MT5C128K8A1 Micron Technology, MT5C128K8A1 Datasheet - Page 6

• Manufacturer Part Number: MT5C128K8A1
• Description: 128K x 8 SRAM
• Manufacturer: Micron Technology

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DataSheet
AC TEST CONDITIONS
NOTES
1. All voltages referenced to V
2. -3V for pulse width <
3. I
4. This parameter is sampled.
5. Test conditions as specified with the output loading
6.
7. At any given temperature and voltage condition,
DATA RETENTION ELECTRICAL CHARACTERISTICS (L version only)
MT5C128K8A1
Rev. 11/94
DESCRIPTION
V
Data Retention Current
Chip Deselect to Data
Retention Time
Operation Recovery Time
Input pulse levels ................................... Vss to 3.0V
Input rise and fall times ....................................... 3ns
Input timing reference levels ............................. 1.5V
Output reference levels ..................................... 1.5V
Output load .............................. See Figures 1 and 2
CC
The specified value applies with the outputs
unloaded and f = –––––––––– Hz.
as shown in Fig. 1 unless otherwise noted.
t
5pF as in Fig. 2. Transition is measured 500mV from
steady state voltage.
t
t
HZCE,
HZCE is less than
LZWE.
CC
4
for Retention Data
U
is dependent on output loading and cycle rates.
.com
t
HZOE and
SEMICONDUCTOR, INC.
t
RC (MIN)
t
LZCE, and
t
HZWE are specified with C
t
RC/2.
1
? C / E
V
SS
IN
(GND).
or
t
HZWE is less than
(Vcc -0.2V) V
(V
CONDITIONS
CC
0.2V
-0.2V)
DataSheet4U.com
V
REVOLUTIONARY PINOUT 128K x 8 SRAM
CC
CC
L
=
= 2V
= 3V
1-86
SYMBOL
t
I
I
CDR
CCDR
CCDR
V
8. ? W / E is HIGH for READ cycle.
9. Device is continuously selected. Chip enable and
10. Address valid prior to, or coincident with, latest
11.
12. Chip enable and write enable can initiate and
13. Typical currents are measured at 25 C.
14. Typical values are measured at 25 C, 5V and 15ns
15. Contact Micron for extended temperature (IT/AT/
t
R
DR
output enables are held in their active state.
occurring chip enable.
t
terminate a WRITE cycle.
cycle time.
XT) timing and current specifications; they may differ
from the commercial temperature range specifications
shown in this data sheet.
RC = Read Cycle Time.
Micron Semiconductor, Inc., reserves the right to change products or specifications without notice.
Q
MIN
t
RC
2
0
Z = 50
O
Fig. 1 OUTPUT LOAD
Fig. 2 OUTPUT LOAD
TYP
175
70
Q
EQUIVALENT
EQUIVALENT
255
V = 1.5V
T
MAX
300
500
MT5C128K8A1
50
+5V
480
5 pF
UNITS
1994, Micron Semiconductor, Inc.
ns
ns
V
A
A
30pF
NOTES
4, 11
13
13
4