CY7C199
AC Test Loads and Waveforms
[5]
R1 481
Ω
5V
OUTPUT
30 pF
INCLUDING
JIG AND
SCOPE
R2
255
Ω
5V
OUTPUT
5 pF
INCLUDING
JIG AND
SCOPE
R2
255
Ω
3.0V
10%
GND
R1 481
Ω
ALL INPUT PULSES
90%
90%
10%
≤
t
r
≤
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
Data Retention Current
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
Com’l
Conditions
[6]
Min.
2.0
Max.
Unit
V
µA
10
0
200
µA
ns
µs
Data Retention Waveform
DATA RETENTION MODE
V
CC
3.0V
t
CDR
CE
C199–7
V
DR
> 2V
3.0V
t
R
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.
Document #: 38-05160 Rev. **
Page 4 of 16
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