as7c4098a Alliance Memory, Inc, as7c4098a Datasheet

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as7c4098a

Manufacturer Part Number
as7c4098a
Description
5.0 V 256 K ? 16 Cmos Sram
Manufacturer
Alliance Memory, Inc
Datasheet

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Selection guide
February 2006
Logic block diagram
Maximum address access time
Maximum output enable access time
Maximum operating current
Maximum CMOS standby current
Features
• Pin compatible with AS7C4098
• Industrial and commercial temperature
• Organization: 262,144 words × 16 bits
• Center power and ground pins
• High speed
• Low power consumption: ACTIVE
• Low power consumption: STANDBY
• Individual byte read/write controls
2/21/06, v 1.2
- 10/12/15/20 ns address access time
- 5/6 ns output enable access time
- 990mW/max @ 10 ns
- 55mW/max CMOS
WE
UB
OE
CE
LB
I/O9–I/O16
I/O1–I/O8
A12
A13
A0
A1
A2
A3
A4
A6
A7
A8
buffer
I/O
1024 × 256 × 16
Column decoder
Control circuit
(4,194,304)
Array
Alliance Semiconductor
5.0 V 256 K × 16 CMOS SRAM
V
GND
CC
–10
180
10
10
5
Pin arrangement for SOJ and TSOP 2
• Easy memory expansion with CE, OE inputs
• TTL- and CMOS-compatible, three-state I/O
• 44-pin JEDEC standard packages
• ESD protection ≥ 2000 volts
• Latch-up current ≥ 200 mA
- 400-mil SOJ
- TSOP 2
®
160
–12
12
10
6
I/O1
I/O2
I/O3
I/O4
I/O5
I/O6
I/O7
I/O8
GND
V
WE
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
CE
CC
44-pin (400 mil) SOJ
21
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
140
–15
TSOP2
15
10
6
Copyright © Alliance Semiconductor. All rights reserved.
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A17
A16
A15
OE
UB
LB
I/O16
I/O15
I/O14
I/O13
GND
V
I/O12
I/O11
I/O10
I/O9
NC
A14
A13
A12
A11
A10
CC
–20
120
10
20
6
AS7C4098A
P. 1 of 11
Unit
mA
mA
ns
ns

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as7c4098a Summary of contents

Page 1

... JEDEC standard packages - 400-mil SOJ - TSOP 2 • ESD protection ≥ 2000 volts • Latch-up current ≥ 200 mA Pin arrangement for SOJ and TSOP GND Array – 180 10 Alliance Semiconductor AS7C4098A 44-pin (400 mil) SOJ TSOP2 A17 A16 A15 A3 ...

Page 2

... The device provides multiple center power and ground pins, and separate byte enable controls, allowing individual bytes to be written and read. LB controls the lower bits, I/O1–I/O8, and UB controls the higher bits, I/O9–I/O16. All chip inputs and outputs are TTL- and CMOS-compatible, and operation is for 5.0V (AS7C4098A) supply. The device is available in the JEDEC standard 400-mL, 44-pin SOJ, TSOP 2 packages. ...

Page 3

... Max CC ≥ V – 0.2V ≤ 0.2V Min – 0 Min – 0 Min 2.4 – NOMINAL) CC Signals A, CE, WE, OE, UB, LB I/O Alliance Semiconductor AS7C4098A Min Typical Max 4.5 5.0 5.5 2.2 – 0.5 CC –0.5 – 0.8 0 – 70 –40 – 85 –12 –15 –20 Unit Notes – 1 – 1 – 1 µ ...

Page 4

... BLZ t – 5 – 6 BHZ t 0 – 0 – – 10 – Falling input 5,6 Alliance Semiconductor AS7C4098A –15 –20 Min Max Min Max Unit Notes 15 – 20 – ns – 15 – – 15 – – 6 – – 3 – ...

Page 5

... – – 0 – – 3 – – 8 – BW Alliance Semiconductor AS7C4098A t OHZ CHZ t BHZ Data valid –15 –20 Min Max Min Max Unit 15 – 20 – – 12 – – 12 – – ...

Page 6

... Write waveform 2 (CE controlled) Address LB Data IN 2/21/06, v 1.2 ® Data undefined Alliance Semiconductor AS7C4098A Data valid t OW High Data valid ...

Page 7

... Data undefined +5.0V 480Ω D OUT 10 255Ω C GND Figure B:5.0V Output load required to meet I specification Alliance Semiconductor AS7C4098A Data valid t DH High Z Thevenin equivalent: 168Ω +1.728V D OUT ...

Page 8

... 44-pin SOJ Pin Seating b Plane 2/21/06, v 1.2 ® c 272625 0–5° Alliance Semiconductor AS7C4098A 44-pin TSOP 2 Min (mm) Max (mm) A 1.2 A 0.05 0. 0.95 1. 0.30 0.45 c 0.12 0.21 d 18.31 18.52 e 10.06 10.26 H 11.68 11. 0.80 (typical) l 0.40 0.60 44-pin SOJ 400 mils Min(mils) ...

Page 9

... Device Access SRAM prefix number time 2/21/06, v 1.2 ® AS7C4098A-12JC AS7C4098A-12JI AS7C4098A-12TC AS7C4098A-12TI : AS7C4098A - 10TCN Packages: Temperature ranges: J: SOJ 400 mil C: Commercial, 0°C to 70°C T: TSOP 2 I: Industrial, –40°C to 85°C Alliance Semiconductor AS7C4098A AS7C4098A-15JC ...

Page 10

... Revision History Rev. No. v1.0 Initial release Included & SB1 v1.1 Corrected the following: T v1.2 Removed the title “PRELIMINARY INFORMATION” 2/21/06, v 1.2 ® History parameters , & Alliance Semiconductor AS7C4098A Revised Date 11/08/04 05/27/05 02/21/ ...

Page 11

... Alliance products in such life- supporting systems implies that the manufacturer assumes all risk of such use and agrees to indemnify Alliance against all claims arising from such use. ® Copyright © Alliance Semiconductor All Rights Reserved Part Number: AS7C4098A Document Version: v 1.2 AS7C4098A ...

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