Capacitance, Ac characteristics – Rainbow Electronics W49F002U User Manual
Page 13
W49F002U
Publication Release Date: April 2000
- 13 -
Revision A2
Power-up Timing
PARAMETER SYMBOL
TYPICAL
UNIT
Power-up to Read Operation
T
PU
. READ
100
µ
S
Power-up to Write Operation
T
PU
. WRITE
5
mS
CAPACITANCE
(V
DD
= 5.0V, 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
0V to 3.0V
Input Rise/Fall Time
< 5 nS
Input/Output Timing Level
1.5V/1.5V
Output Load
1 TTL Gate and C
L
= 100 pF for 120 nS;
C
L
= 30 pF for 70 nS /90 nS
AC Test Load and Waveform
+5V
1.8K
1.3K
D
OUT
Ω
Ω
30 pF for 70nS / 90nS
(Including Jig and Scope)
Input
3V
0V
Test Point
Test Point
1.5V
1.5V
Output
100 pF for 120nS