CYPRESS CY7C130 User Manual

1CY7C14 0

fax id: 5200

CY7C130/CY7C131
CY7C140/CY7C141

1K x 8 Dual-Port Static Ram

Features

• True Dual-Ported memory cells which allow simulta­neous reads of the same memory location

• 1K x 8 organization

• 0.65-micron CMOS for optimum speed/power

• High-speed access: 15 ns

• Low operating power: I

= 90 mA (max.)

CC

• Fully asynchronous operation

• Automatic power-down

• Master CY7C130/CY7C131 easily expands data bus
width to 16 or more bits using slave CY7C140/CY7C14 1

• BUSY

output flag on CY7C130/CY7C131; BUSY input

on CY7C140/CY7C141

• INT

flag for port-to-port communication

• Available in 48-pin DIP (CY7C130/140 ), 52-pin PLCC and
52-pin TQFP

• Pin-compatible and functionally equivalent to
IDT7130/IDT7140

Logic Block Dia gram

R/W

L

CE

L

OE

L

I/O

7L

I/O

0L

[1]

BUSY

L

A

INT

9L

A

0L

[2]

L

ADDRESS
DECODER

Notes:

1. CY7C130/CY7C131 (Master): BUSY
CY7C140/CY7C141 (Slave): BUSY is input.

2. Open drain outputs: pull-up resistor required

s

I/O

CE
OE

R/W

CONTROL

L

L
L

MEMORY

ARRAY

ARBITRATION

LOGIC

(7C130/7C131 ONLY)

AND

INTERRUPT LOGIC

CONTROL

is open drain output and requires pull-up resistor

I/O

Functional Description

The CY7C130/CY7C131/CY7C140 and CY7C141 are
high-speed CMOS 1K by 8 dual-port static RAMs. Two ports
are provided permitting independent access to any location in
memory. The CY7C130/ CY7C131 can be utilized as either a
standalone 8-bit dual-port static RAM or as a master dual-port
RAM in conjunction with the CY7C140/CY7C141 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
multipr ocessor designs.

Each port has independent control pins; chip enable (CE
write enable (R/W
provided on each port, BUSY

), and output enable (OE). Two flags are

and INT. BUSY signals that the
port is trying to access the same location currently being ac­cessed by the other port. INT

is an interrupt flag indicating that
data has been placed i n a u nique loca tion (3FF for the left port
and 3FE for the right port). An automatic power-down feature
is controlled independently on each port by the chip enable
(CE

) pin s.

The CY7C130 and CY7C140 are available in 48-pin DIP. The
CY7C131 and CY7C141 are available in 52-pin PLCC and
PQFP.

Pin Con figurations

R/W

R

CE

R

L
L

L

L

L

0L
1L

2L
3L
4L
5L
6L
7L
8L
9L

0L
1L
2L

3L
4L
5L
6L
7L

DIP

Top View

1
2
3
4
5
6
7
8
9
10
11

12 37

7C130

13

7C140
14
15
16
17
18
19
20
21
22
23 26
24 25

V

48

CC

47

CE

R

R/W

46

BUSY

45

INT

44

OE

43

R

42

A

0R

A

41

1R

40

A

2R

A

39

3R

A

38

4R

A

5R

A

36

6R

A

35

7R

A

34

8R

A

33

9R

I/O

32

7R

31

I/O

6R

I/O

30

5R

I/O

29

4R

I/O

28

3R

I/O

27

2R

I/O

1R

I/O

0R

C130-2

ADDRESS

DECODER

CE

R

OE

R

R/W

R

OE

I/O
I/O
BUSY

A

9R

A

0R

INT

R

7R

0R

R

[2]

R

C130-1

CE

R/W

BUSY

INT

OE

I/O
I/O
I/O

I/O
I/O
I/O
I/O
I/O
GND

A
A
A
A
A
A
A
A

A
A

),

R

R

R

Cypress Semiconductor Corporation • 3901North First Street • San Jose • CA 95134 • 408-943- 2600

May 1989 – Revised March 27, 1997

Pin Configuration (continued)

CY7C130/CY7C131
CY7C140/CY7C141

PLCC

Top View

A
A
A
A
A
A
A
A

A
I/O
I/O
I/O
I/O

7 6 5 4 3 2 52 51 50 49 48 47

1L

8

2L

9

3L

10

4L

11

5L

12

6L

13

7L

14

8L

15

9L

16

0L

17

1L

18

2L

19

3L

20

21222324252627282930313233

1

7C131
7C141

OE

46

R

A

45

0R

A

44

1R

A

43

2R

A

42

3R

A

41

4R

A

40

5R

A

39

6R

A

38

7R

A

37

8R

A

36

9R

NC

35

I/O

34

7R

C130-3

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

525150 494847 454443424140
1
2
3
4
5
6
7
8
9
10
11
12
13

1415 16 17 18 19 20 21 22 23 24 25 26

PQFP

T op View

46

7C131
7C141

C130-4

OE
A
A
A
A
A
A

A
A
A
A
NC
I/O

R
0R
1R
2R
3R
4R
5R

6R
7R
8R
9R

7R

39
38
37
36
35
34
33
32
31
30
29
28
27

Selectio n Gu ide

7C130-30

7C131-15

7C141-15

[3,4]

7C131-25

7C141-25

[3]

7C131-30
7C140-30
7C141-30

Maximum Access Time (ns) 15 25 30 35 45 55
Maximum Operating

Current (mA)
Maximum Standby

Current (mA)

Com’l/Ind 190 170 170 120 90 90
Milit ary 170 120 120
Com’l/Ind 75 65 65 45 35 35
Milit ary 65 45 45

7C130-35
7C131-35
7C140-35
7C141-35

7C130-45
7C131-45
7C140-45
7C141-45

7C130-55
7C131-55
7C140-55
7C141-55

Maximum Ratings

(Above which the useful life may be impaired. For user guide­lines, not tested.)

Storage Temperature ................................. –65°C to +150

Ambient Temperature with

Power Applied.............................................– 55°C to +125°C

Supply Voltage to Ground Potential

(Pin 48 to Pin 24) . ..........................................–0.5V to +7.0V

DC Voltage Applied to Outputs

in High Z State ............................................... –0.5V to +7.0V

DC Input Voltage............................................–3.5V to +7.0V

Output Current into Outputs (LOW).............................20 mA

Notes:

3. 15 and 25-ns version available only in PLCC/PQFP packages.

4. Shaded area contains preliminary information.

5. T

is the “instant on” case temperature

A

°C

Static Discharge Voltage.......................................... >2001V

(per MIL-STD-883, Method 3015)

Latch-Up Current.................................................... >200 mA

Operating Range

Ambient

Range

Commercial 0°C to +70°C 5V ± 10%
Industrial –40°C to +85°C 5V ± 10%

[5]

Military

2

Temperature

V

CC

–55°C to +125°C 5V ± 10%

CY7C130/CY7C131
CY7C140/CY7C141

Electrical Characteristics Over the Operating Range

[6]

7C131-15

7C141-15

[3,4]

7C130-30

[3]

7C131-25,30

7C140-30

7C141-25,30

7C130-35
7C131-35
7C140-35
7C141-35

7C130-45,55
7C131-45,55
7C140-45,55
7C141-45,55

Parameter Description Test Conditions Min. Max. Min. Max. Min. Max. Min. Max. Unit

V

OH

V

OL

V

IH

V

IL

I

IX

I

OZ

I

OS

I

CC

I

SB1

I

SB2

I

SB3

I

SB4

Notes:

6. See the last page of this specification for Group A subgroup testing information.

7. BUSY

8. Duration of the short circuit should not exceed 30 seconds.

9. This parameter is guaranteed but not tested.

10. At f=f

Capacitance

Output HIGH

VCC = Min., IOH = –4.0 mA 2.4 2.4 2.4 2.4 V

Voltage
Output LOW

Voltage

IOL = 4.0 mA 0.4 0.4 0.4 0.4 V
IOL = 16.0 mA

[7]

0.5 0.5 0.5 0.5
Input HIGH Voltage 2.2 2.2 2.2 2.2 V
Input LOW Voltage 0.8 0.8 0.8 0.8 V
Input Leakage

Current
Output Leakage

Current
Output Short

Circuit Current
VCC Operating

Supply Current

Standby Current
Both Ports,
TTL Inputs

Standby Current
One Port,
TTL Inputs

Standby Current
Both Ports,
CMOS Inputs

Standby Current
One Port,
CMOS Inputs

and INT pins only.

, address and data inp uts are cycli ng at the maximum fr equency of r ead cycle of 1/tRC and using AC Te st W avefor ms i nput leve ls of GND to 3V.

MAX

[9]

GND < VI < V

GND < VO < VCC,
Output Disabled

VCC = Max.,

[8, 9]

V

OUT

CE = VIL,
Outputs Open,
f = f

CEL and CER >
V

IH

CEL or CER > VIH,
Active Port Out­puts Open,
f = f

Both Ports CEL
and CE

0.2V,
V

IN

or V
One Port CEL or

CE
V

IN

or V
Active Port Outputs
Open,
f = f

CC

= GND

[10]

MAX

MAX

[10]

> VCC –

R

[10]

, f = f

MAX

> VCC – 0.2V

< 0.2V, f = 0

IN

> VCC – 0.2V,

R

> VCC – 0.2V

< 0.2 V,

IN

[10]

MAX

–5 +5 –5 +5 –5 +5 –5 +5 µA

–5 +5 –5 +5 –5 +5 –5 +5 µA

–350 –350 –350 –350 mA

Com’l 190 170 120 90 mA
Mil 170 120

Com’l 75 65 45 35 mA
Mil 65 45

Com’l 135 115 90 75 mA
Mil 115 90

Com’l 15 15 15 15 mA
Mil 15 15

Com’l 125 105 85 70 mA
Mil 105 85

Parameter Description Test Conditions Max. Unit

C

IN

C

OUT

]

Input Capacitance TA = 25°C, f = 1 MHz,

V

= 5.0V

Output Capacitance 10 pF

CC

15 pF

3

AC Test Loads and Waveforms

V

5V

OUTPUT

INCLUDING

JIGAND

Equivalent to:

R1 893Ω

30 pF

SCOPE

OUTPUT 1.40V

R2
347Ω

(a)

THÉVENIN EQUIVALENT

250Ω

5V

OUTPUT

INCLUDING

5pF

JIGAND

SCOPE

R1 893Ω

(b)

3.0V

GND

≤ 5ns

R2
347Ω

10%

C130-5

ALL INPUT PULSES

90%

CY7C130/CY7C131
CY7C140/CY7C141

5

BUSY

OR
INT

BUSY Output Load

(CY7C130/CY7C131 ONLY)

90%

10%

≤5

ns

281Ω

30

pF

C130-6

Switching Characteristics Over the Operating Range

Parameter Description

[6,11]

7C131-15

7C141-15

[3,4]

7C130-25

7C131-25
7C140-25
7C141-25

[3]

7C130-30
7C131-30
7C140-30
7C141-30

Min. Max. Min. Max. Min. Max. Unit

READ CYCLE

t

RC

t

AA

t

OHA

t

ACE

t

DOE

t

LZOE

t

HZOE

t

LZCE

t

HZCE

t

PU

t

PD

WRITE CYCLE

t

WC

t

SCE

t

AW

t

HA

t

SA

t

PWE

t

SD

t

HD

t

HZWE

t

LZWE

Notes:

11. Test conditions assume signal transition times of 5 ns or less, timing reference levels of 1.5V, input pulse levels of 0 to 3.0V and output loading of the specified
I

OL/IOH,

12. AC Test Conditions use VOH = 1.6V and VOL = 1.4V.

13. At any given temperature and voltage condition for any given device, t

14. t

LZCE

15. The internal write time of the memory is defined by the overlap of CS LO W and R/W LOW . Both s ignals must be low to ini tiate a write and ei ther s ignal c an terminate
a write by going h igh. T he dat a input set-up and ho ld ti ming shoul d be r efer enced to the ri sing edge of the s ignal that ter minates the write

Read Cycle Time 15 25 30 ns
Address to Data Valid
Data Hold from Address Change 0 00ns
CE LOW to Data Valid
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE LOW to Low Z
CE HIGH to High Z
CE LOW to Power-Up
CE HIGH to Power-Down

[15]

Write Cycle Time 15 25 30 ns
CE LOW to Write End 12 20 25 ns
Address Set-Up to Write End 12 20 25 ns
Address Hold from Write End 2 22ns
Address Set-Up to Write Start 0 00ns
R/W Pulse Width 12 15 25 ns
Data Set-Up to Write End 10 15 15 ns
Data Hold from Write End 0 00ns
R/W LOW to High Z
R/W HIGH to Lo w Z

and 30-pF load c apacitance.

, t

, t

, t

LZWE

HZOE

LZOE

, t

HZCE

and t

[12]

[12]
[12]

[9,13, 14]

[9,13, 14]

[9,13, 14]

[9,13, 14]

[9]

[9]

[14]
[14]

are tested with CL = 5pF as in par t (b) of AC Test Loads. Transition is measured ±500 m V fro m steady s tate voltage.

HZWE

HZCE

3 33ns

3 55ns

0 00ns

0 00ns

is less than t

15 25 30 ns

15 25 30 ns
10 15 20 ns

10 15 15 ns

10 15 15 ns

15 25 25 ns

10 15 15 ns

and t

LZCE

HZOE

is less than t

LZOE

.

4

CY7C130/CY7C131
CY7C140/CY7C141

Switching Characteristics Over the Operating Range

Parameter Description

[6,11]

(continued)

7C131-15

7C141-15

[3,4]

7C130-25

7C131-25
7C140-25
7C141-25

[3]

7C130-30
7C131-30
7C140-30
7C141-30

Min. Max. Min. Max. Min. Max. Unit

BUSY/INTERRUPT TIMING

t

BLA

t

BHA

t

BLC

t

BHC

t

PS

[17]

t

WB

t

WH

t

BDD

t

DDD

t

WDD

BUSY LOW from Address Match 15 20 20 ns
BUSY HIGH from Address Mismatch

[16]

15 20 20 ns
BUSY LOW from CE LOW 15 20 20 ns
BUSY HIGH from CE HIGH

[16]

15 20 20 ns
Port Set Up for Priority 5 55ns
R/W LOW after BUSY LOW 0 00ns
R/W HIGH after B USY HIGH 13 20 30 ns
BUSY HIGH to Valid Data 15 25 30 ns
Write Data Valid to Read Data Valid Note

18
Write Pulse to Data Delay Note

18

Note

18

Note

18

Note 18ns

Note 18ns

INTERRUPT TIMING

t

WINS

t

EINS

t

INS

t

OINR

t

EINR

t

INR

Notes:

16. These parameters are measured from the input signal changing, until the output pin goes to a high-impedance state.

17. CY7C140/CY7C141 only.

18. 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
Port B’s addr ess is to ggled.
CE for Port B is toggl ed.
R/W for Port B is tog gled duri ng val id read.

Switching Characteristics Over the Operating Range

R/W to INTERRUPT Set Ti me 15 25 25 ns
CE to INTERRUPT Set Time 15 25 25 ns
Address to INTERRUPT Set T i me 15 25 25 ns
OE to INTERRUPT Reset Time
CE to INTERRUPT Reset Time
Address to INTERRUPT Rese t T im e

on Port B goes H IGH.

[16]

[16]

[16]

[6,1 1]

7C130-35
7C131-35
7C140-35
7C141-35

15 25 25 ns
15 25 25 ns
15 25 25 ns

7C130-4 5
7C131-4 5
7C140-4 5
7C141-4 5

7C130-55
7C131-55
7C140-55

7C141-55
Parameter Description Min. Max. Min. Max. Min. Max. Unit
READ CYCLE

t

RC

t

AA

t

OHA

t

ACE

t

DOE

t

LZOE

t

HZOE

t

LZCE

t

HZCE

t

PU

t

PD

Read Cycle Time 35 45 55 ns
Address to Data Valid

[12]

35 45 55 ns
Data Hold from Address Change 0 0 0 ns
CE LOW to Data Valid
OE LOW to Data Valid
OE LOW to Low Z
OE HIGH to High Z
CE LOW to Low Z
CE HIGH to High Z
CE LOW to Power-Up
CE HIGH to Power-Down

[12]

[12]

[9,13, 14]

[9,13, 14]

[9,13, 14]

[9,13, 14]

[9]

35 45 55 ns

20 25 25 ns

333ns

20 20 25 ns

555ns

20 20 25 ns

000ns

[9]

35 35 35 ns

5

CY7C130/CY7C131
CY7C140/CY7C141

Switching Characteristics Over the Operating Range

[6,1 1]

(continued)

7C130-35
7C131-35
7C140-35
7C141-35

7C130-45
7C131-45
7C140-45
7C141-45

7C130-55
7C131-55
7C140-55

7C141-55
Parameter Description Min. Max. Min. Max. Min. Max. Unit
WRITE CYCLE

t

WC

t

SCE

t

AW

t

HA

t

SA

t

PWE

t

SD

t

HD

t

HZWE

t

LZWE

[15]

Write Cycle Time 35 45 5 5 ns
CE LOW to Write End 30 35 4 0 n s
Address Set-Up to Write End 30 35 40 n s
Address Hold from Write End 2 2 2 ns
Address Set-Up to Write Start 0 0 0 n s
R/W Puls e Wi dth 25 30 30 ns
Data Set-Up to Write End 15 20 2 0 n s
Data Hold from Write End 0 0 0 ns
R/W LOW to High Z
R/W HIGH to Low Z

[14]
[14]

20 20 25 ns

000ns

BUSY/INTERRUPT TIMING

t

BLA

t

BHA

t

BLC

t

BHC

t

PS

t

WB

t

WH

t

BDD

t

DDD

t

WDD

[17]

BUSY LOW from Address Match 20 25 30 ns
BUSY HIGH from Address Mismatch

[16]

20 25 30 ns
BUSY LOW from CE LOW 20 25 30 ns
BUSY HIGH from CE HIGH

[16]

20 25 30 ns
Port Set Up for Priority 5 5 5 ns
R/W LOW after BUSY LOW 0 0 0 ns
R/W HIGH after BUSY HI GH 30 35 35 ns
BUSY HIGH to Valid Data 35 45 45 ns
Write Data Valid to Read Data Valid Note

18
Write Pulse to Data Delay Note

18

Note

18

Note

18

Note 18ns

Note 18ns

INTERRUPT TIMING

t

WINS

t

EINS

t

INS

t

OINR

t

EINR

t

INR

R/W to INTERRUP T S et Tim e 25 35 45 ns
CE to INTERRUPT Set Time 25 35 45 n s
Address to INTERRUPT Se t Tim e 25 35 45 ns
OE to INTERRUPT Reset Time
CE to INTERRUPT Reset Time
Address to INTERRUPT Reset Time

[16]
[16]

[16]

25 35 45 ns

25 35 45 ns

25 35 45 ns

Switching Waveforms

Read Cycle No.1

ADDRESS

DATA OUT

Notes:

is HIGH for rea d c ycle.

19. R/W

20. Device is continuously selected, CE = VIL and OE = VIL.

[19, 20]

t

OHA

Either Port Address Access

t

RC

t

AA

6

DATA VALIDPREVIOUS DATA VALID

C130-7