MC74AC299DTR2 [ONSEMI]

IC AC SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO20, TSSOP-20, Shift Register;
MC74AC299DTR2
型号: MC74AC299DTR2
厂家: ONSEMI    ONSEMI
描述:

IC AC SERIES, 8-BIT BIDIRECTIONAL PARALLEL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO20, TSSOP-20, Shift Register

光电二极管 输出元件 逻辑集成电路 触发器
文件: 总12页 (文件大小:118K)
中文:  中文翻译
下载:  下载PDF数据表文档文件
MC74AC299, MC74ACT299  
8-Input Universal  
Shift/Storage Register with  
Common Parallel I/O Pins  
The MC74AC299/74ACT299 is an 8–bit universal shift/storage  
register with 3–state outputs. Four modes of operation are possible:  
hold (store), shift left, shift right and load data. The parallel load inputs  
and flip–flop outputs are multiplexed to reduce the total number of  
package pins. Additional outputs are provided for flip–flops Q , Q to  
http://onsemi.com  
PDIP–20  
N SUFFIX  
CASE 738  
0
7
allow easy serial cascading. A separate active LOW Master Reset is  
used to reset the register.  
20  
1
SO–20  
DW SUFFIX  
CASE 751  
Common Parallel I/O for Reduced Pin Count  
Additional Serial Inputs and Outputs for Expansion  
Four Operating Modes: Shift Left, Shift Right, Load and Store  
3–State Outputs for Bus–Oriented Applications  
Outputs Source/Sink 24 mA  
20  
1
TSSOP–20  
DT SUFFIX  
CASE 948E  
20  
ACT299 Has TTL Compatible Inputs  
1
V
CC  
S
1
DS  
7
Q
7
I/O  
7
I/O  
5
I/O  
3
I/O  
1
CP DS  
0
ORDERING INFORMATION  
20  
19  
18  
17  
16  
15  
14  
12  
13  
11  
Device  
Package  
PDIP–20  
PDIP–20  
SOIC–20  
Shipping  
MC74AC299N  
18 Units/Rail  
18 Units/Rail  
38 Units/Rail  
MC74ACT299N  
MC74AC299DW  
MC74AC299DWR2  
MC74ACT299DW  
SOIC–20 1000 Tape & Reel  
SOIC–20 38 Units/Rail  
1
2
3
4
5
6
7
9
8
10  
S
0
OE  
1
OE  
2
I/O  
6
I/O  
4
I/O  
2
I/O  
0
Q
0
MR GND  
Figure 1. Pinout: 20–Lead Packages Conductors  
MC74ACT299DWR2 SOIC–20 1000 Tape & Reel  
(Top View)  
MC74AC299DT  
MC74AC299DTR2  
MC74ACT299DT  
TSSOP–20  
TSSOP–20 2500 Tape & Reel  
TSSOP–20 75 Units/Rail  
75 Units/Rail  
PIN ASSIGNMENT  
PIN  
FUNCTION  
MC74ACT299DTR2 TSSOP–20 2500 Tape & Reel  
CP  
Clock Pulse Input  
DEVICE MARKING INFORMATION  
See general marking information in the device marking  
section on page 9 of this data sheet.  
DS  
DS  
Serial Data Input for Right Shift  
Serial Data Input for Left Shift  
Mode Select Inputs  
0
7
S , S  
0
1
MR  
Asynchronous Master Reset  
3–State Output Enable Inputs  
Parallel Data Inputs or 3–State Parallel Outputs  
Serial Outputs  
OE , OE  
1
2
I/O –I/O  
0
7
Q , Q  
0
7
Semiconductor Components Industries, LLC, 2001  
1
Publication Order Number:  
May, 2001 – Rev. 5  
MC74AC299/D  
MC74AC299, MC74ACT299  
DS  
Q
7
7
S
0
DS  
0
DS  
7
S
1
D
C
Q
Q
Q
Q
Q
Q
Q
Q
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
I/O  
Q
7
7
6
5
4
3
2
1
0
CP  
OE  
D
MR  
Q
I/O I/O I/O I/O I/O I/O I/O I/O  
0 0 1 2 3 4 5 6 7  
CP  
D
C
Figure 2. Logic Symbol  
D
CP  
D
C
D
CP  
D
C
D
CP  
D
C
D
CP  
D
C
D
CP  
D
C
D
CP  
D
C
D
S
S
0
1
OE  
OE  
2
1
DS  
CP  
Q
MR  
0
0
NOTE: That this diagram is provided only for the understanding of logic  
operations and should not be used to estimate propagation delays.  
Figure 3. Logic Diagram  
http://onsemi.com  
2
MC74AC299, MC74ACT299  
FUNCTIONAL DESCRIPTION  
A HIGH signal on either OE or OE disables the 3 state  
1 2 -  
The MC74AC299/74ACT299 contains eight edge–triggered  
D–type flip–flops and the interstage logic necessary to  
perform synchronous shift left, shift right, parallel load and  
buffers and puts the I/O pins in the high impedance state. In  
this condition the shift, hold, load and reset operations can  
still occur. The 3–state buffers are also disabled by HIGH  
hold operations. The type of operation is determined by S  
signals on both S and S in preparation for a parallel load  
operation.  
0
0 1  
and S , as shown in the Truth Table. All flip–flop outputs are  
1
brought out through 3–state buffers to separate I/O pins that  
TRUTH TABLE  
Inputs  
also serve as data inputs in the parallel load mode. Q and Q  
0
7
are also brought out on other pins for expansion in serial  
Response  
shifting of longer words.  
MR  
S
S
CP  
X
1
0
A LOW signal on MR overrides the Select and CP inputs  
and resets the flip–flops. All other state changes are initiated  
by the rising edge of the clock. Inputs can change when the  
clock is in either state provided only that the recommended  
setup and hold times, relative to the rising edge of CP, are  
observed.  
L
X
X
Asynchronous Reset; Q –Q = LOW  
0
n
7
H
H
H
H
H
L
H
L
H
H
L
Parallel Load; I/O Q  
n
Shift Rights; DS Q , Q Q , etc.  
0
0
0
1
Shift Left; DS Q , Q Q , etc.  
7
7
7
6
L
X
Hold  
H = HIGH Voltage Level  
L = LOW Voltage Level  
X = Immaterial  
= LOW-to-HIGH Transition  
MAXIMUM RATINGS*  
Symbol  
Parameter  
DC Supply Voltage (Referenced to GND)  
Value  
Unit  
V
V
V
V
–0.5 to +7.0  
CC  
DC Input Voltage (Referenced to GND)  
DC Output Voltage (Referenced to GND)  
DC Input Current, per Pin  
–0.5 to V  
+0.5  
V
IN  
CC  
–0.5 to V  
+0.5  
V
OUT  
CC  
I
I
I
±20  
mA  
mA  
mA  
°C  
IN  
DC Output Sink/Source Current, per Pin  
±50  
±50  
OUT  
CC  
DC V  
or GND Current per Output Pin  
Storage Temperature  
CC  
T
stg  
–65 to +150  
*Maximum Ratings are those values beyond which damage to the device may occur. Functional operation should be restricted to the  
Recommended Operating Conditions.  
RECOMMENDED OPERATING CONDITIONS  
Symbol  
Parameter  
Min  
2.0  
4.5  
0
Typ  
5.0  
5.0  
Max  
6.0  
Unit  
AC  
V
V
Supply Voltage  
V
V
CC  
ACT  
5.5  
, V  
IN OUT  
DC Input Voltage, Output Voltage (Ref. to GND)  
V
CC  
V
CC  
V
CC  
V
CC  
V
CC  
V
CC  
@ 3.0 V  
@ 4.5 V  
@ 5.5 V  
@ 4.5 V  
@ 5.5 V  
150  
40  
25  
10  
8.0  
Input Rise and Fall Time (Note 1)  
AC Devices except Schmitt Inputs  
ns/V  
t , t  
r f  
Input Rise and Fall Time (Note 2)  
ACT Devices except Schmitt Inputs  
t , t  
r f  
ns/V  
T
J
Junction Temperature (PDIP)  
Operating Ambient Temperature Range  
Output Current – High  
140  
85  
°C  
°C  
T
A
–40  
25  
I
–24  
24  
mA  
mA  
OH  
OL  
I
Output Current – Low  
1. V from 30% to 70% V ; see individual Data Sheets for devices that differ from the typical input rise and fall times.  
IN  
CC  
2. V from 0.8 V to 2.0 V; see individual Data Sheets for devices that differ from the typical input rise and fall times.  
IN  
http://onsemi.com  
3
MC74AC299, MC74ACT299  
DC CHARACTERISTICS  
Symbol  
74AC  
74AC  
T
A
=
V
(V)  
CC  
T
= +25°C  
–40°C to  
+85°C  
Parameter  
Unit  
Conditions  
A
Typ  
Guaranteed Limits  
V
V
V
3.0  
4.5  
5.5  
1.5  
2.25  
2.75  
2.1  
3.15  
3.85  
2.1  
3.15  
3.85  
V
= 0.1 V  
– 0.1 V  
Minimum High Level  
Input Voltage  
IH  
OUT  
V
V
V
or V  
CC  
= 0.1 V  
OUT  
3.0  
4.5  
5.5  
1.5  
2.25  
2.75  
0.9  
1.35  
1.65  
0.9  
1.35  
1.65  
V
Maximum Low Level  
Input Voltage  
IL  
or V  
– 0.1 V  
CC  
3.0  
4.5  
5.5  
2.99  
4.49  
5.49  
2.9  
4.4  
5.4  
2.9  
4.4  
5.4  
I
= –50 µA  
Minimum High Level  
Output Voltage  
OH  
OUT  
*V = V or V  
IN IL IH  
3.0  
4.5  
5.5  
2.56  
3.86  
4.86  
2.46  
3.76  
4.76  
–12 mA  
–24 mA  
–24 mA  
V
V
V
I
OH  
V
OL  
3.0  
4.5  
5.5  
0.002  
0.001  
0.001  
0.1  
0.1  
0.1  
0.1  
0.1  
0.1  
I = 50 µA  
OUT  
Maximum Low Level  
Output Voltage  
*V = V or V  
IN IL  
IH  
3.0  
4.5  
5.5  
0.36  
0.36  
0.36  
0.44  
0.44  
0.44  
12 mA  
I
24 mA  
24 mA  
OL  
I
IN  
Maximum Input  
Leakage Current  
5.5  
5.5  
±0.1  
±0.6  
±1.0  
±6.0  
µA  
µA  
V = V , GND  
CC  
I
I
Maximum 3–State  
Current  
V (OE) = V , V  
OZT  
I
IL IH  
V = V , GND  
I
V
CC  
= V , GND  
CC  
O
I
I
I
5.5  
5.5  
75  
mA  
mA  
V
= 1.65 V Max  
†Minimum Dynamic  
Output Current  
OLD  
OHD  
CC  
OLD  
OHD  
–75  
V
V
= 3.85 V Min  
Maximum Quiescent  
Supply Current  
5.5  
8.0  
80  
µA  
= V or GND  
CC  
IN  
*All outputs loaded; thresholds on input associated with output under test.  
†Maximum test duration 2.0 ms, one output loaded at a time.  
NOTE:  
I
IN  
and I  
@ 3.0 V are guaranteed to be less than or equal to the respective limit @ 5.5 V V  
.
CC  
CC  
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)  
74AC  
74AC  
T
= –40°C  
A
T
C
= +25°C  
= 50 pF  
V
(V)  
*
Fig.  
No.  
A
L
CC  
to +85°C  
C
Symbol  
Parameter  
Unit  
= 50 pF  
L
Min  
Typ  
Max  
Min  
Max  
Maximum Input  
Frequency  
3.3  
5.0  
90  
130  
80  
105  
f
t
t
MHz  
ns  
3–3  
3–6  
3–6  
max  
Propagation Delay  
3.3  
5.0  
8.5  
5.5  
20.5  
14  
7.0  
4.5  
22  
15  
PLH  
PHL  
CP to Q  
0 or  
Q
7
Propagation Delay  
CP to Q  
3.3  
5.0  
8.5  
5.5  
21.5  
14.5  
7.0  
5.0  
23  
16  
ns  
Q
0 or  
7
*Voltage Range 3.3 V is 3.3 V ±0.3 V.  
Voltage Range 5.0 V is 5.0 V ±0.5 V.  
http://onsemi.com  
4
MC74AC299, MC74ACT299  
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)  
74AC  
74AC  
T
= –40°C  
A
V
(V)  
*
T
C
= +25°C  
Fig.  
No.  
CC  
A
L
to +85°C  
C
Symbol  
Parameter  
Unit  
= 50 pF  
Typ  
= 50 pF  
L
Min  
Max  
Min  
Max  
Propagation Delay  
CP to I/O  
3.3  
5.0  
9.0  
6.0  
20.5  
14.5  
7.5  
5.0  
22.5  
16  
t
t
t
t
t
t
t
t
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
3–6  
3–6  
3–6  
3–6  
3–7  
3–8  
3–7  
3–8  
PLH  
n
Propagation Delay  
CP to I/O  
3.3  
5.0  
10  
6.5  
23  
16  
8.5  
6.0  
24.5  
17.5  
PHL  
PHL  
PHL  
PZH  
PZL  
PHZ  
PLZ  
n
Propagation Delay  
MR to Q or Q  
3.3  
5.0  
9.0  
5.5  
22.5  
15.5  
7.5  
5.0  
25.0  
17.0  
0
7
Propagation Delay  
MR to I/O  
3.3  
5.0  
9.0  
5.5  
21.5  
15.0  
7.5  
5.0  
24.0  
16.5  
n
Output Enable Time  
OE to I/O  
3.3  
5.0  
7.0  
4.5  
18  
12.5  
6.0  
4.0  
19.5  
13.5  
n
Output Enable Time  
OE to I/O  
3.3  
5.0  
7.0  
5.0  
18  
12.5  
6.0  
4.0  
20.5  
14  
n
Output Disable Time  
OE to I/O  
3.3  
5.0  
6.5  
3.5  
18.5  
14  
5.5  
3.0  
19.5  
15  
n
Output Disable Time  
OE to I/O  
3.3  
5.0  
5.5  
3.5  
17  
12.5  
4.5  
2.0  
19  
13.5  
n
*Voltage Range 3.3 V is 3.3 V ±0.3 V.  
Voltage Range 5.0 V is 5.0 V ±0.5 V.  
AC OPERATING REQUIREMENTS  
74AC  
74AC  
T
= –40°C  
A
T
C
= +25°C  
= 50 pF  
V
CC  
(V)  
*
Fig.  
No.  
A
L
to +85°C  
= 50 pF  
Symbol  
Parameter  
Unit  
C
L
Typ  
Guaranteed Minimum  
Setup Time, HIGH or LOW  
or S to CP  
3.3  
5.0  
8.0  
5.0  
8.5  
5.5  
t
t
t
t
t
t
t
t
t
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
3–9  
3–9  
3–9  
3–9  
3–6  
3–6  
3–6  
3–9  
3–9  
s
h
s
h
s
h
S
0
1
Hold Time, HIGH or LOW  
or S to CP  
3.3  
5.0  
0.5  
1.0  
0.5  
1.0  
S
0
1
Setup Time, HIGH or LOW  
I/O to CP  
n
3.3  
5.0  
5.5  
3.5  
6.0  
4.0  
Hold Time, HIGH or LOW  
I/O to CP  
n
3.3  
5.0  
0
1.0  
0
1.0  
Setup Time, HIGH or LOW  
3.3  
5.0  
6.5  
4.0  
7.0  
4.5  
DS or DS to CP  
0
7
Hold Time, HIGH or LOW  
DS or DS to CP  
3.3  
5.0  
0
1.0  
0.5  
1.0  
0
7
3.3  
5.0  
4.5  
3.5  
5.0  
3.5  
CP Pulse Width, LOW  
MR Pulse Width, LOW  
w
3.3  
5.0  
4.5  
3.5  
5.0  
3.5  
w
Recovery TIme  
MR to CP  
3.3  
5.0  
1.5  
1.5  
1.5  
1.5  
rec  
*Voltage Range 3.3 V is 3.3 V ±0.3 V.  
Voltage Range 5.0 V is 5.0 V ±0.5 V.  
http://onsemi.com  
5
MC74AC299, MC74ACT299  
DC CHARACTERISTICS  
Symbol  
74ACT  
74ACT  
T
A
=
V
(V)  
CC  
T
= +25°C  
–40°C to  
+85°C  
Parameter  
Unit  
Conditions  
A
Typ  
Guaranteed Limits  
V
V
V
4.5  
5.5  
1.5  
1.5  
2.0  
2.0  
2.0  
2.0  
V
= 0.1 V  
– 0.1 V  
Minimum High Level  
Input Voltage  
IH  
OUT  
V
V
V
or V  
CC  
= 0.1 V  
OUT  
4.5  
5.5  
1.5  
1.5  
0.8  
0.8  
0.8  
0.8  
V
Maximum Low Level  
Input Voltage  
IL  
or V  
– 0.1 V  
CC  
4.5  
5.5  
4.49  
5.49  
4.4  
5.4  
4.4  
5.4  
I
= –50 µA  
Minimum High Level  
Output Voltage  
OH  
OUT  
*V = V or V  
IN IL IH  
4.5  
5.5  
3.86  
4.86  
3.76  
4.76  
V
V
V
–24 mA  
–24 mA  
I
OH  
V
OL  
4.5  
5.5  
0.001  
0.001  
0.1  
0.1  
0.1  
0.1  
I = 50 µA  
OUT  
Maximum Low Level  
Output Voltage  
*V = V or V  
IN IL  
IH  
4.5  
5.5  
0.36  
0.36  
0.44  
0.44  
24 mA  
24 mA  
I
OL  
I
IN  
Maximum Input  
Leakage Current  
5.5  
5.5  
±0.1  
±0.6  
±1.0  
±6.0  
µA  
µA  
V = V , GND  
CC  
I
I
Maximum 3-State  
Current  
V (OE) = V , V  
OZT  
I
IL IH  
V = V , GND  
I
V
CC  
= V , GND  
CC  
O
I  
Additional Max. I /Input  
CC  
5.5  
5.5  
5.5  
0.6  
1.5  
75  
mA  
mA  
mA  
V = V  
– 2.1 V  
CC  
CCT  
I
I
V
= 1.65 V Max  
= 3.85 V Min  
OHD  
†Minimum Dynamic  
Output Current  
OLD  
OLD  
I
–75  
V
V
OHD  
CC  
I
Maximum Quiescent  
Supply Current  
5.5  
8.0  
80  
µA  
= V or GND  
CC  
IN  
*All outputs loaded; thresholds on input associated with output under test.  
†Maximum test duration 2.0 ms, one output loaded at a time.  
http://onsemi.com  
6
MC74AC299, MC74ACT299  
AC CHARACTERISTICS (For Figures and Waveforms – See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)  
74ACT  
74ACT  
T
= –40°C  
A
T
C
= +25°C  
= 50 pF  
V
(V)  
*
Fig.  
No.  
A
L
CC  
to +85°C  
C
Symbol  
Parameter  
Unit  
= 50 pF  
L
Min  
Typ  
Max  
Min  
Max  
Maximum Input  
Frequency  
f
t
t
t
t
t
t
t
t
t
t
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
120  
110  
MHz  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
3–3  
3–6  
3–6  
3–6  
3–6  
3–6  
3–6  
3–7  
3–8  
3–7  
3–8  
max  
Propagation Delay  
4.0  
4.0  
4.5  
5.0  
4.0  
4.0  
2.5  
2.0  
2.0  
2.5  
12.5  
13.5  
12.5  
15  
3.0  
3.5  
4.5  
4.5  
4.0  
3.5  
1.5  
1.5  
2.0  
2.0  
14  
PLH  
PHL  
PLH  
PHL  
PHL  
PHL  
PZH  
PZL  
PHZ  
PLZ  
CP to Q  
0 or  
Q
7
Propagation Delay  
CP to Q  
15  
Q
0 or  
Propagation Delay  
CP to I/O  
7
13.5  
16.5  
18  
n
Propagation Delay  
CP to I/O  
n
Propagation Delay  
MR to Q  
15  
Q
0 or  
Propagation Delay  
MR to I/O  
7
14.5  
12  
17.5  
13  
n
Output Enable Time  
OE to I/O  
n
Output Enable Time  
OE to I/O  
12  
13.5  
13.5  
12.5  
n
Output Disable Time  
OE to I/O  
12.5  
11.5  
n
Output Disable Time  
OE to I/O  
n
*Voltage Range 5.0 V is 5.0 V ±0.5 V.  
http://onsemi.com  
7
MC74AC299, MC74ACT299  
AC OPERATING REQUIREMENTS  
74ACT  
74ACT  
= –40°C  
T
A
T
C
= +25°C  
= 50 pF  
V
(V)  
*
Fig.  
No.  
A
CC  
to +85°C  
= 50 pF  
Symbol  
Parameter  
Unit  
L
C
L
Typ  
Guaranteed Minimum  
Setup Time, HIGH or LOW  
or S to CP  
t
t
t
t
t
t
t
t
t
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
5.0  
1.0  
4.0  
1.0  
4.5  
1.0  
4.0  
3.5  
1.5  
5.5  
1.0  
4.5  
1.0  
5.0  
1.0  
4.5  
3.5  
1.5  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
ns  
3–9  
3–9  
3–9  
3–9  
3–6  
3–6  
3–9  
3–9  
3–9  
s
h
s
h
s
h
S
0
1
Hold Time, HIGH or LOW  
or S to CP  
S
0
1
Setup Time, HIGH or LOW  
I/O to CP  
n
Hold Time, HIGH or LOW  
I/O to CP  
n
Setup Time, HIGH or LOW  
DS or DS to CP  
0
7
Hold Time, HIGH or LOW  
DS or DS to CP  
0
7
CP Pulse Width  
HIGH or LOW  
w
MR Pulse Width, LOW  
w
Recovery Time  
MR to CP  
rec  
*Voltage Range 5.0 V is 5.0 V ±0.5 V.  
CAPACITANCE  
Symbol  
Value  
Typ  
Parameter  
Unit  
Test Conditions  
C
C
Input Capacitance  
Power Dissipation Capacitance  
4.5  
pF  
pF  
V
V
= 5.0 V  
= 5.0 V  
IN  
CC  
170  
PD  
CC  
http://onsemi.com  
8
MC74AC299, MC74ACT299  
MARKING DIAGRAMS  
SO–20  
PDIP–20  
TSSOP–20  
AC299  
AWLYYWW  
MC74AC299N  
AWLYYWW  
AC  
299  
ALYW  
ACT299  
AWLYYWW  
MC74ACT299N  
AWLYYWW  
ACT  
299  
ALYW  
A
= Assembly Location  
WL, L = Wafer Lot  
YY, Y = Year  
WW, W = Work Week  
http://onsemi.com  
9
MC74AC299, MC74ACT299  
PACKAGE DIMENSIONS  
PDIP–20  
N SUFFIX  
20 PIN PLASTIC DIP PACKAGE  
CASE 738–03  
ISSUE E  
–A–  
NOTES:  
1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
2. CONTROLLING DIMENSION: INCH.  
3. DIMENSION L TO CENTER OF LEAD WHEN  
FORMED PARALLEL.  
20  
1
11  
10  
B
4. DIMENSION B DOES NOT INCLUDE MOLD  
FLASH.  
L
C
INCHES  
DIM MIN MAX  
1.070 25.66  
MILLIMETERS  
MIN  
MAX  
27.17  
6.60  
4.57  
0.55  
A
B
C
D
E
F
1.010  
0.240  
0.150  
0.015  
0.260  
0.180  
0.022  
6.10  
3.81  
0.39  
–T–  
SEATING  
PLANE  
K
0.050 BSC  
1.27 BSC  
M
0.050  
0.070  
1.27  
1.77  
N
E
G
J
0.100 BSC  
2.54 BSC  
0.008  
0.110  
0.015  
0.140  
0.21  
2.80  
0.38  
3.55  
G
F
K
L
J 20 PL  
0.300 BSC  
7.62 BSC  
D 20 PL  
M
M
T B  
0.25 (0.010)  
M
N
0
0.020  
15  
0.040  
0
_
0.51  
15  
1.01  
_
_
_
M
M
0.25 (0.010)  
T A  
SO–20  
DW SUFFIX  
20 PIN PLASTIC SOIC PACKAGE  
CASE 751D–05  
ISSUE F  
D
A
q
NOTES:  
1. DIMENSIONS ARE IN MILLIMETERS.  
2. INTERPRET DIMENSIONS AND TOLERANCES  
PER ASME Y14.5M, 1994.  
20  
11  
3. DIMENSIONS D AND E DO NOT INCLUDE MOLD  
PROTRUSION.  
E
4. MAXIMUM MOLD PROTRUSION 0.15 PER SIDE.  
5. DIMENSION B DOES NOT INCLUDE DAMBAR  
PROTRUSION. ALLOWABLE PROTRUSION SHALL  
BE 0.13 TOTAL IN EXCESS OF B DIMENSION AT  
MAXIMUM MATERIAL CONDITION.  
1
10  
MILLIMETERS  
DIM MIN  
MAX  
2.65  
0.25  
0.49  
0.32  
12.95  
7.60  
B
A
A1  
B
C
D
E
2.35  
0.10  
0.35  
0.23  
12.65  
7.40  
20X B  
M
S
S
B
T
0.25  
A
e
1.27 BSC  
A
H
h
10.05  
0.25  
0.50  
0
10.55  
0.75  
0.90  
7
L
SEATING  
PLANE  
q
_
_
18X e  
A1  
C
T
http://onsemi.com  
10  
MC74AC299, MC74ACT299  
PACKAGE DIMENSIONS  
TSSOP–20  
DT SUFFIX  
20 PIN PLASTIC TSSOP PACKAGE  
CASE 948E–02  
ISSUE A  
20X K REF  
NOTES:  
ąă1. DIMENSIONING AND TOLERANCING PER ANSI  
Y14.5M, 1982.  
M
S
S
V
0.10 (0.004)  
T U  
S
0.15 (0.006) T U  
ąă2. CONTROLLING DIMENSION: MILLIMETER.  
ąă3. DIMENSION A DOES NOT INCLUDE MOLD  
FLASH, PROTRUSIONS OR GATE BURRS. MOLD  
FLASH OR GATE BURRS SHALL NOT EXCEED  
0.15 (0.006) PER SIDE.  
ąă4. DIMENSION B DOES NOT INCLUDE  
INTERLEAD FLASH OR PROTRUSION.  
INTERLEAD FLASH OR PROTRUSION SHALL NOT  
EXCEED 0.25 (0.010) PER SIDE.  
ąă5. DIMENSION K DOES NOT INCLUDE DAMBAR  
PROTRUSION. ALLOWABLE DAMBAR  
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN  
EXCESS OF THE K DIMENSION AT MAXIMUM  
MATERIAL CONDITION.  
K
K1  
20  
11  
2X L/2  
J J1  
B
L
–U–  
PIN 1  
IDENT  
SECTION N–N  
1
10  
0.25 (0.010)  
ąă6. TERMINAL NUMBERS ARE SHOWN FOR  
REFERENCE ONLY.  
N
S
ąă7. DIMENSION A AND B ARE TO BE  
DETERMINED AT DATUM PLANE -W-.  
0.15 (0.006) T U  
M
A
–V–  
MILLIMETERS  
DIM MIN MAX  
INCHES  
MIN  
MAX  
0.260  
0.177  
0.047  
0.006  
0.030  
A
B
6.40  
4.30  
---  
6.60 0.252  
4.50 0.169  
N
C
1.20  
---  
D
0.05  
0.50  
0.15 0.002  
0.75 0.020  
F
F
G
H
0.65 BSC  
0.026 BSC  
DETAIL E  
0.27  
0.09  
0.09  
0.19  
0.19  
0.37  
0.011  
0.015  
0.008  
0.006  
0.012  
0.010  
J
0.20 0.004  
0.16 0.004  
0.30 0.007  
0.25 0.007  
–W–  
J1  
K
C
K1  
L
6.40 BSC  
0.252 BSC  
0
G
D
M
0
8
8
_
_
_
_
H
DETAIL E  
0.100 (0.004)  
–T– SEATING  
PLANE  
http://onsemi.com  
11  
MC74AC299, MC74ACT299  
ON Semiconductor and  
are trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes  
without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular  
purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability,  
including without limitation special, consequential or incidental damages. “Typical” parameters which may be provided in SCILLC data sheets and/or  
specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including “Typicals” must be  
validated for each customer application by customer’s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others.  
SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications  
intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or  
death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold  
SCILLC and its officers, employees, subsidiaries, affiliates, and distributors harmless against all claims, costs, damages, and expenses, and reasonable  
attorney fees arising out of, directly or indirectly, any claim of personal injury or death associated with such unintended or unauthorized use, even if such claim  
alleges that SCILLC was negligent regarding the design or manufacture of the part. SCILLC is an Equal Opportunity/Affirmative Action Employer.  
PUBLICATION ORDERING INFORMATION  
Literature Fulfillment:  
JAPAN: ON Semiconductor, Japan Customer Focus Center  
4–32–1 Nishi–Gotanda, Shinagawa–ku, Tokyo, Japan 141–0031  
Phone: 81–3–5740–2700  
Literature Distribution Center for ON Semiconductor  
P.O. Box 5163, Denver, Colorado 80217 USA  
Phone: 303–675–2175 or 800–344–3860 Toll Free USA/Canada  
Fax: 303–675–2176 or 800–344–3867 Toll Free USA/Canada  
Email: ONlit@hibbertco.com  
Email: r14525@onsemi.com  
ON Semiconductor Website: http://onsemi.com  
For additional information, please contact your local  
Sales Representative.  
N. American Technical Support: 800–282–9855 Toll Free USA/Canada  
MC74AC299/D  

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