Cypress Semiconductor CY7C199 Scheda tecnica - Pagina 4

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