IS42S16400A-7TI ISSI, Integrated Silicon Solution Inc, IS42S16400A-7TI Datasheet - Page 13

• Manufacturer Part Number: IS42S16400A-7TI
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S16400A-7TI

• Lead Free Status / Rohs Status: Not Compliant

IS42S16400A
AC ELECTRICAL CHARACTERISTICS
S y m b o l P a r a m e t e r
Notes:
1. When power is first applied, memory operation should be started 100 µs after Vcc and Vcc
2. Measured with t
3. The reference level is 1.4 V when measuring input signal timing. Rise and fall times are measured between V
4. Access time is measured at 1.4V with the load shown in the figure below.
5. The time t
Integrated Silicon Solution, Inc. — www.issi.com —
R e v . C
04/16/03
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
T
CK3
CK2
AC3
AC2
CHI
CL
OH3
OH2
LZ
HZ3
HZ2
DS
DH
AS
AH
CKS
CKH
CKA
CS
CH
RC
RAS
RP
RCD
RRD
DPL3
DPL2
DAL3
DAL2
REF
note that the power-on sequence must be executed before starting memory operation.
(max.).
when the output is in the high impedance state.
Clock Cycle Time
Access Time From CLK
CLK HIGH Level Width
CLK LOW Level Width
Output Data Hold Time
Output LOW Impedance Time
Output HIGH Impedance Time
Input Data Setup Time
Input Data Hold Time
Address Setup Time
Address Hold Time
CKE Setup Time
CKE Hold Time
CKE to CLK Recovery Delay Time
Command Setup Time (CS, RAS, CAS, WE, DQM)1.5
Command Hold Time (CS, RAS, CAS, WE, DQM) 0.8
Command Period (REF to REF / ACT to ACT)
Command Period (ACT to PRE)
Command Period (PRE to ACT)
Active Command To Read / Write Command Delay Time
Command Period (ACT [0] to ACT[1])
Input Data To Precharge
Command Delay time
Input Data To Active / Refresh
Command Delay time (During Auto-Precharge)
Transition Time
Refresh Cycle Time (4096)
HZ
(max.) is defined as the time required for the output voltage to transition by ± 200 mV from V
T
= 1 ns.
(4)
(5)
CAS Latency = 2
CAS Latency = 2
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 3
(1,2,3)
2CLK+t
2CLK+t
1CLK+3
M i n .
2CLK
2CLK
1-800-379-4774
2.5
2.5
1.5
0.8
1.5
0.8
1.5
0.8
60
35
16
16
14
6
—
—
—
2
2
—
—
—
—
—
1
—
- 6
RP
RP
M a x .
50,000
1.5
0.8
10
64
—
—
6
9
—
—
—
—
0
6
9
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2CLK+t
2CLK+t
1CLK+3
M i n .
2CLK
2CLK
2.5
2.5
2.5
2.5
1.5
0.8
1.5
0.8
1.5
0.8
10
63
37
16
16
14
7
—
—
—
—
—
—
—
1
—
- 7
RP
RP
Q
reach their stipulated voltages. Also
M a x .
50,000
2.0
10
64
—
—
6
9
—
—
—
—
0
6
9
—
—
—
—
—
—
—
1
—
—
—
—
—
—
—
—
2CLK+t
2CLK+t
OH
1CLK+3
M i n .
2CLK
2CLK
3.5
3.5
2.5
2.5
2.0
2.0
2.0
10
10
70
44
18
18
15
—
—
—
—
—
1
1
1
—
—
1
—
(min.) or V
IH
- 1 0
RP
RP
(min.) and V
ISSI
M a x
50,000
ns
ns
10
64
—
—
7
9
—
—
—
—
0
7
9
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
OL
(max.)
IL
U n i t s
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
13
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