TC74VCX2374FT_07 datasheet(7/11 Pages) TOSHIBA

7 / 11 page

TC74VCX2374FT/FK

2007-10-19

Dynamic Switching Characteristics (Ta = 25°C, input: tr = tf = 2.0 ns, CL = 30 pF)

Characteristics

Symbol

Test Condition

VCC (V)

Typ.

Unit

VIH = 1.8 V, VIL = 0 V

(Note)

1.8

0.15

VIH = 2.5 V, VIL = 0 V

(Note)

2.5

0.25

Quiet output maximum dynamic VOL

VOLP

VIH = 3.3 V, VIL = 0 V

(Note)

3.3

0.35

VIH = 1.8 V, VIL = 0 V

(Note)

1.8

−0.15

VIH = 2.5 V, VIL = 0 V

(Note)

2.5

−0.25

Quiet output minimum dynamic VOL

VOLV

VIH = 3.3 V, VIL = 0 V

(Note)

3.3

−0.35

VIH = 1.8 V, VIL = 0 V

(Note)

1.8

1.55

VIH = 2.5 V, VIL = 0 V

(Note)

2.5

2.05

Quiet output minimum dynamic VOH

VOHV

VIH = 3.3 V, VIL = 0 V

(Note)

3.3

2.65

Note:

Parameter guaranteed by design.

Capacitive Characteristics (Ta = 25°C)

Characteristics

Symbol

Test Condition

VCC (V)

Typ.

Unit

Input capacitance

CIN

⎯

1.8, 2.5, 3.3

Output capacitance

⎯

1.8, 2.5, 3.3

Power dissipation capacitance

CPD

fIN = 10 MHz

(Note)

1.8, 2.5, 3.3

Note:

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)

AC Test Circuit

Figure 1

Parameter

Switch

tpLH, tpHL

Open

tpLZ, tpZL

6.0 V

@VCC = 3.3 ± 0.3 V

VCC × 2

@VCC = 2.5 ± 0.2 V

@VCC = 1.8 V

tpHZ, tpZH

GND

6.0 V or VCC × 2

Open

GND

Switch

Output

Measure

CL = 30 pF

RL = 500 Ω

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