74VHC14_12 查看數據表（PDF） - STMicroelectronics

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74VHC14_12

Hex Schmitt inverter

STMicroelectronics 

74VHC14

Electrical characteristics

Table 7.

AC electrical characteristics (input tr = tf = 3 ns)

Test condition

Value

Symbol

Parameter

VCC CL

(V) (pF)

3.3(1) 15

tPLH Propagation delay 3.3(1) 50

tPHL time

5.0(2) 15

5.0(2) 50

1. Voltage range is 3.3 V ± 0.3 V.

2. Voltage range is 5.0 V ± 0.5 V.

TA = 25 °C

-40 to 85 °C -55 to 125 °C Unit

Min. Typ. Max. Min. Max. Min. Max.

8.3 12.8 1.0 15.0 1.0 15.0

10.8 16.3 1.0 18.5 1.0 18.5

ns

5.5 8.6 1.0 10.0 1.0 10.0

7.0 10.6 1.0 12.0 1.0 12.0

Table 8.

Capacitive characteristics

Test condition

Value

Symbol

Parameter

TA = 25 °C

-40 to 85 °C -55 to 125°C Unit

Min. Typ. Max. Min. Max. Min. Max.

CIN Input capacitance

CPD

Power dissipation

capacitance(1)

6 10

10

14

10 pF

pF

1. CPD is defined as the value of the IC’s internal equivalent capacitance which is calculated from the operating current

consumption without load. (Refer to Section 5: Test circuit). Average operating current can be obtained by the following

equation. ICC(opr) = CPD x VCC x fIN + ICC/6 (per gate).

Table 9.

Dynamic switching characteristics

Test condition

Value

Symbol

Parameter

VCC

(V)

TA = 25 °C

-40 to 85 °C -55 to 125 °C Unit

Min. Typ. Max. Min. Max. Min. Max.

VOLP Dynamic low

0.3 0.8

voltage quiet

5.0

V

VOLV output(1), (2)

-0.8 -0.3

VIHD

Dynamic high

voltage input (1), (3)

5.0

CL = 50 pF

3.5

V

VILD

Dynamic low

voltage input (1), (3)

5.0

1.5

V

1. Worst case package.

2. Max number of outputs defined as (n). Data inputs are driven 0 V to 5.0 V, (n-1) outputs switching and one output at GND.

3. Max number of data inputs (n) switching. (n-1) switching 0 V to 5.0 V. Inputs under test switching: 5.0 V to threshold (VILD),

0 V to threshold (VIHD), f = 1 MHz.

Doc ID 5741 Rev 9

7/16

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