Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

CY7C028-15AXC Datasheet(PDF) 2 Page - Cypress Semiconductor

Part # CY7C028-15AXC
Description  32K/64K x 16/18 Dual-Port Static RAM
Download  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C028-15AXC Datasheet(HTML) 2 Page - Cypress Semiconductor

  CY7C028-15AXC Datasheet HTML 1Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 2Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 3Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 4Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 5Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 6Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 7Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 8Page - Cypress Semiconductor CY7C028-15AXC Datasheet HTML 9Page - Cypress Semiconductor Next Button
Zoom Inzoom in Zoom Outzoom out
 2 / 20 page
background image
CY7C027/028
CY7C037/038
Document #: 38-06042 Rev. *C
Page 2 of 20
Functional Description
The CY7C027/028 and CY7C037/038 are low-power CMOS
32K, 64K x 16/18 dual-port static RAMs. Various arbitration
schemes are included on the devices to handle situations
when multiple processors access the same piece of data. Two
ports are provided, permitting independent, asynchronous
access for reads and writes to any location in memory. The
devices can be utilized as standalone 16/18-bit dual-port static
RAMs or multiple devices can be combined in order to function
as a 32/36-bit or wider master/slave dual-port static RAM. An
M/S pin is provided for implementing 32/36-bit or wider
memory applications without the need for separate master and
slave devices or additional discrete logic. Application areas
include interprocessor/multiprocessor designs, communica-
tions status buffering, and dual-port video/graphics memory.
Each port has independent control pins: dual chip enables
(CE0 and CE1), read or write enable (R/W), and output enable
(OE). Two flags are provided on each port (BUSY and INT).
BUSY signals that the port is trying to access the same
location currently being accessed by the other port. The
interrupt flag (INT) permits communication between ports or
systems by means of a mail box. The semaphores are used to
pass a flag, or token, from one port to the other to indicate that
a shared resource is in use. The semaphore logic is comprised
of eight shared latches. Only one side can control the latch
(semaphore) at any time. Control of a semaphore indicates
that a shared resource is in use. An automatic power-down
feature is controlled independently on each port by the chip
enable pins.
The CY7C027/028 and CY7C037/038 are available in 100-pin
Thin Quad Plastic Flatpack (TQFP) packages.
Pin Configurations
100-Pin TQFP (Top View)
Note:
6. This pin is NC for CY7C027.
1
3
2
92 91 90
84
85
87 86
88
89
83 82 81
76
78 77
79
80
93
94
95
96
97
98
99
100
59
60
61
67
66
64
65
63
62
68
69
70
75
73
74
72
71
A9R
A10R
A11R
A12R
A13R
A14R
UBR
NC
LBR
CE1R
SEMR
OER
GND
NC
A15R
GND
R/WR
GND
I/O15R
I/O14R
I/O13R
I/O12R
I/O11R
I/O10R
CE0R
58
57
56
55
54
53
52
51
CY7C027 (32K x 16)
A9L
A10L
A11L
A12L
A13L
A14L
UBL
NC
LBL
CE1L
SEML
OEL
GND
NC
A15L
VCC
R/WL
GND
I/O15L
I/O14L
I/O13L
I/O12L
I/O11L
I/O10L
CE0L
17
16
15
9
10
12
11
13
14
8
7
6
4
5
18
19
20
21
22
23
24
25
34 35 36
42
41
39 40
38
37
43 44 45
50
48 49
47
46
33
32
31
30
29
28
27
26
CY7C028 (64K x 16)
[6]
[6]


Similar Part No. - CY7C028-15AXC

ManufacturerPart #DatasheetDescription
logo
Cypress Semiconductor
CY7C028-15AC CYPRESS-CY7C028-15AC Datasheet
256Kb / 19P
   32K/64K x 16/18 Dual-Port Static RAM
More results

Similar Description - CY7C028-15AXC

ManufacturerPart #DatasheetDescription
logo
Cypress Semiconductor
CY7C027 CYPRESS-CY7C027 Datasheet
256Kb / 19P
   32K/64K x 16/18 Dual-Port Static RAM
CY7C027V CYPRESS-CY7C027V Datasheet
236Kb / 18P
   3.3V 32K/64K x 16/18 Dual-Port Static RAM
CY7C09279 CYPRESS-CY7C09279 Datasheet
342Kb / 18P
   32K/64K X 16/18 Synchronous Dual Port Static RAM
CY7C027V CYPRESS-CY7C027V_09 Datasheet
472Kb / 18P
   3.3V 32K/64K x 16/18 Dual-Port Static RAM
CY7C027V CYPRESS-CY7C027V_12 Datasheet
336Kb / 22P
   3.3 V 32K/64K x 16/18 Dual-Port Static RAM
CY7C09269V CYPRESS-CY7C09269V_05 Datasheet
758Kb / 19P
   3.3V 16K/32K/64K x 16/18 Synchronous Dual-Port Static RAM
CY7C09269V CYPRESS-CY7C09269V Datasheet
348Kb / 19P
   3.3V 16K/32K/64K x 16/18 Synchronous Dual-Port Static RAM
CY7C09279 CYPRESS-CY7C09279_02 Datasheet
350Kb / 18P
   32K/64K x16/18 Synchronous Dual Port Static RAM
logo
Integrated Device Techn...
IDT7038L IDT-IDT7038L Datasheet
155Kb / 17P
   HIGH - SPEED 64K x 18 DUAL - PORT STATIC RAM
IDT7038L IDT-IDT7038L_18 Datasheet
182Kb / 17P
   HIGH-SPEED 64K x 18 DUAL-PORT STATIC RAM
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com