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