IDT71016, CMOS Static RAM
1 Meg (64K x 16-bit)
Commercial and Industrial Temperature Ranges
AC Electrical Characteristics (VCC = 5.0V ± 10%, Commercial and Industrial Range)
71016S12
71016S15
71016S20
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
READ CYCLE
____
____
____
t
RC
AA
ACS
Read Cycle Time
12
15
20
ns
ns
ns
ns
___ _
____
____
t
Address Access Time
Chip Select Access Time
12
15
20
___ _
____
____
t
12
15
20
____
____
____
(1)
Chip Select Low to Output in Low-Z
Chip Select High to Output in High-Z
Output Enable Low to Output Valid
Output Enable Low to Output in Low-Z
4
5
5
tCLZ
___ _
____
____
(1)
6
6
8
ns
ns
ns
tCHZ
___ _
____
____
tOE
7
8
10
____
____
____
(1)
0
0
0
tOLZ
___ _
____
____
(1)
OHZ
Output Enable High to Output in High-Z
Output Hold from Address Change
Byte Enable Low to Output Valid
Byte Enable Low to Output in Low-Z
6
6
8
ns
ns
ns
ns
t
____
____
____
tOH
4
4
5
___ _
____
____
tBE
7
8
10
(1)
BLZ
____
____
____
0
0
0
t
___ _
____
____
(1)
BHZ
Byte Enable High to Output in High-Z
6
6
8
ns
t
WRITE CYCLE
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
____
t
WC
AW
CW
BW
AS
WR
WP
DW
DH
Write Cycle Time
12
9
9
9
0
0
9
7
0
15
10
10
10
0
20
12
12
12
0
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
Address Valid to End of Write
Chip Select Low to End of Write
Byte Enable Low to End of Write
Address Set-up Time
t
t
t
t
Address Hold from End of Write
Write Pulse Width
0
0
t
10
8
12
10
0
t
Data Valid to End of Write
Data Hold Time
t
0
(1)
OW
____
____
____
Write Enable High to Output in Low-Z
1
1
1
t
___ _
____
____
(1)
WHZ
Write Enable Low to Output in High-Z
6
6
8
ns
t
3210 tbl 10
NOTE:
1. This parameteris guaranteedwiththe ACLoad(Figure 2)bydevice characterization, butis notproductiontested.
Timing Waveform of Read Cycle No. 1(1,2,3)
tRC
ADDRESS
tAA
tOH
tOH
DATAOUT VALID
DATAOUT
PREVIOUS DATAOUT VALID
3210 drw 06
,
NOTES:
1. WE is HIGH for Read Cycle.
2. Device is continuously selected, CS is LOW.
3. OE, BHE, and BLE are LOW.
6.42
5
ROCHESTER [ Rochester Electronics ]
