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IC62LV2568L IC62LV2568LL
IC62LV2568L IC62LV2568LL
256K x 8 LOW POWER and LOW V++ CMOS STATIC RAM
.EATURES
Access times of 55, 70, 100 ns Low active power: 126 mW (max, L, LL) Low standby power: 36 µW (max, L) and 7.2 µW (max, LL) CMOS standby Low data retention voltage: 1.5V (min.) Available in Low Power (-L) and Ultra-Low Power (-LL) Output Enable (OE) and two Chip Enable TTL compatible inputs and outputs Single 2.7V-3.6V power supply Available in the 32-pin 8x20mm TSOP-1, 32-pin 8x13.4mm TSOP-1 and 48-pin 6*8mm T.-BGA
DESCRIPTION The 1+51 IC62LV2568L and IC62LV2568LL are low power
and low VCC, 262,144-bit words by 8 bits CMOS static RAMs. They are fabricated using 1+51's high-performance CMOS technology. This highly reliable process coupled with innovative circuit design techniques, yields higher performance and low power consumption devices. When CE1 is HIGH or CE2 is LOW (deselected), the device assumes a standby mode at which the power dissipation can be reduced by using CMOS input levels. Easy memory expansion is provided by using two Chip Enable inputs, CE1 and CE2. The active LOW Write Enable (WE) controls both writing and reading of the memory. The IC62LV2568L and IC62LV2568LL are available in 32-pin 8*20mm TSOP-1, 8*13.4mm TSOP-1 and 48-pin 6*8mm T.BGA.
.UNCTIONAL BLOCK DIAGRAM
A0-A17
DECODER
2048 x 128 x 8 MEMORY ARRAY
VCC GND I/O DATA CIRCUIT
I/O0-I/O7
COLUMN I/O
CE1 CE2 OE WE
CONTROL CIRCUIT
ICSI reserves the right to make changes to its products at any time without notice in order to improve design and supply the best possible product. We assume no responsibility for any errors which may appear in this publication. © Copyright 2000, Integrated Circuit Solution Inc.
Integrated Circuit Solution Inc.
LPSR001-0A 05/01/2001
1
IC62LV2568L IC62LV2568LL
PIN CON.IGURATIONS
32-Pin 8*20mm TSOP-1, 8*13.4mm STSOP-1
A11 A9 A8 A13 WE CE2 A15 Vcc A17 A16 A14 A12 A7 A6 A5 A4 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 OE A10 CE1 I/O7 I/O6 I/O5 I/O4 I/O3 GND I/O2 I/O1 I/O0 A0 A1 A2 A3
48-Pin 6*8mm T.-BGA
1 A B C D E F G H
A0 I/O4 I/O5 GND Vcc I/O6 I/O7 A9
2
A1 A2
3
CE2 WE NC
4
A3 A4 A5
5
A6 A7
6
A8 I/O0 I/O1 Vcc GND
NC OE A10 CE1 A11
A17 A16 A12 A15 A13
I/O2 I/O3 A14
PIN DESCRIPTIONS
A0-A17 CE1 CE2 OE WE I/O0-I/O7 NC Vcc GND Address Inputs Chip Enable 1 Input Chip Enable 2 Input Output Enable Input Write Enable Input Data Input/Output No Connection Power Ground
OPERATING RANGE
Range Commercial Industrial Ambient Temperature 0°C to +70°C 40°C to +85°C VCC 2.7V - 3.6V 2.7V - 3.6V
2
Integrated Circuit Solution Inc.
LPSR001-0A 05/01/2001
IC62LV2568L IC62LV2568LL
TRUTH TABLE
Mode Not Selected (Power-down) Output Disabled Read Write WE X X H H L CE1 H X L L L CE2 X L H H H OE X X H L X I/O Operation High-Z High-Z High-Z DOUT DIN Vcc Current ISB, ISB ISB, ISB ICC ICC ICC
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM VCC TBIAS TSTG PT Parameter Term.
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