256K x 18 SSRAM Synchronous Burst SRAM
Description
SSRAM
Austin Semiconductor, Inc.
256K x 18 SSRAM
Synchronous Burst SRAM, Flow-Through
FEATURES
• Fast access times: 8, 10, and 15ns • Fast clock speed: 113, 100, and 66 MHz • Fast clock and OE\ access times • Single +3.
3V +0.
3V/-0.
165V power supply (VDD) • SNOOZE MODE for reduced-power standby • Common data inputs and data outputs • Individual BYTE WRTIE control and GLOBAL WRITE • Three chip enables for simple depth expansion and address pipelining • Clock-controlled and registered addresses, data I/Os and control signals • Interally self-timed WRITE cycle • Burst control pin (interleaved or linear burst) • Automatic power-down • Low capacitive bus loading • Operating Temperature Ranges: - Military -55oC to +125oC www.
DataSheet4U.
com - Industrial -40oC to +85oC
NC NC NC V DD Q VSS NC NC DQb DQb VSS V DD Q DQb DQb VSS V DD NC VSS DQb DQb V DD Q VSS DQb DQb DQPb NC VSS V DD Q NC NC NC
AS5SS256K18
PIN ASSIGNMENT (Top View)
100-pin TQFP
SA SA CE\ CE2 NC NC bwB\ BWa\ CE2\ V DD VSS CLK GW\ BWE\ OE\ ADSC\ ADSP\ ADV\ SA SA
OPTIONS
• Timing 7.
5ns/8ns/113 MHz 8.
5ns/10ns/100 MHz 10ns/15ns/66 MHz • Packages 100-pin TQFP • Operating Temperature Ranges: - Military -55oC to +125oC - Industrial -45oC to +85oC
*available as IT only.
MARKING
-8* -9 -10 DQ IT XT No.
1001
1 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 2 79 3 78 4 77 5 76 6 75 7 74 8 73 9 72 10 71 1 1 70 12 69 13 68 14 67 15 66 16 65 17 64 18 63 19 62 20 61 21 60 22 59 23 58 24 57 25 56 26 55 27 54 28 53 29 52 30 51 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
SA NC NC V DD Q VSS NC DQPa DQa DQa VSS V DD Q DQa DQa VSS NC V DD ZZ DQa DQa V DD Q VSS DQa DQa NC NC VSS V DD Q NC NC NC
**pins 42,43 reserved for future address expansion for 8Mb, 16Mb densities.
For more products and information please visit our web site at www.
austinsemiconductor.
com GENERAL DESCRIPTION
The Austin Semiconductor, Inc.
Synchronous Burst SRAM family employs high-speed, low power CMOS designs that are fabr...
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