SN74ALVCF162835LR datasheet(7/12 Pages) TI

部件名	SN74ALVCF162835LR

功能描述	3.3-V CMOS 18-BIT UNIVERSAL BUS DRIVER WITH 3-STATE OUTPUTS

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制造商	TI [Texas Instruments]

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PARAMETER MEASUREMENT INFORMATION

VOH

VOL

From Output

Under Test

CL = 50 pF

(see Note A)

LOAD CIRCUIT

S1

6 V

Open

GND

500

Ω

500

Ω

tPLH

tPHL

Output

Control

(low-level

enabling)

Output

Waveform 1

S1 at 6 V

(see Note B)

Output

Waveform 2

S1 at GND

(see Note B)

tPZL

tPZH

tPLZ

tPHZ

1.5 V

2.7 V

0 V

1.5 V

VOH

VOL

0 V

1.5 V

VOL + 0.3 V

1.5 V

VOH − 0.3 V

0 V

1.5 V

2.7 V

0 V

2.7 V

0 V

Input

2.7 V

3 V

VOLTAGE WAVEFORMS

SETUP AND HOLD TIMES

VOLTAGE WAVEFORMS

PROPAGATION DELAY TIMES

VOLTAGE WAVEFORMS

PULSE DURATION

VOLTAGE WAVEFORMS

ENABLE AND DISABLE TIMES

Timing

Input

Data

Input

Output

Input

tpd

tPLZ/tPZL

tPHZ/tPZH

Open

6 V

GND

TEST

S1

1.5 V

tw

th

tsu

1.5 V

NOTES: A. CL includes probe and jig capacitance.

B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.

Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.

C. All input pulses are supplied by generators having the following characteristics: PRR

≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.

D. The outputs are measured one at a time, with one transition per measurement.

E. tPLZ and tPHZ are the same as tdis.

F. tPZL and tPZH are the same as ten.

G. tPLH and tPHL are the same as tpd.

SN74ALVCF162835

3.3-V CMOS 18-BIT UNIVERSAL BUS DRIVER

WITH 3-STATE OUTPUTS

SCES397A – JULY 2002 – REVISED AUGUST 2004

VCC = 2.7 V AND 3.3 V ± 0.3 V

Figure 2. Load Circuit and Voltage Waveforms

7

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