.3±0.3
1.0
—
4.3
t ZH
2.5±0.2
1.0
—
6.1
t ZL
2.7
1.0
—
5.8
3.3±0.3
1.0
—
4.8
t HZ
2.5±0.2
1.0
—
5.5
t LZ
2.7
1.0
—
4.7
3.3±0.3
1.0
—
4.4
2.5±0.2
4.0
—
—
2.7
3.6
—
—
3.3±0.3
3.1
—
—
2.5±0.2
3.4
—
—
2.7
3.1
—
—
3.3±0.3
2.7
—
—
2.5±0.2
0
—
—
2.7
0
—
—
3.3±0.3
0
—
—
2.5±0.2
0
—
—
2.7
0
—
—
3.3±0.3
0
—
—
2.5±0.2
3.3
—
—
2.7
3.3
—
—
3.3±0.3
3.3
—
—
Maximum clock frequency f max
Propagation delay time
Output enable time
Output disable time
Setup time
Hold time
Pulse width
t su
th
tw
FROM
(Input)
TO
(Output)
ns
CLK
Q
ns
OE
Q
ns
OE
Q
ns
Data before CLK↑
CLKEN before CLK↑
ns
Data after CLK↑
CLKEN after CLK↑
ns
Input capacitance
CIN
3.3
—
3.5
—
pF
Output capacitance
CO
3.3
—
7.0
—
pF
7
HD74ALVCH16721
• Test Circuit
See under table
500 Ω
S1
OPEN
GND
*1
C L = 50 pF
500 Ω
Load Circuit for Outputs
Symbol
t PLH / t PHL
t su / t h / t w
t ZH/ t HZ
t ZL / t LZ
Vcc=2.5±0.2V
Vcc=2.7V,
3.3±0.3V
OPEN
OPEN
GND
GND
4.6 V
6.0 V
Note: 1. C L includes probe and jig capacitance.
8
HD74ALVCH16721
• Waveforms – 1
tf
tr
90 %
Input
VIH
90 %
Vref
Vref
10 %
10 %
GND
t PHL
t PLH
VOH
Output
Vref
Vref
VOL
• Waveforms – 2
tr
VIH
90 %
Vref
Timing Input
10 %
tsu
GND
th
VIH
Data Input
Vref
Vref
GND
tw
VIH
Input
Vref
Vref
GND
9
HD74ALVCH16721
• Waveforms – 3
Output
Control
tf
tr
VIH
90 %
90 %
Vref
Vref
10 %
t ZL
10 %
GND
t LZ
≈VOH1
Vref
Waveform - A
t ZH
Waveform - B
VOL + 0.3 V
t HZ
VOH – 0.3 V
Vref
VOL
VOH
≈VOL1
TEST
VIH
Vref
VOH1
VOL1
Vcc=2.5±0.2V
Vcc=2.7V,
3.3±0.3V
2.3 V
2.7 V
1.2 V
2.3 V
1.5 V
3.0 V
GND
GND
Notes: 1. All input pulses are supplied by generators having the following characteristics:
PRR ≤ 10 MHz, Zo = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
2. Waveform – A is for an output with internal conditions such that the output is low
except when disabled by the output control.
3. Waveform – B is for an output with internal conditions such that the output is high
except when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
10
HD74ALVCH16721
Package Dimensions
Unit : mm
+0.3
14.00 –0.1
29
6.10 +0.3
–0.1
56
28
0.15 ± 0.05
0.08 M
0.40 Max
0.10
1.20 max
0.20 +0.1
–0.05
0.50
0.05 Min
1
8.10 ± 0.3
10° Max
0.50 ± 0.1
Hitachi code
EIAJ code
JEDEC code
TTP-56D
—
—
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HD74ALVCH16721
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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Copyright ' Hitachi, Ltd., 1999. All rights reserved. Printed in Japan.
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