Capacitance, Ac characteristics – Rainbow Electronics W49L102 User Manual

Page 12

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Preliminary W49L102

- 12 -

Power-up Timing

PARAMETER

SYMBOL

TYPICAL

UNIT

Power-up to Read Operation

T

PU

. READ

200

µ

S

Power-up to Write Operation

T

PU

. WRITE

10

mS

CAPACITANCE

(V

DD

= 3.3V, T

A

= 25

°

C, f = 1 MHz)

PARAMETER

SYMBOL

CONDITIONS

MAX.

UNIT

I/O Pin Capacitance

C

I/O

V

I/O

= 0V

12

pf

Input Capacitance

C

IN

V

IN

= 0V

6

pf

AC CHARACTERISTICS

AC Test Conditions

PARAMETER

CONDITIONS

Input Pulse Levels

0.4V/2.4V

Input Rise/Fall Time

< 5 nS

Input/Output Timing Level

1.5V/1.5V

Output Load

1 TTL Gate and C

L

= 30 pF for 55/70 nS

C

L

= 100 pF for 90 nS

AC Test Load and Waveform

+3.3V

1.8K

1.3K

D

OUT

30 pF for 55/70 nS
100 pF for 90 nS

(Including Jig and Scope)

Input

2.4V

0.4V

Test Point

Test Point

1.5V

1.5V

Output

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