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TMS427809AP Datasheet(PDF) 7 Page - Texas Instruments

Part # TMS427809AP
Description  2097152 BY 8-BIT EXTENDED DATA OUT DYNAMIC RANDOM-ACCESS MEMORIES
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

TMS427809AP Datasheet(HTML) 7 Page - Texas Instruments

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TMS417809A, TMS427809A, TMS427809AP
2097152 BY 8-BIT EXTENDED DATA OUT
DYNAMIC RANDOM-ACCESS MEMORIES
SMKS894B – AUGUST 1996 – REVISED NOVEMBER 1997
7
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
electrical characteristics over recommended ranges of supply voltage and ambient conditions
(unless otherwise noted) (continued)
TMS427809A / P
PARAMETER
TEST CONDITIONS†
’427809A / P - 50
’427809A / P -60
’427809A / P - 70
UNIT
PARAMETER
TEST CONDITIONS†
MIN
MAX
MIN
MAX
MIN
MAX
UNIT
VOH
High-level
output
IOH = – 2 mA
LVTTL
2.4
2.4
2.4
V
VOH
output
voltage
IOH = – 100 µA
LVCMOS
VCC – 0.2
VCC – 0.2
VCC – 0.2
V
VOL
Low-level
output
IOL = 2 mA
LVTTL
0.4
0.4
0.4
V
VOL
output
voltage
IOL = 100 µA
LVCMOS
0.2
0.2
0.2
V
II
Input current
(leakage)
VCC = 3.6 V,
VI = 0 V to 3.9 V,
All others = 0 V to VCC
± 10
± 10
± 10
µA
IO
Output
current
(leakage)
VCC = 3.6 V,
VO = 0 V to VCC,
CAS high
± 10
± 10
± 10
µA
ICC1‡§
Average
read- or
write-cycle
current
VCC = 3.6 V,
Minimum cycle
120
100
90
mA
VIH = 2 V (LVTTL)
After one memory cycle
’427809A
2
2
2
mA
Average
After one memory cycle,
RAS and CAS high
’427809AP
1
1
1
mA
ICC2
g
standby
current
VIH = VCC – 0.2 V
(LVCMOS),
’427809A
1
1
1
mA
(),
After one memory cycle,
RAS and CAS high
’427809AP
150
150
150
µA
ICC3‡§
Average
refresh
current
(RAS-only
refresh
or CBR)
VCC = 3.6 V,
Minimum cycle,
RAS cycling,
CAS high (RAS-only refresh),
RAS low after CAS low (CBR)
120
100
90
mA
ICC4‡¶
Average
EDO current
VCC = 3.6 V,
tHPC = MIN,
RAS low,
CAS cycling
110
90
80
mA
ICC6#
Average
self-refresh
current
CAS < 0.2 V,
RAS < 0.2 V,
Measured after tRASS min
200
200
200
µA
ICC10#
Battery
back-up
operating
current
(equivalent
refresh time
is 128 ms),
CBR only
tRC = 62.5 µs,
tRAS ≤ 300 ns
VCC – 0.2 V ≤ VIH ≤ 3.9 V,
0 V
≤ VIL ≤ 0.2 V, W and OE = VIH,
Address and data stable
350
350
350
µA
† For conditions shown as MIN / MAX, use the appropriate value specified in the timing requirements.
‡ Measured with outputs open
§ Measured with a maximum of one address change while RAS = VIL
¶ Measured with a maximum of one address change during each EDO cycle, tHPC
# For TMS427809AP only


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