lc321664aj Sanyo Semiconductor Corporation, lc321664aj Datasheet - Page 5

• Manufacturer Part Number: lc321664aj
• Description: 1 Meg 65536 Words X 16 Bits Dram Fast Page Mode, Byte Write
• Manufacturer: Sanyo Semiconductor Corporation

AC Electrical Characteristics at Ta = 0 to +70°C, V
Random read or
write cycle time
Read-write/read-modify-write
cycle time
Fast page mode cycle time
Fast page mode
Read-write/read-modify-
write cycle time
RAS access time
CAS access time
Column address access time
CAS precharge access time
Output low-impedance
time from CAS low
Output buffer turn-off delay time
Rise or fall time
RAS precharge time
RAS pulse width
RAS pulse width for
fast page mode only
RAS hold time
CAS hold time
CAS pulse width
RAS to CAS delay time
RAS to column address delay time
CAS to RAS precharge time
CAS precharge time
Row address setup time
Row address hold time
Column address setup time
Column address hold time
Column address hold time
referenced to RAS
Column address to RAS lead time
Read command setup time
Read command hold time
referenced to CAS
Read command hold time
referenced to RAS
Write command hold time
Write command hold time
referenced to RAS
Write command pulse width
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
t
t
t
t
t
t
t
t
t
RC
RWC
PC
PRWC
RAC
CAC
AA
CPA
CLZ
OFF
T
RP
RAS
RASP
RSH
CSH
CAS
RCD
RAD
CRP
CP
ASR
RAH
ASC
CAH
AR
RAL
RCS
RCH
RRH
WCH
WCR
WP
Symbol
LC321664AJ, AM, AT-80
CC
= 5 V ± 10% (Note 6, 7, 8)
135
180
100
min
55
45
80
80
30
80
30
25
17
10
10
12
20
60
45
15
60
15
0
0
3
0
0
0
0
0
100000
10000
10000
max
80
30
45
50
20
50
50
35
Continued on next page.
Unit
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
ns
ns
ns
ns
ns
No. 4795-5/30
9, 14
9, 14
9, 15
Note
15
10
14
15
11
11
9
9