M5M417400CJ-7S View Datasheet(PDF) - MITSUBISHI ELECTRIC
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M5M417400CJ-7S Datasheet PDF : 22 Pages
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MITSUBISHI LSIs
M5M417400CJ,TP-5,-6,-7,-5S,-6S,-7S
FAST PAGE MODE 16777216-BIT (4194304-WORD BY 4-BIT) DYNAMIC RAM
Fast-Page Mode Cycle (Read, Early Write, Read-Write, Read-Modify-Write Cycle)
(Note 23)
Limits
Symbol
Parameter
M5M417400C-5,-5S
M5M417400C-6,-6S
M5M417400C-7,-7S
Unit
Min
Max
Min
Max
Min
Max
tPC
Fast page mode read/write cycle time
35
40
45
ns
tPRWC
Fast page mode read write/read modify write cycle time
76
85
95
ns
tRAS
RAS low pulse width for read write cycle
(Note 24)
85
125000
100
125000
115
125000
ns
tCP
CAS high pulse width
(Note 25)
8
12
10
15
10
15
ns
tCPRH
RAS hold time after CAS precharge
30
35
40
ns
tCPWD
Delay time, CAS precharge to W low
(Note 22)
53
60
65
ns
Note 23: All previously specified timing requirements and switching characteristics are applicable to their respective fast page mode cycle.
24: tRAS(min) is specified as two cycles of CAS input are performed.
25: tCP(max) is specified as a reference point only.
CAS before RAS Refresh Cycle
(Note 26)
Limits
Symbol
Parameter
M5M417400C-5,-5S
M5M417400C-6,-6S
M5M417400C-7,-7S
Unit
Min
Max
Min
Max
Min
Max
tCSR
CAS setup time before RAS low
10
10
10
ns
tCHR
CAS hold time after RAS low
10
10
15
ns
tRSR
Read setup time before RAS low
10
10
10
ns
tRHR
Read hold time after RAS low
10
10
15
ns
Note 26: Eight or more CAS before RAS cycles instead of eight RAS cycles are necessary for proper operation of CAS before RAS refresh mode.
SELF REFRESH SPECIFICATIONS
Self refresh devices are denoted by “S” after speed item, like -5S/-6S/-7S. The other characteristics and requirements than the below are
same as normal devices.
ELECTRICAL CHARACTERISTICS
(Ta = 0 ~ 70°C, VCC = 5V ± 10%, VSS = 0V, unless otherwise noted) (Note 2)
Symbol
Parameter
Test conditions
ICC8(AV)
Average supply current
from VCC
Slow-Refresh cycle
(Note 5)
ICC9(AV)
Average supply current
from VCC
Slow-Refresh cycle
(Note 5)
M5M417400C (S)
M5M417400C (S)
CAS before RAS refresh cycling
or RAS cycling & CAS ≤ 0.2V
OE & WE ≤ 0.2V
or OE & WE ≥ VCC - 0.2V
A0 ~ A10 ≤ 0.2V
or A0 ~ A10 ≥ VCC - 0.2V
tREF = 128ms (2048 cycles)
output = OPEN
tRAS = tRASmin. ~ 1µs
RAS = CAS ≤ 0.2V
output = OPEN
Limits
Unit
Min
Typ
Max
500
µA
200
µA
7
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