IDT71V416S, IDT71V416L, 3.3V CMOS Static RAM
4 Meg (256K x 16-Bit)
AC Electrical Characteristics
(V DD = Min. to Max., Commercial and Industrial Temperature Ranges)
Commercial and Industrial Temperature Ranges
71V416S/L10 (2)
71V416S/L12
71V416S/L15
Symbol
Parameter
Min.
Max.
Min.
Max.
Min.
Max.
Unit
READ CYCLE
t CLZ
t CHZ
t OLZ
t OHZ
t BLZ
t RC
t AA
t ACS
(1)
(1)
t OE
(1)
(1)
t OH
t BE
(1)
t BHZ (1)
Read Cycle Time
Address Access Time
Chip Select Access Time
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
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
Byte Enable High to Output in High-Z
10
____
____
4
____
____
0
____
4
____
0
____
____
10
10
____
5
5
____
5
____
5
____
5
12
____
____
4
____
____
0
____
4
____
0
____
____
12
12
____
6
6
____
6
____
6
____
6
15
____
____
4
____
____
0
____
4
____
0
____
____
15
15
____
7
7
____
7
____
7
____
7
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
WRITE CYCLE
t WHZ
t WC
t AW
t CW
t BW
t AS
t WR
t WP
t DW
t DH
t OW (1)
(1)
Write Cycle Time
Address Valid to End of Write
Chip Select Low to End of Write
Byte Enable Low to End of Write
Address Set-up Time
Address Hold from End of Write
Write Pulse Width
Data Valid to End of Write
Data Hold Time
Write Enable High to Output in Low-Z
Write Enable Low to Output in High-Z
10
8
8
8
0
0
8
5
0
3
____
____
____
____
____
____
____
____
____
____
____
6
12
8
8
8
0
0
8
6
0
3
____
____
____
____
____
____
____
____
____
____
____
7
15
10
10
10
0
0
10
7
0
3
____
____
____
____
____
____
____
____
____
____
____
7
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
NOTE:
1. This parameter is guaranteed with the AC Load (Figure 2) by device characterization, but is not production tested.
2. Low power 10ns (L10) speed 0oC to +70oC temperature range only.
Timing Waveform of Read Cycle No. 1 (1,2,3)
t RC
ADDRESS
3624 tbl 10
t OH
t AA
t OH
DATA OUT
NOTES:
PREVIOUS DATA OUT VALID
DATA OUT VALID
3624 drw 06
1. WE is HIGH for Read Cycle.
2. Device is continuously selected, CS is LOW.
3. OE , BHE , and BLE are LOW.
5
6.42
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