IS42S16100A1-7T ISSI, Integrated Silicon Solution Inc, IS42S16100A1-7T Datasheet - Page 18

• Manufacturer Part Number: IS42S16100A1-7T
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: SDRAMr

Specifications of IS42S16100A1-7T

• Organization: 1Mx16
• Density: 16Mb
• Address Bus: 12b
• Access Time (max): 6/5.5ns
• Maximum Clock Rate: 143MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP-II
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 130mA
• Pin Count: 50
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

18
IS42S16100A1
TWO BANKS OPERATION COMMAND TRUTH TABLE
Notes:
1. H: HIGH level input, L: LOW level input, X: HIGH or LOW level input, RA: Row Address, CA: Column Address
2. The device state symbols are interpreted as follows:
3. CA: A8,A9 = don’t care.
Operation
DESL
NOP
BST
READ/READA
WRIT/WRITA
ACT
PRE/PALL
REF
MRS
I
A
R
W
RP
WP
Any Any State
Idle (inactive state)
Row Active State
Read
Write
Read With Auto-Precharge
Write With Auto-Precharge
CS
CS
CS
CS
CS RAS
H
L
L
L
L
L
L
L
L
RAS
RAS
RAS CAS
RAS
X
H
H
H
H
L
L
L
L
CAS
CAS
CAS
CAS WE
X
H
H
H
H
L
L
L
L
WE
WE
WE
WE A11 A10 A9-A0
X
H
H
H
H
L
L
L
L
X
X
X
H
H
H
H
H
H
H
H
H
X
X
H
H
X
L
L
L
L
L
L
L
L
L
L
L
OPCODE
Integrated Silicon Solution, Inc. — www.issi.com —
RA RA
RA RA
X
X
X
H CA
H CA
H CA
H CA
H CA
H CA
H CA
H CA
H
H
X
L CA
L CA
L CA
L CA
L CA
L CA
L CA
L CA
L
L
L
L
X
X
X
X
X
X
X
X
X
X
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
(3)
Previous State
BANK 0BANK 1
R/W/A/I
R/W/A/I
R/W/A/I
R/W/A
R/W/A
R/W/A
R/W/A
R/W/A
R/W
R/W
R/W
R/W
Any
Any
Any
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
A
A
A
A
I
I
I
I
(1,2)
R/W/A/I
R/W/A/I
R/W/A/I
R/W/A
R/W/A
R/W/A
R/W/A
R/W/A
R/W
R/W
R/W
R/W
Any
Any
Any
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
I/A
A
A
A
A
I
I
I
I
BANK 0BANK 1
R/W/A/I
Next State
Any
Any
Any
WP
WP
I/A
I/A
I/A
I/A
RP
RP
I/A
I/A
I/A
W
W
A
A
A
R
R
A
A
A
I
I
I
I
I
I
I
R/W/A/I
Any
Any
Any
WP
WP
RP
RP
I/A
I/A
I/A
I/A
I/A
I/A
I/A
W
W
A
R
R
A
A
A
A
A
I
I
I
I
I
I
I
ISSI
1-800-379-4774
08/12/03
Rev. C
®