74LVC2952AD,112 [NXP]

74LVC2952A - Octal registered transceiver with 5 V tolerant inputs/outputs; 3-state SOP 24-Pin;
74LVC2952AD,112
型号: 74LVC2952AD,112
厂家: NXP    NXP
描述:

74LVC2952A - Octal registered transceiver with 5 V tolerant inputs/outputs; 3-state SOP 24-Pin

光电二极管 输出元件 逻辑集成电路 触发器
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74LVC2952A  
Octal registered transceiver with 5 V tolerant inputs/outputs;  
3-state  
Rev. 02 — 29 June 2004  
Product data sheet  
1. General description  
The 74LVC2952A is a high-performance, low power, low voltage, Si-gate CMOS device  
superior to most advanced CMOS compatible TTL families.  
Inputs can be driven from either 3.3 V or 5 V devices. In 3-state operation, outputs can  
handle 5 V. These features allow the use of these devices as translators in a mixed 3.3 V  
and 5 V environment.  
The 74LVC2952A is an octal non-inverting registered transceiver. Two 8-bit back-to-back  
registers store data flowing in both directions between two bidirectional buses. Data  
applied to the inputs is entered and stored on the rising edge of the clock (CPAB, CPBA)  
provided that the clock enable (CEAB, CEBA) input is LOW. The data is then present at  
the 3-state output buffers, but is only accessible when the output enable (OEAB, OEBA)  
input is LOW. Data flow from A inputs to B outputs is the same as for B inputs to A outputs.  
2. Features  
5 V tolerant inputs/outputs for interfacing with 5 V logic  
Supply voltage range from 1.2 V to 3.6 V  
CMOS low-power consumption  
Direct interface with TTL levels  
Inputs accept voltages up to 5.5 V  
Flow-through pin-out architecture  
Complies with JEDEC standard JESD8-B/JESD36  
ESD protection:  
HBM EIA/JESD22-A114-B exceeds 2000 V  
MM EIA/JESD22-A115-A exceeds 200 V.  
Specified from 40 °C to +85 °C and from 40 °C to +125 °C.  
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
3. Quick reference data  
Table 1:  
Quick reference data  
GND = 0 V; Tamb = 25 °C; tr = tf 2.5 ns.  
Symbol Parameter  
Conditions  
Min Typ Max Unit  
tPHL, tPLH propagation delay  
CPAB, CPBA to An, Bn  
CL = 50 pF; VCC = 3.3 V  
-
3.6  
-
ns  
fmax  
CI  
maximum clock frequency CL = 50 pF; VCC = 3.3 V  
input capacitance  
-
-
-
-
250  
5.0  
-
-
MHz  
pF  
CI/O  
CPD  
input/output capacitance  
10.0 -  
15.0 -  
pF  
[1] [2]  
power dissipation  
capacitance per latch  
outputs enabled;  
VCC = 3.3 V  
pF  
[1] 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 = total load switching outputs;  
Σ(CL × VCC2 × fo) = sum of the outputs.  
[2] The condition is VI = GND to VCC  
.
4. Ordering information  
Table 2:  
Ordering information  
Type number  
Package  
Temperature range Name  
Description  
Version  
74LVC2952AD  
74LVC2952ADB  
74LVC2952APW  
40 °C to +125 °C  
40 °C to +125 °C  
40 °C to +125 °C  
SO24  
plastic small outline package; 24 leads; body  
width 7.5 mm  
SOT137-1  
SOT340-1  
SOT355-1  
SSOP24  
TSSOP24  
plastic shrink small outline package; 24 leads;  
body width 5.3 mm  
plastic thin shrink small outline package; 24  
leads; body width 4.4 mm  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
2 of 19  
 
 
 
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
5. Functional diagram  
16 A0  
17 A1  
18 A2  
19 A3  
20 A4  
21 A5  
22 A6  
23 A7  
B0  
B1  
B2  
B3  
B4  
B5  
B6  
B7  
8
7
6
5
4
3
2
1
9
OEAB  
15 OEBA  
11 CEAB  
13 CEBA  
10 CPAB  
CPBA  
14  
001aab026  
Fig 1. Functional diagram.  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
3 of 19  
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
14  
10  
13  
11  
15  
9
1C5  
2C6  
G1  
G2  
EN3  
EN4  
16  
8
7
3
1
1
5D  
6D  
4
9
11  
17  
OEAB CEAB  
6
5
4
3
2
1
18  
19  
20  
21  
22  
23  
10  
16  
17  
18  
19  
20  
21  
22  
23  
CPAB  
CPBA  
B0  
14  
8
A0  
A1  
A2  
A3  
A4  
A5  
A6  
A7  
B1  
7
B2  
6
B3  
5
B4  
4
B5  
3
B6  
2
B7  
1
OEBA CEBA  
001aab024  
001aab025  
15  
13  
Fig 2. Logic symbol.  
Fig 3. IEC logic symbol.  
6. Pinning information  
6.1 Pinning  
1
2
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
B7  
B6  
V
CC  
A7  
A6  
A5  
A4  
A3  
A2  
A1  
A0  
3
B5  
4
B4  
5
B3  
6
B2  
2952A  
7
B1  
8
B0  
9
OEAB  
CPAB  
CEAB  
GND  
10  
11  
12  
OEBA  
CPBA  
CEBA  
001aab027  
Fig 4. Pin configuration.  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
4 of 19  
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
6.2 Pin description  
Table 3:  
Symbol  
B7  
Pin description  
Pin  
1
Description  
B data input/output  
B data input/output  
B data input/output  
B data input/output  
B data input/output  
B data input/output  
B data input/output  
B data input/output  
B6  
2
B5  
3
B4  
4
B3  
5
B2  
6
B1  
7
B0  
8
OEAB  
CPAB  
CEAB  
GND  
CEBA  
CPBA  
OEBA  
A0  
9
A to B output enable input (active LOW)  
A to B clock input (LOW-to-HIGH, edge-triggered)  
A to B clock enable input (active LOW)  
ground (0 V)  
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24  
B to A clock enable input (active LOW)  
B to A clock input (LOW-to-HIGH, edge-triggered)  
B to A output enable input (active LOW)  
A data input/output  
A1  
A data input/output  
A2  
A data input/output  
A3  
A data input/output  
A4  
A data input/output  
A5  
A data input/output  
A6  
A data input/output  
A7  
A data input/output  
VCC  
supply voltage  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
5 of 19  
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
7. Functional description  
7.1 Function table  
Table 4:  
Function table for register An or Bn[1]  
Operating mode Input  
Internal latch  
An or Bn  
CPxx  
CExx  
Hold data  
Load data  
Load data  
X
X
H
L
L
NC  
L
L
H
H
Table 5:  
Function table for output enable[1]  
Operating mode Input OExx  
Internal latch  
Output An or Bn  
Disable outputs  
Enable outputs  
Enable outputs  
H
L
L
X
L
Z
L
H
H
[1] H = HIGH voltage level;  
L = LOW voltage level;  
Z = high-impedance OFF-state;  
NC = no change;  
X = don’t care;  
= LOW-to-HIGH level transition.  
8. Limiting values  
Table 6:  
Limiting values  
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to  
GND (ground = 0 V).  
Symbol Parameter  
Conditions  
Min  
0.5 +6.5  
50  
0.5 +6.5  
±50  
Max  
Unit  
V
VCC  
IIK  
supply voltage  
input diode current  
input voltage  
VI < 0 V  
-
mA  
V
[1]  
VI  
IOK  
VO  
output diode current  
output voltage  
VO > VCC or VO < 0 V  
output HIGH or LOW state  
output 3-state  
-
mA  
[1]  
[1]  
0.5 VCC + 0.5 V  
0.5 +6.5  
V
IO  
output source or sink current VO = 0 V to VCC  
-
±50  
mA  
mA  
°C  
ICC, IGND VCC or GND current  
-
±100  
+150  
500  
Tstg  
Ptot  
storage temperature  
power dissipation  
65  
[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 SO24 packages: above 70 °C the value of Ptot derates linearly with 5.5 mW/K.  
For T(SSOP)24 packages: above 60 °C the value of Ptot derates linearly with 5.5 mW/K.  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
6 of 19  
 
 
 
 
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
9. Recommended operating conditions  
Table 7:  
Recommended operating conditions  
Symbol Parameter  
Conditions  
Min  
2.7  
1.2  
0
Typ  
Max Unit  
VCC  
supply voltage  
for maximum speed performance  
for low-voltage applications  
-
-
-
-
-
-
3.6  
3.6  
5.5  
VCC  
5.5  
V
V
V
V
V
VI  
input voltage  
VO  
output voltage  
output HIGH or LOW state  
output 3-state  
0
0
Tamb  
tr, tf  
operating ambient in free air  
temperature  
40  
+125 °C  
input rise and fall VCC = 1.2 V to 2.7 V  
0
0
-
-
20  
10  
ns/V  
ns/V  
times  
VCC = 2.7 V to 3.6 V  
10. Static characteristics  
Table 8:  
Static characteristics  
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).  
Symbol Parameter  
Conditions  
Min  
Typ  
Max Unit  
Tamb = 40 °C to +85 °C[1]  
VIH  
VIL  
HIGH-level input voltage  
VCC = 1.2 V  
VCC  
-
-
-
-
-
V
V
V
V
VCC = 2.7 V to 3.6 V  
2.0  
-
LOW-level input voltage  
HIGH-level output voltage  
VCC = 1.2 V  
-
-
GND  
0.8  
VCC = 2.7 V to 3.6 V  
VOH  
VI = VIH or VIL  
[2]  
IO = 100 µA; VCC = 2.7 V to 3.6 V  
IO = 12 mA; VCC = 2.7 V  
IO = 18 mA; VCC = 3.0 V  
IO = 24 mA; VCC = 3.0 V  
VI = VIH or VIL  
VCC 0.2  
VCC 0.5  
VCC 0.6  
VCC 0.8  
VCC  
-
-
-
-
V
V
V
V
-
-
-
VOL  
LOW-level output voltage  
input leakage current  
[2]  
[3]  
IO = 100 µA; VCC = 2.7 V to 3.6 V  
IO = 12 mA; VCC = 2.7 V  
IO = 24 mA; VCC = 3.0 V  
VI = 5.5 V or GND; VCC = 3.6 V  
-
-
-
-
-
GND 0.2  
V
-
-
0.4  
V
0.55  
V
ILI  
±0.1 ±5  
µA  
µA  
IOZ  
3-state output OFF-state current VI = VIH or VIL; VO = 5.5 V or GND;  
CC = 3.6 V  
0.1  
±10  
V
Ioff  
power-off leakage current  
quiescent supply current  
VI or VO = 5.5 V; VCC = 0 V  
-
-
0.1  
0.1  
±10  
µA  
µA  
ICC  
VI = VCC or GND; IO = 0 A;  
10  
VCC = 3.6 V  
[2]  
ICC  
additional quiescent supply  
current per pin  
VI = VCC 0.6 V; IO = 0 A;  
-
5
500  
µA  
VCC = 2.7 V to 3.6 V  
CI  
input capacitance  
-
-
5.0  
-
-
pF  
pF  
CI/O  
input/output capacitance  
10.0  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
7 of 19  
 
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
Table 8:  
Static characteristics …continued  
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).  
Symbol Parameter  
Conditions  
Min  
Typ  
Max Unit  
Tamb = 40 °C to +125 °C  
VIH  
HIGH-level input voltage  
VCC = 1.2 V  
VCC  
-
-
-
-
-
V
V
V
V
VCC = 2.7 V to 3.6 V  
2.0  
-
VIL  
LOW-level input voltage  
HIGH-level output voltage  
VCC = 1.2 V  
-
-
0
VCC = 2.7 V to 3.6 V  
0.8  
VOH  
VI = VIH or VIL  
IO = 100 µA; VCC = 2.7 V to 3.6 V  
IO = 12 mA; VCC = 2.7 V  
IO = 18 mA; VCC = 3.0 V  
IO = 24 mA; VCC = 3.0 V  
VI = VIH or VIL  
V
V
V
V
CC 0.3  
-
-
-
-
-
-
-
-
V
V
V
V
CC 0.65  
CC 0.75  
CC 1  
VOL  
LOW-level output voltage  
input leakage current  
IO = 100 µA; VCC = 2.7 V to 3.6 V  
IO = 12 mA; VCC = 2.7 V  
IO = 24 mA; VCC = 3.0 V  
VI = 5.5 V or GND; VCC = 3.6 V  
-
-
-
-
-
-
-
-
-
-
0.3  
0.6  
0.8  
±20  
±20  
V
V
V
ILI  
µA  
µA  
[3]  
IOZ  
3-state output OFF-state current VI = VIH or VIL; VO = 5.5 V or GND;  
CC = 3.6 V  
V
Ioff  
power-off leakage current  
quiescent supply current  
VI or VO = 5.5 V; VCC = 0 V  
-
-
-
-
±20  
µA  
µA  
ICC  
VI = VCC or GND; IO = 0 A;  
40  
V
CC = 3.6 V  
VI = VCC 0.6 V; IO = 0 A;  
CC = 2.7 V to 3.6 V  
ICC  
additional quiescent supply  
current per input pin  
-
-
5000 µA  
V
[1] All typical values are measured at Tamb = 25 °C.  
[2] These typical values are measured at VCC = 3.3 V.  
[3] For transceivers, the parameter IOZ includes the input leakage current.  
11. Dynamic characteristics  
Table 9:  
Dynamic characteristics  
GND = 0 V; see Figure 8 for test circuit.  
Symbol Parameter  
Conditions  
Min Typ Max Unit  
Tamb = 40 °C to +85 °C[1]  
tPHL, tPLH propagation delay CPBA, CPAB to An and Bn  
see Figure 5  
VCC = 1.2 V  
-
16  
-
ns  
VCC = 2.7 V  
1.5 4.4 8.6 ns  
1.5 3.6 7.6 ns  
[2]  
[2]  
VCC = 3.0 V to 3.6 V  
see Figure 7  
tPZH, tPZL 3-state output enable time  
OEBA, OEAB to An and Bn  
VCC = 1.2 V  
-
16  
-
ns  
VCC = 2.7 V  
1.5 4.7 8.6 ns  
1.0 3.9 7.6 ns  
VCC = 3.0 V to 3.6 V  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
8 of 19  
 
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
Table 9:  
Dynamic characteristics …continued  
GND = 0 V; see Figure 8 for test circuit.  
Symbol Parameter  
Conditions  
Min Typ Max Unit  
tPHZ, tPLZ 3-state output disable time  
OEBA, OEAB to An and Bn  
see Figure 7  
VCC = 1.2 V  
-
8
-
ns  
VCC = 2.7 V  
1.5 3.8 7.6 ns  
1.5 3.4 6.6 ns  
[2]  
[2]  
[2]  
[2]  
[2]  
[2]  
VCC = 3.0 V to 3.6 V  
tW  
clock pulse width HIGH or LOW CPAB or CPBA see Figure 5  
VCC = 1.2 V  
VCC = 2.7 V  
-
-
-
-
-
ns  
ns  
ns  
3.0 1.5  
3.0 1.5  
VCC = 3.0 V to 3.6 V  
see Figure 6  
tsu  
set-up time HIGH or LOW  
An, Bn to CPAB, CPBA  
VCC = 1.2 V  
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.7  
VCC = 3.0 V to 3.6 V  
see Figure 6  
+1.3 0.5 -  
set-up time HIGH or LOW  
CEAB, CEBA to CPAB, CPBA  
VCC = 1.2 V  
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.3  
VCC = 3.0 V to 3.6 V  
see Figure 6  
+1.1 0.5 -  
th  
hold time An, Bn to CPAB, CPBA  
hold time CEAB, CEBA to CPAB, CPBA  
maximum clock pulse frequency  
VCC = 1.2 V  
-
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.5  
VCC = 3.0 V to 3.6 V  
see Figure 6  
1.5 0.6  
VCC = 1.2 V  
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.4  
VCC = 3.0 V to 3.6 V  
see Figure 5  
+1.1 0.6 -  
fmax  
VCC = 1.2 V  
-
-
-
-
-
-
MHz  
MHz  
MHz  
VCC = 2.7 V  
150  
[2]  
[3]  
VCC = 3.0 V to 3.6 V  
150 250  
tsk(0)  
CPD  
skew  
-
-
-
1.0 ns  
[4] [5]  
power dissipation capacitance per latch  
outputs enabled; VCC = 3.3 V  
15.0 -  
pF  
Tamb = 40 °C to +125 °C  
tPHL, tPLH propagation delay CPBA, CPAB to An, Bn  
see Figure 5  
VCC = 1.2 V  
-
-
-
-
-
ns  
ns  
VCC = 2.7 V  
1.5  
1.5  
11  
VCC = 3.0 V to 3.6 V  
see Figure 7  
9.5 ns  
tPZH, tPZL 3-state output enable time  
OEBA, OEAB to An, Bn  
VCC = 1.2 V  
-
-
-
-
-
ns  
ns  
VCC = 2.7 V  
1.5  
1.0  
11  
VCC = 3.0 V to 3.6 V  
9.5 ns  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
9 of 19  
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
Table 9:  
Dynamic characteristics …continued  
GND = 0 V; see Figure 8 for test circuit.  
Symbol Parameter  
Conditions  
Min Typ Max Unit  
tPHZ, tPLZ 3-state output disable time  
OEBA, OEAB to An, Bn  
see Figure 7  
VCC = 1.2 V  
-
-
-
-
-
ns  
VCC = 2.7 V  
1.5  
1.5  
9.5 ns  
8.5 ns  
VCC = 3.0 V to 3.6 V  
tW  
clock pulse width HIGH or LOW CPAB or CPBA see Figure 5  
VCC = 1.2 V  
VCC = 2.7 V  
-
-
-
-
-
-
-
ns  
ns  
ns  
3.0  
3.0  
VCC = 3.0 V to 3.6 V  
see Figure 6  
tsu  
set-up time HIGH or LOW  
An, Bn to CPAB, CPBA  
VCC = 1.2 V  
-
-
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.7  
1.3  
VCC = 3.0 V to 3.6 V  
see Figure 6  
set-up time HIGH or LOW  
CEAB, CEBA to CPAB, CPBA  
VCC = 1.2 V  
-
-
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.3  
1.1  
VCC = 3.0 V to 3.6 V  
see Figure 6  
th  
hold time An, Bn to CPAB, CPBA  
hold time CEAB, CEBA to CPAB, CPBA  
maximum clock pulse frequency  
skew  
VCC = 1.2 V  
-
-
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.5  
1.5  
VCC = 3.0 V to 3.6 V  
see Figure 6  
VCC = 1.2 V  
-
-
-
-
-
-
-
ns  
ns  
ns  
VCC = 2.7 V  
1.4  
1.1  
VCC = 3.0 V to 3.6 V  
see Figure 5  
fmax  
VCC = 1.2 V  
-
-
-
-
-
-
-
-
MHz  
MHz  
MHz  
VCC = 2.7 V  
150  
150  
-
VCC = 3.0 V to 3.6 V  
[3]  
tsk(0)  
1.5 ns  
[1] All typical values are measured at Tamb = 25 °C.  
[2] These typical values are measured at VCC = 3.3 V.  
[3] Skew between any two outputs of the same package switching in the same direction. This parameter is guaranteed by design.  
[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 = total load switching outputs;  
Σ(CL × VCC2 × fo) = sum of the outputs.  
[5] The condition is VI = GND to VCC  
.
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
10 of 19  
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
12. Waveforms  
1/f  
max  
V
I
CPxx input  
GND  
V
M
t
W
t
t
PLH  
PHL  
V
OH  
V
An, Bn output  
M
V
OL  
001aab028  
Measurement points are given in Table 10.  
VOL and VOH are typical output voltage drop that occur with the output load.  
Fig 5. Clock input (CPBA, CPAB) to output (An, Bn) propagation delays, the clock pulse  
width and the maximum clock pulse frequency.  
Table 10: Measurement points  
Supply voltage  
VCC  
Input  
VM  
Output  
VM  
< 2.7 V  
0.5 × VCC  
1.5 V  
0.5 × VCC  
1.5 V  
2.7 V  
V
I
V
M
An, Bn, CExx input  
GND  
t
t
h
h
t
t
su  
su  
V
I
V
CPxx input  
M
GND  
001aab029  
Measurement points are given in Table 11.  
VOL and VOH are typical output voltage drop that occur with the output load.  
The shaded areas indicate when the input is permitted to change for predicable output  
performance.  
Fig 6. Set-up and hold times for the An, Bn and CExx inputs.  
Table 11: Measurement points  
Supply voltage  
VCC  
Input  
VM  
Output  
VM  
< 2.7 V  
0.5 × VCC  
1.5 V  
0.5 × VCC  
1.5 V  
2.7 V  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
11 of 19  
 
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
V
I
OExx input  
V
M
GND  
t
t
PZL  
PLZ  
V
CC  
output  
LOW-to-OFF  
OFF-to-LOW  
V
M
V
Y
V
OL  
t
t
PHZ  
PZH  
V
OH  
V
X
output  
HIGH-to-OFF  
OFF-to-HIGH  
V
M
GND  
outputs  
enabled  
outputs  
enabled  
outputs  
disabled  
001aab030  
Measurement points are given in Table 12.  
VOL and VOH are typical output voltage drop that occur with the output load.  
Fig 7. 3-state enable and disable times.  
Table 12: Measurement points  
Supply voltage  
VCC  
Input  
VM  
Output  
VM  
VX  
VY  
< 2.7 V  
0.5 × VCC  
1.5 V  
0.5 × VCC  
1.5 V  
VOL + 0.1 × VCC  
VOL + 0.3 V  
V
V
OH 0.1 × VCC  
OH 0.3 V  
2.7 V  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
12 of 19  
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
S1  
2 x V  
CC  
open  
GND  
V
CC  
R
R
L
V
I
V
O
PULSE  
D.U.T.  
GENERATOR  
C
L
L
R
T
001aab111  
Test data is given in Table 13.  
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.  
RL = Load resistance.  
Fig 8. Load circuitry for switching times.  
Table 13: Test data  
Supply voltage  
VCC  
Input  
VI  
Load  
CL  
S1  
tr, tf  
RL  
tPLH, tPHL tPZH, tPHZ tPZL, tPLZ  
1.2 V  
VCC  
2.5 ns 50 pF 500 [1] open  
GND  
GND  
GND  
2 × VCC  
2 × VCC  
2 × VCC  
2.7 V  
2.7 V 2.5 ns 50 pF 500 Ω  
2.7 V 2.5 ns 50 pF 500 Ω  
open  
open  
3.0 V to 3.6 V  
[1] The circuit performs better when RL = 1000 Ω.  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
13 of 19  
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
13. Package outline  
SO24: plastic small outline package; 24 leads; body width 7.5 mm  
SOT137-1  
D
E
A
X
c
H
v
M
A
E
y
Z
24  
13  
Q
A
2
A
(A )  
3
A
1
pin 1 index  
θ
L
p
L
1
12  
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  
15.6  
15.2  
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  
0.25  
0.1  
8o  
0o  
0.012 0.096  
0.004 0.089  
0.019 0.013 0.61  
0.014 0.009 0.60  
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  
0.01 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  
SOT137-1  
075E05  
MS-013  
Fig 9. Package outline SO24.  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
14 of 19  
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm  
SOT340-1  
D
E
A
X
c
H
v
M
A
y
E
Z
24  
13  
Q
A
2
A
(A )  
3
A
1
pin 1 index  
θ
L
p
L
1
12  
detail X  
w
M
b
p
e
0
2.5  
5 mm  
scale  
DIMENSIONS (mm are the original dimensions)  
A
(1)  
(1)  
(1)  
UNIT  
A
A
A
b
c
D
E
e
H
L
L
p
Q
v
w
y
Z
θ
1
2
3
p
E
max.  
8o  
0o  
0.21  
0.05  
1.80  
1.65  
0.38  
0.25  
0.20  
0.09  
8.4  
8.0  
5.4  
5.2  
7.9  
7.6  
1.03  
0.63  
0.9  
0.7  
0.8  
0.4  
mm  
2
0.65  
1.25  
0.25  
0.2  
0.13  
0.1  
Note  
1. Plastic or metal protrusions of 0.2 mm maximum per side are not included.  
REFERENCES  
OUTLINE  
EUROPEAN  
PROJECTION  
ISSUE DATE  
VERSION  
IEC  
JEDEC  
JEITA  
99-12-27  
03-02-19  
SOT340-1  
MO-150  
Fig 10. Package outline SSOP24.  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
15 of 19  
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
TSSOP24: plastic thin shrink small outline package; 24 leads; body width 4.4 mm  
SOT355-1  
D
E
A
X
c
H
v
M
A
y
E
Z
13  
24  
Q
A
2
(A )  
3
A
A
1
pin 1 index  
θ
L
p
L
1
12  
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
p
Q
v
w
y
Z
θ
1
2
3
p
E
max.  
8o  
0o  
0.15  
0.05  
0.95  
0.80  
0.30  
0.19  
0.2  
0.1  
7.9  
7.7  
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  
SOT355-1  
MO-153  
Fig 11. Package outline TSSOP24.  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
16 of 19  
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
14. Revision history  
Table 14: Revision history  
Document ID  
74LVC2952A_2  
Modifications:  
Release date Data sheet status  
20040629 Product data sheet  
Change notice Order number  
Supersedes  
-
9397 750 13251 74LVC2952A_1  
The format of this data sheet has been redesigned to comply with the new presentation and  
information standard of Philips Semiconductors  
Table 1: changed various values  
Table 8: changed maximum value of IOZ from ±5 µA to ±10 µA  
Table 8: added values for Tamb = 40 °C to +125 °C  
Table 9: changed various values  
Table 9: added values for Tamb = 40 °C to +125 °C.  
74LVC2952A_1  
19980729  
Product specification  
-
9397 750 04524  
-
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
17 of 19  
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
15. Data sheet status  
Level Data sheet status[1] Product status[2] [3]  
Definition  
I
Objective data  
Development  
This data sheet contains data from the objective specification for product development. Philips  
Semiconductors reserves the right to change the specification in any manner without notice.  
II  
Preliminary data  
Qualification  
This data sheet contains data from the preliminary specification. Supplementary data will be published  
at a later date. Philips Semiconductors reserves the right to change the specification without notice, in  
order to improve the design and supply the best possible product.  
III  
Product data  
Production  
This data sheet contains data from the product specification. Philips Semiconductors reserves the  
right to make changes at any time in order to improve the design, manufacturing and supply. Relevant  
changes will be communicated via a Customer Product/Process Change Notification (CPCN).  
[1]  
[2]  
Please consult the most recently issued data sheet before initiating or completing a design.  
The product status of the device(s) described in this data sheet may have changed since this data sheet was published. The latest information is available on the Internet at  
URL http://www.semiconductors.philips.com.  
[3]  
For data sheets describing multiple type numbers, the highest-level product status determines the data sheet status.  
16. Definitions  
17. Disclaimers  
Short-form specification The data in a short-form specification is  
extracted from a full data sheet with the same type number and title. For  
detailed information see the relevant data sheet or data handbook.  
Life support — These products are not designed for use in life support  
appliances, devices, or systems where malfunction of these products can  
reasonably be expected to result in personal injury. Philips Semiconductors  
customers using or selling these products for use in such applications do so  
at their own risk and agree to fully indemnify Philips Semiconductors for any  
damages resulting from such application.  
Limiting values definition Limiting values given are in accordance with  
the Absolute Maximum Rating System (IEC 60134). Stress above one or  
more of the limiting values may cause permanent damage to the device.  
These are stress ratings only and operation of the device at these or at any  
other conditions above those given in the Characteristics sections of the  
specification is not implied. Exposure to limiting values for extended periods  
may affect device reliability.  
Right to make changes — Philips Semiconductors reserves the right to  
make changes in the products - including circuits, standard cells, and/or  
software - described or contained herein in order to improve design and/or  
performance. When the product is in full production (status ‘Production’),  
relevant changes will be communicated via a Customer Product/Process  
Change Notification (CPCN). Philips Semiconductors assumes no  
responsibility or liability for the use of any of these products, conveys no  
license or title under any patent, copyright, or mask work right to these  
products, and makes no representations or warranties that these products are  
free from patent, copyright, or mask work right infringement, unless otherwise  
specified.  
Application information Applications that are described herein for any  
of these products are for illustrative purposes only. Philips Semiconductors  
make no representation or warranty that such applications will be suitable for  
the specified use without further testing or modification.  
18. Contact information  
For additional information, please visit: http://www.semiconductors.philips.com  
For sales office addresses, send an email to: sales.addresses@www.semiconductors.philips.com  
9397 750 13251  
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.  
Product data sheet  
Rev. 02 — 29 June 2004  
18 of 19  
 
 
 
 
74LVC2952A  
Philips Semiconductors  
Octal registered transceiver  
19. Contents  
1
2
3
4
5
General description . . . . . . . . . . . . . . . . . . . . . . 1  
Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1  
Quick reference data . . . . . . . . . . . . . . . . . . . . . 2  
Ordering information. . . . . . . . . . . . . . . . . . . . . 2  
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 3  
6
6.1  
6.2  
Pinning information. . . . . . . . . . . . . . . . . . . . . . 4  
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4  
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 5  
7
7.1  
8
Functional description . . . . . . . . . . . . . . . . . . . 6  
Function table . . . . . . . . . . . . . . . . . . . . . . . . . . 6  
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 6  
Recommended operating conditions. . . . . . . . 7  
Static characteristics. . . . . . . . . . . . . . . . . . . . . 7  
Dynamic characteristics . . . . . . . . . . . . . . . . . . 8  
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11  
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 14  
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 17  
Data sheet status . . . . . . . . . . . . . . . . . . . . . . . 18  
Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 18  
Contact information . . . . . . . . . . . . . . . . . . . . 18  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
© Koninklijke Philips Electronics N.V. 2004  
All rights are reserved. Reproduction in whole or in part is prohibited without the prior  
written consent of the copyright owner. The information presented in this document does  
not form part of any quotation or contract, is believed to be accurate and reliable and may  
be changed without notice. No liability will be accepted by the publisher for any  
consequence of its use. Publication thereof does not convey nor imply any license under  
patent- or other industrial or intellectual property rights.  
Date of release: 29 June 2004  
Document order number: 9397 750 13251  
Published in The Netherlands  

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