is62wv2568bll-70ti Integrated Silicon Solution, Inc., is62wv2568bll-70ti Datasheet - Page 6

• Manufacturer Part Number: is62wv2568bll-70ti
• Description: 256k X 8 Low Voltage, Ultra Low Power Cmos Static Ram
• Manufacturer: Integrated Silicon Solution, Inc.

IS62WV2568ALL,
READ CYCLE SWITCHING CHARACTERISTICS
Notes:
1. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 0.9V, input pulse levels of 0.4 to 1.4V
2. Tested with the load in Figure 2. Transition is measured ±500 mV from steady-state voltage. Not 100% tested.
AC WAVEFORMS
READ CYCLE NO. 1
6
Symbol
t
t
t
t
t
t
t
t
t
and output loading specified in Figure 1.
ADDRESS
RC
AA
OHA
ACS1/
DOE
HZOE
LZOE
HZCS1/
LZCS1/
(2)
(2)
t
ACS2
t
t
D
LZCS2
HZCS2
OUT
(2)
(2)
Parameter
Read Cycle Time
Address Access Time
Output Hold Time
CS1/CS2 Access Time
OE Access Time
OE to High-Z Output
OE to Low-Z Output
CS1/CS2 to High-Z Output
CS1/CS2 to Low-Z Output
(1,2)
PREVIOUS DATA VALID
(Address Controlled) (CS1 = OE = V
IS62WV2568BLL
Integrated Silicon Solution, Inc. — www.issi.com —
Min.
55
—
10
—
—
—
10
t
5
0
OHA
55 ns
Max.
55
55
25
20
20
—
—
—
—
(1)
(Over Operating Range)
t
AA
IL
, CS2 = WE = V
t
RC
Min.
70
10
10
—
—
—
—
5
0
70 ns
Max.
—
70
—
70
35
25
—
25
—
IH
)
DATA VALID
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
OHA
1-800-379-4774
05/08/08
Rev. E