IS42S32200B-7TI ISSI, Integrated Silicon Solution Inc, IS42S32200B-7TI Datasheet - Page 33

• Manufacturer Part Number: IS42S32200B-7TI
• Manufacturer: ISSI, Integrated Silicon Solution Inc

Specifications of IS42S32200B-7TI

• Lead Free Status / Rohs Status: Supplier Unconfirmed

IS42S32200B
Integrated Silicon Solution, Inc. — www.issi.com —
R e v . 0 0 C
09/29/03
AC ELECTRICAL CHARACTERISTICS
Notes:
1. An initial pause of 100us is required after power up, followed by two AUTO REFRESH commands, before proper device
2. Measured with t
3. The reference level is 1.5V when measuring input signal timing. Rise/fall times are measured between V
4. Access time is measured at 1.5V with the load shown in the figure below.
5. The time t
6. CLK must be toggled a minimum of two times during this period.
Symbol Parameter
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
CHI
CL
OH
LZ
HZ3
HZ2
DH
CKH
CH
RC
RCD
RRD
CK3
CK2
AC3
AC2
DS
AS
AH
CKS
CKA
CS
RAS
RP
operation is ensured. (Vdd and VddQ must be powered up simultaneously. GND and GNDQ must be at same potential.) The
two AUTO REFRESH command wake-ups should be repeated anytime the t
(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)
Command Hold Time (CS, RAS, CAS, WE, DQM)
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])
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 = 3
CAS Latency = 2
CAS Latency = 3
CAS Latency = 2
CAS Latency = 2
CAS Latency = 3
(1,2,3)
1-800-379-4774
1CLK+6 —
Min. Max.
REF
2.5
2.5
1.5
1.5
1.5
1.5
10
60
42 120,000
18
18
12
—
—
—
—
6
2
1
1
1
1
1
-6
refresh requirement is exceeded.
5.5
7.5
5.5
7.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1CLK+7 —
Min. Max.
1.5
10
70
48 120,000
20
20
14
—
—
—
—
7
3
3
2
1
2
1
1
2
1
2
1
-7
6.5
5.5
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
8
8
OH
IH
(min.) and V
(min.) or V
ISSI
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
OL
IL
(max.)
33
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