70V28L20PFI IDT, Integrated Device Technology Inc, 70V28L20PFI Datasheet - Page 2

• Manufacturer Part Number: 70V28L20PFI
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of 70V28L20PFI

• Density: 1Mb
• Access Time (max): 20ns
• Sync/async: Asynchronous
• Architecture: Not Required
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 3.3V
• Address Bus: 16b
• Package Type: TQFP
• Operating Temp Range: -40C to 85C
• Number Of Ports: 2
• Supply Current: 220mA
• Operating Supply Voltage (min): 3V
• Operating Supply Voltage (max): 3.6V
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Word Size: 16b
• Number Of Words: 64K
• Lead Free Status / Rohs Status: Not Compliant

Description
The IDT70V28 is designed to be used as a stand-alone 1024K-bit
Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM
for 32-bit-or-more word system. Using the IDT MASTER/SLAVE Dual-
Port RAM approach in 32-bit or wider memory system applications
results in full-speed, error-free operation without the need for addi-
tional discrete logic.
address, and I/O pins that permit independent, asynchronous access
Pin Configurations
NOTES:
1. All Vcc pins must be connected to power supply.
2. All GND pins must be connected to ground.
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.
IDT70V28L
High-Speed 3.3V 64K x 16 Dual-Port Static RAM
The IDT70V28 is a high-speed 64K x 16 Dual-Port Static RAM.
This device provides two independent ports with separate control,
INDEX
I/O
I/O
I/O
I/O
I/O
I/O
SEM
R/W
CE
CE
GND
GND
A
A
A
A
A
A
OE
UB
LB
Vcc
A
NC
NC
10L
11L
12L
13L
14L
15L
14L
13L
12L
11L
10L
15L
9L
0L
1L
L
L
L
L
L
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
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
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
(1,2,3)
100-Pin TQFP
IDT70V28PF
Top View
PN100-1
2
for reads or writes to any location in memory. An automatic power
down feature controlled by the chip enables (either CE
permit the on-chip circuitry of each port to enter a very low standby
power mode.
(TQFP).
these devices typically operate on only 440mW of power.
(4)
(5)
Fabricated using IDT’s CMOS high-performance technology,
The IDT70V28 is packaged in a 100-pin Thin Quad Flatpack
Industrial and Commercial Temperature Ranges
75
74
73
72
71
70
69
68
67
66
65
64
63
62
61
60
59
58
57
56
55
54
53
52
51
4849 drw 02
A
A
A
A
A
NC
NC
LB
UB
CE
CE
SEM
GND
R/W
OE
GND
GND
I/O
I/O
I/O
I/O
I/O
I/O
A
A
9R
10R
11R
12R
13R
14R
15R
R
R
R
0R
15R
14R
13R
12R
11R
10R
1R
R
R
0
or CE
1
)