5962-8868104YA データシートの表示（PDF） - Austin Semiconductor
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5962-8868104YA Datasheet PDF : 12 Pages
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Austin Semiconductor, Inc.
SRAM
MT5C2564
AC TEST CONDITIONS
Input pulse levels ...................................... Vss to 3.0V
Input rise and fall times ......................................... 5ns
Input timing reference levels ................................ 1.5V
Output reference levels ....................................... 1.5V
Output load ................................. See Figures 1 and 2
NOTES
1. All voltages referenced to V (GND).
SS
2. -3V for pulse width < 20ns
3. ICC is dependent on output loading and cycle rates.
The specified value applies with the outputs
unloaded, and f = 1 Hz.
tRC (MIN)
4. This parameter is guaranteed but not tested.
5. Test conditions as specified with the output loading
as shown in Fig. 1 unless otherwise noted.
6. tLZCE, tLZWE, tLZOE, tHZCE, tHZOE and tHZWE are
specified with CL = 5pF as in Fig. 2. Transition is
measured ±200mV typical from steady state voltage,
167Ω
167Ω
Q
30pF VTH = 1.73V Q
5pF VTH = 1.73V
Fig. 1 Output Load
Equivalent
Fig. 2 Output Load
Equivalent
allowing for actual tester RC time constant.
7. At any given temperature and voltage condition,
tHZCE is less than tLZCE, and tHZWE is less than tLZWE and
tHZOE is less than tLZOE.
8. WE\ is HIGH for READ cycle.
9. Device is continuously selected. Chip enable is held in
its active state.
10. Address valid prior to, or coincident with, latest
occurring chip enable.
11. tRC = Read Cycle Time.
12. Chip enable (CE\) and write enable (WE\) can initiate and
terminate a WRITE cycle.
DATA RETENTION ELECTRICAL CHARACTERISTICS (L Version Only)
DESCRIPTION
VCC for Retention Data
CONDITIONS
SYM MIN MAX UNITS
VDR
2
---
V
Data Retention Current
CE\ > (VCC - 0.2V)
VIN > (VCC - 0.2V)
or < 0.2V
VCC = 2V ICCDR
VCC = 3V
1
mA
2
mA
Chip Deselect to Data
Retention Time
Operation Recovery Time
tCDR
0
---
ns
tR
tRC
ns
NOTES
4
4, 11
LOW Vcc DATA RETENTION WAVEFORM
MT5C2564
Rev. 3.1 6/05
VCC
tCDR
CE\
VIH
VIL
11112222333344445555666677778888
DATA RETENTION MODE
4.5V
VDR > 2V
4.5V
VDR
tR
11112222333344445555111166662222777733331111888844222244
111122223333DON’T CARE
1111222233334444UNDEFINED
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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