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74LVC2952A Datasheet PDF : 19 Pages
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Philips Semiconductors
74LVC2952A
Octal registered transceiver
Table 9: Dynamic characteristics …continued
GND = 0 V; see Figure 8 for test circuit.
Symbol Parameter
Conditions
tPHZ, tPLZ
tW
tsu
th
3-state output disable time
OEBA, OEAB to An, Bn
clock pulse width HIGH or LOW CPAB or CPBA
set-up time HIGH or LOW
An, Bn to CPAB, CPBA
set-up time HIGH or LOW
CEAB, CEBA to CPAB, CPBA
hold time An, Bn to CPAB, CPBA
hold time CEAB, CEBA to CPAB, CPBA
see Figure 7
VCC = 1.2 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
see Figure 5
VCC = 1.2 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
see Figure 6
VCC = 1.2 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
see Figure 6
VCC = 1.2 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
see Figure 6
VCC = 1.2 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
see Figure 6
fmax
maximum clock pulse frequency
tsk(0)
skew
VCC = 1.2 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
see Figure 5
VCC = 1.2 V
VCC = 2.7 V
VCC = 3.0 V to 3.6 V
Min Typ Max Unit
--
1.5 -
1.5 -
- ns
9.5 ns
8.5 ns
- - - ns
3.0 - - ns
3.0 - - ns
- - - ns
1.7 - - ns
1.3 - - ns
- - - ns
1.3 - - ns
1.1 - - ns
- - - ns
1.5 - - ns
1.5 - - ns
- - - ns
1.4 - - ns
1.1 - - ns
--
150 -
150 -
[3] -
-
- MHz
- MHz
- MHz
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
Product data sheet
Rev. 02 — 29 June 2004
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
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