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PDF IS61LV25616AL-10K Data sheet ( Hoja de datos )
| Número de pieza | IS61LV25616AL-10K | |
| Descripción | 256K x 16 HIGH SPEED ASYNCHRONOUS CMOS STATIC RAM WITH 3.3V SUPPLY | |
| Fabricantes | Integrated Silicon Solution Inc | |
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IS61LV25616AL
256K x 16 HIGH SPEED ASYNCHRONOUS
CMOS STATIC RAM WITH 3.3V SUPPLY
ISSI®
FEBRUARY 2003
FEATURES
• High-speed access time:
— 10, 12 ns
• CMOS low power operation
• Low stand-by power:
— Less than 5 mA (typ.) CMOS stand-by
• TTL compatible interface levels
• Single 3.3V power supply
• Fully static operation: no clock or refresh
required
• Three state outputs
• Data control for upper and lower bytes
• Industrial temperature available
DESCRIPTION
The ISSI IS61LV25616AL is a high-speed, 4,194,304-bit
static RAM organized as 262,144 words by 16 bits. It is
fabricated using ISSI's high-performance CMOS technol-
ogy. This highly reliable process coupled with innovative
circuit design techniques, yields high-performance and low
power consumption devices.
When CE is HIGH (deselected), the device assumes a
standby mode at which the power dissipation can be
reduced down with CMOS input levels.
Easy memory expansion is provided by using Chip Enable
and Output Enable inputs, CE and OE. The active LOW
Write Enable (WE) controls both writing and reading of the
memory. A data byte allows Upper Byte (UB) and Lower
Byte (LB) access.
The IS61LV25616AL is packaged in the JEDEC standard
44-pin 400-mil SOJ, 44-pin TSOP Type II, 44-pin LQFP and
48-pin Mini BGA (8mm x 10mm).
FUNCTIONAL BLOCK DIAGRAM
A0-A17
DECODER
256K x 16
MEMORY ARRAY
VDD
GND
I/O0-I/O7
Lower Byte
I/O8-I/O15
Upper Byte
I/O
DATA
CIRCUIT
COLUMN I/O
CE
OE CONTROL
WE CIRCUIT
UB
LB
Copyright © 2003 Integrated Silicon Solution, Inc. All rights reserved. ISSI reserves the right to make changes to this specification and its products at any time
without notice. ISSI assumes no liability arising out of the application or use of any information, products or services described herein. Customers are advised to
obtain the latest version of this device specification before relying on any published information and before placing orders for products.
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
02/21/03
1
1 page  
IS61LV25616AL
ISSI®
POWER SUPPLY CHARACTERISTICS(1) (Over Operating Range)
Symbol Parameter
ICC VDD Dynamic Operating
Supply Current
ISB TTL Standby Current
(TTL Inputs)
ISB1 TTL Standby Current
(TTL Inputs)
ISB2 CMOS Standby
Current (CMOS Inputs)
Test Conditions
VDD = Max.,
Com.
IOUT = 0 mA, f = fMAX Ind.
VDD = Max.,
VIN = VIH or VIL
CE ≥ VIH, f = fMAX.
Com.
Ind.
VDD = Max.,
VIN = VIH or VIL
CE ≥ VIH, f = 0
Com.
Ind.
VDD = Max.,
CE ≥ VDD – 0.2V,
VIN ≥ VDD – 0.2V, or
VIN ≤ 0.2V, f = 0
Com.
Ind.
-10
Min. Max.
— 100
— 110
— 50
— 55
-12
Min. Max.
— 90
— 100
— 45
— 50
Unit
mA
mA
— 20
— 25
— 20
— 25
mA
— 15
— 20
— 15
— 20
mA
Note:
1. At f = fMAX, address and data inputs are cycling at the maximum frequency, f = 0 means no input lines change.
Shaded area product in development
CAPACITANCE(1)
Symbol
CIN
COUT
Parameter
Input Capacitance
Input/Output Capacitance
Conditions
VIN = 0V
VOUT = 0V
Max.
6
8
Unit
pF
pF
Note:
1. Tested initially and after any design or process changes that may affect these parameters.
1
2
3
4
5
6
7
8
9
10
11
12
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
02/21/03
5
5 Page 
IS61LV25616AL
ISSI®
DATA RETENTION SWITCHING CHARACTERISTICS (LL)
Symbol Parameter
Test Condition
Options
VDR
VDD for Data Retention
See Data Retention Waveform
IDR
Data Retention Current
VDD = 2.0V, CE ≥ VDD – 0.2V
Com.
Ind.
tSDR Data Retention Setup Time See Data Retention Waveform
tRDR Recovery Time
See Data Retention Waveform
Note 1: Typical values are measured at VDD = 3.0V, TA = 25OC and not 100% tested.
Min. Typ.(1) Max. Unit
2.0 — 3.6 V
— 5 10 mA
— — 15
0 — — ns
tRC — — ns
1
2
3
DATA RETENTION WAVEFORM (CE Controlled)
VDD
1.65V
1.4V
VDR
CE
GND
tSDR Data Retention Mode
CE ≥ VDD - 0.2V
tRDR
4
5
6
7
8
9
10
11
12
Integrated Silicon Solution, Inc. — www.issi.com — 1-800-379-4774
Rev. A
02/21/03
11
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| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet IS61LV25616AL-10K.PDF ] | |
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