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CY7C136-55LMB

产品描述SRAM
产品类别存储    存储   
文件大小351KB,共18页
制造商e2v technologies
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CY7C136-55LMB概述

SRAM

CY7C136-55LMB规格参数

参数名称属性值
厂商名称e2v technologies
包装说明QCCN, LCC52,.75SQ
Reach Compliance Codecompliant
最长访问时间55 ns
其他特性AUTOMATIC POWER-DOWN; INTERRUPT FLAG
I/O 类型COMMON
JESD-30 代码S-XQCC-N52
长度19.1135 mm
内存密度16384 bit
内存集成电路类型DUAL-PORT SRAM
内存宽度8
功能数量1
端口数量2
端子数量52
字数2048 words
字数代码2000
工作模式ASYNCHRONOUS
最高工作温度125 °C
最低工作温度-55 °C
组织2KX8
输出特性3-STATE
可输出YES
封装主体材料UNSPECIFIED
封装代码QCCN
封装等效代码LCC52,.75SQ
封装形状SQUARE
封装形式CHIP CARRIER
并行/串行PARALLEL
座面最大高度2.54 mm
最大待机电流0.045 A
最小待机电流4.5 V
最大压摆率0.12 mA
最大供电电压 (Vsup)5.5 V
最小供电电压 (Vsup)4.5 V
标称供电电压 (Vsup)5 V
表面贴装YES
技术CMOS
温度等级MILITARY
端子形式NO LEAD
端子节距1.27 mm
端子位置QUAD
宽度19.1135 mm

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CY7C132/CY7C136
CY7C142/CY7C146
2K x 8 Dual-Port Static RAM
Features
• True Dual-Ported memory cells which allow simulta-
neous reads of the same memory location
• 2K x 8 organization
• 0.65-micron CMOS for optimum speed/power
• High-speed access: 15 ns
• Low operating power: I
CC
= 110 mA (max.)
• Fully asynchronous operation
• Automatic power-down
• Master CY7C132/CY7C136 easily expands data bus
width to 16 or more bits using slave CY7C142/CY7C146
• BUSY output flag on CY7C132/CY7C136; BUSY input
on CY7C142/CY7C146
• INT flag for port-to-port communication (52-pin
PLCC/PQFP versions)
• Available in 48-pin DIP (CY7C132/142), 52-pin PLCC and
52-pin TQFP (CY7C136/146)
Functional Description
The CY7C132/CY7C136/CY7C142 and CY7C146 are
high-speed CMOS 2K by 8 dual-port static RAMs. Two ports
are provided to permit independent access to any location in
memory. The CY7C132/ CY7C136 can be utilized as either a
standalone 8-bit dual-port static RAM or as a MASTER
dual-port RAM in conjunction with the CY7C142/CY7C146
SLAVE dual-port device in systems requiring 16-bit or greater
word widths. It is the solution to applications requiring shared
or buffered data such as cache memory for DSP, bit-slice, or
multiprocessor designs.
Each port has independent control pins; chip enable (CE),
write enable (R/W), and output enable (OE). BUSY flags are
provided on each port. In addition, an interrupt flag (INT) is
provided on each port of the 52-pin PLCC version. BUSY
signals that the port is trying to access the same location
currently being accessed by the other port. On the PLCC
version, INT is an interrupt flag indicating that data has been
placed in a unique location (7FF for the left port and 7FE for
the right port).
An automatic power-down feature is controlled independently
on each port by the chip enable (CE) pins.
The CY7C132/CY7C142 are available in 48-pin DIP. The
CY7C136/CY7C146 are available in 52-pin PLCC and PQFP.
Logic Block Diagram
R/W
L
CE
L
OE
L
R/W
R
CE
R
OE
R
Pin Configuration
DIP
Top View
CE
L
R/W
L
BUSY
L
A
10L
OE
L
A
0L
A
1L
A
2L
A
3L
A
4L
A
5L
A
6L
A
7L
A
8L
A
9L
I/O
0L
I/O
1L
I/O
2L
I/O
3L
I/O
4L
I/O
5L
I/O
6L
I/O
7L
GND
1
2
3
4
5
6
7
8
9
10
11
12 7C132
13 7C142
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
V
CC
CE
R
R/W
R
BUSY
R
A
10R
OE
R
A
0R
A
1R
A
2R
A
3R
A
4R
A
5R
A
6R
A
7R
A
8R
A
9R
I/O
7R
I/O
6R
I/O
5R
I/O
4R
I/O
3R
I/O
2R
I/O
1R
I/O
0R
I/O
7L
I/O
0L
BUSY
[1]
L
I/O
CONTROL
I/O
CONTROL
I/O
7R
I/O
0R
BUSY
R
[1]
A
10L
A
0L
ADDRESS
DECODER
MEMORY
ARRAY
ADDRESS
DECODER
A
10R
A
0R
CE
L
OE
L
R/W
L
INT
L
[2]
ARBITRA
TION
LOGIC
(7C132/7C136 ONLY)
AND
INTERRUPTLOGIC
(7C136/7C146 ONLY)
CE
R
OE
R
R/W
R
INT
R
[2]
Notes:
1. CY7C132/CY7C136 (Master): BUSY is open drain output and requires pull-up resistor.
CY7C142/CY7C146 (Slave): BUSY is input.
2. Open drain outputs; pull-up resistor required.
Cypress Semiconductor Corporation
Document #: 38-06031 Rev. *B
3901 North First Street
San Jose
,
CA 95134
408-943-2600
Revised June 21, 2004

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