74AHCT273PW,118 [NXP]

74AHC(T)273 - Octal D-type flip-flop with reset; positive-edge trigger TSSOP2 20-Pin;
74AHCT273PW,118
型号: 74AHCT273PW,118
厂家: NXP    NXP
描述:

74AHC(T)273 - Octal D-type flip-flop with reset; positive-edge trigger TSSOP2 20-Pin

光电二极管 逻辑集成电路 触发器
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中文:  中文翻译
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74AHC273; 74AHCT273  
Octal D-type flip-flop with reset; positive-edge trigger  
Rev. 03 — 13 May 2008  
Product data sheet  
1. General description  
The 74AHC273; 74AHCT273 is a high-speed Si-gate CMOS device and is pin compatible  
with Low-power Schottky TTL (LSTTL). It is specified in compliance with JEDEC standard  
No. 7-A.  
The 74AHC273; 74AHCT273 has eight edge-triggered, D-type flip-flops with individual D  
inputs and Q outputs.  
The common clock (CP) and master reset (MR) inputs, load and reset (clear) all flip-flops  
simultaneously.  
The state of each D input, one set-up time before the LOW-to-HIGH clock transition, is  
transferred to the corresponding output (Qn) of the flip-flop.  
All outputs will be forced LOW, independent of clock or data inputs, by a LOW on the MR  
input.  
The device is useful for applications where only the true output is required and the clock  
and master reset are common to all storage elements.  
2. Features  
I Balanced propagation delays  
I All inputs have Schmitt-trigger actions  
I Inputs accept voltages higher than VCC  
I Ideal buffer for MOS microcontroller or memory  
I Common clock and master reset  
I Related product versions:  
N 74AHC377; 74AHCT377 for clock enable version  
N 74AHC373; 74AHCT373 for transparent latch version  
N 74AHC374; 74AHCT374 for 3-state version  
I Input levels:  
N For 74AHC273: CMOS level  
N For 74AHCT273: TTL level  
I ESD protection:  
N HBM EIA/JESD22-A114E exceeds 2000 V  
N MM EIA/JESD22-A115-A exceeds 200 V  
N CDM EIA/JESD22-C101C exceeds 1000 V  
I Multiple package options  
I Specified from 40 °C to +85 °C and from 40 °C to +125 °C  
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
3. Ordering information  
Table 1.  
Ordering information  
Type number  
Package  
Temperature range Name  
Description  
Version  
74AHC273  
74AHC273D  
40 °C to +125 °C  
40 °C to +125 °C  
40 °C to +125 °C  
SO20  
plastic small outline package; 20 leads;  
body width 7.5 mm  
SOT163-1  
SOT360-1  
74AHC273PW  
74AHC273BQ  
TSSOP20  
plastic thin shrink small outline package; 20 leads;  
body width 4.4 mm  
DHVQFN20 plastic dual in-line compatible thermal enhanced very SOT764-1  
thin quad flat package; no leads; 20 terminals; body  
2.5 × 4.5 × 0.85 mm  
74AHCT273  
74AHCT273D  
40 °C to +125 °C  
SO20  
plastic small outline package; 20 leads;  
body width 7.5 mm  
SOT163-1  
SOT360-1  
74AHCT273PW 40 °C to +125 °C  
74AHCT273BQ 40 °C to +125 °C  
TSSOP20  
plastic thin shrink small outline package; 20 leads;  
body width 4.4 mm  
DHVQFN20 plastic dual in-line compatible thermal enhanced very SOT764-1  
thin quad flat package; no leads; 20 terminals; body  
2.5 × 4.5 × 0.85 mm  
4. Functional diagram  
11  
CP  
C1  
1
R
MR  
11  
3
2
1D  
D0  
Q0  
CP  
3
2
5
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
Q0  
Q1  
Q2  
Q3  
Q4  
Q5  
Q6  
Q7  
4
7
8
5
6
9
D1  
D2  
D3  
D4  
D5  
D6  
D7  
Q1  
Q2  
Q3  
Q4  
Q5  
Q6  
Q7  
4
7
6
8
9
13  
14  
17  
18  
12  
15  
16  
19  
13  
14  
17  
18  
12  
15  
16  
19  
MR  
1
mna764  
mna763  
Fig 1. Logic symbol  
Fig 2. IEC logic symbol  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
2 of 18  
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
D0  
D1  
D2  
D3  
D
Q
D
Q
D
Q
D
Q
CP  
CP  
CP  
CP  
FF1  
FF2  
FF3  
FF4  
R
R
R
R
D
D
D
D
CP  
MR  
Q0  
Q1  
Q2  
Q3  
D4  
D5  
D6  
D7  
D
Q
D
Q
D
Q
D
Q
CP  
FF5  
CP  
FF6  
CP  
FF7  
CP  
FF8  
R
R
R
R
D
D
D
D
Q4  
Q5  
Q6  
Q7  
001aae056  
Fig 3. Logic diagram  
D0  
Q0  
Q1  
Q2  
Q3  
Q4  
Q5  
Q6  
Q7  
3
4
2
D1  
D2  
D3  
D4  
D5  
D6  
D7  
5
6
9
7
FF1  
TO  
FF8  
8
13  
14  
17  
18  
12  
15  
16  
19  
MR  
CP  
1
11  
001aae055  
Fig 4. Functional diagram  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
3 of 18  
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
5. Pinning information  
5.1 Pinning  
74AHC273  
74AHCT273  
terminal 1  
index area  
74AHC273  
74AHCT273  
2
3
4
5
6
7
8
9
19  
18  
17  
16  
15  
14  
13  
12  
Q0  
D0  
D1  
Q1  
Q2  
D2  
D3  
Q3  
Q7  
D7  
D6  
Q6  
Q5  
D5  
D4  
Q4  
1
2
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
MR  
Q0  
V
CC  
Q7  
D7  
D6  
Q6  
Q5  
D5  
D4  
Q4  
CP  
3
D0  
4
D1  
5
Q1  
(1)  
6
Q2  
GND  
7
D2  
8
D3  
9
Q3  
001aai067  
10  
GND  
001aai066  
Transparent top view  
(1) The die substrate is attached to this pad using  
conductive die attach material. It can not be used as a  
supply pin or input.  
Fig 5. Pin configuration SO20 and TSSOP20  
Fig 6. Pin configuration DHVQFN20  
5.2 Pin description  
Table 2.  
Symbol  
MR  
Q0  
Pin description  
Pin  
1
Description  
master reset input (active LOW)  
flip-flop output  
data input  
2
D0  
3
D1  
4
data input  
Q1  
5
flip-flop output  
flip-flop output  
data input  
Q2  
6
D2  
7
D3  
8
data input  
Q3  
9
flip-flop output  
ground (0 V)  
GND  
CP  
10  
11  
12  
13  
14  
15  
16  
clock input (LOW-to-HIGH edge-triggered)  
flip-flop output  
data input  
Q4  
D4  
D5  
data input  
Q5  
flip-flop output  
flip-flop output  
Q6  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
4 of 18  
 
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
Table 2.  
Symbol  
D6  
Pin description …continued  
Pin  
17  
18  
19  
20  
Description  
data input  
D7  
data input  
Q7  
flip-flop output  
supply voltage  
VCC  
6. Functional description  
Table 3.  
Function table[1]  
Operating mode  
Control  
Input  
Output  
MR  
L
CP  
X
Dn  
X
h
Qn  
L
Reset (clear)  
Load ‘1’  
H
H
Load ‘0’  
H
l
L
[1] H = HIGH voltage level;  
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition;  
L = LOW voltage level;  
l = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition;  
= LOW-to-HIGH;  
X = don’t care.  
7. Limiting values  
Table 4.  
Limiting values  
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).  
Symbol  
VCC  
VI  
Parameter  
Conditions  
Min  
0.5  
0.5  
20  
20  
25  
-
Max  
+7.0  
+7.0  
-
Unit  
V
supply voltage  
input voltage  
V
[1]  
[1]  
IIK  
input clamping current  
output clamping current  
output current  
VI < 0.5 V  
mA  
mA  
mA  
mA  
mA  
°C  
IOK  
VO < 0.5 V or VO > VCC + 0.5 V  
VO = 0.5 V to (VCC + 0.5 V)  
+20  
+25  
+75  
-
IO  
ICC  
supply current  
IGND  
Tstg  
Ptot  
ground current  
75  
65  
-
storage temperature  
total power dissipation  
+150  
500  
[2]  
Tamb = 40 °C to +125 °C  
mW  
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.  
[2] For SO20 packages: above 70 °C the value of Ptot derates linearly at 8 mW/K.  
For TSSOP20 packages: above 60 °C the value of Ptot derates linearly at 5.5 mW/K.  
For DHVQFN20 packages: above 60 °C the value of Ptot derates linearly at 4.5 mW/K.  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
5 of 18  
 
 
 
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
8. Recommended operating conditions  
Table 5.  
Symbol  
74AHC273  
VCC  
Operating conditions  
Parameter  
Conditions  
Min  
Typ  
Max  
Unit  
supply voltage  
2.0  
5.0  
5.5  
V
VI  
input voltage  
0
-
5.5  
V
VO  
output voltage  
0
-
VCC  
+125  
100  
20  
V
Tamb  
ambient temperature  
input transition rise and fall rate  
40  
+25  
°C  
ns/V  
ns/V  
t/V  
VCC = 3.0 V to 3.6 V  
VCC = 4.5 V to 5.5 V  
-
-
-
-
74AHCT273  
VCC  
VI  
supply voltage  
4.5  
0
5.0  
5.5  
V
input voltage  
-
5.5  
V
VO  
output voltage  
0
-
VCC  
+125  
20  
V
Tamb  
t/V  
ambient temperature  
input transition rise and fall rate  
40  
-
+25  
-
°C  
ns/V  
VCC = 4.5 V to 5.5 V  
9. Static characteristics  
Table 6.  
Static characteristics  
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).  
Symbol Parameter  
Conditions  
25 °C  
40 °C to +85 °C 40 °C to +125 °C Unit  
Min Typ Max  
Min  
Max  
Min  
Max  
74AHC273  
VIH  
HIGH-level  
input voltage  
VCC = 2.0 V  
1.5  
-
-
-
-
-
-
-
-
1.5  
-
-
1.5  
-
-
V
V
V
V
V
V
VCC = 3.0 V  
2.1  
2.1  
2.1  
VCC = 5.5 V  
3.85  
-
3.85  
-
3.85  
-
VIL  
LOW-level  
input voltage  
VCC = 2.0 V  
-
-
-
0.5  
0.9  
1.65  
-
-
-
0.5  
0.9  
1.65  
-
-
-
0.5  
0.9  
1.65  
VCC = 3.0 V  
VCC = 5.5 V  
VOH  
HIGH-level  
VI = VIH or VIL  
output voltage  
IO = 50 µA; VCC = 2.0 V  
IO = 50 µA; VCC = 3.0 V  
IO = 50 µA; VCC = 4.5 V  
IO = 4.0 mA; VCC = 3.0 V  
IO = 8.0 mA; VCC = 4.5 V  
VI = VIH or VIL  
1.9  
2.9  
2.0  
3.0  
4.5  
-
-
-
-
-
-
1.9  
2.9  
-
-
-
-
-
1.9  
2.9  
-
-
-
-
-
V
V
V
V
V
4.4  
4.4  
4.4  
2.58  
3.94  
2.48  
3.80  
2.40  
3.70  
-
VOL  
LOW-level  
output voltage  
IO = 50 µA; VCC = 2.0 V  
IO = 50 µA; VCC = 3.0 V  
IO = 50 µA; VCC = 4.5 V  
IO = 4.0 mA; VCC = 3.0 V  
IO = 8.0 mA; VCC = 4.5 V  
-
-
-
-
-
0
0
0
-
0.1  
0.1  
-
-
-
-
-
0.1  
0.1  
-
-
-
-
-
0.1  
0.1  
V
V
V
V
V
0.1  
0.1  
0.1  
0.36  
0.36  
0.44  
0.44  
0.55  
0.55  
-
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
6 of 18  
 
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
Table 6.  
Static characteristics …continued  
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).  
Symbol Parameter  
Conditions  
25 °C  
40 °C to +85 °C 40 °C to +125 °C Unit  
Min Typ Max  
Min  
Max  
Min  
Max  
II  
input leakage VI = 5.5 V or GND;  
current CC = 0 V to 5.5 V  
-
-
-
-
-
0.1  
4.0  
10  
-
-
1.0  
-
2.0  
µA  
µA  
pF  
pF  
V
ICC  
CI  
CO  
supply current VI = VCC or GND; IO = 0 A;  
CC = 5.5 V  
-
-
-
-
40  
10  
-
-
-
-
80  
10  
-
V
input  
capacitance  
3
4
output  
capacitance  
74AHCT273  
VIH  
HIGH-level  
input voltage  
VCC = 4.5 V to 5.5 V  
VCC = 4.5 V to 5.5 V  
2.0  
-
-
-
-
2.0  
-
-
2.0  
-
-
V
V
VIL  
LOW-level  
0.8  
0.8  
0.8  
input voltage  
VOH  
HIGH-level  
output voltage  
VI = VIH or VIL; VCC = 4.5 V  
IO = 50 µA  
4.4  
-
-
-
-
4.4  
-
-
4.4  
-
-
V
V
IO = 8.0 mA  
3.94  
3.80  
3.70  
VOL  
LOW-level  
output voltage  
VI = VIH or VIL; VCC = 4.5 V  
IO = 50 µA  
-
-
-
0
-
0.1  
0.36  
0.1  
-
-
-
0.1  
0.44  
1.0  
-
-
-
0.1  
0.55  
2.0  
V
IO = 8.0 mA  
V
II  
input leakage VI = 5.5 V or GND;  
current CC = 0 V to 5.5 V  
-
µA  
V
ICC  
ICC  
supply current VI = VCC or GND; IO = 0 A;  
CC = 5.5 V  
-
-
-
-
4.0  
-
-
40  
-
-
80  
µA  
V
additional  
per input pin;  
1.35  
1.5  
1.5  
mA  
supply current VI = VCC 2.1 V; other pins  
at VCC or GND; IO = 0 A;  
V
CC = 4.5 V to 5.5 V  
CI  
input  
capacitance  
-
-
3
4
10  
-
-
-
10  
-
-
-
10  
-
pF  
pF  
CO  
output  
capacitance  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
7 of 18  
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
10. Dynamic characteristics  
Table 7.  
Dynamic characteristics  
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 10.  
Symbol Parameter Conditions  
74AHC273  
25 °C  
40 °C to +85 °C 40 °C to +125 °C Unit  
Min Typ[1] Max Min  
Max  
Min  
Max  
[2]  
tpd  
propagation CP to Qn; see Figure 7  
delay  
VCC = 3.0 V to 3.6 V  
CL = 15 pF  
-
-
6.0 13.6  
8.6 17.1  
1.0  
1.0  
16.0  
19.5  
1.0  
1.0  
17.0  
21.5  
ns  
ns  
CL = 50 pF  
VCC = 4.5 V to 5.5 V  
CL = 15 pF  
-
-
4.2  
9
1.0  
1.0  
10.5  
12.5  
1.0  
1.0  
11.5  
14.0  
ns  
ns  
CL = 50 pF  
6.0 11.0  
[3]  
MR to Qn; see Figure 8  
VCC = 3.0 V to 3.6 V  
CL = 15 pF  
-
-
5.1 13.6  
7.3 17.1  
1.0  
1.0  
16.0  
19.5  
1.0  
1.0  
17.0  
21.5  
ns  
ns  
CL = 50 pF  
VCC = 4.5 V to 5.5 V  
CL = 15 pF  
-
-
3.7  
8.5  
1.0  
1.0  
10.0  
12.0  
1.0  
1.0  
11.0  
13.5  
ns  
ns  
CL = 50 pF  
5.3 10.5  
fmax  
maximum  
frequency  
see Figure 7  
VCC = 3.0 V to 3.6 V  
CL = 15 pF  
75  
50  
120  
75  
-
-
65  
45  
-
-
65  
45  
-
-
MHz  
MHz  
CL = 50 pF  
VCC = 4.5 V to 5.5 V  
CL = 15 pF  
120 165  
-
-
100  
70  
-
-
100  
70  
-
-
MHz  
MHz  
CL = 50 pF  
80  
110  
tW  
pulse width CP HIGH or LOW;  
see Figure 7  
VCC = 3.0 V to 3.6 V  
VCC = 4.5 V to 5.5 V  
5.0  
5.0  
-
-
-
-
6.5  
5.0  
-
-
6.5  
5.0  
-
-
ns  
ns  
MR LOW; see Figure 8  
VCC = 3.0 V to 3.6 V  
5.0  
5.0  
-
-
-
-
6.0  
5.0  
-
-
6.0  
5.0  
-
-
ns  
ns  
VCC = 4.5 V to 5.5 V  
tsu  
set-up time Dn to CP; see Figure 9  
VCC = 3.0 V to 3.6 V  
3.0  
3.0  
-
-
-
-
3.0  
3.0  
-
-
3.0  
3.0  
-
-
ns  
ns  
VCC = 4.5 V to 5.5 V  
th  
hold time  
Dn to CP; see Figure 9  
VCC = 3.0 V to 3.6 V  
VCC = 4.5 V to 5.5 V  
1.0  
1.0  
-
-
-
-
1.0  
1.0  
-
-
1.0  
1.0  
-
-
ns  
ns  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
8 of 18  
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
Table 7.  
Dynamic characteristics …continued  
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 10.  
Symbol Parameter Conditions 25 °C  
40 °C to +85 °C 40 °C to +125 °C Unit  
Min Typ[1] Max Min  
Max  
Min  
Max  
trec  
recovery  
time  
MR to CP; see Figure 8  
VCC = 3.0 V to 3.6 V  
2.5  
2.0  
-
-
-
-
-
-
2.5  
2.0  
-
-
-
-
2.5  
2.0  
-
-
-
-
ns  
ns  
pF  
VCC = 4.5 V to 5.5 V  
[4]  
CPD  
power  
fi = 1 MHz; VI = GND to VCC  
14  
dissipation  
capacitance  
74AHCT273; VCC = 4.5 V to 5.5 V  
[2]  
[3]  
tpd  
propagation CP to Qn; see Figure 7  
delay  
CL = 15 pF  
CL = 50 pF  
-
-
4.0  
5.8  
7.5  
9.2  
1.0  
1.0  
8.8  
1.0  
1.0  
9.5  
ns  
ns  
10.5  
11.5  
MR to Qn; see Figure 8  
CL = 15 pF  
-
-
3.9 10.0  
5.6 11.0  
1.0  
1.0  
11.6  
12.6  
1.0  
1.0  
12.5  
14.0  
ns  
ns  
CL = 50 pF  
fmax  
maximum  
frequency  
see Figure 7  
CL = 15 pF  
75  
50  
120  
75  
-
-
-
-
65  
45  
-
-
-
65  
45  
-
-
-
MHz  
MHz  
ns  
CL = 50 pF  
tW  
pulse width CP HIGH or LOW;  
see Figure 7  
5.0  
6.5  
6.5  
MR LOW; see Figure 8  
5.0  
3.0  
1.0  
2.5  
-
-
-
-
-
-
-
-
6.0  
3.0  
1.0  
2.5  
-
-
-
-
6.0  
3.0  
1.0  
2.5  
-
-
-
-
ns  
ns  
ns  
ns  
tsu  
th  
set-up time Dn to CP; see Figure 9  
hold time  
Dn to CP; see Figure 9  
MR to CP; see Figure 8  
trec  
recovery  
time  
[4]  
CPD  
power  
fi = 1 MHz; VI = GND to VCC  
-
18  
-
-
-
-
-
pF  
dissipation  
capacitance  
[1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).  
[2] tpd is the same as tPLH and tPHL  
.
[3] tpd is the same as tPHL only.  
[4] CPD is used to determine the dynamic power dissipation (PD in µW).  
PD = CPD × VCC2 × fi × N + Σ(CL × VCC2 × fo) where:  
fi = input frequency in MHz;  
fo = output frequency in MHz;  
CL = output load capacitance in pF;  
VCC = supply voltage in V;  
N = number of inputs switching;  
Σ(CL × VCC2 × fo) = sum of the outputs.  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
9 of 18  
 
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
11. Waveforms  
1/f  
max  
V
I
CP input  
V
t
M
GND  
t
W
t
PHL  
PLH  
V
OH  
V
Qn output  
M
001aac426  
V
OL  
Measurement points are given in Table 8.  
VOL and VOH are typical voltage output levels that occur with the output load.  
Fig 7. Clock pulse width, maximum frequency and input to output propagation delays  
V
I
V
MR input  
M
GND  
t
t
rec  
W
V
I
CP input  
V
M
GND  
t
PHL  
V
OH  
V
Qn output  
M
V
OL  
mna464  
Measurement points are given in Table 8.  
VOL and VOH are typical voltage output levels that occur with the output load.  
Fig 8. Master reset pulse width, recovery time and propagation delay  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
10 of 18  
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
V
I
V
CP input  
M
GND  
t
t
su  
su  
t
t
h
h
V
I
V
M
Dn input  
GND  
V
OH  
V
Qn output  
M
V
OL  
mna202  
Measurement points are given in Table 8.  
The shaded areas indicate when the input is permitted to change for predictable output performance.  
VOL and VOH are typical voltage output levels that occur with the output load.  
Fig 9. Data set-up and hold times  
Table 8.  
Type  
Measurement points  
Input  
VM  
Output  
VM  
74AHC273  
0.5 × VCC  
1.5 V  
0.5 × VCC  
0.5 × VCC  
74AHCT273  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
11 of 18  
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
t
W
V
I
90 %  
negative  
pulse  
V
V
V
V
M
M
10 %  
GND  
t
t
r
f
t
t
f
r
V
I
90 %  
positive  
pulse  
M
M
10 %  
GND  
t
W
V
CC  
V
V
O
I
G
DUT  
R
T
C
L
001aah768  
Test data is given in Table 9.  
Definitions test circuit:  
RT = termination resistance should be equal to output impedance Zo of the pulse generator.  
CL = load capacitance including jig and probe capacitance.  
Fig 10. Load circuitry for measuring switching times  
Table 9.  
Type  
Test data  
Input  
VI  
Load  
Test  
tr, tf  
CL  
74AHC273  
VCC  
3.0 V  
3.0 ns  
3.0 ns  
15 pF, 50 pF  
15 pF, 50 pF  
tPLH, tPHL  
tPLH, tPHL  
74AHCT273  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
12 of 18  
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
12. Package outline  
SO20: plastic small outline package; 20 leads; body width 7.5 mm  
SOT163-1  
D
E
A
X
c
y
H
E
v
M
A
Z
20  
11  
Q
A
2
A
(A )  
3
A
1
pin 1 index  
θ
L
p
L
1
10  
w
detail X  
e
M
b
p
0
5
10 mm  
scale  
DIMENSIONS (inch dimensions are derived from the original mm dimensions)  
A
max.  
(1)  
(1)  
(1)  
UNIT  
mm  
A
A
A
b
c
D
E
e
H
L
L
Q
v
w
y
θ
1
2
3
p
E
p
Z
0.3  
0.1  
2.45  
2.25  
0.49  
0.36  
0.32  
0.23  
13.0  
12.6  
7.6  
7.4  
10.65  
10.00  
1.1  
0.4  
1.1  
1.0  
0.9  
0.4  
2.65  
0.1  
0.25  
0.01  
1.27  
0.05  
1.4  
0.25  
0.01  
0.25  
0.1  
8o  
0o  
0.012 0.096  
0.004 0.089  
0.019 0.013 0.51  
0.014 0.009 0.49  
0.30  
0.29  
0.419  
0.394  
0.043 0.043  
0.016 0.039  
0.035  
0.016  
inches  
0.055  
0.01 0.004  
Note  
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.  
REFERENCES  
OUTLINE  
EUROPEAN  
PROJECTION  
ISSUE DATE  
VERSION  
IEC  
JEDEC  
JEITA  
99-12-27  
03-02-19  
SOT163-1  
075E04  
MS-013  
Fig 11. Package outline SOT163-1 (SO20)  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
13 of 18  
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
TSSOP20: plastic thin shrink small outline package; 20 leads; body width 4.4 mm  
SOT360-1  
D
E
A
X
c
H
v
M
A
y
E
Z
11  
20  
Q
A
2
(A )  
3
A
A
1
pin 1 index  
θ
L
p
L
1
10  
detail X  
w
M
b
p
e
0
2.5  
5 mm  
scale  
DIMENSIONS (mm are the original dimensions)  
A
(1)  
(2)  
(1)  
UNIT  
A
A
A
b
c
D
E
e
H
L
L
Q
v
w
y
Z
θ
1
2
3
p
E
p
max.  
8o  
0o  
0.15  
0.05  
0.95  
0.80  
0.30  
0.19  
0.2  
0.1  
6.6  
6.4  
4.5  
4.3  
6.6  
6.2  
0.75  
0.50  
0.4  
0.3  
0.5  
0.2  
mm  
1.1  
0.65  
0.25  
1
0.2  
0.13  
0.1  
Notes  
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.  
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.  
REFERENCES  
OUTLINE  
EUROPEAN  
PROJECTION  
ISSUE DATE  
VERSION  
IEC  
JEDEC  
JEITA  
99-12-27  
03-02-19  
SOT360-1  
MO-153  
Fig 12. Package outline SOT360-1 (TSSOP20)  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
14 of 18  
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
DHVQFN20: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads;  
20 terminals; body 2.5 x 4.5 x 0.85 mm  
SOT764-1  
B
A
D
A
A
1
E
c
detail X  
terminal 1  
index area  
C
terminal 1  
index area  
e
1
y
y
e
b
v
M
C
C
A
B
C
1
w
M
2
9
L
1
10  
E
h
e
20  
11  
19  
12  
D
h
X
0
2.5  
5 mm  
scale  
DIMENSIONS (mm are the original dimensions)  
(1)  
A
(1)  
(1)  
UNIT  
A
b
c
E
e
e
1
y
D
D
E
L
v
w
y
1
1
h
h
max.  
0.05 0.30  
0.00 0.18  
4.6  
4.4  
3.15  
2.85  
2.6  
2.4  
1.15  
0.85  
0.5  
0.3  
mm  
0.05  
0.1  
1
0.2  
0.5  
3.5  
0.1  
0.05  
Note  
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.  
REFERENCES  
OUTLINE  
EUROPEAN  
PROJECTION  
ISSUE DATE  
VERSION  
IEC  
JEDEC  
JEITA  
02-10-17  
03-01-27  
SOT764-1  
- - -  
MO-241  
- - -  
Fig 13. Package outline SOT764-1 (DHVQFN20)  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
15 of 18  
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
13. Abbreviations  
Table 10. Abbreviations  
Acronym  
CDM  
Description  
Charged Device Model  
CMOS  
DUT  
Complementary Metal-Oxide Semiconductor  
Device Under Test  
ESD  
ElectroStatic Discharge  
HBM  
Human Body Model  
LSTTL  
MM  
Low-power Schottky Transistor-Transistor Logic  
Machine Model  
MOS  
Metal-Oxide Semiconductor  
14. Revision history  
Table 11. Revision history  
Document ID  
Release date  
20080513  
Data sheet status  
Change notice  
Supersedes  
74AHC_AHCT273_3  
Modifications:  
Product data sheet  
-
74AHC_AHCT273_2  
The format of this data sheet has been redesigned to comply with the new identity  
guidelines of NXP Semiconductors.  
Legal texts have been adapted to the new company name where appropriate.  
Table 6: the conditions for input leakage current have been changed.  
74AHC_AHCT273_2  
74AHC_AHCT273_1  
20030721  
Product specification  
-
74AHC_AHCT273_1  
19990901  
Product specification  
-
-
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
16 of 18  
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
15. Legal information  
15.1 Data sheet status  
Document status[1][2]  
Product status[3]  
Development  
Definition  
Objective [short] data sheet  
This document contains data from the objective specification for product development.  
This document contains data from the preliminary specification.  
This document contains the product specification.  
Preliminary [short] data sheet Qualification  
Product [short] data sheet Production  
[1]  
[2]  
[3]  
Please consult the most recently issued document before initiating or completing a design.  
The term ‘short data sheet’ is explained in section “Definitions”.  
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status  
information is available on the Internet at URL http://www.nxp.com.  
malfunction of an NXP Semiconductors product can reasonably be expected  
15.2 Definitions  
to result in personal injury, death or severe property or environmental  
damage. NXP Semiconductors accepts no liability for inclusion and/or use of  
NXP Semiconductors products in such equipment or applications and  
therefore such inclusion and/or use is at the customer’s own risk.  
Draft — The document is a draft version only. The content is still under  
internal review and subject to formal approval, which may result in  
modifications or additions. NXP Semiconductors does not give any  
representations or warranties as to the accuracy or completeness of  
information included herein and shall have no liability for the consequences of  
use of such information.  
Applications — Applications that are described herein for any of these  
products are for illustrative purposes only. NXP Semiconductors makes no  
representation or warranty that such applications will be suitable for the  
specified use without further testing or modification.  
Short data sheet — A short data sheet is an extract from a full data sheet  
with the same product type number(s) and title. A short data sheet is intended  
for quick reference only and should not be relied upon to contain detailed and  
full information. For detailed and full information see the relevant full data  
sheet, which is available on request via the local NXP Semiconductors sales  
office. In case of any inconsistency or conflict with the short data sheet, the  
full data sheet shall prevail.  
Limiting values — Stress above one or more limiting values (as defined in  
the Absolute Maximum Ratings System of IEC 60134) may cause permanent  
damage to the device. Limiting values are stress ratings only and operation of  
the device at these or any other conditions above those given in the  
Characteristics sections of this document is not implied. Exposure to limiting  
values for extended periods may affect device reliability.  
Terms and conditions of sale — NXP Semiconductors products are sold  
subject to the general terms and conditions of commercial sale, as published  
at http://www.nxp.com/profile/terms, including those pertaining to warranty,  
intellectual property rights infringement and limitation of liability, unless  
explicitly otherwise agreed to in writing by NXP Semiconductors. In case of  
any inconsistency or conflict between information in this document and such  
terms and conditions, the latter will prevail.  
15.3 Disclaimers  
General — Information in this document is believed to be accurate and  
reliable. However, NXP Semiconductors does not give any representations or  
warranties, expressed or implied, as to the accuracy or completeness of such  
information and shall have no liability for the consequences of use of such  
information.  
No offer to sell or license — Nothing in this document may be interpreted  
or construed as an offer to sell products that is open for acceptance or the  
grant, conveyance or implication of any license under any copyrights, patents  
or other industrial or intellectual property rights.  
Right to make changes — NXP Semiconductors reserves the right to make  
changes to information published in this document, including without  
limitation specifications and product descriptions, at any time and without  
notice. This document supersedes and replaces all information supplied prior  
to the publication hereof.  
15.4 Trademarks  
Notice: All referenced brands, product names, service names and trademarks  
are the property of their respective owners.  
Suitability for use — NXP Semiconductors products are not designed,  
authorized or warranted to be suitable for use in medical, military, aircraft,  
space or life support equipment, nor in applications where failure or  
16. Contact information  
For more information, please visit: http://www.nxp.com  
For sales office addresses, please send an email to: salesaddresses@nxp.com  
74AHC_AHCT273_3  
© NXP B.V. 2008. All rights reserved.  
Product data sheet  
Rev. 03 — 13 May 2008  
17 of 18  
 
 
 
 
 
 
74AHC273; 74AHCT273  
NXP Semiconductors  
Octal D-type flip-flop with reset; positive-edge trigger  
17. Contents  
1
2
3
4
General description . . . . . . . . . . . . . . . . . . . . . . 1  
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Ordering information. . . . . . . . . . . . . . . . . . . . . 2  
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2  
5
5.1  
5.2  
Pinning information. . . . . . . . . . . . . . . . . . . . . . 4  
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4  
6
Functional description . . . . . . . . . . . . . . . . . . . 5  
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 5  
Recommended operating conditions. . . . . . . . 6  
Static characteristics. . . . . . . . . . . . . . . . . . . . . 6  
Dynamic characteristics . . . . . . . . . . . . . . . . . . 8  
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10  
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 13  
Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 16  
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 16  
7
8
9
10  
11  
12  
13  
14  
15  
Legal information. . . . . . . . . . . . . . . . . . . . . . . 17  
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 17  
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
Disclaimers . . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 17  
15.1  
15.2  
15.3  
15.4  
16  
17  
Contact information. . . . . . . . . . . . . . . . . . . . . 17  
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
Please be aware that important notices concerning this document and the product(s)  
described herein, have been included in section ‘Legal information’.  
© NXP B.V. 2008.  
All rights reserved.  
For more information, please visit: http://www.nxp.com  
For sales office addresses, please send an email to: salesaddresses@nxp.com  
Date of release: 13 May 2008  
Document identifier: 74AHC_AHCT273_3  
 

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