74LVT2952 データシートの表示（PDF） - NXP Semiconductors.
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74LVT2952 Datasheet PDF : 18 Pages
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NXP Semiconductors
74LVT2952
3.3 V Octal registered transceiver; 3-State
Table 7. Static characteristics …continued
At recommended operating conditions. Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
CI/O
input/output capacitance at I/O data pins, outputs disabled;
VI/O = 0 V or 3.0 V
Tamb = 40 C to +85 C
Min
Typ[1] Max
-
8
-
Unit
pF
[1] All typical values are measured at VCC = 3.3 V (unless stated otherwise) and Tamb = 25 C.
[2] For valid test results, data must not be loaded into the flip-flops (or latches) after applying power.
[3] Unused pins at VCC or GND.
[4] This parameter is valid for any VCC between 0 V and 1.2 V with a transition time of up to 10 ms. From VCC = 1.2 V to VCC = 3.3 V 0.3 V
a transition time of 100 ms is permitted. This parameter is valid for Tamb = +25 C only.
[5] This parameter is the bus hold overdrive current required to force the input to the opposite logic state.
[6] This parameter is the increase in supply current for each input at the specified voltage level other than VCC or GND.
10. Dynamic characteristics
Table 8. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V). For test circuit, see Figure 8.
Symbol Parameter
Conditions
tPLH
tPHL
tPZH
tPZL
tPHZ
tPLZ
tsu(H)
LOW to HIGH
propagation delay
HIGH to LOW
propagation delay
OFF-state to HIGH
propagation delay
OFF-state to LOW
propagation delay
HIGH to OFF-state
propagation delay
LOW to OFF-state
propagation delay
set-up time HIGH
CPBA to An or CPAB to Bn; see Figure 5
VCC = 2.7 V
VCC = 3.3 V 0.3 V
CPBA to An or CPAB to Bn; see Figure 5
VCC = 2.7 V
VCC = 3.3 V 0.3 V
OEBA to An; OEAB to Bn; see Figure 7
VCC = 2.7 V
VCC = 3.3 V 0.3 V
OEBA to An; OEAB to Bn; see Figure 7
VCC = 2.7 V
VCC = 3.3 V 0.3 V
OEBA to An; OEAB to Bn; see Figure 7
VCC = 2.7 V
VCC = 3.3 V 0.3 V
OEBA to An; OEAB to Bn; see Figure 7
VCC = 2.7 V
VCC = 3.3 V 0.3 V
An to CPAB or Bn to CPBA; see Figure 7
VCC = 2.7 V
VCC = 3.3 V 0.3 V
CEAB to CPAB or CEBA to CPBA; see Figure 7
VCC = 2.7 V
VCC = 3.3 V 0.3 V
74LVT2952
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 4 — 11 September 2013
Tamb = 40 C to +85 C
Min
Typ[1]
Max
Unit
-
-
7.1 ns
1.3
3.1
6.1 ns
-
-
6.9 ns
1.8
3.8
6.0 ns
-
-
6.7 ns
1.0
3.4
5.6 ns
-
-
8.0 ns
1.2
3.6
6.5 ns
-
-
6.9 ns
1.0
3.7
6.3 ns
-
-
5.3 ns
1.6
3.4
5.1 ns
2.8
-
2.5
1.0
- ns
- ns
0.8
-
0.9
0.3
- ns
- ns
© NXP B.V. 2013. All rights reserved.
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