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Part: IS62LV2568L-100BI
Category:
Memory
-> SRAM
-> Async. SRAM
Description: 100ns; 2.7-3.6V; 256K X 8 Low-power And Low VCC CMOS Static RAM
Company: Integrated Circuit Solution
Datasheet: Download IS62LV2568L-100BI datasheet File size : 104 kB
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Datasheet text preview:
IS62LV2568L IS62LV2568LL
IS62LV2568L IS62LV2568LL
256K x 8 LOW POWER and LOW V++ CMOS STATIC RAM
FEATURES
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 TF-BGA
DESCRIPTION The 1+51 IS62LV2568L and IS62LV2568LL 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 IS62LV2568L and IS62LV2568LL are available in 32-pin 8*20mm TSOP-1, 8*13.4mm TSOP-1 and 48-pin 6*8mm TFBGA.
FUNCTIONAL 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.
SR025_0C
1
IS62LV2568L IS62LV2568LL
PIN CONFIGURATIONS
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 TF-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 VC C 2.7V - 3.6V 2.7V - 3.6V
2
Integrated Circuit Solution Inc.
SR025_0C
IS62LV2568L IS62LV2568LL
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 DI N Vcc Current ISB, ISB ISB, ISB ICC ICC ICC
ABSOLUTE MAXIMUM RATINGS(1)
Symbol VTERM VCC TBIAS TSTG PT Parameter Terminal Voltage with Respect to GND Vcc related to GND Temperature Under Bias Storage Temperature Power Dissipation Value 0.5 to Vcc + 0.5 0.3 to +4.0 40 to +85 65 to +150 0.7 Unit V V °C °C W
Notes: 1. Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect reliability.
C A P A C I T A N C E( 1 )
Symbol CIN COUT Parameter Input Capacitance Output Capacitance Conditions VIN = 0V VOUT = 0V Max. 6 8 Unit pF pF
Notes: 1. Tested initially and after any design or process changes that may affect these parameters.
DC ELECTRICAL CHARACTERISTICS (Over Operating Range)
Symbol VOH VOL VIH VIL(1) ILI ILO Parameter Output HIGH Voltage Output LOW Voltage Input HIGH Voltage Input LOW Voltage(1) Input Leakage Output Leakage Test Conditions VCC = Min., IOH = 1.0 mA VCC = Min., IOL = 2.1 mA Min. 2.2 2.2 0.3 1 1 Max. 0.4 VCC + 0.3 0.4 1 1 Unit V V V V µA µA
GND VIN VCC GND VOUT VCC
Notes: 1. VIL = 2.0V for pulse width less than 10 ns.
Integrated Circuit Solution Inc.
SR025_0C
3
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