HIGH-SPEED 16K x 16
SYNCHRONOUS PIPELINED
DUAL-PORT STATIC RAM
Features:
x
x
PRELIMINARY
IDT709269S/L
x
x
x
x
True Dual-Ported memory cells which allow simultaneous
access of the same memory location
High-speed clock to data access
– Commercial: 9/12/15ns (max.)
Low-power operation
– IDT709269S
Active: 950mW (typ.)
Standby: 5mW (typ.)
– IDT709269L
Active: 950mW (typ.)
Standby: 1mW (typ.)
Flow-through or Pipelined output mode on either port via
the
FT/PIPE
pin
Counter enable and reset features
Dual chip enables allow for depth expansion without
additional logic
x
x
x
x
x
Full synchronous operation on both ports
– 4ns setup to clock and 1ns hold on all control, data, and
address inputs
– Data input, address, and control registers
– Fast 9ns clock to data out in the Pipelined output mode
– Self-timed write allows fast cycle time
– 15ns cycle time, 66MHz operation in Pipelined output mode
Separate upper-byte and lower-byte controls for
multiplexed bus and bus matching compatibility
TTL- compatible, single 5V (±10%) power supply
Industrial temperature range (–40°C to +85°C) is
available for selected speeds
Available in a 100-pin Thin Quad Flatpack (TQFP) package
Functional Block Diagram
R/W
L
UB
L
CE
0L
CE
1L
LB
L
OE
L
R/W
R
UB
R
1
0
0/1
1
0
0/1
CE
0R
CE
1R
LB
R
OE
R
FT/PIPE
L
0/1
1b 0b
b
a
1a 0a
0a 1a
a
b
0b 1b
0/1
FT/PIPE
R
I/O
8L
-I/O
15L
I/O
Control
I/O
0L
-I/O
7L
I/O
Control
I/O
8R
-I/O
15R
I/O
0R
-I/O
7R
A
13L
A
0L
CLK
L
ADS
L
CNTEN
L
CNTRST
L
Counter/
Address
Reg.
MEMORY
ARRAY
Counter/
Address
Reg.
A
13R
A
0R
CLK
R
ADS
R
CNTEN
R
CNTRST
R
3493 drw 01
APRIL 2000
1
©2000 Integrated Device Technology, Inc.
DSC-3493/8
IDT709269S/L
High-Speed 16K x 16 Synchronous Pipelined Dual-Port Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
Description:
The IDT709269 is a high-speed 16K x 16 bit synchronous pipelined
Dual-Port RAM. The memory array utilizes Dual-Port memory cells to
allow simultaneous access of any address from both ports. Registers
on control, data, and address inputs provide minimal setup and hold
times. The timing latitude provided by this approach allows systems
to be designed with very short cycle times.
With an input data register, the IDT709269 has been optimized for
applications having unidirectional or bidirectional data flow in bursts.
An automatic power down feature, controlled by
CE
0
and CE
1,
permits
the on-chip circuitry of each port to enter a very low standby power
mode. Fabricated using IDT’s CMOS high-performance technology,
these devices typically operate on only 950mW of power.
Pin Configuration
(1,2,3)
Index
A
9L
A
10L
A
11L
A
12L
A
13L
NC
NC
NC
NC
LB
L
UB
L
CE
0L
CE
1L
CNTRST
L
Vcc
R/W
L
OE
L
FT/PIPE
L
GND
I/O
15L
I/O
14L
I/O
13L
I/O
12L
I/O
11L
I/O
10L
100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76
75
2
74
73
3
1
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
72
71
70
69
68
67
A
8L
A
7L
A
6L
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
CNTEN
L
CLK
L
ADS
L
GND
ADS
R
CLK
R
CNTEN
R
A
0R
A
1R
A
2R
A
3R
A
4R
A
5R
A
6R
A
7R
A
8R
IDT709269PF
PN100-1
(4)
100-PIN TQFP
TOP VIEW
(5)
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
24
51
25
26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50
A
9R
A
10R
A
11R
A
12R
A
13R
NC
NC
NC
NC
LB
R
UB
R
CE
0R
CE
1R
CNTRST
R
GND
R/W
R
OE
R
FT/PIPE
R
GND
I/O
15R
I/O
14R
I/O
13R
I/O
12R
I/O
11R
I/O
10R
3493 drw 02
,
NOTES:
1. All V
CC
pins must be connected to power supply.
2. All GND pins must be connected to ground supply.
3. Package body is approximately 14mm x 14mm x 1.4mm
4. This package code is used to reference the package diagram.
5. This text does not indicate orientation of the actual part-marking.
I/O
9L
I/O
8L
Vcc
I/O
7L
I/O
6L
I/O
5L
I/O
4L
I/O
3L
I/O
2L
GND
I/O
IL
I/O
0L
GND
I/O
0R
I/O
1R
I/O
2R
I/O
3R
I/O
4R
I/O
5R
I/O
6R
Vcc
I/O
7R
I/O
8R
I/O
9R
NC
2
6.42
IDT709269S/L
High-Speed 16K x 16 Synchronous Pipelined Dual-Port Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
Pin Names
Left Port
CE
0L
, CE
1L
R/W
L
OE
L
A
0L
- A
13L
I/O
0L
- I/O
15L
CLK
L
UB
L
LB
L
ADS
L
CNTEN
L
CNTRST
L
FT/PIPE
L
Right Port
CE
0R
, CE
1R
R/W
R
OE
R
A
0R
- A
13R
I/O
0R
- I/O
15R
CLK
R
UB
R
LB
R
ADS
R
CNTEN
R
CNTRST
R
FT/PIPE
R
V
CC
GND
Chip Enables
Read/Write Enable
Output Enable
Address
Data Input/Output
Clock
Upper Byte Select
Lower Byte Select
Address Strobe
Counter Enable
Counter Reset
Flow-Through/Pipeline
Power
Ground
3493 tbl 01
Names
Truth Table IRead/Write and Enable Control
(1,2,3)
OE
X
X
X
X
X
X
L
L
L
H
CLK
↑
↑
↑
↑
↑
↑
↑
↑
↑
X
CE
0
H
X
L
L
L
L
L
L
L
L
CE
1
X
L
H
H
H
H
H
H
H
H
UB
X
X
H
L
H
L
L
H
L
L
LB
X
X
H
H
L
L
H
L
L
L
R/
W
X
X
X
L
L
L
H
H
H
X
Upper
Byte
I/O
8-15
High-Z
High-Z
High-Z
D
IN
High-Z
D
IN
D
OUT
High-Z
D
OUT
High-Z
Lower B
yte
I/O
0-7
High-Z
High-Z
High-Z
High-Z
D
IN
D
IN
High-Z
D
OUT
D
OUT
High-Z
Deselected—Power Down
Deselected—Power Down
Both Bytes Deselected
Write to Upper Byte Only
Write to Lower Byte Only
Write to Both Bytes
Read Upper Byte Only
Read Lower Byte Only
Read Both Bytes
Outputs Disabled
Mode
NOTES:
1. "H" = V
IH,
"L" = V
IL,
"X" = Don't Care.
2.
ADS, CNTEN, CNTRST
= X.
3.
OE
is an asynchronous input signal.
3493 tbl 02
6.42
3
IDT709269S/L
High-Speed 16K x 16 Synchronous Pipelined Dual-Port Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
TRUTH TABLE IIAddress Counter Control
(1,2)
Address
X
An
X
X
Previous
Address
X
X
An
An
CLK
↑
↑
↑
↑
ADS
H
L
(4)
H
H
CNTEN
H
H
H
L
(5)
CNTRST
L
H
H
H
I/O
(3)
D
I/O
(0)
D
I/O
(n)
D
I/O
(n)
D
I/O
(n+1)
Counter Reset to Address 0
External Address Utilized
External Address Blocked—Counter Disabled
Counter Enable—Internal Address Generation
3493 tbl 03
Mode
NOTES:
1. "H" = V
IH,
"L" = V
IL,
"X" = Don't Care.
2.
CE
0
,
LB, UB,
and
OE
= V
IL
; CE
1
and R/W = V
IH
.
3. Outputs configured in Flow-Through Output mode; if outputs are in Pipelined mode the data out will be delayed by one cycle.
4.
ADS
is independent of all other signals including
CE
0
, CE
1
,
UB
and
LB.
5. The address counter advances if
CNTEN
= V
IL
on the rising edge of CLK, regardless of all other signals including
CE
0
, CE
1
,
UB
and
LB.
Recommended Operating
Recommended DC Operating
Temperature and Supply Voltage
(1,2)
Conditions
Grade
Commercial
Industrial
Ambient
Temperature
0 C to +70 C
-40
O
C to +85
O
C
O
O
GND
0V
0V
Vcc
5.0V
+
10%
5.0V
+
10%
3493 tbl 04
Symbol
V
CC
GND
V
IH
V
IL
Parameter
Supply Voltage
Ground
Input High Voltage
Input Low Voltage
Min.
4.5
0
2.2
-0.5
(2)
Typ.
5.0
0
____
Max.
5.5
0
6.0
(1)
0.8
Unit
V
V
V
V
3493 tbl 05
NOTES:
1. This is the parameter T
A
.
2. Industrial temperature: for specific speeds, packages and powers contact your
sales office.
____
NOTES:
1. V
TERM
must not exceed V
CC
+ 10%.
2. V
IL
> -1.5V for pulse width less than 10ns.
Absolute Maximum Ratings
(1)
Symbol
V
TERM
(2)
Rating
Terminal Voltage
with Respect
to GND
Temperature
Under Bias
Storage
Temperature
DC Output
Current
Commercial
& Industrial
-0.5 to +7.0
Unit
V
Capacitance
Symbol
C
IN
C
OUT
(3)
(T
A
= +25°C, f = 1.0MH
z
)
Conditions
(2)
V
IN
= 3dV
V
OUT
= 3dV
Max.
9
10
Unit
pF
pF
3493 tbl 07
Parameter
(1)
Input Capacitance
Output Capacitance
T
BIAS
T
STG
I
OUT
-55 to +125
-55 to +125
50
o
C
C
o
NOTES:
1. These parameters are determined by device characterization, but are not produc-
tion tested.
2. 3dV references the interpolated capacitance when the input and output switch from
0V to 3V or from 3V to 0V.
3. C
OUT
also references C
I/O
.
mA
3493 tbl 06
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 V
cc
+ 10% for more than 25% of the cycle time or 10ns
maximum, and is limited to < 20mA for the period of V
TERM
> V
CC
+ 10%.
4
6.42
IDT709269S/L
High-Speed 16K x 16 Synchronous Pipelined Dual-Port Static RAM
Preliminary
Industrial and Commercial Temperature Ranges
DC Electrical Characteristics Over the Operating
Temperature Supply Voltage Range
(V
CC
= 5.0V ± 10%)
709269S/L
Symbol
|I
LI
|
|I
LO
|
V
OL
V
OH
Parameter
Input Leakage Current
(1)
Output Leakage Current
Output Low Voltage
Output High Voltage
Test Conditions
V
CC
= 5.5V, V
IN
= 0V to V
CC
CE
0
= V
IH
or CE
1
= V
IL
, V
OUT
= 0V to V
CC
I
OL
= +4mA
I
OH
= -4mA
Min.
___
Max.
10
10
0.4
___
Unit
µA
µA
V
V
3493 tbl 08
___
___
2.4
NOTE:
1. At V
CC
< 2.0V input leakages are undefined.
DC Electrical Characteristics Over the Operating
Temperature and Supply Voltage Range
(6,7)
(V
CC
= 5V ± 10%)
709269X9
Com'l Only
Symbol
I
CC
Parameter
Dynamic Operating
Current
(Both Ports Active)
Test Condition
CE
L
and
CE
R
= V
IL
Outputs Open
f = f
MAX
(1)
Version
COM'L
IND
COM'L
IND
I
SB2
Standby Current
(One Port - TTL
Level Inputs)
CE
"A"
= V
IL
and
CE
"B"
= V
IH
(3)
Active Port Outputs
Open,
f=f
MAX
(3)
Both Ports
CE
R
and
CE
L
> V
CC
- 0.2V
V
IN
> V
CC
- 0.2V or
V
IN
< 0.2V, f = 0
(2)
CE
"A"
< 0.2V and
CE
"B"
> V
CC
- 0.2V
(5)
V
IN
> V
CC
- 0.2V or
V
IN
< 0.2V, Active Port
Outputs Open, f = f
MAX
(1)
COM'L
IND
COM'L
IND
COM'L
IND
S
L
S
L
S
L
S
L
S
L
S
L
S
L
S
L
S
L
S
L
Typ.
(4)
210
210
____
____
709269X12
Com'l Only
Typ.
(4)
200
200
____
____
709269X15
Com'l Only
Typ.
(4)
190
190
____
____
Max.
390
350
____
____
Max.
345
305
____
____
Max.
325
285
____
____
Unit
mA
I
SB1
Standby Current
(Both Ports - TTL
Level Inputs)
CE
L
=
CE
R
= V
IH
f = f
MAX
(1)
50
50
____
____
135
115
____
____
50
50
____
____
110
90
____
____
50
50
____
____
110
90
____
____
mA
140
140
____
____
270
240
____
____
130
130
____
____
230
200
____
____
120
120
____
____
220
190
____
____
mA
I
SB3
Full Standby Current
(Both Ports -
CMOS Level Inputs)
1.0
0.2
____
____
15
5
____
____
1.0
0.2
____
____
15
5
____
____
1.0
0.2
____
____
15
5
____
____
mA
I
SB4
Full Standby Current
(One Port -
CMOS Level Inputs)
130
130
____
____
245
225
____
____
120
120
____
____
205
185
____
____
110
110
____
____
195
175
____
____
mA
3493 tbl 09
NOTES:
1. At f = f
MAX
, address and control lines (except Output Enable) are cycling at the maximum frequency clock cycle of 1/t
CYC
, using "AC TEST CONDITIONS" at input levels of
GND to 3V.
2. f = 0 means no address, clock, or control lines change. Applies only to input at CMOS level standby.
3. Port "A" may be either left or right port. Port "B" is the opposite from port "A".
4. V
CC
= 5V, T
A
= 25°C for Typ, and are not production tested. I
CC DC
(f=0) = 150mA (Typ).
5.
CE
X
= V
IL
means
CE
0X
= V
IL
and CE
1X
= V
IH
CE
X
= V
IH
means
CE
0X
= V
IH
or CE
1X
= V
IL
CE
X
< 0.2V means
CE
0X
< 0.2V and CE
1X
> V
CC
- 0.2V
CE
X
> V
CC
- 0.2V means
CE
0X
> V
CC
- 0.2V or CE
1X
< 0.2V
"X" represents "L" for left port or "R" for right port.
6. 'X' in part number indicates power rating (S or L).
7. Industrial temperature: for specific speeds, packages and powers contact your sales office.
6.42
5
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