CY7C146-55JC Cypress Semiconductor Corp, CY7C146-55JC Datasheet

CY7C146-55JC

Manufacturer Part Number
CY7C146-55JC
Description
Manufacturer
Cypress Semiconductor Corp
Datasheet

Specifications of CY7C146-55JC

Density
16Kb
Access Time (max)
55ns
Sync/async
Asynchronous
Architecture
Not Required
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
110mA
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
Not Compliant

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Manufacturer
Quantity
Price
Part Number:
CY7C146-55JC
Manufacturer:
CYPRESS
Quantity:
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Part Number:
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Manufacturer:
CY
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CY7C146-55JC
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CYP
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Part Number:
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Manufacturer:
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Quantity:
20 000
Part Number:
CY7C146-55JCT
Manufacturer:
CYPRESS
Quantity:
900
Features
Notes
Cypress Semiconductor Corporation
Document #: 38-06031 Rev. *E
1. CY7C136 and CY7C136A are functionally identical.
2. CY7C132/CY7C136/CY7C136A (Master): BUSY is open drain output and requires pull up resistor. CY7C142/CY7C146 (Slave): BUSY is input.
3. Open drain outputs; pull up resistor required.
True dual-ported memory cells that enable simultaneous reads
of the same memory location
2K x 8 organization
0.65 micron CMOS for optimum speed and power
High speed access: 15 ns
Low operating power: I
Fully asynchronous operation
Automatic power down
Master CY7C132/CY7C136/CY7C136A
bus width to 16 or more bits using slave CY7C142/CY7C146
BUSY output flag on CY7C132/CY7C136/CY7C136A;
BUSY input on CY7C142/CY7C146
INT flag for port to port communication (52-Pin PLCC/PQFP
versions)
CY7C136, CY7C136A, and CY7C146 available in 52-pin
PLCC and 52-pin PQFP packages
Pb-free packages available
Logic Block Diagram
BUSY
CC
INT
R/W
I/O
I/O
A
OE
CE
A
L
L
10L
[2]
7L
0L
= 110 mA (maximum)
[3]
0L
L
L
L
[1]
DECODER
ADDRESS
easily expands data
R/W
CE
OE
198 Champion Court
L
L
L
CONTROL
I/O
(7C132/7C136 ONLY)
(7C136/7C146 ONLY)
INTERRUPTLOGIC
ARBITRATION
MEMORY
ARRAY
LOGIC
AND
Functional Description
The CY7C132, CY7C136, CY7C136A, CY7C142, and CY7C146
are high speed CMOS 2K x 8 dual-port static RAMs. Two ports
are provided to permit independent access to any location in
memory. The CY7C132, CY7C136, and CY7C136A can be used
as either a standalone 8-bit dual-port static RAM or as a
MASTER
CY7C142/CY7C146 SLAVE dual-port device. They are used in
systems that require 16-bit or greater word widths. This is the
solution to applications that require 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 is placed in an 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.
CONTROL
2K x 8 Dual-Port Static RAM
I/O
DECODER
San Jose
ADDRESS
CE
OE
R/W
CY7C136A, CY7C142, CY7C146
dual-port
R
R
R
,
CA 95134-1709
RAM,
CY7C132, CY7C136
A
INT
R/W
CE
OE
I/O
I/O
BUSY
A
0R
10R
in
R
R
7R
0R
R
R
[3]
R
[2]
conjunction
Revised March 24, 2009
408-943-2600
with
the
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Related parts for CY7C146-55JC

CY7C146-55JC Summary of contents

Page 1

... INT L Notes 1. CY7C136 and CY7C136A are functionally identical. 2. CY7C132/CY7C136/CY7C136A (Master): BUSY is open drain output and requires pull up resistor. CY7C142/CY7C146 (Slave): BUSY is input. 3. Open drain outputs; pull up resistor required. Cypress Semiconductor Corporation Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 Dual-Port Static RAM ...

Page 2

... Selection Guide Specification Maximum Access Time Maximum Operating Current Com’l/Ind Maximum Standby Current Com’l/Ind Shaded areas contain preliminary information. Note and 25 ns version available in PQFP and PLCC packages only. Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 Figure 2. 52-Pin PQFP (Top View ...

Page 3

... Duration of the short circuit should not exceed 30 seconds address and data inputs are cycling at the maximum frequency of read cycle of 1/t MAX Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 DC Input Voltage ................................................. −3.5V to +7.0V Output Current into Outputs (LOW)............................. 20 mA Static Discharge Voltage.......................................... > 2001V (per MIL-STD-883, Method 3015) Latch up Current.................................................... > ...

Page 4

... At any given temperature and voltage condition for any given device and t are tested with C LZCE LZWE HZOE LZOE, HZCE, HZWE voltage. Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 Test Conditions T = 25° MHz 5. Figure 3. AC Test Loads and Waveforms R1 893Ω 5V OUTPUT 347Ω INCLUDING JIG AND ...

Page 5

... 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’s address toggled. CE for Port B is toggled. R/W for Port B is toggled during valid read. 16. 52-pin PLCC and PQFP versions only. Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 [8] (continued) 7C132-25 [4] 7C136-15 7C146-15 ...

Page 6

... R/W LOW after BUSY LOW WB t R/W HIGH after BUSY HIGH WH t BUSY HIGH to Valid Data BDD t Write Data Valid to Read Data Valid DDD t Write Pulse to Data Delay WDD Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 [8] 7C132-35 7C136-35 7C142-35 7C146-35 Min Max ...

Page 7

... Figure 5. Read Cycle No. 2 (Either Port-CE/ LZOE t LZCE DATA OUT Notes 17. R/W is HIGH for read cycle. 18. Device is continuously selected and 19. Address valid prior to or coincident with CE transition LOW. Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 [8] (continued) 7C132-35 7C136-35 7C142-35 7C146-35 Min Max [13] 25 [13] 25 [13 ...

Page 8

... OE t HZOE D OUT Note 20 LOW during a R/W controlled write cycle, the write pulse width must be the larger of t and for data to be placed on the bus for the required t Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 t RC ADDRESS MATCH t PWE VALID ADDRESS MATCH t ...

Page 9

... R CE Valid First: R ADDRESS L BUSY L Note 21. 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. *E CY7C136A, CY7C142, CY7C146 SCE PWE t SD DATA VALID t HZWE HIGH IMPEDANCE ADDRESS MATCH ...

Page 10

... Left Address Valid First: ADDRESS ADDRESS MATCH ADDRESS R BUSY R Right Address Valid First: ADDRESS ADDRESS MATCH ADDRESS L BUSY L Figure 11. Busy Timing Diagram No. 3 (Write with BUSY, Slave: CY7C142/CY7C146 BUSY Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 ADDRESS MISMATCH t t BLA BHA ...

Page 11

... INT R ADDRESS R INT L ADDRESS INT L Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 Figure 12. Left Side Sets INT WRITE 7FF t t INS HA t EINS t WINS Figure 13. Right Side Clears INT EINR Figure 14. Right Side Sets INT t WC WRITE 7FE t t INS HA t EINS ...

Page 12

... SUPPLY VOLTAGE (V) TYPICAL POWER-ON CURRENT vs. SUPPLY VOLTAGE 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0 1.0 2.0 3.0 4.0 SUPPLY VOLTAGE (V) Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 Figure 16. Typical DC and AC Characteristics NORMALIZED SUPPLY CURRENT vs. AMBIENT TEMPERATURE 1 1.0 0 5.0V IN 0.4 0.2 ...

Page 13

... CY7C146-25NC 30 CY7C146-30JC CY7C146-30NC CY7C146-30JI 35 CY7C146-35JC CY7C146-35NC CY7C146-35JI 45 CY7C146-45JC CY7C146-45NC CY7C146-45JI 55 CY7C146-55JC CY7C146-55JXC CY7C146-55NC CY7C146-55JI Document #: 38-06031 Rev. *E CY7C136A, CY7C142, CY7C146 Package Package Type Diagram 51-85004 52-Pin Plastic Leaded Chip Carrier 51-85042 52-Pin Plastic Quad Flatpack 51-85004 52-Pin Plastic Leaded Chip Carrier ...

Page 14

... Package Diagrams Figure 17. 52-Pin Plastic Leaded Chip Carrier, 51-85004 Figure 18. 52-Pin Plastic Quad Flatpack, 51-85042 Document #: 38-06031 Rev. *E CY7C132, CY7C136 CY7C136A, CY7C142, CY7C146 51-85004-*A 51-85042-** Page [+] Feedback ...

Page 15

... Document History Page Document Title: CY7C132, CY7C136, CY7C136A, CY7C142, CY7C146 Dual-Port Static RAM Document Number: 38-06031 Submission Orig. of Revision ECN Date Change ** 110171 10/21/01 *A 128959 09/03/03 *B 236748 See ECN *C 393184 See ECN *D 2623658 12/17/08 VKN/PYRS Added CY7C136-25JXI part *E 2678221 03/24/2009 VKN/AESA Added CY7C136A-55JXI, and CY7C136A-55NXI parts. ...

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