74LV27 데이터 시트보기 (PDF) - NXP Semiconductors.

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74LV27

Triple 3-input NOR gate

NXP Semiconductors. 

Philips Semiconductors

Triple 3-input NOR gate

Product data

74LV27

AC CHARACTERISTICS

GND = 0 V; tr = tf ≤ 2.5 ns; CL = 50 pF; RL = 1 kΩ

SYMBOL

PARAMETER

WAVEFORM

CONDITION

VCC (V)

1.2

tPHL/PLH

Propagation delay

nA, nB, nC to nY

Figures 1, 2

2.0

2.7

3.0 to 3.6

4.5 to 5.5

NOTES:

1. Unless otherwise stated, all typical values are measured at Tamb = 25 °C

2. Typical values are measured at VCC = 3.3 V.

LIMITS

–40 °C to +85 °C

MIN

TYP1 MAX

–40 °C to +125 °C

MIN

MAX

50

17

22

27

13

16

20

102

13

16

11

14

UNIT

ns

AC WAVEFORMS

VM = 1.5 V at VCC ≥ 2.7 V and ≤ 3.6 V;

VM = 0.5 × VCC at VCC < 2.7 V and ≥ 4.5 V;

VOL and VOH are the typical output voltage drop that occur with the

output load.

VI

nA, nB, nC

INPUT

GND

VOH

nY OUTPUT

VOL

VM

t PHL

VM

t PLH

SV00420

Figure 1. Input (nA, nB, nC) to output (nY) propagation delays.

TEST CIRCUIT

Vcc

PULSE

GENERATOR

Vl

RT

D.U.T.

VO

50 pF

CL

RL= 1 kΩ

Test Circuit for Outputs

DEFINITIONS

RL = Load resistor

CL = Load capacitance includes jig and probe capacitiance

RT = Termination resistance should be equal to ZOUT of pulse generators.

TEST

tPLH/tPHL

VCC

VI

< 2.7 V

2.7 V to 3.6 V

≥ 4.5 V

VCC

2.7 V

VCC

SV00902

Figure 2. Load circuitry for switching times.

2003 Mar 10

5

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