HIGH-SPEED 2.5V
16/8K X 9 DUAL-PORT
STATIC RAM
Features
◆
◆
IDT70T16/5L
◆
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
High-speed access
– Commercial:20/25ns (max.)
– Industrial: 25ns (max.)
Low-power operation
– IDT70T16/5L
Active: 200mW (typ.)
Standby: 600
µ
W (typ.)
◆
IDT70T16/5 easily expands data bus width to 18 bits or
more using the Master/Slave select when cascading more
than one device
◆
◆
◆
◆
◆
◆
◆
◆
M/S = V
IH
for
BUSY
output flag on Master
M/S = V
IL
for
BUSY
input on Slave
Busy and Interrupt Flag
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
LVTTL-compatible, single 2.5V (±100mV) power supply
Available in an 80-pin TQFP and 100-pin
fpBGA
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
Functional Block Diagram
OE
L
CE
L
R/W
L
OE
R
CE
R
R/W
R
I/O
0L
- I/O
8L
I/O
Control
BUSY
L
(2,3)
I/O
0R
-I/O
8R
I/O
Control
BUSY
R
Address
Decoder
14
(2,3)
A
13L
(1)
A
0L
MEMORY
ARRAY
14
Address
Decoder
A
13R
(1)
A
0R
CE
L
OE
L
R/W
L
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
CE
R
OE
R
R/W
R
SEM
L
(3)
INT
L
NOTES:
1. A
13
is a NC for IDT70T15.
2. (MASTER):
BUSY
is output; (SLAVE):
BUSY
is input.
3.
BUSY
outputs and
INT
outputs are non-tri-stated push-pull drivers.
M/S
SEM
R
(3)
INT
R
5663 drw 01
AUGUST 2004
1
©2004 Integrated Device Technology, Inc.
DSC 5663/2
IDT70T16/5L
High-Speed 2.5V 16/8K x 9 Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
The IDT70T16/5 is a high-speed 16/8K x 9 Dual-Port Static RAM.
The IDT70T16/5 is designed to be used as stand-alone Dual-Port RAMs
or as a combination MASTER/SLAVE Dual-Port RAM for 18-bit-or-more
wider systems. Using the IDT MASTER/SLAVE Dual-Port RAM ap-
proach in 18-bit or wider memory system applications results in full-speed,
error-free operation without the need for additional discrete logic.
This device provides two independent ports with separate control,
address, and I/O pins that permit independent, asynchronous access for
Description
reads or writes to any location in memory. An automatic power down
feature controlled by
CE
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 200mW of power.
The IDT70T16/5 is packaged in an 80-pinTQFP (Thin Quad Flatpack)
and a 100-pin
fpBGA
(fine pitch Ball Grid array) .
Pin Configurations
(1,2,3,4)
I/O
0L
I/O
8L
I/O
1L
OE
L
R/W
L
SEM
L
A
12L
CE
L
NC
A
11L
A
10L
07/11/02
NC
A
13L
(1)
V
DD
A
9L
A
7L
A
6L
A
8L
INDEX
79
78
77
76
70
69
66
65
64
63
62
75
80
74
73
72
71
68
67
61
NC
NC
NC
I/O
2L
I/O
3L
I/O
4L
I/O
5L
V
SS
I/O
6L
I/O
7L
V
DD
NC
V
SS
I/O
0R
I/O
1R
I/O
2R
V
DD
I/O
3R
I/O
4R
I/O
5R
I/O
6R
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
60
59
58
57
56
55
54
NC
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
INT
L
BUSY
L
V
SS
M/S
BUSY
R
INT
R
A
0R
A
1R
A
2R
A
3R
A
4R
NC
NC
,
IDT70T16/5PF
PN80-1
(5)
80-Pin TQFP
Top View
(6)
53
52
51
50
49
48
47
46
45
44
43
42
21
27
28
30
31
33
34
37
38
35
26
36
24
25
32
29
39
40
20
22
23
41
I/O
7R
I/O
8R
OE
R
A
13R
(1)
V
SS
R/W
R
SEM
R
A
11R
A
10R
CE
R
NC
NC
A
12R
A
9R
A
8R
A
7R
A
6R
A
5R
NC
NOTES:
1. A
13
is a NC for IDT70T15.
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground supply.
4. Package body is approximately 1.18 in x 1.18 in x 0.16 in.
5. This package code is used to reference the package diagram.
6. This text does not imply orientation of Part-marking.
2
6.42
NC
5663 drw 02
IDT70T16/5L
High-Speed 2.5V 16/8K x 9 Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Pin Configurations (con't.)
(1,2,3,4)
IDT70T16/5BF
BF100
(5)
100-Pin fpBGA
Top View
(6)
08/14/02
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A
6R
B1
A
9R
B2
A
12R
B3
NC
B4
V
SS
B5
V
SS
B6
NC
B7
R/W
R
B8
NC
B9
I/O
7R
B10
NC
C1
NC
C2
A
8R
C3
A
10R
C4
NC
C5
NC
C6
A
13R
(1)
OE
R
C7
C8
I/O
8R
C9
I/O
6R
C10
A
3R
D1
A
4R
D2
A
5R
D3
A
7R
D4
NC
D5
NC
D6
CE
R
D7
NC
D8
NC
D9
I/O
3R
D10
A
1R
E1
INT
R
E2
A
2R
E3
NC
E4
A
11R
E5
NC
E6
SEM
R
E7
NC
E8
I/O
5R
I/O
1R
E9
E10
M/S
BUSY
R
F1
F2
A
0R
F3
A
1L
F4
V
SS
F5
V
SS
F6
I/O
4R
F7
I/O
2R
F8
I/O
0R
F9
V
DD
F10
V
SS
G1
BUSY
L
G2
A
0L
G3
NC
G4
V
DD
G5
V
SS
G6
V
DD
G7
I/O
5L
G8
I/O
6L
G9
I/O
7L
G10
INT
L
H1
A
3L
H2
A
6L
H3
NC
H4
NC
H5
SEM
L
H6
NC
H7
I/O
3L
H8
V
SS
H9
I/O
4L
H10
,
A
2L
J1
A
5L
J2
A
10L
J3
NC
J4
NC
J5
CE
L
I/O
8L
NC
NC
J9
I/O
2L
J10
A
4L
K1
A
8L
K2
A
11L
K3
NC
K4
NC
K5
J8
J6
J7
(1)
A
13L
R/W
L
NC
K6
K7
K8
V
SS
K9
I/O
1L
K10
A
7L
A
9L
A
12L
NC
V
DD
V
DD
NC
NC
OE
L
I/O
0L
5663 drw 03
NOTES:
1. A
13
is a NC for IDT70T15.
2. All V
DD
pins must be connected to power supply.
3. All V
SS
pins must be connected to ground.
4. BF-100 package body is approximately 10mm x 10mm x 1.4mm with 0.8mm ball pitch.
5. This package code is used to reference the package diagram.
6. This text does not indicate orientation of the actual part marking.
6.42
3
IDT70T16/5L
High-Speed 2.5V 16/8K x 9 Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Pin Names
Left Port
CE
L
R/W
L
OE
L
A
0L
- A
13L
(1)
I/O
0L
- I/O
8L
SEM
L
INT
L
BUSY
L
CE
R
R/W
R
OE
R
A
0R
- A
13R
(1)
I/O
0R
- I/O
8R
SEM
R
INT
R
BUSY
R
M/S
V
DD
V
SS
NOTE:
1. A
13
is a NC for IDT70T15.
Right Port
Names
Chip Enable
Read/Write Enable
Output Enable
Address
Data Input/Output
Semaphore Enable
Interrupt Flag
Busy Flag
Master or Slave Select
Power (2.5V)
Ground (0V)
5663 tbl 01
Truth Table I: Non-Contention Read/Write Control
Inputs
(1)
CE
H
L
L
X
R/W
X
L
H
X
OE
X
X
L
H
SEM
H
H
H
X
Outputs
I/O
0-8
High-Z
DATA
IN
DATA
OUT
High-Z
Deselcted: Power-Down
Write to Memory
Read Memory
Outputs Disabled
5663 tbl 02
Mode
NOTE:
1.
Condition: A
0L
— A
13L
≠
A
0R
— A
13R
Truth Table II: Semaphore Read/Write Control
(1)
Inputs
CE
H
H
L
R/W
H
↑
X
OE
L
X
X
SEM
L
L
L
Outputs
I/O
0-8
DATA
OUT
DATA
IN
____
Mode
Read Semaphore Flag Data Out (I/O
0
- I/O
8
)
Write I/O
0
into Semaphore Flag
Not Allowed
5663 tbl 03
NOTE:
1. There are eight semaphore flags written to via I/O
0
and read from all I/O
s
(I/O
0
-I/O
8
). These eight semaphores are addressed by A
0
- A
2.
4
6.42
IDT70T16/5L
High-Speed 2.5V 16/8K x 9 Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Absolute Maximum Ratings
(1)
Symbol
V
TERM(2)
T
BIAS
T
STG
T
JN
I
OUT
(3)
Rating
Terminal Voltage
with Respect to GND
Temperature Under Bias
Storage Temperature
Junction Temperature
DC Output Current
Commercial
& Industrial
-0.5 to +3.6
-55 to +125
-65 to +150
+150
50
Unit
V
o
Maximum Operating
Temperature and Supply Voltage
(1)
Grade
Commercial
Ambient
Temperature
0
O
C to +70
O
C
-40
O
C to +85
O
C
GND
0V
0V
V
DD
2.5V
+
100mV
2.5V
+
100mV
5663 tbl 05
C
C
C
Industrial
o
o
NOTES:
1. This is the parameter T
A
. This is the "instant on" case temperature.
mA
5663 tbl 04
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
DD
+ 0.3V.
3. Ambient Temperature Under Bias. No AC Conditions. Chip Deselected.
Recommended DC Operating
Conditions
Symbol
V
DD
V
SS
V
IH
V
IL
Parameter
Supply Voltage
Ground
Input High Voltage
Input Low Voltage
Min.
2.4
0
1.7
-0.3
(1)
Typ.
2.5
0
____
____
Max.
2.6
0
V
DD
+0.3
(2)
0.7
Unit
V
V
V
V
5663 tbl 06
Capacitance
(1)
(T
A
= +25°C, f = 1.0MHz)
Symbol
C
IN
C
OUT
(2)
Parameter
Input Capacitance
Output Capacitance
Conditions
V
IN
= 0V
V
OUT
= 0V
Max.
9
10
Unit
pF
pF
5663 tbl 07
NOTES:
1. V
IL
> -1.5V for pulse width less than 10ns.
2. V
TERM
must not exceed V
DD
+ 0.3V.
NOTES:
1. This parameter is determined by device characteristics but is not production
tested.
2. C
OUT
also references C
I/O
.
DC Electrical Characteristics Over the
Operating Temperature and Supply Voltage Range
(V
DD
= 2.5V ± 100mV)
70T16/5L
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
DD
= 2.6V, V
IN
= 0V to V
DD
CE
= V
IH
, V
OUT
= 0V to V
DD
I
OL
= +2mA
I
OH
= -2mA
Min.
___
___
___
Max.
5
5
0.4
___
Unit
µA
µA
V
V
5663 tbl 08
2.0
NOTE:
1. At V
DD
< 2.0V, Input leakages are undefined.
6.42
5
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