Features
HIGH-SPEED 2.5V
512/256K x 18
ASYNCHRONOUS DUAL-PORT
STATIC RAM
WITH 3.3V 0R 2.5V INTERFACE
IDT70T633/1S
u
True Dual-Port memory cells which allow simultaneous
access of the same memory location
u
High-speed access
Commercial: 8/10/12/15ns (max.)
Industrial: 10/12ns (max.)
u
RapidWrite Mode simplifies high-speed consecutive write
cycles
u
Dual chip enables allow for depth expansion without
external logic
u
IDT70T633/1 easily expands data bus width to 36 bits or
more using the Master/Slave select when cascading more
than one device
u
M/S = V
IH
for
BUSY
output flag on Master,
M/S = V
IL
for
BUSY
input on Slave
u
Busy and Interrupt Flags
u
Full hardware support of semaphore signaling between
ports on-chip
u
On-chip port arbitration logic
u
Fully asynchronous operation from either port
◆
Separate byte controls for multiplexed bus and bus
matching compatibility
u
Sleep Mode Inputs on both ports
u
Supports JTAG features compliant to IEEE 1149.1 in
BGA-208 and BGA-256 packages
u
Single 2.5V (±100mV) power supply for core
u
LVTTL-compatible, selectable 3.3V (±150mV)/2.5V (±100mV)
power supply for I/Os and control signals on each port
u
Available in a 256-ball Ball Grid Array, 144-pin Thin Quad
Flatpack and 208-ball fine pitch Ball Grid Array
u
Industrial temperature range (40°C to +85°C) is available
for selected speeds
UB
R
LB
R
Functional Block Diagram
UB
L
LB
L
R/
W
L
B
E
0
L
B
E
1
L
B
E
1
R
B
E
0
R
R/
W
R
CE
0L
CE
1L
CE
0R
CE
1R
OE
L
Dout0-8_L
Dout9-17_L
Dout0-8_R
Dout9-17_R
OE
R
512/256K x 18
MEMORY
ARRAY
I/O
0L
- I/O
17L
Din_L
Din_R
I/O
0R
- I/O
17R
A
18L
(1)
A
0L
Address
Decoder
ADDR_L
ADDR_R
Address
Decoder
A
18R
(1)
A
0R
TDI
OE
L
CE
0L
CE
1L
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
OE
R
CE
0R
CE
1R
TDO
JTAG
TCK
TMS
TRST
R/W
L
R/W
R
BUSY
L(2,3)
SEM
L
INT
L(3)
(4)
BUSY
R(2,3)
M/S
SEM
R
INT
R(3)
NOTES:
LOGIC
1. Address A
18
x is a NC for IDT70T631.
2.
BUSY
is an input as a Slave (M/S=V
IL
) and an output when it is a Master (M/S=V
IH
).
3
BUSY
and
INT
are non-tri-state totem-pole outputs (push-pull).
4. The sleep mode pin shuts off all dynamic inputs, except JTAG inputs, when asserted. OPTx,
INTx,
M/S and the
sleep mode pins themselves (ZZx) are not affected during sleep mode.
ZZ
L
ZZ
CONTROL
ZZ
R
(4)
5670 drw 01
APRIL 2004
DSC-5670/4
1
©2004 Integrated Device Technology, Inc.
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
The IDT70T633/1 is a high-speed 512/256K x 18 Asynchronous
Dual-Port Static RAM. The IDT70T633/1 is designed to be used as a
stand-alone 9216/4608K-bit Dual-Port RAM or as a combination MAS-
TER/SLAVE Dual-Port RAM for 36-bit-or-more word system. Using the
IDT MASTER/SLAVE Dual-Port RAM approach in 36-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
reads or writes to any location in memory. An automatic power down
Description
feature controlled by the chip enables (either
CE
0
or CE
1
) permit the
on-chip circuitry of each port to enter a very low standby power mode.
The IDT70T651/9 has a RapidWrite Mode which allows the designer
to perform back-to-back write operations without pulsing the R/W input
each cycle. This is especially significant at the 8 and 10ns cycle times of
the IDT70T651/9, easing design considerations at these high perfor-
mance levels.
The 70T633/1 can support an operating voltage of either 3.3V or 2.5V
on one or both ports, controlled by the OPT pins. The power supply for
the core of the device (V
DD
) remains at 2.5V.
2
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Pin Configuration
(1,2,3)
70T633/1BC
BC-256
(5,6)
256-Pin BGA
Top View
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
03/13/03
A1
NC
B1
TDI
B2
NC
B3
A
17L
B4
A
14L
B5
A
11L
B6
A
8L
B7
NC
B8
CE
1L
B9
OE
L
B10
INT
L
B11
A
5L
B12
A
2L
B13
A
0L
B14
NC
B15
NC
B16
NC
C1
NC
C2
TDO A
18L
(4)
A
15L
C3
C4
C5
A
12L
C6
A
9L
C7
UB
L
C8
CE
0L
R/W
L
C9
C10
NC
C11
A
4L
C12
A
1L
C13
NC
C14
NC
C15
NC
C16
NC
D1
I/O
9L
D2
V
SS
D3
A
16L
D4
A
13L
D5
A
10L
D6
A
7L
D7
NC
D8
LB
L
D9
SEM
L
BUSY
L
D10
D11
A
6L
D12
A
3L
D13
OPT
L
D14
NC
D15
I/O
8L
D16
NC
E1
I/O
9R
E2
NC
E3
V
DD
V
DDQL
E4
E5
V
DDQL
V
DDQR
V
DDQR
V
DDQL
V
DDQL
V
DDQR
V
DDQR
V
DD
E6
E7
E8
E9
E10
E11
E12
E13
NC
E14
NC
E15
I/O
8R
E16
I/O
10R
I/O
10L
F1
F2
NC
F3
V
DDQL
V
DD
F4
F5
V
DD
F6
V
SS
F7
V
SS
F8
V
SS
F9
V
SS
F10
V
DD
F11
V
DD
V
DDQR
F12
F13
NC
F14
I/O
7L
I/O
7R
F15
F16
I/O
11L
G1
NC
G2
I/O
11R
V
DDQL
V
DD
G3
G4
G5
NC
G6
V
SS
G7
V
SS
G8
V
SS
G9
V
SS
G10
V
SS
G11
V
DD
V
DDQR
I/O
6R
G12
G13
G14
NC
G15
I/O
6L
G16
NC
H1
NC
H2
I/O
12L
V
DDQR
V
SS
H3
H4
H5
V
SS
H6
V
SS
H7
V
SS
H8
V
SS
H9
V
SS
H10
V
SS
H11
V
SS
H12
V
DDQL
I/O
5L
H13
H14
NC
H15
NC
H16
NC
J1
I/O
12R
J2
J3
NC V
DDQR
V
SS
J4
J5
V
SS
J6
V
SS
J7
V
SS
J8
V
SS
J9
V
SS
J10
V
SS
J11
V
SS
J12
V
DDQL
J13
NC
J14
NC
J15
I/O
5R
J16
I/O
13L
I/O
14R
I/O
13R
V
DDQL
ZZ
R
K1
K2
K3
K4
K5
V
SS
K6
V
SS
K7
V
SS
K8
V
SS
K9
V
SS
K10
V
SS
K11
ZZ
L
V
DDQR
I/O
4R
I/O
3R
I/O
4L
K12
K13
K14
K15
K16
NC
L1
NC
L2
I/O
14L
L3
V
DDQL
V
SS
L4
L5
V
SS
L6
V
SS
L7
V
SS
L8
V
SS
L9
V
SS
L10
V
SS
L11
V
SS
L12
V
DDQR
NC
L13
L14
NC
L15
I/O
3L
L16
I/O
15L
M1
NC
M2
I/O
15R
V
DDQR
V
DD
M3
M4
M5
NC
M6
V
SS
M7
V
SS
M8
V
SS
M9
V
SS
M10
V
SS
M11
V
DD
M12
V
DDQL
I/O
2L
M13
M14
NC
M15
I/O
2R
M16
I/O
16R
I/O
16L
N1
N2
NC
N3
V
DDQR
N4
V
DD
N5
V
DD
N6
V
SS
N7
V
SS
N8
V
SS
N9
V
SS
N10
V
DD
N11
V
DD
V
DDQL
I/O
1R
I/O
1L
N12
N13
N14
N15
NC
N16
NC
P1
I/O
17R
P2
NC
P3
V
DD
V
DDQR
V
DDQR
V
DDQL
V
DDQL
V
DDQR
V
DDQR
V
DDQL
V
DDQL
V
DD
P4
P5
P6
P7
P8
P9
P10
P11
P12
P13
NC
P14
I/O
0R
P15
NC
P16
NC
R1
I/O
17L
TMS
R2
R3
A
16R
R4
A
13R
R5
A
10R
R6
A
7R
R7
NC
R8
LB
R
SEM
R
BUSY
R
A
6R
R9
R10
R11
R12
A
3R
R13
NC
R14
NC
R15
I/O
0L
R16
NC
T1
NC
T2
TRST
T3
A
18R
(4)
T4
A
15R
T5
A
12R
T6
A
9R
T7
UB
R
T8
CE
0R
R/W
R
T9
T10
M/S
T11
A
4R
T12
A
1R
T13
OPT
R
T14
NC
T15
NC
T16
,
NC
TCK
NC
A
17R
A
14R
A
11R
A
8R
NC
CE
1R
OE
R
INT
R
A
5R
A
2R
A
0R
NC
NC
5670 drw 02c
NOTES:
1. All V
DD
pins must be connected to 2.5V power supply.
2. All V
DDQ
pins must be connected to appropriate power supply: 3.3V if OPT pin for that port is set to V
DD
(2.5V), and 2.5V if OPT pin for that port is
set to V
SS
(0V).
3. All V
SS
pins must be connected to ground supply.
4. A
18
X
is a NC for IDT70T631.
5. Package body is approximately 17mm x 17mm x 1.4mm, with 1.0mm ball-pitch.
6. This package code is used to reference the package diagram.
,
3
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Pin Configurations
(1,2,3,8)
(con't.)
03/13/03
V
SS
V
DDQR
V
SS
I/O
9L
I/O
9R
I/O
10L
I/O
10R
I/O
11L
I/O
11R
V
DDQL
V
SS
I/O
12L
I/O
12R
V
DDQR
ZZ
R
V
DD
V
DD
V
SS
V
SS
V
DDQL
V
SS
I/O
13R
I/O
13L
I/O
14R
I/O
14L
V
DDQR
V
SS
I/O
15R
I/O
15L
I/O
16R
I/O
16L
I/O
17R
I/O
17L
V
SS
V
DDQL
NC
144
143
142
141
140
139
138
137
136
135
134
133
132
131
130
129
128
127
126
125
124
123
122
121
120
119
118
117
116
115
114
113
112
111
110
109
V
DD
NC
NC
A
18L
(4)
A
17L
A
16L
A
15L
A
14L
A
13L
A
12L
A
11L
A
10L
A
9L
A
8L
A
7L
UB
L
LB
L
CE
1L
CE
0L
V
DD
V
SS
SEM
L
OE
L
R/W
L
BUSY
L
INT
L
NC
A
6L
A
5L
A
4L
A
3L
A
2L
A
1L
A
0L
V
DD
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
70T633/1DD
DD-144
(5,6,7)
144-Pin TQFP
Top View
(8)
108
107
106
105
104
103
102
101
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
74
73
OPT
L
V
DDQR
V
SS
I/O
8L
I/O
8R
I/O
7L
I/O
7R
I/O
6L
I/O
6R
V
SS
V
DDQL
I/O
5L
I/O
5R
V
SS
V
DDQR
V
DD
V
DD
V
SS
V
SS
ZZ
L
V
DDQL
I/O
4R
I/O
4L
I/O
3R
I/O
3L
V
SS
V
DDQR
I/O
2R
I/O
2L
I/O
1R
I/O
1L
I/O
0R
I/O
0L
V
SS
V
DDQL
OPT
R
,
V
DD
NC
NC
A
18R
(4)
A
17R
A
16R
A
15R
A
14R
A
13R
A
12R
A
11R
A
10R
A
9R
A
8R
A
7R
UB
R
LB
R
CE
1R
CE
0R
V
DD
V
SS
SEM
R
OE
R
R/W
R
BUSY
R
INT
R
M/S
A
6R
A
5R
A
4R
A
3R
A
2R
A
1R
A
0R
V
DD
V
SS
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
5670 drw 02a
NOTES:
1. All V
DD
pins must be connected to 2.5V power supply.
2. All V
DDQ
pins must be connected to appropriate power supply: 3.3V if OPT pin for that port is set to V
DD
(2.5V), and 2.5V if OPT pin for that port is
set to V
SS
(0V).
3. All V
SS
pins must be connected to ground.
4. A
18
X
is a NC for IDT70T631.
5. Package body is approximately 20mm x 20mm x 1.4mm.
6. This package code is used to reference the package diagram.
7. 8ns Commercial and 10ns Industrial speed grades are not available in the DD-144 package.
8. This text does not indicate orientation of the actual part-marking.
9. Due to the restricted number of pins, JTAG is not supported in the DD-144 package.
4
IDT70T633/1S
High-Speed 2.5V 512/256K x 18 Asynchronous Dual-Port Static RAM
Industrial and Commercial Temperature Ranges
Pin Configurations
(1,2,3)
(con't.)
03/12/03
1
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
I/O
9L
2
NC
3
V
SS
4
TDO
5
NC
6
A
16L
7
A
12L
8
A
8L
9
NC
10 11
V
DD
12
INT
L
13 14 15 16 17
A
4L
A
0L
OPT
L
NC
V
SS
SEM
L
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
T
U
NC
V
SS
NC
TDI
A
17L
A
13L
A
9L
NC
CE
0L
V
SS
BUSY
L
A
5L
A
1L
V
SS
V
DDQR
I/O
8L
NC
V
DDQL
I/O
9R
V
DDQR
V
DD
A
18L
(4)
A
14L
A
10L
UB
L
CE
1L
V
SS
R/
W
L
A
6L
A
2L
V
DD
I/O
8R
NC
V
SS
NC
V
SS
I/O
10L
NC
A
15L
A
11L
A
7L
LB
L
V
DD
OE
L
NC
A
3L
V
DD
NC
V
DDQL
I/O
7L
I/O
7R
I/O
11L
NC
V
DDQR
I/O
10R
I/O
6L
NC
V
SS
NC
V
DDQL
I/O
11R
NC
V
SS
V
SS
I/O
6R
NC
V
DDQR
NC
V
SS
I/O
12L
NC
NC
V
DDQL
I/O
5L
NC
V
DD
NC
V
DDQR
I/O
12R
70T633/1BF
BF-208
(5,6)
208-Ball BGA
Top View
(7)
V
DD
NC
V
SS
I/O
5R
V
DDQL
V
DD
V
SS
ZZ
R
ZZ
L
V
DD
V
SS
V
DDQR
I/O
14R
V
SS
I/O
13R
V
SS
I/O
3R
V
DDQL
I/O
4R
V
SS
NC
I/O
14L
V
DDQR
I/O
13L
NC
I/O
3L
V
SS
I/O
4L
V
DDQL
NC
I/O
15R
V
SS
V
SS
NC
I/O
2R
V
DDQR
NC
V
SS
NC
I/O
15L
I/O
1R
V
DDQL
NC
I/O
2L
I/O
16R
I/O
16L
V
DDQR
NC
TRST
A
16R
A
12R
A
8R
NC
V
DD
SEM
R
INT
R
A
4R
NC
I/O
1L
V
SS
NC
V
SS
NC
I/O
17R
TCK
A
17R
A
13R
A
9R
NC
CE
0R
V
SS
BUSY
R
R/
W
R
A
5R
A
1R
V
SS
V
DDQL
I/O
0R
V
DDQR
NC
I/O
17L
V
DDQL
TMS
A
18R
(4)
A
14R
A
10R
UB
R
CE
1R
V
SS
A
6R
A
2R
V
SS
NC
V
SS
NC
V
SS
NC
V
DD
NC
A
15R
A
11R
A
7R
LB
R
V
DD
OE
R
M/
S
A
3R
A
0R
V
DD
OPT
R
NC
I/O
0L
5670 drw 02b
NOTES:
1. All V
DD
pins must be connected to 2.5V power supply.
2. All V
DDQ
pins must be connected to appropriate power supply: 3.3V if OPT pin for that port is set to V
DD
(2.5V), and 2.5V if OPT pin for that port is
set to V
SS
(0V).
3. All V
SS
pins must be connected to ground.
4. A
18
X
is a NC for IDT70T631.
5. Package body is approximately 15mm x 15mm x 1.4mm with 0.8mm ball pitch.
6. This package code is used to reference the package diagram.
7. This text does not indicate orientation of the actual part-marking.
5
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