AUSTIN MT5C6401C

SRAM
MT5C6401
Austin Semiconductor, Inc.
64K x 1 SRAM
PIN ASSIGNMENT
(Top View)
SRAM MEMORY ARRAY
22-Pin DIP (C)
(300 MIL)
AVAILABLE AS MILITARY
SPECIFICATIONS
•
•
A0
A1
A2
A3
A4
A5
A6
A7
Q
WE\
Vss
SMD 5962-86015
MIL-STD-883
FEATURES
• Speeds: 12, 15, 20, 25, 35, 45, 55, and 70ns
• Battery Backup: 2V data retention
• High-performance, low-power CMOS double-metal
process
• Single +5V (+10%) Power Supply
• Easy memory expansion with CE\
• All inputs and outputs are TTL compatible
OPTIONS
MARKING
• Timing
12ns access
15ns access
20ns access
25ns access
35ns access
45ns access
55ns access
70ns access
-12
-15
-20
-25
-35
-45*
-55*
-70*
• Package(s)
Ceramic DIP (300 mil)
C
Vcc
A15
A14
A13
A12
A11
A10
A9
A8
D
CE\
The Austin Semiconductor SRAM family employs
high-speed, low-power CMOS designs using a four-transistor
memory cell. Austin Semiconductor SRAMs are fabricated
using double-layer metal, double-layer polysilicon
technology.
For flexibility in high-speed memory applications, Austin
Semiconductor offers chip enable (CE\) on all organizations.
This enhancement can place the outputs in High-Z for
additional flexibility in system design. The X1 configuration
features separate data input and output.
Writing to these devices is accomplished when write
enable (WE\) and CE\ inputs are both LOW. Reading is
accomplished when WE\ remains HIGH and CE\ goes LOW.
The device offers a reduced power standby mode when
disabled. This allows system designs to achieve low standby
power requirements.
All devices operate from a single +5V power supply and
all inputs and outputs are fully TTL compatible.
No. 105
L
For more products and information
please visit our web site at
www.austinsemiconductor.com
*Electrical characteristics identical to those provided for the 35ns
access devices.
MT5C6401
Rev. 1.0 8/01
22
21
20
19
18
17
16
15
14
13
12
GENERAL DESCRIPTION
• Operating Temperature Ranges
Industrial (-40oC to +85oC)
IT
Military (-55oC to +125oC)
XT
• 2V data retention/low power
1
2
3
4
5
6
7
8
9
10
11
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
1
SRAM
MT5C6401
Austin Semiconductor, Inc.
FUNCTIONAL BLOCK DIAGRAM
VCC
GND
A
D
A
A
A
I/O CONTROL
A
ROW DECODER
A
65,536-BIT
MEMORY ARRAY
Q
CE\
A
(LSB)
WE\
POWER
DOWN
COLUMN DECODER
(LSB)
A A A A A A A A A
TRUTH TABLE
MODE
STANDBY
READ
WRITE
MT5C6401
Rev. 1.0 8/01
CE\
H
L
L
WE\
X
H
L
DQ
HIGH-Z
Q
HIGH-Z
POWER
STANDBY
ACTIVE
ACTIVE
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
2
SRAM
MT5C6401
Austin Semiconductor, Inc.
ABSOLUTE MAXIMUM RATINGS*
Voltage on any Input Relative to Vss................-2.0V to +7.0V
Voltage on Vcc Supply Relative to Vss............-1.0V to +7.0V
Voltage Applied to Q.........................................-1.0V to +7.0V
Storage Temperature…...................................-65oC to +150oC
Power Dissipation.................................................................1W
Max Junction Temperature............................................+175°C
Lead Temperature (soldering 10 seconds)...................+260oC
Short Circuit Output Current...........................................50mA
*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 at
these or any other conditions above those indicated in the
operation section of this specification is not implied. Exposure
to absolute maximum rating conditions for extended periods
may affect reliability.
ELECTRICAL CHARACTERISTICS AND RECOMMENDED DC OPERATING CONDITIONS
(-55oC < TC < 125oC; VCC = 5V +10%)
DESCRIPTION
Input High (Logic 1) Voltage
CONDITIONS
SYM
VIH
MIN
2.2
VIL
-0.5
0.8
V
0V < VIN < VCC
ILI
-10
10
µA
Outputs Disabled
0V < VOUT < VCC
ILO
-10
10
µA
Output High Voltage
IOH = -4.0mA
VOH
2.4
---
V
1
Output Low Voltage
IOL = 8.0mA
VOL
---
0.4
V
1
Input Low (Logic 0) Voltage
Input Leakage Current
Output Leakage Current
MAX
UNITS NOTES
Vcc+1.0V
V
1
1, 2
CONDITIONS
SYM
-12
-15
MAX
-20
-25
-35
Power Supply
Current: Operating
CE\ < VIL; VCC = MAX
Output Open
Icc
140
125
110
100
90
mA
Power Supply
Current: Standby
CE\ > VIH; VCC = MAX
ISBT1
45
41
36
33
30
mA
ISBT2
25
25
25
25
25
mA
ISBC2
5
5
5
5
5
mA
SYM
MAX
UNITS
NOTES
CI
6
pF
4
CO
7
pF
4
PARAMETER
f = 1/tRC (MIN) Hz
UNITS NOTES
3
CE\ > VIH; All Other Inputs
< VIL or > VIH, VCC = MAX
f = 0 Hz
CE\ > (VCC -0.2); VCC = MAX
All Other Inputs < 0.2V
or > (VCC - 0.2V), f = 0 Hz
CAPACITANCE
DESCRIPTION
Input Capacitance
Output Capacitance
MT5C6401
Rev. 1.0 8/01
CONDITIONS
o
TA = 25 C, f = 1MHz
Vcc = 5V
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
3
SRAM
MT5C6401
Austin Semiconductor, Inc.
ELECTRICAL CHARACTERISTICS AND RECOMMENDED AC OPERATING CONDITIONS
(Note 5) (-55oC < TC < 125oC; VCC = 5V +10%)
DESCRIPTION
READ CYCLE
READ cycle time
Address access time
Chip Enable access time
Output hold from address change
Chip Enable to output in Low-Z
Chip disable to output in High-Z
Chip Enable to power-up time
Chip disable to power-down time
WRITE CYCLE
WRITE cycle time
Chip Enable to end of write
Address valid to end of write
Address setup time
Address hold from end of write
WRITE pulse width
Data setup time
Data hold time
Write disable to output in Low-Z
Write Enable to output in High-Z
MT5C6401
Rev. 1.0 8/01
-12
-15
-20
-25
-35
SYMBOL MIN MAX MIN MAX MIN MAX MIN MAX MIN MAX UNITS NOTES
tRC
tAA
tACE
tOH
tLZCE
tHZCE
tPU
tPD
12
tWC
tCW
tAW
tAS
tAH
tWP
tDS
tDH
12
10
10
0
0
10
7
0
2
0
tLZWE
tHZWE
15
12
10
2
2
20
15
13
2
2
7
0
2
2
8
0
12
6
2
2
0
7
8
15
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
2
2
0
15
0
25
25
20
20
0
0
20
12
0
2
0
35
ns
ns
ns
ns
ns
ns
ns
ns
35
25
12
20
20
15
15
0
0
15
10
0
2
0
35
25
20
10
15
15
12
12
0
0
12
8
0
2
0
25
20
15
10
35
25
25
0
0
25
15
0
2
0
7
6, 7
7
6, 7
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
4
SRAM
MT5C6401
Austin Semiconductor, Inc.
+5V
AC TEST CONDITIONS
+5V
480
Input pulse levels ...................................... Vss to 3.0V
Input rise and fall times ......................................... 5ns
Input timing reference levels ................................ 1.5V
Output reference levels ....................................... 1.5V
Output load ................................. See Figures 1 and 2
480
Q
Q
30pF
255
Fig. 1 Output Load
Equivalent
NOTES
5 pF
255
Fig. 2 Output Load
Equivalent
7.
At any given temperature and voltage condition,
tHZCE is less than tLZCE, and tHZWE is less than tLZWE.
8. WE\ is HIGH for READ cycle.
9. Device is continuously selected. Chip enable is held in
its active state.
10. Address valid prior to, or coincident with, latest
occurring chip enable.
11. tRC = READ Cycle Time.
12. Chip enable (CE\) and write enable (WE\) can initiate
and terminate a WRITE cycle.
1.
2.
3.
All voltages referenced to VSS (GND).
-3V for pulse width < 20ns
ICC is dependent on output loading and cycle rates.
The specified value applies with the outputs
unloaded, and f =
1
Hz.
t
RC (MIN)
4. This parameter is sampled.
5. Test conditions as specified with the output loading
as shown in Fig. 1 unless otherwise noted.
6. tHZCE and tHZWE are specified with CL = 5pF as in
Fig. 2. Transition is measured ±500mV typical from steady
state voltage, allowing for actual tester RC time constant.
DATA RETENTION ELECTRICAL CHARACTERISTICS (L Version Only)
DESCRIPTION
CONDITIONS
VCC for Retention Data
Data Retention Current
SYM
MIN
MAX
UNITS
VDR
2
---
V
NOTES
CE\ > (VCC - 0.2V)
VCC = 2V
ICCDR
---
300
µA
VIN > (VCC - 0.2V)
or < 0.2V
VCC = 3V
ICCDR
---
500
µA
tCDR
0
---
ns
4
tR
tRC
---
ns
4, 11
Chip Deselect to Data
Retention Time
Operation Recovery Time
LOW Vcc DATA RETENTION WAVEFORM
DATA RETENTION MODE
VCC
4.5V
VDR > 2V
t CDR
CE\
VIH
VIL
1234
123456789
123
123456789
123
1234
123456789
123
1234
123456789
123
1234
4.5V
tR
VDR
12345678
1234
123
12345678
1234
123
12345678
1234
123
12345678
1234
123
123
123
123
123 DON’T CARE
1234
1234
1234
1234UNDEFINED
MT5C6401
Rev. 1.0 8/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
5
SRAM
Austin Semiconductor, Inc.
MT5C6401
READ CYCLE NO. 1 8, 9
READ CYCLE NO. 2 7, 8, 10
Q
123
123
123DON’T CARE
12345
12345
12345
UNDEFINED
12345
12345
MT5C6401
Rev. 1.0 8/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
6
SRAM
Austin Semiconductor, Inc.
MT5C6401
WRITE CYCLE NO. 1 12
(Chip Enabled Controlled)
WRITE CYCLE NO. 2 7, 12, 13
(Write Enabled Controlled)
123
123
123
123 DON’T CARE
1234
1234
1234
1234 UNDEFINED
MT5C6401
Rev. 1.0 8/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
7
SRAM
MT5C6401
Austin Semiconductor, Inc.
MECHANICAL DEFINITIONS*
ASI Case #105 (Package Designator C)
SMD 5962-86015, Case Outline X
S
D
S2
A
Q
L1
E
L
S1
b1
e
b
Pin 1
E1
c
SYMBOL
A
b
b1
c
D
E
E1
e
L
L1
Q
S
S1
S2
SMD SPECIFICATIONS
MIN
MAX
--0.200
0.014
0.023
0.030
0.065
0.008
0.015
--1.260
0.220
0.310
0.290
0.320
0.100 BSC
0.125
0.200
0.150
--0.015
0.060
--0.080
0.005
--0.005
---
NOTE: These dimensions are per the SMD. ASI's package dimensional limits may
differ, but they will be within the SMD limits.
* All measurements are in inches.
MT5C6401
Rev. 1.0 8/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
8
SRAM
MT5C6401
Austin Semiconductor, Inc.
ORDERING INFORMATION
EXAMPLE: MT5C6401C-45L/883C
Device Number
Package Speed
Options** Process
Type
ns
MT5C6401
C
-12
L
/*
MT5C6401
MT5C6401
C
-15
L
/*
C
-20
L
/*
MT5C6401
C
-25
L
/*
MT5C6401
C
-35
L
/*
MT5C6401
C
-45
L
/*
MT5C6401
C
-55
L
/*
MT5C6401
C
-70
L
/*
*AVAILABLE PROCESSES
IT = Industrial Temperature Range
XT = Extended Temperature Range
883C = Full Military Processing
-40oC to +85oC
-55oC to +125oC
-55oC to +125oC
** OPTIONS
L = 2V Data Retention/Low Power
MT5C6401
Rev. 1.0 8/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
9
SRAM
Austin Semiconductor, Inc.
MT5C6401
ASI TO DSCC PART NUMBER
CROSS REFERENCE*
ASI Package Designator C
SMD 5962-86015
ASI Part #
MT5C6801C-35/883C
MT5C6801C-35L/883C
MT5C6801C-45/883C
MT5C6801C-45L/883C
MT5C6801C-55/883C
MT5C6801C-55L/883C
SMD Part #
5962-8601501XA
5962-8601502XA
5962-8601503XA
5962-8601504XA
5962-8601505XA
5962-8601506XA
* ASI part number is for reference only. Orders received referencing the SMD part number will be processed per the SMD.
MT5C6401
Rev. 1.0 8/01
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
10