MSM51V18165B Datasheet, PDF (6/8 Pages) OKI electronic componets – 1,048,576-Word x 16-Bit DYNAMIC RAM : FAST PAGE MODE TYPE WITH EDO

MSM51V18165B/BSL
¡ Semiconductor
AC Characteristics (1/2)
(V_CC = 3.3 V ±0.3 V, Ta = 0°C to 70°C) Note 1, 2, 3
Parameter
MSM51V18165MSM51V18165 MSM51V18165
Symbol ^{B/BSL-50 B/BSL-60 B/BSL-70} Unit Note
Min. Max. Min. Max. Min. Max.
Random Read or Write Cycle Time
Read Modify Write Cycle Time
Fast Page Mode Cycle Time
Fast Page Mode Read Modify Write
Cycle Time
t_RC 84 — 104 — 124 — ns
t_RWC 110 — 135 — 160 — ns
t_HPC 20 — 25 — 30 — ns
t_HPRWC 58
—
68
—
78
— ns
Access Time from RAS
Access Time from CAS
Access Time from Column Address
Access Time from CAS Precharge
t_RAC — 50 — 60 — 70 ns 4, 5, 6
t_CAC — 13 — 15 — 20 ns 4, 5
t_AA — 25 — 30 — 35 ns 4, 6
t_CPA — 30 — 35 — 40 ns 4, 13
Access Time from OE
t_OEA
Output Low Impedance Time from CAS
t_CLZ
Data Output Hold After CAS Low
t_DOH
CAS to Data Output Buffer Turn-off Delay Time t_CEZ
RAS to Data Output Buffer Turn-off Delay Time t_REZ
OE to Data Output Buffer Turn-off Delay Time t_OEZ
WE to Data Output Buffer Turn-off Delay Time t_WEZ
Transition Time
t_T
Refresh Period
t_REF
Refresh Period (SL version)
t_REF
RAS Precharge Time
t_RP
RAS Pulse Width
t_RAS
— 13 — 15 — 20 ns 4
0
—
0
—
0
— ns 4
5 — 5 — 5 — ns
0
13
0
15
0
20 ns 7, 8
0 13 0 15 0 20 ns 7, 8
0
13
0
15
0
20 ns 7
0 13 0 15 0 20 ns 7
1
50
1
50
1
50 ns 3
— 16 — 16 — 16 ms
— 128 — 128 — 128 ms ₁₆
30 — 40 — 50 — ns
50 10,000 60 10,000 70 10,000 ns
RAS Pulse Width (Fast Page Mode with EDO) t_RASP 50 100,000 60 100,000 70 100,000 ns
RAS Hold Time
RAS Hold Time referenced to OE
t_RSH
7
t_ROH
7
— 10 — 13 — ns
— 10 — 13 — ns
CAS Precharge Time (Fast Page Mode with EDO) t_CP
7
— 10 — 10 — ns 15
CAS Pulse Width
t_CAS 7 10,000 10 10,000 13 10,000 ns
CAS Hold Time
CAS to RAS Precharge Time
RAS Hold Time from CAS Precharge
OE Hold Time from CAS (DQ Disable)
RAS to CAS Delay Time
RAS to Column Address Delay Time
Row Address Set-up Time
t_CSH 35 — 40 — 45 — ns
t_CRP
5
—
5
—
5
— ns 13
t_RHCP 30 — 35 — 40 — ns 13
t_CHO
5
—
5
—
5
— ns
t_RCD 11 37 14 45 14 50 ns 5
t_RAD
9
25 12 30 12 35 ns 6
t_ASR
0
—
0
—
0
— ns
Row Address Hold Time
t_RAH
7
— 10 — 10 — ns
Column Address Set-up Time
t_ASC
0
—
0
—
0
— ns 12
Column Address Hold Time
Column Address to RAS Lead Time
t_CAH
7
— 10 — 13 — ns 12
t_RAL 25 — 30 — 35 — ns
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