as4lc4m16 Austin Semiconductor, Inc., as4lc4m16 Datasheet - Page 10

• Manufacturer Part Number: as4lc4m16
• Description: Extended Data Out Edo Dram
• Manufacturer: Austin Semiconductor, Inc.

AC ELECTRICAL CHARACTERISTICS (Continued)
(V
NOTES:
*For XT Temp (-55°C to +125°C) tRASP (MAX) = 80,000ns for -5 and -6 speed.
**64ms Refresh for IT Temp, 24ms Refresh for XT Temp.
AS4LC4M16
Rev. 1.1 6/05
EDO-PAGE-MODE READ or WRITE cycle time
EDO-PAGE-MODE READ-WRITE cycle time
Access time from RAS\
RAS\ to column-address delay time
Row address hold time
RAS\ pulse width
RAS\ pulse width (EDO PAGE MODE)
RAS\ pulse width during Self Refresh
Random READ or WRITE cycle time
RAS\ to CAS\ delay time
READ command hold time (referenced to CAS\)
READ command setup time
Refresh period
Refresh period ("S" version)
RAS\ precharge time
RAS\ to CAS\ precharge time
RAS\ precharge time exiting Self Refresh
READ command hold time (referenced to RAS\)
RAS\ hold time
READ-WRITE cycle time
RAS\ to WE\ delay time
WRITE command to RAS\ lead time
Transitioin time (rise or fall)
WRITE command hold time
WRITE command hold time (referenced to RAS\)
WE\ command setup time
WE\ to outputs in High-Z
WRITE command pulse width
WE\ pulse widths to disable outputs
WE\ hold time (CBR Refresh)
WE\ setup time (CBR Refresh)
CC
= +3.3V ±0.3V)
DESCRIPTION
Austin Semiconductor, Inc.
SYMBOL
t
t
t
PRWC
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RASP
RASS
t
t
t
t
t
t
RWC
RWD
WCH
WCR
WCS
WHZ
t
WRH
WRP
t
RCD
RCH
RRH
RWL
WPZ
t
RAC
RAD
RAH
RAS
RCS
REF
REF
t
RPC
RPS
RSH
WP
RC
PC
RP
t
T
10
MIN
116
20
47
50
50
80
84
11
30
90
13
67
13
38
10
9
7
0
0
5
0
2
8
0
5
8
8
-5
125,000*
64/24**
10,000
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
MAX
100
50
25
12
MIN
104
105
140
25
56
12
10
60
60
80
14
40
15
79
15
10
45
10
10
10
0
0
5
0
2
0
5
-6
125,000*
64/24**
10,000
MAX
5,6,7,8,9,10,11,12
100
60
25
15
AS4LC4M16
UNITS NOTES
ms
ms
ns
ns
ns
ns
ns
ns
ns
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
DRAM
DRAM
DRAM
DRAM
DRAM
14, 28
16, 30
22, 23
23, 38
18, 28
34
34
15
28
16
35
18
35