CBT3245A Просмотр технического описания (PDF) - NXP Semiconductors.

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CBT3245A

Octal bus switch

NXP Semiconductors. 

NXP Semiconductors

CBT3245A

Octal bus switch

Table 6. Static characteristics …continued

Voltages are referenced to GND (ground = 0 V).

Symbol Parameter

Conditions

RON

ON resistance

VCC = 4.5 V; VI = 0 V; II = 64 mA

VCC = 4.5 V; VI = 0 V; II = 30 mA

VCC = 4.5 V; VI = 2.4 V; II = 15 mA

Tamb = 40 C to +85 C

Min

Typ[1]

Max

Unit

[3]

-

5

7

[3]

-

5

7

[3]

-

10

15 

[1] All typical values are at VCC = 5 V, Tamb = 25 C.

[2] This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC or GND.

[3] Measured by the voltage drop between the An and the Bn terminals at the indicated current through the switch. ON resistance is

determined by the lowest voltage of the two (An or Bn) terminals.

10. Dynamic characteristics

Table 7. Dynamic characteristics

Voltages are referenced to GND (ground = 0 V). For test circuit see Figure 7.

Symbol

Parameter

Conditions

tpd

propagation delay

ten

enable time

tdis

disable time

An, Bn to Bn, An; see Figure 5

VCC = 5.0 V  0.5 V

OE to An or Bn; see Figure 6

VCC = 5.0 V  0.5 V

OE to An or Bn; see Figure 6

VCC = 5.0 V  0.5 V

Tamb = 40 C to +85 C Unit

Min

Max

[1][2]

-

[2]

0.25 ns

1.0

[2]

5.9

ns

1.0

6.0

ns

[1] The propagation delay is the calculated RC time constant of the typical ON resistance of the switch and the specified load capacitance,

when driven by an ideal voltage source (zero output impedance).

[2] tpd is the same as tPLH and tPHL.

ten is the same as tPZL and tPZH.

tdis is the same as tPLZ and tPHZ.

CBT3245A

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 3 — 5 January 2012

© NXP B.V. 2012. All rights reserved.

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