AS7C34098B
Revision History
AS7C34098B
Revision
Rev 1.0
Rev 2.0
Confidential
Details
Initial Issue
Add TFBGA package
Date
Aug. 2016
June. 2017
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Rev.2.0. June 2017
AS7C34098B
256K X 16 BIT HIGH SPEED CMOS SRAM
FEATURES
GENERAL DESCRIPTION
n Fast access time : 10ns n
Low power consumption:
Operating current:
40mA (TYP.)
Standby current:
2mA (TYP.)
n Single 3.3V power supply
n All inputs and outputs TTL compatible
n Fully static operation
n Tri-state output
n Data byte control : LB# (DQ0 ~ DQ7)
UB# (DQ8 ~ DQ15)
n Data retention voltage : 1.5V (MIN.)
n ROHS compliant
n Package : 44-pin 400mil TSOP II
48-ball 6mm x 8mm TFBGA
The AS7C34098B is a 4,194,304-bit high speed
CMOS static random access memory organized as
262,144 words by 16 bits. It is fabricated using very
high performance, high reliability CMOS technology.
Its standby current is stable within the range of
operating temperature.
Table 1. Ordering Information
Part Number
Speed
The AS7C34098B operates from a single power
supply of 3.3V and all inputs and outputs are fully
TTL compatible
Temperature
Vcc Range
Package
AS7C34098B-10TIN*
10ns
Industrial -40°C to +85°C
2.7 ~ 3.6V
44pin TSOPII
AS7C34098B-10BIN*
10ns
Industrial -40°C to +85°C
2.7 ~ 3.6V
48-ball TFBGA
* : indicates Tray and add TR =Tape Reel packing type
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Rev.2.0. June 2017
AS7C34098B
FUNCTIONAL BLOCK DIAGRAM
Vcc
Vss
A0-A17
DQ0-DQ7
Lower Byte
DQ8-DQ15
Upper Byte
CE#
WE#
OE#
LB#
UB#
DECODER
I/O DATA
CIRCUIT
256Kx16
MEMORY ARRAY
COLUMN I/O
SYMBOL
DESCRIPTION
A0 - A17
Address Inputs
DQ0 - DQ15
Data Inputs/Outputs
CE#
Chip Enable Inputs
WE#
Write Enable Input
OE#
Output Enable Input
LB#
Lower Byte Control
UB#
Upper Byte Control
VCC
Power Supply
VSS
Ground
NC
No Connection
CONTROL
CIRCUIT
PIN DESCRIPTION
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AS7C34098B
PIN CONFIGURATION
A0
1
44
A17
A1
2
43
A16
A2
3
42
A15
A3
4
41
OE#
5
40
UB#
6
39
LB#
DQ0
7
38
DQ15
DQ1
8
37
DQ14
36
DQ13
35
DQ12
34
Vss
33
Vcc
32
DQ11
31
DQ10
30
DQ9
29
DQ8
28
NC
27
A14
AS7C34098B-10TIN
XXXXXXXX
XXXXXXXX
A4
CE#
DQ2
9
DQ3
10
Vcc
11
Vss
12
DQ4
13
DQ5
14
DQ6
15
DQ7
16
WE#
17
A5
18
A6
19
A7
20
A8
21
24
A11
A9
22
23
A10
26
A13
25
A12
TSOP II
A
LB# OE#
A0
A1
B
DQ8 UB#
A3
A4
CE# DQ0
C
DQ9 DQ10 A5
A6
DQ1 DQ2
D
Vss DQ11 A17
A7
DQ3 Vcc
E
Vcc DQ12 NC
A16 DQ4 Vss
F
DQ14 DQ13 A14
A15 DQ5 DQ6
G
DQ15 NC
NC
A8
NC
A12
A13 WE# DQ7
A9
A10
A11
NC
1
2
3
4
5
6
TFBGA(See through with Top View)
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AS7C34098B-10BIN
XXXXXXXX
XXXXXXXX
H
A2
TFBGA (Top View)
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AS7C34098B
ABSOLUTE MAXIMUM RATINGS*
PARAMETER
Voltage on VCC relative to VSS
Voltage on any other pin relative to VSS
Operating Temperature
Storage Temperature
Power Dissipation
DC Output Current
SYMBOL
VT1
VT2
RATING
-0.5 to 4.6
-0.5 to VCC+0.5
UNIT
V
V
TA
-40 to 85
℃
TSTG
PD
IOUT
-65 to 150
1
50
℃
W
mA
*Stresses 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 or any other conditions above those indicated in the operational sections of this specification is
not implied. Exposure to the absolute maximum rating conditions for extended period may affect device reliability.
TRUTH TABLE
MODE
Standby
Output Disable
Read
Write
Note:
CE#
OE#
H
L
L
L
L
L
L
L
L
X
H
X
L
L
L
X
X
X
WE# LB#
X
H
X
H
H
H
L
L
L
X
X
H
L
H
L
L
H
L
UB#
X
X
H
H
L
L
H
L
L
I/O OPERATION
DQ0 - DQ7 DQ8 - DQ15
High-Z
High-Z
High-Z
High-Z
High-Z
High-Z
DOUT
High-Z
High-Z
DOUT
DOUT
DOUT
DIN
High-Z
High-Z
DIN
DIN
DIN
SUPPLY CURRENT
ISB,ISB1
ICC,ICC1
ICC,ICC1
ICC,ICC1
H = VIH, L = VIL, X = Don't care
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AS7C34098B
DC ELECTRICAL CHARACTERISTICS
PARAMETER
SYMBOL
Supply Voltage
VCC
Input High Voltage
Input Low Voltage
Input Leakage Current
Output Leakage
Current
Output High Voltage
Output Low Voltage
VIH
*2
VIL
ILI
MIN.
*1
ILO
VOH
VOL
ICC
Average Operating
Power supply Current
ICC1
Standby Power
Supply Current
TEST CONDITION
ISB
ISB1
VCC ≧ VIN ≧ VSS
VCC ≧ VOUT ≧ VSS,
Output Disabled
IOH = -4mA
IOL = 8mA
Cycle time = MIN.
CE# = VIL, II/O = 0mA,
Others at VIL or VIH
CE# ≦ 0.2,
Others at 0.2V or VCC-0.2V
II/O = 0mA; f=MAX.
CE# =VIH, Others at VIL or VIH
CE# ≧ VCC - 0.2V,
Others at 0.2V or VCC - 0.2V
TYP.
*4
MAX.
UNIT
2.7
3.3
3.6
V
2.2
- 0.3
-1
-
VCC+0.3
0.8
1
V
V
µA
-1
-
1
µA
2.4
-
-
0.4
V
V
-
50
70
mA
-
40
55
mA
-
-
30
mA
-
2
10
mA
Notes:
1. VIH(max) = VCC + 2.0V for pulse width less than 6ns.
2. VIL(min) = VSS - 2.0V for pulse width less than 6ns.
3. Over/Undershoot specifications are characterized on engineering evaluation stage, not for mass production test.
4. Typical values are included for reference only and are not guaranteed or tested.
Typical valued are measured at VCC = VCC(TYP.) and TA = 25℃
CAPACITANCE (TA = 25℃, f = 1.0MHz)
PARAMETER
Input Capacitance
Input/Output Capacitance
SYMBOL
CIN
CI/O
MIN.
-
MAX.
8
10
UNIT
pF
pF
Note : These parameters are guaranteed by device characterization, but not production tested.
AC TEST CONDITIONS
Speed
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Reference Levels
Output Load
Confidential
10ns
0.2V to VCC - 0.2V
3ns
1.5V
CL = 30pF + 1TTL, IOH/IOL = -4mA/8mA
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AS7C34098B
AC ELECTRICAL CHARACTERISTICS
(1) READ CYCLE
PARAMETER
Read Cycle Time
Address Access Time
Chip Enable Access Time
Output Enable Access Time
Chip Enable to Output in Low-Z
Output Enable to Output in Low-Z
Chip Disable to Output in High-Z
Output Disable to Output in High-Z
Output Hold from Address Change
LB#, UB# Access Time
LB#, UB# to High-Z Output
LB#, UB# to Low-Z Output
SYM.
tRC
tAA
tACE
tOE
tCLZ*
tOLZ*
tCHZ*
tOHZ*
tOH
tBA
tBHZ*
tBLZ*
AS7C34098B-10
MIN.
MAX.
10
10
10
4.5
2
0
4
4
2
4.5
4
0
-
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(2) WRITE CYCLE
PARAMETER
Write Cycle Time
Address Valid to End of Write
Chip Enable to End of Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Data to Write Time Overlap
Data Hold from End of Write Time
Output Active from End of Write
Write to Output in High-Z
LB#, UB# Valid to End of Write
SYM.
tWC
tAW
tCW
tAS
tWP
tWR
tDW
tDH
tOW*
tWHZ*
tBW
AS7C34098B-10
MIN.
MAX.
10
8
8
0
8
0
6
0
2
4
8
-
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
*These parameters are guaranteed by device characterization, but not production tested.
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AS7C34098B
TIMING WAVEFORMS
READ CYCLE 1 (Address Controlled) (1,2)
tRC
Address
tAA
Dout
tOH
Previous Data Valid
Data Valid
READ CYCLE 2 (CE# and OE# Controlled) (1,3,4,5)
tRC
Address
tAA
CE#
tACE
LB#,UB#
tBA
OE#
tOE
tOH
tOHZ
tBHZ
tCHZ
tOLZ
tBLZ
tCLZ
Dout
High-Z
Data Valid
High-Z
Notes :
1.WE# is high for read cycle.
2.Device is continuously selected OE# = low, CE# = low, LB# or UB# = low.
3.Address must be valid prior to or coincident with CE# = low, LB# or UB# = low transition; otherwise tAA is the limiting parameter.
4.tCLZ, tBLZ, tOLZ, tCHZ, tBHZ and tOHZ are specified with CL = 5pF. Transition is measured ±500mV from steady state.
5.At any given temperature and voltage condition, tCHZ is less than tCLZ , tBHZ is less than tBLZ, tOHZ is less than tOLZ
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AS7C34098B
WRITE CYCLE 1 (WE# Controlled) (1,2,4,5)
tWC
Address
tAW
CE#
tCW
tBW
LB#,UB#
tAS
tWP
tWR
WE#
tWHZ
Dout
tOW
High-Z
(4)
tDW
Din
(4)
tDH
Data Valid
WRITE CYCLE 2 (CE# Controlled) (1,4,5)
tWC
Address
tAW
CE#
tAS
tWR
tCW
tBW
LB#,UB#
tWP
WE#
tWHZ
Dout
High-Z
(4)
tDW
Data Valid
Din
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tDH
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AS7C34098B
WRITE CYCLE 3 (LB#,UB# Controlled) (1,4,5)
tWC
Address
tAW
tWR
CE#
tAS
tCW
tBW
LB#,UB#
tWP
WE#
tWHZ
Dout
High-Z
(4)
tDW
tDH
Data Valid
Din
Notes :
1.A write occurs during the overlap of a low CE#, low WE#, LB# or UB# = low.
2.During a WE# controlled write cycle with OE# low, tWP must be greater than tWHZ + tDW to allow the drivers to turn off and data to be placed
on the bus.
3.During this period, I/O pins are in the output state, and input signals must not be applied.
4.If the CE#, LB#, UB# low transition occurs simultaneously with or after WE# low transition, the outputs remain in a high impedance state.
5.tOW and tWHZ are specified with CL = 5pF. Transition is measured ±500mV from steady state.
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AS7C34098B
DATA RETENTION CHARACTERISTICS
PARAMETER
VCC for Data Retention
Data Retention Current
SYMBOL
TEST CONDITION
VDR
CE# ≧ VCC - 0.2V
VCC = 1.5V, CE# ≧ VCC - 0.2V
IDR
Others at 0.2V or VCC – 0.2V
Chip Disable to Data
Retention Time
Recovery Time
tRC* = Read Cycle Time
tCDR
MIN.
1.5
See Data Retention Waveforms (below)
tR
TYP. MAX. UNIT
3.6
V
-
2
10
mA
0
-
-
ns
tRC*
-
-
ns
DATA RETENTION WAVEFORM
VDR ≥ 1.5V
Vcc
Vcc(min.)
Vcc(min.)
tCDR
CE#
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VIH
tR
CE# ≥ Vcc-0.2V
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VIH
Rev.2.0. June 2017
AS7C34098B
PACKAGE OUTLINE DIMENSION
44-pin 400 mil TSOP Ⅱ Package Outline Dimension
SYMBOLS
A
A1
A2
b
c
D
E
E1
e
L
ZD
y
Θ
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DIMENSIONS IN MILLMETERS
MIN.
NOM.
MAX.
1.20
0.05
0.10
0.15
0.95
1.00
1.05
0.30
0.45
0.12
0.21
18.212
18.415
18.618
11.506
11.760
12.014
9.957
10.160
10.363
0.800
0.40
0.50
0.60
0.805
0.076
o
o
o
0
3
6
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DIMENSIONS IN MILS
MIN.
NOM.
MAX.
47.2
2.0
3.9
5.9
37.4
39.4
41.3
11.8
17.7
4.7
8.3
717
725
733
453
463
473
392
400
408
31.5
15.7
19.7
23.6
31.7
3
o
o
o
0
3
6
Rev.2.0. June 2017
AS7C34098B
48-ball 6mm × 8mm TFBGA Package Outline Dimension
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AS7C34098B
ORDERING INFORMATION
(Speed/ns)
Temperature
Range(℃)
44-pin (400mil)
TSOP II
10
-40℃~85℃
48-ball
(6mm x 8mm)
TFBGA
10
-40℃~85℃
Package Type
Access Time
Packing
Type
Tray
Tape Reel
Tray
Tape Reel
Alliance Memory Part Number
AS7C34098B-10TIN
AS7C34098B-10TINTR
AS7C34098B-10BIN
AS7C34098B-10BINTR
Alliance Memory, Inc.
511 Taylor Way,
San Carlos, CA 94070
Tel: 650-610-6800
Fax: 650-620-9211
www.alliancememory.com
Copyright © Alliance Memory
All Rights Reserved
© Copyright 2007 Alliance Memory, Inc. All rights reserved. Our three-point logo, our name and Intelliwatt are
trademarks or registered trademarks of Alliance. All other brand and product names may be the trademarks of their
respective companies. Alliance reserves the right to make changes to this document and its products at any time
without notice. Alliance assumes no responsibility for any errors that may appear in this document. The data
contained herein represents Alliance's best data and/or estimates at the time of issuance. Alliance reserves the right
to change or correct this data at any time, without notice. If the product described herein is under development,
significant changes to these specifications are possible. The information in this product data sheet is intended to be
general descriptive information for potential customers and users, and is not intended to operate as, or provide, any
guarantee or warrantee to any user or customer. Alliance does not assume any responsibility or liability arising out of
the application or use of any product described herein, and disclaims any express or implied warranties related to the
sale and/or use of Alliance products including liability or warranties related to fitness for a particular purpose,
merchantability, or infringement of any intellectual property rights, except as express agreed to in Alliance's Terms
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Rev.2.0. June 2017