参数资料
型号: IDT71V321S55PF8
厂商: IDT, Integrated Device Technology Inc
文件页数: 2/15页
文件大小: 0K
描述: IC SRAM 16KBIT 55NS 64TQFP
标准包装: 750
格式 - 存储器: RAM
存储器类型: SRAM - 双端口,异步
存储容量: 16K (2K x 8)
速度: 55ns
接口: 并联
电源电压: 3 V ~ 3.6 V
工作温度: 0°C ~ 70°C
封装/外壳: 64-LQFP
供应商设备封装: 64-TQFP(14x14)
包装: 带卷 (TR)
其它名称: 71V321S55PF8
IDT71V321/71V421S/L
High Speed 3.3V 2K x 8 Dual-Port Static RAM with Interrupts
Description
The IDT71V321/IDT71V421 are high-speed 2K x 8 Dual-Port
Static RAMs with internal interrupt logic for interprocessor communica-
tions. The IDT71V321 is designed to be used as a stand-alone 8-bit
Dual-Port RAM or as a "MASTER" Dual-Port RAM together with the
IDT71V421 "SLAVE" Dual-Port in 16-or-more-bit memory system ap-
plications results in full speed, error-free operation without the need for
additional discrete logic.
The 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
Pin Configurations (1,2,3)
INDEX
Industrial and Commercial Temperature Ranges
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 325mW of power. Low-power (L)
versions offer battery backup data retention capability, with each Dual-
Port typically consuming 200μW from a 2V battery.
The IDT71V321/IDT71V421 devices are packaged in a 52-pin
PLCC, a 64-pin TQFP (thin quad flatpack), and a 64-pin STQFP
(super thin quad flatpack).
A 1L
A 2L
46
8 7 6 5 4 3 2 1 52 51 50 49 48 47
9 45
OE R
A 0R
A 3L
A 4L
A 5L
10
11
12
44
43
42
A 1R
A 2R
A 3R
A 6L
A 7L
A 8L
A 9L
I/O 0L
I/O 1L
I/O 2L
13
14
15
16
17
18
19
IDT71V321/421J
J52-1 (4)
52-Pin PLCC
Top View (5)
41
40
39
38
37
36
35
A 4R
A 5R
A 6R
A 7R
A 8R
A 9R
NC
I/O 3L
20 34
21 22 23 24 25 26 27 28 29 30 31 32 33
I/O 7R
3026 drw 02
INDEX
,
OE L
A 0L
A 1L
A 2L
A 3L
1
2
3
4
5
48
47
46
45
44
OE R
A 0R
A 1R
A 2R
A 3R
A 4L
A 5L
A 6L
N/C
A 7L
A 8L
A 9L
N/C
6
7
8
9
10
11
12
13
IDT71V321/421PF or TF
PP64-1 (4)
&
PN64-1 (4)
64-Pin STQFP
64-Pin TQFP
Top View (5)
43
42
41
40
39
38
37
36
A 4R
A 5R
A 6R
N/C
A 7R
A 8R
A 9R
N/C
NOTES:
1. All V CC pins must be connected to power supply.
2. All GND pins must be connected to ground supply.
I/O 0L
I/O 1L
I/O 2L
14
15
16
35
34
33
N/C
I/O 7R
I/O 6R
3. J52-1 package body is approximately .75 in x .75 in x .17 in.
PP64-1 package body is approximately 10mm x 10mm x 1.4mm.
PN64-1 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.
6.42
3026 drw 03
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