CY7C199
AC Test Loads and Waveforms
[5]
R1 481Ω
5V
OUTPUT
30 pF
INCLUDING
JIGAND
SCOPE
R2
255
Ω
5V
OUTPUT
5 pF
INCLUDING
JIGAND
SCOPE
R2
255Ω
3.0V
10%
GND
≤t
r
R1 481Ω
ALL INPUT PULSES
90%
90%
10%
≤t
r
C199–6
C199–5
(a)
(b)
Equivalent to:
THÉVENIN EQUIVALENT
167
Ω
1.73V
OUTPUT
Data Retention Characteristics
Over the Operating Range (L version only)
Parameter
V
DR
I
CCDR
t
CDR[4]
t
R[5]
Description
V
CC
for Data Retention
V
CC
= V
DR
= 2.0V,
CE > V
CC
– 0.3V,
Com’l L
V
IN
> V
CC
– 0.3V or
Chip Deselect to Data Retention Time V
IN
< 0.3V
Operation Recovery Time
Data Retention Current
Com’l
Conditions
[6]
Min.
2.0
Max.
Unit
V
µA
10
0
t
RC
µA
ns
ns
Data Retention Waveform
DATA RETENTION MODE
V
CC
3.0V
t
CDR
CE
C199–7
V
DR
> 2V
3.0V
t
R
Notes:
4. Tested initially and after any design or process changes that may affect these parameters.
5. t
R
< 3 ns for the -12 and -15 speeds. t
R
< 5 ns for the -20 and slower speeds.
6. No input may exceed V
CC
+ 0.5V.
4
CYPRESS [ CYPRESS SEMICONDUCTOR ]
