UTRON
UT61L6416
Preliminary Rev. 0.5
64K X 16 BIT HIGH SPEED CMOS SRAM
UTRON TECHNOLOGY INC. P80072
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
TEL: 886-3-5777882 FAX: 886-3-5777919
3
CAPACITANCE
(TA=25℃, f=1.0MHz)
PARAMETER SYMBOL MIN. MAX UNIT
Input Capacitance C
IN
-
6 pF
Input/Output Capacitance C
I/O
-
8 pF
Note : These parameters are guaranteed by device characterization, but not production tested.
AC TEST CONDITIONS
Input Pulse Levels 0V to 3.0V
Input Rise and Fall Times 3ns
Input and Output Timing Reference Levels 1.5V
Output Load CL = 30pF, IOH/IOL = -4mA / 8mA
AC ELECTRICAL CHARACTERISTICS
(VCC =3.0V~3.6V, TA =0℃ to 70℃)
(1) READ CYCLE
PARAMETER SYMBOL
UT61L6416
-8
UT61L6416
-10
UT61L6416
-12
UT61L6416
-15
UNIT
MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX.
Read Cycle Time
tRC 8 - 10 - 12 - 15 - ns
Address Access Time
tAA - 8 - 10 - 12 - 15 ns
Chip Enable Access Time
t
ACE
- 8 - 10 - 12 - 15 ns
Output Enable Access Time
tOE - 4 - 5 - 6 - 7 ns
Chip Enable to Output in Low Z
t
CLZ*
3 - 3 - 3 - 3 - ns
Output Enable to Output in Low Z
t
OLZ*
0 - 0 - 0 - 0 - ns
Chip Disable to Output in High Z
t
CHZ*
- 4 - 5 - 6 - 7 ns
Output Disable to Output in High Z
t
OHZ*
- 4 - 5 - 6 - 7 ns
Output Hold from Address Change
tOH 3 - 3 - 3 - 3 - ns
LB
,UB
Access Time
tBA - 4 - 5 - 6 - 7 ns
LB
,UB
to High-Z Output
t
BHZ
- 4 - 5 - 6 - 7 ns
LB
,UB
to Low-Z Output
t
BLZ
0 - 0 - 0 - 0 - ns
(2) WRITE CYCLE
PARAMETER SYMBOL
UT61L6416
-8
UT61L6416
-10
UT61L6416
-12
UT61L6416
-15
UNIT
MIN. MAX. MIN. MAX. MIN. MAX. MIN. MAX.
Write Cycle Time
tWC 8 - 10 - 12 - 15 - ns
Address Valid to End of Write
tAW 7 - 8 - 9 - 10 - ns
Chip Enable to End of Write
tCW 7 - 8 - 9 - 10 - ns
Address Set-up Time
tAS 0 - 0 - 0 - 0 - ns
Write Pulse Width
tWP 7 - 8 - 9 - 10 - ns
Write Recovery Time
tWR 0 - 0 - 0 - 0 - ns
Data to Write Time Overlap
tDW 5.5 - 6 - 7 - 8 - ns
Data Hold from End of Write Time
tDH 0 - 0 - 0 - 0 - ns
Output Active from End of Write
t
OW*
3 - 3 - 3 - 3 - ns
Write to Output in High Z
t
WHZ*
- 4 - 5 - 6 - 7 ns
LB
,UB
Valid to End of Write
tBW 7 - 8 - 9 - 10 - ns
*These parameters are guaranteed by device characterization, but not production tested.
*8ns for Vcc=3.15V~3.6V