CY7C146-25JC Cypress Semiconductor Corp, CY7C146-25JC Datasheet

IC SRAM 16KBIT 25NS 52PLCC

CY7C146-25JC

Manufacturer Part Number
CY7C146-25JC
Description
IC SRAM 16KBIT 25NS 52PLCC
Manufacturer
Cypress Semiconductor Corp
Datasheets

Specifications of CY7C146-25JC

Format - Memory
RAM
Memory Type
SRAM - Dual Port, Asynchronous
Memory Size
16K (2K x 8)
Speed
25ns
Interface
Parallel
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Package / Case
52-PLCC
Density
16Kb
Access Time (max)
25ns
Sync/async
Asynchronous
Architecture
SDR
Clock Freq (max)
Not RequiredMHz
Operating Supply Voltage (typ)
5V
Address Bus
22b
Package Type
PLCC
Operating Temp Range
0C to 70C
Number Of Ports
2
Supply Current
170mA
Operating Supply Voltage (min)
4.5V
Operating Supply Voltage (max)
5.5V
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
52
Word Size
8b
Number Of Words
2K
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Other names
428-1202

Available stocks

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Price
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Manufacturer:
CYPRESS
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1 980
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CY7C146-25JC
Manufacturer:
CY
Quantity:
426
Part Number:
CY7C146-25JC
Manufacturer:
Cypress Semiconductor Corp
Quantity:
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CY7C146-25JC
Quantity:
320
Part Number:
CY7C146-25JC
Manufacturer:
CYPRESS/赛普拉斯
Quantity:
20 000
Cypress Semiconductor Corporation
Document #: 38-06031 Rev. *A
Features
Notes:
1.
2.
• True Dual-Ported memory cells which allow simulta-
• 2K x 8 organization
• 0.65-micron CMOS for optimum speed/power
• High-speed access: 15 ns
• Low operating power: I
• Fully asynchronous operation
• Automatic power-down
• Master CY7C132/CY7C136 easily expands data bus
• BUSY output flag on CY7C132/CY7C136; BUSY input
• INT flag for port-to-port communication (52-pin
• Available in 48-pin DIP (CY7C132/142), 52-pin PLCC and
• Pin-compatible and functionally equivalent to
neous reads of the same memory location
width to 16 or more bits using slave CY7C142/CY7C146
on CY7C142/CY7C146
PLCC/PQFP versions)
52-pin TQFP (CY7C136/146)
IDT7132/IDT7142
Logic Block Diagram
CY7C132/CY7C136 (Master): BUSY is open drain output and requires pull-up resistor.
CY7C142/CY7C146 (Slave): BUSY is input.
Open drain outputs; pull-up resistor required.
BUSY
INT
R/W
I/O
I/O
A
CE
OE
A
L
L
10L
[1]
7L
0L
[2]
0L
L
L
L
DECODER
ADDRESS
R/W
CC
CE
OE
L
L
L
CONTROL
= 110 mA (max.)
I/O
(7C132/7C136 ONLY)
(7C136/7C146 ONLY)
INTERRUPTLOGIC
ARBITRA TION
MEMORY
ARRAY
LOGIC
AND
3901 North First Street
CONTROL
I/O
DECODER
ADDRESS
CE
OE
R/W
R
R
R
Functional Description
The
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.
2K x 8 Dual-Port Static RAM
CY7C132/CY7C136/CY7C142
San Jose
A
INT
R/W
CE
OE
I/O
I/O
BUSY
A
10R
0R
R
7R
0R
R
R
R
[2]
R
[1]
,
CA 95134
CY7C132/CY7C136
CY7C142/CY7C146
Pin Configuration
BUSY
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
R/W
A
GND
OE
CE
10L
A
A
A
A
A
A
A
A
A
A
0L
1L
2L
3L
4L
5L
6L
7L
Revised August 29, 2003
0L
1L
2L
3L
4L
5L
6L
7L
8L
9L
L
L
L
L
and
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Top View
7C132
7C142
DIP
CY7C146
408-943-2600
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
CE
R/W
A
OE
A
A
A
A
A
A
A
A
A
A
I/O
I/O
I/O
I/O
I/O
I/O
I/O
I/O
BUSY
CC
10R
0R
1R
2R
3R
4R
5R
6R
7R
8R
9R
7R
6R
5R
4R
3R
2R
1R
0R
R
R
R
R
are

Related parts for CY7C146-25JC

CY7C146-25JC Summary of contents

Page 1

... CC • Fully asynchronous operation • Automatic power-down • Master CY7C132/CY7C136 easily expands data bus width 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) • ...

Page 2

... I [3] 7C132-25 7C132-30 7C136-25 7C136-30 [3] 7C136-15 7C142-25 7C142-30 7C146-15 7C146-25 7C146- 190 170 170 CY7C132/CY7C136 CY7C142/CY7C146 PQFP Top View 7C136 33 7C146 1415 7C132-35 7C132-45 7C132-55 7C136-35 7C136-45 7C136-55 7C142-35 7C142-45 7C142-55 7C146-35 7C146-45 7C146- 120 120 110 170 170 ...

Page 3

... V < Mil [8] MAX Test Conditions MHz 5.0V CC and using AC Test Waveforms input levels of GND to 3V. rc CY7C132/CY7C136 CY7C142/CY7C146 Ambient Temperature 0°C to +70°C –40°C to +85–C [4] –55°C to +125°C [3] 7C132-30 7C132-35,45 7C136-25,30 7C136-35,45 [3] 7C142-30 7C142-35,45 7C146-25,30 7C146-35,45 2.4 2.4 ...

Page 4

... HZCE LZCE are tested with C = 5pF Test Loads. Transition is measured ±500 mV from steady-state voltage. L CY7C132/CY7C136 CY7C142/CY7C146 5V 281 BUSY OR INT 30 pF BUSY Output Load (CY7C132/CY7C136 Only) ALL INPUT PULSES 90% 90% 10% < [5, 10] [3] 7C132-25 7C132-30 7C136-25 7C136-30 7C142-25 ...

Page 5

... These parameters are measured from the input signal changing, until the output pin goes to a high-impedance state. 16. CY7C142/CY7C146 only. 17. A write operation on Port A, where Port A has priority, leaves the data on Port B’s outputs undisturbed until one access time after one of the following: BUSY on Port B goes HIGH. Port B’ ...

Page 6

... CE to INTERRUPT Reset Time EINR t Address to INTERRUPT Reset Time INR Document #: 38-06031 Rev. *A 7C132-35 7C136-35 7C142-35 7C146-35 Min. Max [ [15 [15 [16 Note 17 Note [15] 25 [15] 25 [15] 25 CY7C132/CY7C136 CY7C142/CY7C146 [5, 10] 7C132-45 7C132-55 7C136-45 7C136-55 7C142-45 7C142-55 7C146-45 7C146-55 Min. Max. Min. Max ...

Page 7

... Address valid prior to or coincident with CE transition LOW. Document #: 38-06031 Rev. *A [19, 20 [19, 21] t ACE t DOE t RC ADDRESS MATCH t PWE t PS ADDRESS MATCH t BLA and CY7C132/CY7C136 CY7C142/CY7C146 DATA VALID t HZCE t HZOE DATA VALID t PD VALID t BHA t BDD t DDD t WDD VALID Page ...

Page 8

... If the CE LOW transition occurs simultaneously with or after the R/W LOW transition, the outputs remain in a high-impedance state. Document #: 38-06031 Rev. *A [14, 22 SCE PWE t SD DATA VALID HIGH IMPEDANCE [14, 23 SCE PWE t SD DATA VALID t HZWE HIGH IMPEDANCE allow the data I/O pins to enter high impedance and for data PWE HZWE SD CY7C132/CY7C136 CY7C142/CY7C146 LZWE Page ...

Page 9

... Busy Timing Diagram No. 2 (Address Arbitration) Left Address ValidFirst: ADDRESS ADDRESS MATCH ADDRESS R BUSY R RightAddressValidFirst: ADDRESS ADDRESS MATCH ADDRESS L BUSY L Document #: 38-06031 Rev. *A ADDRESS MATCH BLC ADDRESS MATCH BLC ADDRESS MISMATCH t t BLA BHA ADDRESS MISMATCH t t BLA BHA CY7C132/CY7C136 CY7C142/CY7C146 t BHC t BHC Page ...

Page 10

... Switching Waveforms (continued) Busy Timing Diagram No. 3 (Write with BUSY, Slave: CY7C142/CY7C146 BUSY [18] Interrupt Timing Diagrams Left Side Sets INT : R ADDRESS R INT R Right Side Clears INT : R ADDRESS R INT R Right Side Sets INT : L ADDRESS R INT L Document #: 38-06031 Rev PWE t WC WRITE 7FF ...

Page 11

... AMBIENTTEMPERATURE(°C) TYPICAL ACCESS TIME CHANGE vs. OUTPUT LOADING 30.0 25.0 20.0 15.0 10.0 V =4.5V CC 5.0 T =25° 5.0 0 200 400 600 800 1000 CAPACITANCE (pF) CY7C132/CY7C136 CY7C142/CY7C146 t RC READ 7FE t INR t OINR OUTPUT SOURCE CURRENT vs. OUTPUT VOLTAGE 120 100 =5. =25° 125 0 1 ...

Page 12

... Molded DIP P25 48-Lead (600-Mil) Molded DIP D26 48-Lead (600-Mil) Sidebraze DIP P25 48-Lead (600-Mil) Molded DIP P25 48-Lead (600-Mil) Molded DIP D26 48-Lead (600-Mil) Sidebraze DIP CY7C132/CY7C136 CY7C142/CY7C146 Operating Range Commercial Industrial Commercial Industrial Military Commercial Industrial Military Commercial ...

Page 13

... Ordering Information (continued) Speed (ns) Ordering Code 15 CY7C146-15JC CY7C146-15NC 25 CY7C146-25JC CY7C146-25NC 30 CY7C146-30JC CY7C146-30NC CY7C146-30JI 35 CY7C146-35JC CY7C146-35NC CY7C146-35JI CY7C146-35LMB 45 CY7C146-45JC CY7C146-45NC CY7C146-45JI CY7C146-45LMB 55 CY7C146-55JC CY7C146-55NC CY7C146-55JI CY7C146-55LMB MILITARY SPECIFICATIONS Group A Subgroup Testing—DC Characteristics Parameter Max SB1 I SB2 I SB3 I SB4 Switching Characteristics Parameter ...

Page 14

... Package Diagrams Document #: 38-06031 Rev. *A 48-Lead (600-Mil) Sidebraze DIP D26 MIL-STD-1835 D-14 Config. C 52-Lead Plastic Leaded Chip Carrier J69 CY7C132/CY7C136 CY7C142/CY7C146 51-80044-** 51-85004-*A Page ...

Page 15

... Package Diagrams (continued) Document #: 38-06031 Rev. *A 52-Square Leadless Chip Carrier L69 52-Lead Plastic Quad Flatpack N52 CY7C132/CY7C136 CY7C142/CY7C146 51-80054-** 51-85042-** Page ...

Page 16

... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. 48-Lead (600-Mil) Molded DIP P25 CY7C132/CY7C136 CY7C142/CY7C146 51-85020-*A Page ...

Page 17

... Document History Page Document Title: CY7C132 / CY7C136 / CY7C142 / CY7C146 Dual Port Static RAM Document Number: 38-06031 REV. ECN NO. Issue Date ** 110171 10/21/01 *A 128959 9/03/03 Document #: 38-06031 Rev. *A Orig. of Change Description of Change SZV Change from Spec number: 38-06031 JFU Added CY7C136-55NI to Order Information ...

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