4 / 16 page
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
VDR
VCC for Data Retention
2.0
V
ICCDR
Data Retention Current
Com’l
VCC = VDR = 2.0V,
CE > VCC – 0.3V,
VIN > VCC – 0.3V or
VIN < 0.3V
µA
Com’l L
10
µA
tCDR
[4]
Chip Deselect to Data Retention Time
0
ns
tR
[5]
Operation Recovery Time
200
µs
Data Retention Waveform
Note:
5.
tR< 3 ns for the -12 and the -15 speeds. tR< 5 ns for the -20 and slower speeds
6.
No input may exceed VCC + 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:
THÉVENIN EQUIVALENT
ALL INPUT PULSES
C199–5
C199–6
167
Ω
C199–7
3.0V
3.0V
tCDR
VDR > 2V
DATA RETENTION MODE
tR
CE
VCC