TC74AC299P/F
TOSHIBA CMOS Digital Integrated Circuit
Silicon Monolithic
TC74AC299P,TC74AC299F
8-Bit PIPO Shift Register with Asynchronousclear
TC74AC299P
The TC74AC299 is an advanced high speed CMOS 8-BIT PIPO
SHIFT REGISTER fabricated with silicon gate and double-layer
metal wiring C
2
MOS technology.
It achieves the high speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low power
dissipation.
It has a four modes (HOLD, SHIFT LEFT, SHIFT RIGHT and
LOAD DATA) controlled by the two selection inputs (S0, S1).
When one or both enable (
G1
,
G2
) are high, the eight I/O
outputs are forced to the high-impedance state; however,
sequential operation or clearing of the register is not affected.
All inputs are equipped with protection circuits against static
discharge or transient excess voltage.
TC74AC299F
Features (Note 1)(Note 2)
•
•
•
•
High speed: f
max
=
150 MHz (typ.) at V
CC
=
5 V
Low power dissipation: I
CC
=
8
μA
(max) at Ta
=
25°C
High noise immunity: V
NIH
=
V
NIL
=
28% V
CC
(min)
Symmetrical output impedance: |I
OH
|
=
I
OL
=
24 mA (min)
Capability of driving 50
Ω
•
•
•
tansmission lines.
∼
Balanced propagation delays: t
pLH
−
t
pHL
Wide operating voltage range: V
CC
(opr)
=
2 to 5.5 V
Pin and function compatible with 74F299
Note 1: Do not apply a signal to any bus terminal when it is in the output mode. Damage may result.
Note 2: All floating (high impedance) bus terminals must have their input levels fixed by means of pull up or pull
down resistors.
Weight
DIP20-P-300-2.54A
SOP20-P-300-1.27A
: 1.30 g (typ.)
: 0.22 g (typ.)
Pin Assignment
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2007-10-01
TC74AC299P/F
IEC Logic Symbol
Truth Table
Inputs
Mode
Function
select
S1
S0
Outputs Control
Serial
Inputs/
Outputs
Outputs
CLR
G1
(Note)
X
L
L
L
L
L
L
L
X
G2
(Note)
X
L
L
L
L
L
L
L
X
CK
SL
X
X
X
X
X
X
X
X
X
X
H
L
X
SR
X
X
X
X
H
L
X
X
X
A/QA
H/QH
QA’
QH’
L
Clear
L
L
Hold
Shift
Right
Shift
Left
Load
H
H
H
H
H
H
H
L
X
L
L
L
H
H
H
H
X
L
L
H
H
L
L
H
Z
L
L
QA0
H
L
QBn
QBn
a
Z
L
L
QH0
QGn
QGn
H
L
h
L
L
L
QA0
H
L
QBn
QBn
a
L
L
L
QH0
QGn
QGn
H
L
h
Note:
When one or both output controls are high, the eight input/output terminals are in the high-impedance
state; however sequential or clearing of the register is not affected.
Z: High impedance
Qn0: The level of Qn before the indicated steady-state input conditions were established.
Qnn: The level of Qn before the most recent active transition indicated by
↓
or
↑.
a, h: The level of the steady-state inputs A, H, respectively.
X: Don’t care
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2007-10-01
TC74AC299P/F
Timing Chart
System Diagram
(Note)
(Note)
(Note)
(Note)
(Note)
(Note)
Note:
Equivalent circuits
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2007-10-01
TC74AC299P/F
Absolute Maximum Ratings (Note 1)
Characteristics
Supply voltage range
DC input voltage
DC output voltage
Input diode current
Output diode current
DC output current
DC V
CC
/ground current
Power dissipation
Storage temperature
Symbol
V
CC
V
IN
V
OUT
I
IK
I
OK
I
OUT
I
CC
P
D
T
stg
Rating
−
0.5 to 7.0
−
0.5 to V
CC
+
0.5
−
0.5 to V
CC
+
0.5
±
20
±
50
±
50
±
250
Unit
V
V
V
mA
mA
mA
mA
mW
°C
500 (DIP) (Note 2)/180 (SOP)
−
65 to 150
Note 1: Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or
even destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly
even if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute
maximum ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/Derating Concept and Methods) and individual reliability data (i.e. reliability test
report and estimated failure rate, etc).
Note 2: 500 mW in the range of Ta
= −40
to 65°C. From Ta
=
65 to 85°C a derating factor of
−10
mW/°C should be
applied up to 300 mW.
Operating Ranges (Note)
Characteristics
Supply voltage
Input voltage
Output voltage
Operating temperature
Input rise and fall time
Symbol
V
CC
V
IN
V
OUT
T
opr
dt/dV
Rating
2.0 to 5.5
0 to V
CC
0 to V
CC
−
40 to 85
Unit
V
V
V
°C
ns/V
0 to 100 (V
CC
=
3.3
±
0.3 V)
0 to 20 (V
CC
=
5
±
0.5 V)
Note:
The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
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TC74AC299P/F
Electrical Characteristics
DC Characteristics
Test Condition
Characteristics
Symbol
V
CC
(V)
2.0
High-level input
voltage
V
IH
⎯
Ta
=
25°C
Min
1.50
2.10
3.85
⎯
⎯
⎯
Ta
= −
40 to
85°C
Max
⎯
⎯
⎯
Unit
Typ.
⎯
⎯
⎯
⎯
⎯
⎯
Min
1.50
2.10
3.85
⎯
⎯
⎯
Max
⎯
⎯
⎯
3.0
5.5
2.0
V
0.50
0.90
1.65
⎯
⎯
⎯
⎯
⎯
⎯
0.50
0.90
1.65
⎯
⎯
⎯
⎯
⎯
⎯
Low-level input
voltage
V
IL
⎯
3.0
5.5
2.0
V
1.9
2.9
4.4
2.58
3.94
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
2.0
3.0
4.5
⎯
⎯
⎯
1.9
2.9
4.4
2.48
3.80
3.85
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
⎯
I
OH
= −
50
μ
A
High-level output
voltage
V
OH
V
IN
=
V
IH
or
I
OH
= −
4 mA
V
IL
I
OH
= −
24 mA
I
OH
= −
75 mA
I
OL
=
50
μ
A
Low-level output
voltage
V
OL
V
IN
=
V
IH
or
I
OL
=
12 mA
V
IL
I
OL
=
24 mA
I
OL
=
75 mA
3-state output
off-state current
Input leakage
current
Quiescent supply
current
I
OZ
I
IN
I
CC
V
IN
=
V
IH
or V
IL
V
OUT
=
V
CC
or GND
V
IN
=
V
CC
or GND
V
IN
=
V
CC
or GND
(Note)
(Note)
3.0
4.5
3.0
4.5
5.5
2.0
3.0
4.5
3.0
4.5
5.5
5.5
5.5
5.5
V
0.0
0.0
0.0
⎯
⎯
⎯
⎯
⎯
⎯
0.1
0.1
0.1
0.36
0.36
⎯
±
0.5
±
0.1
0.1
0.1
0.1
0.44
0.44
1.65
±
5.0
±
1.0
μ
A
μ
A
μ
A
V
8.0
80.0
Note:
This spec indicates the capability of driving 50
Ω
transmission lines.
One output should be tested at a time for a 10 ms maximum duration.
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2007-10-01
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