Filter
Top Products
CY7C199
Document #: 38-05160 Rev. ** Page 4 of 16
AC Test Loads and Waveforms
[5]
Data Retention Characteristics Over the Operating Range (L version only)
Parameter Description Conditions
[6]
Min. Max. Unit
V
DR
V
CC
for Data Retention 2.0 V
I
CCDR
Data Retention Current Com’l V
CC
= V
DR
= 2.0V,
CE
> V
CC
– 0.3V,
V
IN
> V
CC
– 0.3V or
V
IN
< 0.3V
µA
Com’l L 10 µA
t
CDR
[4]
Chip Deselect to Data Retention Time 0 ns
t
R
[5]
Operation Recovery Time 200 µs
Data Retention Waveform
Note:
5. t
R
< 3 ns for the -12 and the -15 speeds. t
R
< 5 ns for the -20 and slower speeds
6. No input may exceed V
CC
+ 0.5V.
3.0V
5V
OUTPUT
R1 481
Ω
R2
255
Ω
30 pF
INCLUDING
JIG AND
SCOPE
GND
90%
10%
90%
10%
≤t
r
≤t
r
5V
OUTPUT
R1 481
Ω
R2
255
Ω
5pF
INCLUDING
JIG AND
SCOPE
(a) (b)
OUTPUT 1.73V
Equivalent to: THÉ VENIN EQUIVALENT
ALL INPUT PULSES
C199–5
C199–6
167 Ω
C199–7
3.0V3.0V
t
CDR
V
DR
> 2V
DATA RETENTION MODE
t
R
CE
V
CC