IDT IDT7164S55Y Cmos static ram 64k (8k x 8-bit) Datasheet

IDT7164S
IDT7164L
CMOS STATIC RAM
64K (8K x 8-BIT)
Integrated Device Technology, Inc.
FEATURES:
DESCRIPTION:
• High-speed address/chip select access time
— Military: 20/25/30/35/45/55/70/85ns (max.)
— Commercial: 15/20/25/35/70ns (max.)
• Low power consumption
• Battery backup operation — 2V data retention voltage
(L Version only)
• Produced with advanced CMOS high-performance
technology
• Inputs and outputs directly TTL-compatible
• Three-state outputs
• Available in:
— 28-pin DIP and SOJ
• Military product compliant to MIL-STD-883, Class B
The IDT7164 is a 65,536 bit high-speed static RAM organized as 8K x 8. It is fabricated using IDT’s high-performance,
high-reliability CMOS technology.
Address access times as fast as 15ns are available and the
circuit offers a reduced power standby mode. When CS1 goes
HIGH or CS2 goes LOW, the circuit will automatically go to,
and remain in, a low-power stand by mode. The low-power (L)
version also offers a battery backup data retention capability
at power supply levels as low as 2V.
All inputs and outputs of the IDT7164 are TTL-compatible
and operation is from a single 5V supply, simplifying system
designs. Fully static asynchronous circuitry is used, requiring
no clocks or refreshing for operation.
The IDT7164 is packaged in a 28-pin 300 mil DIP and SOJ;
and 28-pin 600 mil DIP.
Military grade product is manufactured in compliance with
the latest revision of MIL-STD-883, Class B, making it ideally
suited to military temperature applications demanding the
highest level of performance and reliability.
FUNCTIONAL BLOCK DIAGRAM
A0
V CC
GND
65,536 BIT
ADDRESS
DECODER
MEMORY ARRAY
A12
7
0
I/O
0
I/O CONTROL
I/O 7
CS 1
CS 2
CONTROL
OE
LOGIC
2967 drw 01
WE
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
1996 Integrated Device Technology, Inc.
For latest information contact IDT's web site at www.idt.com or fax-on-demand at 408-492-8391.
MAY 1996
2967/8
6.1
1
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
PIN CONFIGURATIONS
NC
A 12
A7
A6
A5
A4
A3
A2
A1
A0
I/O 0
I/O 1
I/O 2
GND
1
28
2
27
3
26
4
25
5
24
D28-1
6
23
V CC
WE
CS2
A8
A9
A 11
7
D28-3
22
OE
8
P28-1
21
A 10
P28-2
20
9
10
19
SO28-5
11
12
18
17
13
16
14
15
TRUTH TABLE(1,2,3)
WE CS1
CS1
Function
X
H
X
X
High-Z
Deselected – Standby (ISB)
X
L
X
High-Z
Deselected – Standby (ISB)
X
High-Z
Deselected –Standby (ISB1)
High-Z
Deselected –Standby (ISB1)
Output Disabled
VHC VHC or
VLC
X
X
VLC
X
H
L
H
H
High-Z
H
L
H
L
DataOUT Read Data
L
L
H
X
DataIN
Write Data
NOTES:
1. CS2 will power-down CS1, but CS1 will not power-down CS2.
2. H = VIH, L = VIL, X = don't care.
3. VLC = 0.2V, VHC = VCC - 0.2V
2967 drw 02
DIP/SOJ
TOP VIEW
I/O
X
X
I/O 7
I/O 6
I/O 5
I/O 4
I/O 3
OE
CS2
2967 tbl 02
PIN DESCRIPTIONS
Name
Description
A0–A12
Address
I/O0–I/O7
Data Input/Output
CS1
Chip Select
CS2
Chip Select
WE
OE
RECOMMENDED OPERATING
TEMPERATURE AND SUPPLY VOLTAGE
Write Enable
Output Enable
GND
VCC
Ground
Grade
Temperature
GND
VCC
Power
Military
–55°C to +125°C
0V
5V ± 10%
Commercial
0°C to +70°C
0V
5V ± 10%
2967 tbl 01
2967 tbl 04
ABSOLUTE MAXIMUM RATINGS(1)
Symbol
Rating
Com’l.
Mil.
Unit
Terminal Voltage
with Respect
to GND
–0.5 to +7.0
–0.5 to +7.0
V
TA
Operating
Temperature
0 to +70
–55 to +125
°C
TBIAS
Temperature
Under Bias
–55 to +125
–65 to +135
°C
Symbol
TSTG
Storage
Temperature
–55 to +125
–65 to +150
°C
PT
Power Dissipation
1.0
1.0
W
VIH
Input HIGH Voltage
2.2
VIL
Input LOW Voltage
–0.5(1)
(2)
VTERM
IOUT
DC Output
Current
50
50
RECOMMENDED DC OPERATING
CONDITIONS
mA
Parameter
Min.
Typ.
Max.
Unit
VCC
Supply Voltage
4.5
5.0
5.5
V
GND
Supply Voltage
0
0
0
V
— VCC + 0.5 V
—
0.8
V
NOTE:
2967 tbl 05
1. VIL (min.) = –1.5V for pulse width less than 10ns, once per cycle.
NOTES:
2967 tbl 03
1. 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 operational sections of this
specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect reliability.
2. VTERM must not exceed VCC + 0.5V.
6.1
2
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
CAPACITANCE (TA = +25°C, f = 1.0MHz)
Symbol
Parameter(1)
CIN
Input Capacitance
CI/O
I/O Capacitance
Conditions
Max.
Unit
VIN = 0V
8
pF
VOUT = 0V
8
pF
NOTE:
2967 tbl 06
1. This parameter is determined by device characterization, but is not
production tested.
DC ELECTRICAL CHARACTERISTICS(1)
(VCC = 5.0V ± 10%, VLC = 0.2V, VHC = VCC - 0.2V)
Symbol
Parameter
7164S15
7164S20
7164S25
7164S30
7164L15
7164L20
7164L25
7164L30
Power Com’l. Mil.
Com’l.
Mil.
Com’l.
Mil.
Com’l.
Mil.
Unit
100
110
90
110
—
100
mA
—
90
100
80
100
—
90
—
170
180
170
180
—
170
150
—
150
160
150
160
—
150
20
—
20
20
20
20
—
20
ICC1
Operating Power Supply
Current, CS1 = VIL, CS2 = VIH,
Outputs Open, VCC = Max., f = 0(3)
S
110
—
L
100
ICC2
Dynamic Operating Current
CS1 = VIL, CS2 = VIH,
Outputs Open, VCC = Max., f = fMAX(3)
S
180
L
ISB
Standby Power Supply Current
(TTL Level), CS1 ≥ VIH or CS2 ≤ VIL
VCC = Max., Outputs Open, f = fMAX(3)
S
L
3
—
3
5
3
5
—
5
ISB1
Full Standby Power Supply Current
(CMOS Level), f = 0(3), VCC = Max.
1. CS1 ≥ V HC and CS2 ≥ V HC, or
2. CS2 ≤ VLC
S
15
—
15
20
15
20
—
20
L
0.2
—
0.2
1
0.2
1
—
1
mA
mA
mA
DC ELECTRICAL CHARACTERISTICS(1) (Continued)
(VCC = 5.0V ± 10%, VLC = 0.2V, VHC = VCC - 0.2V)
7164S35
7164L35
Symbol
ICC1
ICC2
ISB
ISB1
Parameter
Power Com’l. Mil.
7164S45
7164L45
7164S55
7164L55
7164S70(2)/85(4)
7164L70(2)/85(4)
Com’l.
Mil.
Com’l.
Mil.
Com’l.
Mil.
Unit
mA
Operating Power Supply
Current, CS1 = VIL, CS2 = VIH,
Outputs Open, VCC = Max., f = 0(3)
S
90
100
—
100
—
100
90
100
L
80
90
—
90
—
90
80
90
Dynamic Operating Current
CS1 = VIL, CS2 = VIH,
Outputs Open, VCC = Max., f = fMAX(3)
S
150
160
—
160
—
160
150
160
L
130
140
—
130
—
125
130
120
Standby Power Supply Current
(TTL Level), CS1 ≥ V IH, or CS2 ≤ VIL
VCC = Max., Outputs Open, f = fMAX(3)
S
20
20
—
20
—
20
20
20
L
3
5
—
5
—
5
3
5
Full Standby Power Supply Current
(CMOS Level), f = 0(3), VCC = Max.
1. CS1 ≥ VHC and CS2 ≥ VHC, or
2. CS2 ≤ VLC
S
15
20
—
20
—
20
15
20
L
0.2
1
—
1
—
1
0.2
1
NOTES:
1. All values are maximum guaranteed values.
2. 70 ns available in both military and commercial devices.
3. fMAX = 1/tRC (all address inputs are cycling at fMAX); f = 0 means no address input lines are changing.
4. Also available: 100ns military devices.
6.1
mA
mA
mA
2967 tbl 07
3
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
DC ELECTRICAL CHARACTERISTICS
(VCC = 5.0V ± 10%)
IDT7164S
Symbol
Parameter
Min.
Max.
Min.
Max.
Unit
VCC = Max.,
VIN = GND to VCC
MIL.
COM’L.
—
—
10
5
—
—
5
2
µA
Output Leakage Current
VCC = Max., CS1 = VIH,
VOUT = GND to VCC
MIL.
COM’L.
—
—
10
5
—
—
5
2
µA
Output Low Voltage
IOL = 8mA, VCC = Min.
0.4
—
0.4
V
|ILI|
Input Leakage Current
|ILO|
VOL
VOH
Test Condition
IDT7164L
Output High Voltage
IOL = 10mA, VCC = Min.
—
0.5
—
0.5
IOH = –4mA, VCC = Min.
2.4
—
2.4
—
V
2967 tbl 08
DATA RETENTION CHARACTERISTICS OVER ALL TEMPERATURE RANGES
(L Version Only) (VLC = 0.2V, VHC = VCC - 0.2V)
Typ. (1)
VCC @
Symbol
Parameter
Test Condition
VDR
VCC for Data Retention
ICCDR
Data Retention Current
tCDR(3)
Chip Deselect to Data
Retention Time
1. CS1 ≥ VHC
CS2 ≥ VHC, or
tR(3)
Operation Recovery Time
2. CS2 ≤ VLC
(3)
|ILI|
—
MIL.
COM’L.
Input Leakage Current
Max.
VCC @
Min.
2.0v
3.0V
2.0V
3.0V
Unit
2.0
—
—
—
—
V
—
—
10
10
15
15
200
60
300
90
µA
0
—
—
—
—
ns
tRC(2)
—
—
—
—
ns
—
—
—
2
2
NOTES:
1. TA = +25°C.
2. tRC = Read Cycle Time.
3. This parameter is guaranteed by device characterization, but is not production tested.
µA
2967 tbl 09
AC TEST CONDITIONS
Input Pulse Levels
GND to 3.0V
Input Rise/Fall Times
5ns
Input Timing Reference Levels
1.5V
Output Reference Levels
1.5V
AC Test Load
See Figures 1 and 2
2967 tbl 10
5V
5V
480Ω
480Ω
DATA OUT
DATA OUT
255Ω
255Ω
30pF*
2967 drw 03
5pF*
2967 drw 04
Figure 2. AC Test Load
(for tCLZ1, tCLZ2, tOLZ, tCHZ1, tCHZ2, tOHZ, tOW, and tWHZ)
Figure 1. AC Test Load
*Includes scope and jig capacitances
6.1
4
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AC ELECTRICAL CHARACTERISTICS (VCC = 5.0V ± 10%, All Temperature Ranges)
7164S15(1)
7164L15(1)
Symbol
Parameter
7164S20
7164L20
7164S25
7164L25
7164S30(2)
7164L30
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Read Cycle Time
15
—
20
—
25
—
30
—
ns
Read Cycle
tRC
tAA
Address Access Time
—
15
—
19
—
25
—
29
ns
tACS1
(3)
Chip Select-1 Access Tim
—
15
—
20
—
25
—
30
ns
tACS2
(3)
Chip Select-2 Access Time
—
20
—
25
—
30
—
35
ns
Chip Select-1, 2 to Output in Low-Z
5
—
5
—
5
—
5
—
ns
tOE
Output Enable to Output Valid
—
7
—
8
—
12
—
15
ns
tOLZ(4)
Output Enable to Output in Low-Z
0
—
0
—
0
—
0
—
ns
Chip Select-1, 2 to Output in High-Z
—
8
—
9
—
13
—
13
ns
Output Disable to Output in High-Z
—
7
—
8
—
10
—
12
ns
tCLZ1,2
(4)
tCHZ1,2
tOHZ
(4)
(4)
tOH
Output Hold from Address Change
5
—
5
—
5
—
5
—
ns
tPU
(4)
Chip Select to Power Up Time
0
—
0
—
0
—
0
—
ns
tPD
(4)
Chip Deselect to Power Down Time
—
15
—
20
—
25
—
30
ns
Write Cycle
tWC
Write Cycle Time
15
—
20
—
25
—
30
—
ns
tCW1, 2
Chip Select to End-of-Write
14
—
15
—
18
—
22
—
ns
tAW
Address Valid to End-of-Write
14
—
15
—
18
—
22
—
ns
tAS
Address Set-up Time
0
—
0
—
0
—
0
—
ns
tWP
Write Pulse Width
14
—
15
—
21
—
23
—
ns
tWR1
Write Recovery Time (CS1, WE)
0
—
0
—
0
—
0
—
ns
tWR2
Write Recovery Time (CS2)
5
—
5
—
5
—
5
—
ns
tWHZ(4)
Write Enable to Output in High-Z
—
6
—
8
—
10
—
12
ns
tDW
Data to Write Time Overlap
8
—
10
—
13
—
13
—
ns
tDH1
Data Hold from Write Time (CS1, WE)
0
—
0
—
0
—
0
—
ns
tDH2
Data Hold from Write Time (CS2)
5
—
5
—
5
—
5
—
ns
tOW(4)
Output Active from End-of-Write
4
—
4
—
4
—
4
—
NOTES:
1. 0° to +70°C temperature range only.
2. –55°C to +125°C temperature range only. Also available: 100ns military devices.
3. Both chip selects must be active for the device to be selected.
4. This parameter is guaranteed by device characterization, but is not production tested.
6.1
ns
2967 tbl 11
5
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
AC ELECTRICAL CHARACTERISTICS (Continued) (VCC = 5.0V ± 10%, All Temperature Ranges)
7164S35
7164L35
Symbol
Parameter
7164S45(2)
7164L45(2)
7164S55(2)
7164L55(2)
7164S70/85(2)
7164L70/85(2)
Min.
Max.
Min.
Max.
Min.
Max.
Min.
Max.
Unit
Read Cycle Time
35
—
45
—
55
—
70/85
—
ns
Read Cycle
tRC
tAA
Address Access Time
—
35
—
45
—
55
—
70/85
ns
tACS1
(3)
Chip Select-1 Access Time
—
35
—
45
—
55
—
70/85
ns
tACS2
(3)
Chip Select-2 Access Time
—
40
—
45
—
55
—
70/85
ns
Chip Select-1, 2 to Output in Low-Z
5
—
5
—
5
—
5
—
ns
Output Enable to Output Valid
—
18
—
25
—
30
—
35/40
ns
Output Enable to Output in Low-Z
0
—
0
—
0
—
0
—
ns
Chip Select-1, 2 to Output in High-Z
—
15
—
20
—
25
—
30/35
ns
Output Disable to Output in High-Z
—
15
—
20
—
25
—
30/35
ns
tCLZ1,2
(4)
tOE
tOLZ
(4)
tCHZ1,2
tOHZ
(4)
(4)
tOH
Output Hold from Address Change
5
—
5
—
5
—
5
—
ns
tPU
(4)
Chip Select to Power Up Time
0
—
0
—
0
—
0
—
ns
tPD
(4)
Chip Deselect to Power Down Time
—
35
—
45
—
55
—
70/85
ns
Write Cycle
tWC
Write Cycle Time
35
—
45
—
55
—
70/85
—
ns
tCW1, 2
Chip Select to End-of-Write
25
—
33
—
50
—
60/75
—
ns
tAW
Address Valid to End-of-Write
25
—
33
—
50
—
60/75
—
ns
tAS
Address Set-up Time
0
—
0
—
0
—
0
—
ns
tWP
Write Pulse Width
25
—
25
—
50
—
60/75
—
ns
tWR1
Write Recovery Time (CS1, WE)
0
—
0
—
0
—
0
—
ns
tWR2
Write Recovery Time (CS2)
5
—
5
—
5
—
5
—
ns
tWHZ(4)
Write Enable to Output in High-Z
—
14
—
18
—
25
—
30/35
ns
tDW
Data to Write Time Overlap
15
—
20
—
25
—
30/35
—
ns
tDH1
Data Hold from Write Time (CS1, WE)
0
—
0
—
0
—
0
—
ns
tDH2
Data Hold from Write Time (CS2)
5
—
5
—
5
—
5
—
ns
tOW(4)
Output Active from End-of-Write
4
—
4
—
4
—
4
—
NOTES:
1. 0° to +70°C temperature range only.
2. –55°C to +125°C temperature range only. Also available: 100ns military devices.
3. Both chip selects must be active for the device to be selected.
4. This parameter is guaranteed by device characterization, but is not production tested.
6.1
ns
2967 tbl 11
6
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TIMING WAVEFORM OF READ CYCLE NO. 1(1)
tRC
ADDRESS
tAA
tOH
OE
tOE
tOLZ (5)
CS2
tACS2
tCHZ2
tCLZ2 (5)
(5)
CS1
tCLZ1
tOHZ (5)
tACS1
(5)
tCHZ1
DATA OUT
(5)
DATA VALID
2967 drw 05
(1, 2, 4)
TIMING WAVEFORM OF READ CYCLE NO. 2
tRC
ADDRESS
tAA
tOH
tOH
DATA OUT
DATA VALID
2967 drw 06
TIMING WAVEFORM OF READ CYCLE NO. 3
(1, 3, 4)
CS1
CS2
tACS2
tCLZ2 (5)
tACS1
tCLZ1 (5)
DATA OUT
tCHZ2
(5)
tCHZ1
(5)
DATA VALID
tPU
ICC
POWER
SUPPLY
CURRENT ISB
NOTES:
1. WE is HIGH for Read cycle.
2. Device is continuously selected, CS1 is LOW, CS2 is HIGH.
3. Address valid prior to or coincident with CS1 transition LOW and CS2 transition HIGH.
4. OE is LOW.
5. Transition is measured ±200mV from steady state.
6.1
tPD
2967 drw 07
7
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
TIMING WAVEFORM OF WRITE CYCLE NO. 1 (WE CONTROLLED TIMING)(1, 2, 6)
tWC
ADDRESS
CS2
CS1
tWR1(3)
tAW
tAS
WE
(6)
(4)
tOW(7)
tWP
DATA OUT
tDW
tWHZ (7)
tDH1, 2
DATA IN
DATA VALID
2967 drw 08
TIMING WAVEFORM OF WRITE CYCLE NO. 2 (CS CONTROLLED TIMING)(1, 2)
tWC
ADDRESS
tAS
tWR2
(3)
tWR1
(3)
CS2
tCW
CS1
(5)
tAW
WE
tDW
DATA IN
tDH1,2
DATA VALID
2967 drw 09
NOTES:
1. WE, CS1 or CS2 must be inactive during all address transitions.
2. A write occurs during the overlap of a LOW WE, a LOW CS1 and a HIGH CS2.
3. tWR1, 2 is measured from the earlier of CS1 or WE going HIGH or CS2 going LOW to the end of the write cycle.
4. During this period, I/O pins are in the output state so that the input signals must not be applied.
5. If the CS1 LOW transition or CS2 HIGH transition occurs simultaneously with or after the WE LOW transition, the outputs remain in a high-impedance state.
6. OE is continuously HIGH. If OE is LOW during a WE controlled write cycle, the write pulse width must be the larger of tWP or (tWHZ +tDW) to allow the
I/O drivers to turn off and data to be placed on the bus for the required tDW. If OE is HIGH during a WE controlled write cycle, this requirement does not
apply and the minimum write pulse width is as short as the specified tWP.
7. Transition is measured ±200mV from steady state.
6.1
8
IDT7164S/L
CMOS STATIC RAM 64K (8K x 8-BIT)
MILITARY AND COMMERCIAL TEMPERATURE RANGES
LOW VCC DATA RETENTION WAVEFORM
DATA
RETENTION
MODE
V CC
4.5V
4.5V
V DR ≥ 2V
tCDR
CS
V IH
tR
V IH
V DR
2967 drw 10
ORDERING INFORMATION
IDT 7164
Device
Type
X
XX
XXX
X
Power
Speed
Package
Process/
Temperature
Range
6.1
Blank
Commercial (0°C to +70°C)
B
Military (–55°C to +125°C)
Compliant to MIL-STD-883, Class B
Y
TD
D
P
TP
300 mil
300 mil
600 mil
600 mil
300 mil
15
20
25
30
35
45
55
70
85
Commercial Only
S
L
Standard Power
Low Power
SOJ (SO28-5)
CERDIP (D28-3)
CERDIP (D28-1)
Plastic DIP (P28-1)
Plastic DIP (P28-2)
Military Only
Speed in nanoseconds
Military Only
Military Only
Military Only
2967 drw 11
9
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