TC74LCX646FS datasheet(7/11 Pages) TOSHIBA

部件名	TC74LCX646FS

功能描述	Low-Voltage Octal Bus Transceiver/Register with 5-V Tolerant Inputs and Outputs

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制造商	TOSHIBA [Toshiba Semiconductor]

网页	http://www.semicon.toshiba.co.jp/eng

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7 / 11 page

TC74LCX646FS

2002-01-11

7

AC Characteristics (Ta

==== ----40 to 85°C)

Characteristics

Symbol

Test Condition

VCC (V)

Min

Max

Unit

2.7

¾

Maximum clock frequency

fmax

Figure 1, Figure 2

3.3

± 0.3

150

¾

MHz

2.7

¾

8.0

Propagation delay time

(An, Bn-Bn, An)

tpLH

tpHL

Figure 1, Figure 2

3.3

± 0.3

1.5

7.0

ns

2.7

¾

9.5

Propagation delay time

(CAB, CBA-Bn, An)

tpLH

tpHL

Figure 1, Figure 5

3.3

± 0.3

1.5

8.5

ns

2.7

¾

9.5

Propagation delay time

(SAB, SBA-Bn, An)

tpLH

tpHL

Figure 1, Figure 2

3.3

± 0.3

1.5

8.5

ns

2.7

¾

9.5

Output enable time

( OE , DIR-An, Bn)

tpZL

tPZH

Figure 1, Figure 3, Figure 4

3.3

± 0.3

1.5

8.5

ns

2.7

¾

9.5

Output disable time

( OE , DIR-An, Bn)

tpLZ

tpHZ

Figure 1, Figure 3, Figure 4

3.3

± 0.3

1.5

8.5

ns

2.7

3.3

¾

Minimum pulse width

tW (H)

tW (L)

Figure 1, Figure 5

3.3

± 0.3

3.3

¾

ns

2.7

2.5

¾

Minimum setup time

ts

Figure 1, Figure 5

3.3

± 0.3

2.5

¾

ns

2.7

1.5

¾

Minimum hold time

th

Figure 1, Figure 5

3.3

± 0.3

1.5

¾

ns

2.7

¾

Output to output skew

tosLH

tosHL

(Note 10)

3.3

± 0.3

¾

1.0

ns

Note 10: Parameter guaranteed by design.

(tosLH = |tpLHm - tpLHn|, tosHL = |tpHLm - tpHLn|)

Dynamic Switching Characteristics

(Ta

==== 25°C, input: tr ==== tf ==== 2.5 ns, CL ==== 50 pF, RL ==== 500 W

W

W)

Characteristics

Symbol

Test Condition

VCC (V)

Typ.

Unit

Quiet output maximum

dynamic VOL

VOLP

VIH = 3.3 V, VIL = 0 V

3.3

0.8

V

Quiet output minimum

dynamic VOL

|VOLV|

VIH = 3.3 V, VIL = 0 V

3.3

0.8

V

Capacitive Characteristics (Ta

==== 25°C)

Characteristics

Symbol

Test Condition

VCC (V)

Typ.

Unit

Input capacitance

CIN

DIR, OE , CAB, CBA, SAB, SBA

3.3

7

pF

Bus input capacitance

CI/O

An, Bn

3.3

8

pF

Power dissipation capacitance

CPD

fIN = 10 MHz

(Note 11)

3.3

25

pF

Note 11: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating

current consumption without load.

Average operating current can be obtained by the equation:

ICC (opr) = CPD･VCC･fIN + ICC/8 (per bit)

类似零件编号 - TC74LCX646FS

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Toshiba Semiconductor	TC74LCX646FS	209Kb / 11P	Low-Voltage Octal Bus Transceiver/Register with 5-V Tolerant Inputs and Outputs

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