AS6WA25616-TI Alliance Semiconductor, AS6WA25616-TI Datasheet

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AS6WA25616-TI

Manufacturer Part Number
AS6WA25616-TI
Description
3.0V to 3.6V 256K x 16 Intelliwatt low-power CMOS SRAM with one chip enable
Manufacturer
Alliance Semiconductor
Datasheet
Features
• AS6WA25616
• Intelliwatt™ active power circuitry
• Industrial and commercial temperature ranges available
• Organization: 262,144 words × 16 bits
• 3.0V to 3.6V at 55 ns
• Low power consumption: ACTIVE
• Low power consumption: STANDBY
Logic block diagram
Selection guide
October 2000
AS6WA25616
- 144 mW at 3.6V and 55 ns
- 72 µW max at 3.6V
10/6/00
WE
UB
OE
LB
CS
Product
I/O9–I/O16
I/O1–I/O8
3.0V to 3.6V 256K×16 Intelliwatt™ low-power CMOS SRAM with one chip enable
A12
A13
A0
A1
A2
A3
A4
A6
A7
A8
buffer
I/O
Min
(V)
3.0
V
Column decoder
ALLIANCE SEMICONDUCTOR
Control circuit
CC
(4,194,304)
256K × 16
Typ
(V)
3.3
Range
Array
2
V
V
CC
SS
Max
(V)
3.6
• 1.2V data retention
• Equal access and cycle times
• Easy memory expansion with CS, OE inputs
• Smallest footprint packages
• ESD protection 2000 volts
• Latch-up current
Pin arrangement (top view)
- 48-ball FBGA
- 400-mil 44-pin TSOP II
®
Speed
(ns)
55
A
B
C
D
E
G
H
F
I/O10 I/O11
I/O15 I/O14 A14
I/O16
I/O9
V
V
LB
NC
1
CC
SS
48-CSP Ball-Grid-Array Package
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
A17
A16
A15
A14
A13
V
WE
V
A4
A3
A2
A1
A0
CS
Operating (I
CC
SS
44-pin 400-mil TSOP II
I/O12 A17
I/O13
UB
NC
OE
Max (mA)
A8
200 mA
2
Copyright ©2000 Alliance Semiconductor. All rights reserved.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
2
A12
NC
A0
A3
A5
A9
Power Dissipation
3
CC
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
)
A15
A13
A10
A16
A1
A4
A6
A7
4
A5
A6
A7
OE
UB
LB
I/O16
I/O15
I/O14
I/O13
V
V
I/O12
I/O11
I/O10
I/O9
NC
A8
A9
A10
A11
A12
AS6WA25616
SS
CC
I/O2
I/O4
I/O5
I/O6
Standby (I
A11
WE
A2
CS
5
Max ( A)
20
1
I/O1
I/O3
V
I/O7
I/O8
V
NC
NC
6
CC
SS
SB1
)

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AS6WA25616-TI Summary of contents

Page 1

... October 2000 3.0V to 3.6V 256K×16 Intelliwatt™ low-power CMOS SRAM with one chip enable Features • AS6WA25616 • Intelliwatt™ active power circuitry • Industrial and commercial temperature ranges available • Organization: 262,144 words × 16 bits • 3. • Low power consumption: ACTIVE - 144 mW at 3.6V and 55 ns • ...

Page 2

... AA permit easy memory expansion with multiple-bank memory systems. When CS is high and LB are high, the device enters standby mode: the AS6WA25616 is guaranteed not to exceed 72 W power consumption at 3.6V and 55 ns. The device also returns data when V A write cycle is accomplished by asserting write enable (WE) and chip select (CS) low, and UB and/or LB low. Data on the input pins I/O1– ...

Page 3

... > V – 0.2V other inputs = 0V – Max CS > V – 0.1V – 0. NOMINAL) CC Symbol Signals C A, CS, WE, OE, LB I/O I/O ALLIANCE SEMICONDUCTOR AS6WA25616 Min Max = 3.0V 2.4 = 3.0V 0.4 = 3. 3.0V –0.5 0.8 –1 +1 – 3. 3. 3.6V 100 = 3. 1. Test conditions ...

Page 4

... AS6WA25616 Read cycle (over the operating range) Parameter Read cycle time Address access time Chip select (CS) access time Output enable (OE) access time Output hold from address change CS low to output in low Z CS high to output in high Z OE low to output in low Z UB/LB access time UB/LB low to low Z ...

Page 5

... BW 10, Data undefined 10, Data undefined ALLIANCE SEMICONDUCTOR AS6WA25616 Max Unit Notes – ns – ns – ns – ns – ns – ns – ns – – ns – Data valid t OW ...

Page 6

... AS6WA25616 Data retention characteristics (over the operating range) Parameter V for data retention CC Data retention current Chip deselect to data retention time Operation recovery time Data retention waveform test loads and waveforms OUTPUT INCLUDING JIG AND (a) SCOPE Parameters V = 3.0V CC ...

Page 7

... 0.5 0.25 0.0 3.7 1.7 2.2 2.7 3.2 Supply Voltage ( 0–5° ALLIANCE SEMICONDUCTOR AS6WA25616 Normalized standby current vs. ambient temperature 3.0 2 typ typ IN CC 1.5 1.0 0.5 0.0 – 0.5 3.7 – Ambient temperature (°C) Normalized I CC vs. Cycle Time 1 ...

Page 8

... AS6WA25616 Bottom View Side View Minimum A – B 6.90 B1 – C 10.90 C1 – D 0.30 E – E1 – E2 0.22 Y – 8 ® 48-ball FBGA 1 Ball # Die Typical Maximum 0.75 – Notes 7.00 7.10 1. Bump counts row × 6 column). ...

Page 9

... Alliance products in such life-supporting systems implies that the manufacturer assumes all risk of such use and agrees to indem nify Alliance against all claims arising from such use. ® Ordering Code Package Type 44-pin TSOP II 48-ball fine pitch BGA AS6WA25616-TI 44-pin TSOP II 48-ball fine pitch BGA T, B Package: T: TSOP II ...

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