4194304-WORD BY 4-BIT HIGH-SPEED DRAMS
TMS416400, TMS416400P, TMS417400, TMS417400P
TMS426400, TMS426400P, TMS427400, TMS427400P
4194304-WORD BY 4-BIT HIGH-SPE...
Description
TMS416400, TMS416400P, TMS417400, TMS417400P
TMS426400, TMS426400P, TMS427400, TMS427400P
4194304-WORD BY 4-BIT HIGH-SPEED DRAMS
SMKS881B – MAY 1995 – REVISED AUGUST 1995
Electrical characteristics for TMS416400/P and
TMS417400/P is Production Data. Electrical
characteristics for TMS426400/P and
TMS427400/P is Product Preview only.
D Organization . . . 4 194304 × 4 D Single 5 V Power Supply for TMS41x400 / P
(±10% Tolerance)
D Single 3.3 V Power Supply for
TMS42x400/ P (± 0.3 V Tolerance)
D Performance Ranges:
ACCESS ACCESS ACCESS READ OR
TIME TIME TIME WRITE
tRAC MAX
tCAC MAX
tAA CYCLE MAX MIN
’4xx400/P-60 60 ns 15 ns 30 ns 110 ns
’4xx400/P-70 70 ns 18 ns 35 ns 130 ns
’4xx400/P-80 80 ns 20 ns 40 ns 150 ns
D Enhanced Page-Mode Operation With
CAS-Before-RAS ( CBR) Refresh
D Long Refresh Period and Self-Refresh
Option ( TMS4xx400P)
D 3-State Unlatched Output D Low Power Dissipation D High-Reliability Plastic 24 / 26-Lead
300-Mil-Wide Surface-Mount Small-Outline
J-Lead (SOJ) Package and 24 / 26-Lead
Surface-Mount Thin Small-Outline Package
( TSOP)
D Operating Free-Air Temperature Range:
0°C to 70°C
D EPIC™ (Enhanced Performance Implanted
CMOS) Technology
DJ PACKAGE ( TOP VIEW )
DGA PACKAGE ( TOP VIEW )
VCC DQ1
DQ2
W
RAS A11†
1 2 3 4 5 6
26 VSS VCC 1 25 DQ4 DQ1 2
24 DQ3 DQ2 3
23 CAS
W4
22 OE RAS 5
21 A9 A11† 6
26 VSS 25 DQ4 24 DQ3 23 CAS 22 OE
21 A9
A10 A0 A1 A2 A3
VCC
8 9 10 11 12 13
19 A8
A10 8
18 A7
A0 9
17 A6
A1 10
16 A5
A2 11
15 A4
A3 12
14 VSS...
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