TC55V8512J/FT-12,-15
TOSHIBA MOS DIGITAL INTEGRATED CIRCUIT SILICON GATE CMOS
524,288-WORD BY 8-BIT CMOS STATIC RAM
DESCRIPTION
The TC55V8512J/FT is a 4,194,304-bit high-speed static random access memory (SRAM) organized as 524,288
words by 8 bits. Fabricated using CMOS technology and advanced circuit techniques to provide high speed, it
operates from a single 3.3 V power supply. Chip enable ( CE ) can be used to place the device in a low-power mode,
and output enable ( OE ) provides fast memory access. This device is well suited to cache memory applications
where high-speed access and high-speed storage are required. All inputs and outputs are directly LVTTL
compatible. The TC55V8512J/FT is available in plastic 36-pin SOJ and 44-pin TSOP with 400mil width for high
density surface assembly.
FEATURES
鈥?/div>
Fast access time (the following are maximum values)
TC55V8512J/FT-12:12 ns
TC55V8512J/FT-15:15 ns
Low-power dissipation
(the following are maximum values)
Cycle Time
Operation (max)
12
170
15
140
20
130
25
110
ns
mA
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
鈥?/div>
Single power supply voltage of 3.3 V
鹵
0.3 V
Fully static operation
All inputs and outputs are LVTTL compatible
Output buffer control using OE
Package:
SOJ36-P-400-1.27 (J)
(Weight: 1.35 g typ)
TSOP II44-P-400-0.80 (FT)
(Weight: 0.45 g typ)
Standby:4 mA (both devices)
PIN ASSIGNMENT
(TOP VIEW)
36 PIN SOJ
44 PIN TSOP
PIN NAMES
A0 to A18
NC
NC
A17
A3
A2
A1
A0
CE
I/O1
I/O2
V
DD
GND
I/O3
I/O4
WE
A16
A15
A14
A13
A18
NC
NC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
NC
NC
NC
A4
A5
A6
A7
OE
I/O8
I/O7
GND
V
DD
I/O6
I/O5
A8
A9
A10
A11
A12
NU
NC
NC
I/O1 to I/O8
CE
Address Inputs
Data Inputs/Outputs
Chip Enable Input
Write Enable Input
Output Enable Input
Power (+3.3 V)
Ground
No Connection
Not Usable (Input)
A17
A3
A2
A1
A0
CE
I/O1
I/O2
V
DD
GND
I/O3
I/O4
WE
A16
A15
A14
A13
A18
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
20
19
NC
A4
A5
A6
A7
OE
I/O8
I/O7
GND
V
DD
I/O6
I/O5
A8
A9
A10
A11
A12
NU
WE
OE
V
DD
GND
NC
NU
(TC55V8512J)
(TC55V8512FT)
2001-12-19
1/10
TC55V8512J-15相關(guān)型號(hào)PDF文件下載
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