6.42
IDT70V26S/L
High-Speed 16K x 16 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
4
Truth Table II — Semaphore Read/Write Control
(1)
Truth Table I — Non-Contention Read/Write Control
NOTE:
1. A0L — A13L A0R — A13R
NOTE:
1. There are eight semaphore flags written to via I/O0 and read from all I/O's (I/O0-I/O15). These eight semaphores are addressed by A0-A2.
Inputs
(1)
Outputs
Mode
CE
R/W
OE UB LB SEM
I/O
8-15
I/O
0-7
HXXXXHHigh-ZHigh-ZDeselected: Power-Down
X X X H H H High-Z High-Z Both Bytes Deselected: Power-Down
LLXLHHDATA
IN
High-Z Write to Upper Byte Only
LLXHLHHigh-ZDATA
IN
Write to Lower Byte Only
LLXLLHDATA
IN
DATA
IN
Write to Both Bytes
LHLLHHDATA
OUT
High-Z Read Upper Byte Only
LHLHLHHigh-ZDATA
OUT
Read Lower Byte Only
LHLLLHDATA
OUT
DATA
OUT
Read Both Bytes
XXHXXXHigh-ZHigh-ZOutputs Disabled
2945 tbl 02
Inputs
(1 )
Outputs
Mode
CE
R/W
OE UB LB SEM
I/O
8-15
I/O
0-7
HHLXXLDATA
OUT
DATA
OUT
Read Data in Semaphore Flag
XHLHHLDATA
OUT
DATA
OUT
Read Data in Semaphore Flag
H
XXXLDATA
IN
DATA
IN
Write I/O
0
into Semaphore Flag
X
XHHLDATA
IN
DATA
IN
Write I/O
0
into Semaphore Flag
LXXLXL
____ ____
Not Allowed
LXXXLL
____ ____
Not Allowed
2945 tbl 03
6.42
IDT70V26S/L
High-Speed 16K x 16 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
5
Absolute Maximum Ratings
(1)
Maximum Operating Temperature
and Supply Voltage
(1)
Recommended DC Operating
Conditions
(2)
Capacitance
(1)
(TA = +25°C, f = 1.0MHz)
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range
(VDD = 3.3V ± 0.3V)
NOTES:
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. V
TERM must not exceed VDD + 0.3V for more than 25% of the cycle time or 10ns
maximum, and is limited to
< 20mA for the period of VTERM > VDD + 0.3V.
3. Ambient Temperature Under Bias. No AC Conditions. Chip Deselected.
NOTES:
1. This is the parameter T
A. This is the "instant on" case temperature.
NOTES:
1. V
IL > -1.5V for pulse width less than 10ns.
2. V
TERM must not exceed VDD + 0.3V.
NOTES:
1. This parameter is determined by device characterization but is not production
tested.
2. 3dV represents the interpolated capacitance when the input and output signals
switch from 0V to 3V or from 3V to 0V.
NOTE:
1. At V
DD < 2.0V, input leakages are undefined.
Symbol Rating Commercial
& Industrial
Unit
V
TERM
(2)
Terminal Voltag e
with Respect to GND
-0.5 to +4.6 V
T
BIAS
Temperature Under Bias -55 to +125
o
C
T
STG
Storage Temperature -65 to +150
o
C
T
JN
Junction Temperature +150
o
C
I
OUT
DC Output Current 50 mA
2945 tbl 04
Grade Ambient Temperature GND V
DD
Commercial 0
O
C to +70
O
C0V3.3V
+
0.3
Industrial -40
O
C to +85
O
C0V3.3V
+
0.3
2945 tbl 05
Symbol Parameter Conditions
(2 )
Max. Unit
C
IN
Input Capacitance V
IN
= 3dV 9 pF
C
OUT
Output Capacitance V
OUT
= 3dV 10 pF
2945 tbl 07
Symbol Parameter Test Conditions
70V26S 70V26L
UnitMin. Max. Min. Max.
|I
LI
| Input Leakage Current
(1)
V
DD
= 3.6V, V
IN
= 0V t
o
V
DD
___
10
___
A
|I
LO
| Output Leakage Current
CE = V
IH
, V
OUT
= 0V t
o
V
DD
___
10
___
A
V
OL
Output Low Voltage I
OL
= +4mA
___
0.4
___
0.4 V
V
OH
Output High Voltage I
OH
= -4mA 2.4
___
2.4
___
V
2945 tbl 08
Symbol Parameter Min. Typ. Max. Unit
V
DD
Supply Voltage 3.0 3.3 3.6 V
V
SS
Ground 0 0 0 V
V
IH
Input High Voltage 2.0
____
V
DD
+ 0.3
(2)
V
V
IL
Input Low Voltage -0.3
(1)
____
0.8 V
2945 tbl 06
6.42
IDT70V26S/L
High-Speed 16K x 16 Dual-Port Static RAM Industrial and Commercial Temperature Ranges
6
AC Test Conditions
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range
(1)
(VDD = 3.3V ± 0.3V)
NOTES:
1. 'X' in part number indicates power rating (S or L)
2. V
DD = 3.3V, TA = +25°C, and are not production tested. ICCDC = 80mA (Typ.)
3. At f = f
MAX, address and control lines (except Output Enable) are cycling at the maximum frequency read cycle of 1/tRC, and using “AC Test Conditions” of input levels of
GND to 3V.
4. f = 0 means no address or control lines change.
5. Port "A" may be either left or right port. Port "B" is the opposite from port "A".
Figure 1. AC Output Test Load Figure 2. Output Test Load
(for t
LZ, tHZ, tWZ, tOW)
* Including scope and jig.
70V26X25
Com'l
& Ind
70V26X35
Com'l Only
70V26X55
Com'l Only
Symbol Parameter Test Condition Version Typ.
(2)
Max. Typ.
(2)
Max. Typ.
(2)
Max. Unit
I
CC
Dynamic Operating
Current
(Both Ports Active)
CE = V
IL
, Outputs Disabled
SEM = V
IH
f = f
MAX
(3)
COM'L S
L
100
100
170
140
90
90
140
120
90
90
140
120
mA
IND S
L
100
100
200
185
____
____
____
____
____
____
____
____
mA
I
SB1
Standby Current
(Both Ports - TTL
Level Inputs)
CE
R
= CE
L
= V
IH
SEM
R
= SEM
L
= V
IH
f = f
MAX
(3)
COM'L S
L
14
12
30
24
12
10
30
24
12
10
30
24
mA
IND S
L
14
12
60
50
____
____
____
____
____
____
____
____
mA
I
SB2
Standby Current
(One Port - TTL
Level Inputs)
CE
"A"
= V
IL
and CE
"B"
= V
IH
(5)
Active Port Outputs Disabled,
f=f
MAX
(3)
SEM
R
= SEM
L
= V
IH
COM'L S
L
50
50
95
85
45
45
87
75
45
45
87
75
mA
IND S
L
50
50
130
105
____
____
____
____
____
____
____
____
mA
I
SB3
Full Standby Current
(Both Ports -
CMOS Level Inputs)
Both Ports CE
L
and
CE
R
> V
DD
- 0.2V,
V
IN
> V
DD
- 0.2V or
V
IN
< 0.2V, f = 0
(4)
SEM
R
= SEM
L
> V
DD
- 0.2V
COM'L S
L
1.0
0.2
6
3
1.0
0.2
6
3
1.0
0.2
6
3
mA
IND S
L
1.0
0.2
6
3
____
____
____
____
____
____
____
____
mA
I
SB4
Full Standby Current
(One Port -
CMOS Level Inputs)
CE
"A"
< 0.2V and
CE
"B"
> V
DD
- 0.2V
(5)
SEM
R
= SEM
L
> V
DD
- 0.2V
V
IN
> V
DD
- 0.2V or V
IN
< 0.2V
Active Port Outputs Disabled,
f = f
MAX
(3)
COM'L S
L
60
60
90
80
55
55
85
74
55
55
85
74
mA
IND S
L
60
60
125
90
____
____
____
____
____
____
____
____
mA
2945 tbl 09
Input Pulse Levels
Input Rise/Fall Times
Input Timing Reference Levels
Output Reference Levels
Output Load
GND to 3.0V
3ns Max.
1.5V
1.5V
Figures 1 and 2
2945 tbl 10
2945 drw 05
590
30pF
435
3.3V
DATA
OUT
BUSY
590
5pF*
435
3.3V
DATA
OUT
2945 drw 04
,

70V26S55G

Mfr. #:
Manufacturer:
IDT
Description:
SRAM 16Kx16 3.3V DUAL- PORT RAM
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
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