Cypress Semiconductor CY7C09089V Manuale utente

CY7C09079V/89V/99V

CY7C09179V/89V/99V

3.3V 32K/64K/128K x 8/9

Synchronous Dual-Port Static RAM

Cypress Semiconductor Corporation • 198 Champion Court • San Jose,CA 95134-1709 • 408-943-2600

Document #: 38-06043 Rev. *C Revised December 10, 2008

Features

■True Dual-Ported memory cells which enable simultaneous

access of the same memory location

■6 Flow-Through and Pipelined devices

■32K x 8/9 organizations (CY7C09079V/179V)

■64K x 8/9 organizations (CY7C09089V/189V)

■128K x 8/9 organizations (CY7C09099V/199V)

■3 Modes

■Flow-Through

■Pipelined

■Burst

■Pipelined output mode on both ports enables fast 100 MHz

operation

■0.35-micron CMOS for optimum speed and power

■High speed clock to data access 6.5[1]/7.5[1]/9/12 ns (max.)

■3.3V low operating power

■Active= 115 mA (typical)

■Standby= 10 μA (typical)

■Fully synchronous interface for easier operation

■Burst counters increment addresses internally

■Shorten cycle times

■Minimize bus noise

■Supported in Flow-Through and Pipelined modes

■Dual Chip Enables for easy depth expansion

■Automatic power down

■Commercial and Industrial temperature ranges

■Available in 100-pin TQFP

■Pb-free packages available

Notes

1. See page 6 for Load Conditions.

2. I/O0–I/O7for x8 devices, I/O0–I/O8for x9 devices.

3. A0–A14 for 32K, A0–A15 for 64K, and A0–A16 for 128K devices.

Logic Block Diagram

R/WL

CE0L

CE1L

OEL

FT/PipeL

I/O0L–I/O7/8L

Control

A0–A14/15/16L

CLKL

ADSL

CNTENL

CNTRSTL

R/WR

0/1

CE0R

CE1R

OER

10/1

FT/PipeR

I/O0R–I/O7/8R

I/O

Control

A0–A14/15/16R

CLKR

ADSR

CNTENR

CNTRSTR

0/1

0/1 0

I/O

Counter/

Address

Decode

True Dual-Ported

RAM Array

Counter/

Address

Decode

8/9 8/9

[2] [2]

[3] [3]

15/16/17 15/16/17

CY7C0907 9V/89V/99V

CY7C0917 9V/89V/99V

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 2 of 21

Functional Description

The CY7C09079V/89V/99V and CY7C09179V/89V/99V are

high speed synchronous CMOS 32K, 64K, and 128K x 8/9

dual-port static RAMs. Two ports are provided, permitting

independent, simultaneous access for reads and writes to any

location in memory.[4] Registers on control, address, and data

lines enable minimal setup and hold times. In pipelined output

mode, data is registered for decreased cycle time. Clock to data

valid tCD2 = 6.5 ns[1] (pipelined). Flow-through mode can also be

used to bypass the pipelined output register to eliminate access

latency. In flow-through mode, data is available tCD1 = 18 ns after

the address is clocked into the device. Pipelined output or

flow-through mode is selected via the FT/Pipe pin.

Each port contains a burst counter on the input address register.

The internal write pulse width is independent of the

LOW-to-HIGH transition of the clock signal. The internal write

pulse is self-timed to enable the shortest possible cycle times.

A HIGH on CE0or LOW on CE1for one clock cycle powers down

the internal circuitry to reduce the static power consumption. The

use of multiple Chip Enables enables easier banking of multiple

chips for depth expansion configurations. In the pipelined mode,

one cycle is required with CE0LOW and CE1HIGH to reactivate

the outputs.

Counter enable inputs are provided to stall the operation of the

address input and use the internal address generated by the

internal counter for fast interleaved memory applications. A

port’s burst counter is loaded with the port’s Address Strobe

(ADS). When the port’s Count Enable (CNTEN) is asserted, the

address counter increments on each LOW-to-HIGH transition of

that port’s clock signal. This reads/writes one word from/into

each successive address location until CNTEN is deasserted.

The counter can address the entire memory array and loops

back to the start. Counter Reset (CNTRST) is used to reset the

burst counter.

All parts are available in 100-pin Thin Quad Plastic Flatpack

(TQFP) packages.

Pin Configurations

Figure 1. 100-Pin TQFP (Top View) - CY7C09099V (128K x 8), CY7C09089V (64K x 8),CY7C09079V (32K x 8)

Notes

4. When writing simultaneously to the same location, the final value cannot be guaranteed.

5. This pin is NC for CY7C09079V.

6. This pin is NC for CY7C09079V and CY7C09089V.

7. For CY7C09079V and CY7C09089V, pin #23 connected to VCC is pin compatible with an IDT 5V x8 pipelined device; connecting pin #23 and #53 to GND is pin

compatible with an IDT 5V x16 flow-through device.

92 91 90 848587 868889 83 82 81 7678 77798093949596979899100

A7R

A8R

A9R

A10R

A15R

A12R

A14R

GND

CE0R

A13R

A11R

CE1R

CNTRSTR

R/WR

OER

FT/PIPER

GND

A16R

A7L

A8L

A9L

A10L

A15L

A12L

A14L

VCC

CE0L

A13L

A11L

CE1L

CNTRSTL

R/WL

OEL

FT/PIPEL

A16L

A6L

A5L

A4L

A3L

CLKL

A1L

CNTENL

GND

ADSR

A0R

A1R

A0L

A2L

CLKR

CNTENR

A2R

A3R

A4R

A5R

A6R

ADSL

34 35 36 424139 403837 43 44 45 5048 494746

I/O7R

I/O6R

I/O5R

I/01R

I/O3R

I/O2R

GND

VCC

GND

I/O2L

VCC

I/O4R

I/O0L

I/O1L

I/O3L

I/O4L

I/O5L

I/O6L

I/O7L

GND

I/O0R

3332313029282726

[5] [5]

[6]

[7]

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 3 of 21

Pin Configurations (continued

Figure 2. 100-Pin TQFP (Top View0 - CY7C09199V (128K x 9), CY7C09189V (64K x 9),CY7C09179V (32K x 9)

92 91 90 848587 868889 83 82 81 7678 77798093949596979899100

A7R

A8R

A9R

A10R

A15R

A12R

A14R

GND

CE0R

A13R

A11R

CE1R

CNTRSTR

R/WR

OER

FT/PIPER

GND

A16R

A7L

A8L

A9L

A10L

A15L

A12L

A14L

VCC

CE0L

A13L

A11L

CE1L

CNTRSTL

R/WL

OEL

FT/PIPEL

A16L

A6L

A5L

A4L

A3L

CLKL

A1L

CNTENL

GND

CNTENR

A0R

A0L

A2L

ADSR

CLKR

A1R

A2R

A3R

A4R

A5R

A6R

ADSL

34 35 36 424139 403837 43 44 45 5048 494746

I/O8R

I/O7R

I/O6R

I/O5R

I/01R

I/O3R

I/O2R

GND

VCC

GND

I/O2L

VCC

I/O4R

I/O0L

I/O1L

I/O3L

I/O4L

I/O5L

I/O6L

I/O7L

I/O8L

GND

I/O0R

3332313029282726

[8] [8]

[9][9]

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 4 of 21

Notes

8. This pin is NC for CY7C09179V.

9. This pin is NC for CY7C09179V and CY7C09189V

Selection Guide

Description CY7C09079V/89V/99V

CY7C09179V/89V/99V-6[1] CY7C09079V/89V/99V

CY7C09179V/89V/99V-7[1]

CY7C09079V/89V/99V

CY7C09179V/89V/99V

-9

CY7C09079V/89V/99V

CY7C09179V/89V/99V

-12

fMAX2 (MHz)

(Pipelined)

100 83 67 50

Max. Access Time

(ns) (Clock to Data,

Pipelined)

6.5 7.5 9 12

Typical Operating

Current ICC (mA)

175 155 135 115

Typical Standby

Current for ISB1

(mA) (Both Ports

TTL Level)

25 25 20 20

Typical Standby

Current for ISB3

(μA) (Both Ports

CMOS Level)

10 μA 10 μA10μA 10 μA

Pin Definitions

Left Port Right Port Description

A0L–A16L A0R–A16R Address Inputs (A0–A14 for 32K; A0–A15 for 64K; and A0–A16 for 128K devices).

ADSLADSRAddress Strobe Input. Used as an address qualifier. This signal should be asserted LOW to

access the part using an externally supplied address. Asserting this signal LOW also loads

the burst counter with the address present on the address pins.

CE0L,CE1L CE0R,CE1R Chip Enable Input. To select either the left or right port, both CE0AND CE1must be asserted

to their active states (CE0≤VIL and CE1≥ VIH).

CLKLCLKRClock Signal. This input can be free running or strobed. Maximum clock input rate is fMAX.

CNTENLCNTENRCounter Enable Input. Asserting this signal LOW increments the burst address counter of its

respective port on each rising edge of CLK. CNTEN is disabled if ADS or CNTRST are

asserted LOW.

CNTRSTLCNTRSTRCounter Reset Input. Asserting this signal LOW resets the burst address counter of its

respective port to zero. CNTRST is not disabled by asserting ADS or CNTEN.

I/O0L–I/O8L I/O0R–I/O8R Data Bus Input/Output (I/O0–I/O7for x8 devices; I/O0–I/O8for x9 devices).

OELOEROutput Enable Input. This signal must be asserted LOW to enable the I/O data pins during

read operations.

R/WLR/WRRead/Write Enable Input. This signal is asserted LOW to write to the dual port memory array.

For read operations, assert this pin HIGH.

FT/PIPELFT/PIPERFlow-Through/Pipelined Select Input. For flow-through mode operation, assert this pin LOW.

For pipelined mode operation, assert this pin HIGH.

GND Ground Input.

NC No Connect.

VCC Power Input.

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 5 of 21

Maximum Ratings

Exceeding maximum ratings may impair the useful life of the

device. These user guidelines are not tested.[10]

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

Ambient Temperature with Power Applied.. –55°C to +125°C

Supply Voltage to Ground Potential................–0.5V to +4.6V

DC Voltage Applied to

Outputs in High Z State ........................... –0.5V to VCC+0.5V

DC Input Voltage ..................................... –0.5V to VCC+0.5V

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

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

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

Operating Range

Range

Ambient

Temperature VCC

Commercial 0°C to +70°C 3.3V ±300 mV

Industrial[11] –40°C to +85°C 3.3V ±300 mV

Notes

10. The Voltage on any input or I/O pin cannot exceed the power pin during power-up.

11. Industrial parts are available in CY7C09099V and CY7C09199V only.

12. CELand CERare internal signals. To select either the left or right port, both CE0AND CE1must be asserted to their active states (CE0≤VIL and CE1≥ VIH).

Electrical Characteristics Over the Operating Range

Parameter Description

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Unit

-6[1] -7[1] -9 -12

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

Min

Typ

Max

VOH Output HIGH Voltage (VCC = Min. IOH =

–4.0 mA)

2.4 2.4 2.4 2.4 V

VOL Output LOW Voltage (VCC = Min. IOH =

+4.0 mA)

0.4 0.4 0.4 0.4 V

VIH Input HIGH Voltage 2.0 2.0 2.0 2.0 V

VIL Input LOW Voltage 0.8 0.8 0.8 0.8 V

IOZ Output Leakage Current –10 10 –10 10 –10 10 –10 10 μA

ICC Operating Current

(VCC

= Max. IOUT = 0 mA)

Outputs Disabled

Commercial. 175 320 155 275 135 225 115 205 mA

Industrial[11] 275 390 185 295 mA

ISB1 Standby Current (Both

Ports TTL Level)[12] CEL

& CER≥VIH, f = fMAX

Commercial. 25 95 25 85 20 65 20 50 mA

Industrial[11] 85 120 35 75 mA

ISB2 Standby Current (One

Port TTL Level)[12] CEL|

CER≥VIH, f = fMAX

Commercial. 115 175 105 165 95 150 85 140 mA

Industrial[11] 165 210 105 160 mA

ISB3 Standby Current (Both

Ports CMOS Level)[12]

CEL& CER≥VCC – 0.2V,

f = 0

Commercial. 10 250 10 250 10 250 10 250 μA

Industrial[11] 10 250 10 250 μA

ISB4 Standby Current (One

Port CMOS Level)[12]

CEL| CER≥VIH, f = fMAX

Commercial 105 135 95 125 85 115 75 100 mA

Industrial[11] 125 170 95 125 mA

Capacitance

Parameter Description Test Conditions Max Unit

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

VCC = 3.3V

10 pF

COUT Output Capacitance 10 pF

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 6 of 21

Figure 4. AC Test Loads (Applicable to -6 and -7 only)[13]

Figure 5. Load Derating Curve

Figure 3. AC Test Loads

(a) Normal Load (Load 1)

R1 = 590Ω

3.3V

OUTPUT

R2 = 435Ω

C= 30pF

VTH =1.4V

OUTPUT

C= 30 pF

(b) Thévenin Equivalent (Load 1) (c) Three-State Delay (Load 2)

R1 = 590Ω

R2 = 435Ω

3.3V

OUTPUT

C= 5pF

RTH = 250Ω

(Used for tCKLZ, tOLZ, & tOHZ

including scope and jig)

=1.4V

OUTPUT

(a) Load 1 (-6 and -7 only)

R = 50

= 50

3.0V

GND 90% 90%

10%

3ns 3ns

10%

ALL INPUT PULSES

≤≤

0.00

0.1 0

0.20

0.30

0.40

0.50

0.60

1 0 1 5 20 25 30 35

Capacitance (pF)

(ns) for all -7 access times

Note

13. Test Conditions: C = 10 pF.

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 7 of 21

Notes

14. Test conditions used are Load 2.

15. This parameter is guaranteed by design, but it is not production tested.

Switching Characteristics Over the Operating Range

Parameter Description

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Unit

-6[1] -7[1] -9 -12

Min Max Min Max Min Max Min Max

fMAX1 fMax Flow-Through 53 45 40 33 MHz

fMAX2 fMax Pipelined 100 83 67 50 MHz

tCYC1 Clock Cycle Time - Flow-Through 19 22 25 30 ns

tCYC2 Clock Cycle Time - Pipelined 10 12 15 20 ns

tCH1 Clock HIGH Time - Flow-Through 6.5 7.5 12 12 ns

tCL1 Clock LOW Time - Flow-Through 6.5 7.5 12 12 ns

tCH2 Clock HIGH Time - Pipelined 4 5 6 8 ns

tCL2 Clock LOW Time - Pipelined 4 5 6 8 ns

tRClock Rise Time 3 3 3 3 ns

tFClock Fall Time 3 3 3 3 ns

tSA Address Set-Up Time 3.5 4 4 4 ns

tHA Address Hold Time 0 0 1 1 ns

tSC Chip Enable Set-Up Time 3.5 4 4 4 ns

tHC Chip Enable Hold Time 0 0 1 1 ns

tSW R/W Set-Up Time 3.5 4 4 4 ns

tHW R/W Hold Time 0 0 1 1 ns

tSD Input Data Set-Up Time 3.5 4 4 4 ns

tHD Input Data Hold Time 0 0 1 1 ns

tSAD ADS Set-Up Time 3.5 4 4 4 ns

tHAD ADS Hold Time 0 0 1 1 ns

tSCN CNTEN Set-Up Time 3.5 4.5 5 5 ns

tHCN CNTEN Hold Time 0 0 1 1 ns

tSRST CNTRST Set-Up Time 3.5 4 4 4 ns

tHRST CNTRST Hold Time 0 0 1 1 ns

tOE Output Enable to Data Valid 8 9 10 12 ns

tOLZ[14, 15] OE to Low Z 2 2 2 2 ns

tOHZ[14, 15] OE to High Z 1 7 1 7 1 7 1 7 ns

tCD1 Clock to Data Valid - Flow-Through 15 18 20 25 ns

tCD2 Clock to Data Valid - Pipelined 6.5 7.5 912 ns

tDC Data Output Hold After Clock HIGH 2 2 2 2 ns

tCKHZ[14, 15] Clock HIGH to Output High Z 2 9 2 9 2 9 2 9 ns

tCKLZ[14, 15] Clock HIGH to Output Low Z 2 2 2 2 ns

Port to Port Delays

tCWDD Write Port Clock HIGH to Read Data Delay 30 35 40 40 ns

tCCS Clock to Clock Set-Up Time 9 10 15 15 ns

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 8 of 21

Switching Waveforms (continued)

Figure 6. Read Cycle for Flow-Through Output (FT/PIPE = VIL)[16, 17, 18, 19]

Notes

16. OE is asynchronously controlled; all other inputs are synchronous to the rising clock edge.

17. ADS = VIL, CNTEN and CNTRST = VIH.

18. The output is disabled (high-impedance state) by CE0=VIH or CE1= VIL following the next rising edge of the clock.

19. Addresses do not have to be accessed sequentially since ADS = VIL constantly loads the address on the rising edge of the CLK. Numbers are for reference

only.

tCH1 tCL1

tCYC1

tSC tHC

tDC

tOHZ

tOE

tSC tHC

tSW tHW

tSA tHA

tCD1 tCKHZ

tDC

tOLZ

tCKLZ

AnAn+1 An+2 An+3

QnQn+1 Qn+2

CLK

CE0

CE1

R/W

ADDRESS

DATAOUT

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 9 of 21

Figure 7. Read Cycle for Pipelined Operation (FT/PIPE = VIH)[16, 17, 18, 19]

Figure 8. Bank Select Pipelined Read[20, 21]

Switching Waveforms (continued)

tCH2 tCL2

tCYC2

tSC tHC

tSW tHW

tSA tHA

AnAn+1

CLK

CE0

CE1

R/W

ADDRESS

DATAOUT

An+2 An+3

tSC tHC

tOHZ

tOE

tOLZ

tDC

tCD2

tCKLZ

QnQn+1 Qn+2

1 Latency

A0A1A2A3A4A5

tSA tHA

tSC tHC

tSA tHA

tSC tHC

tSC tHC tCKHZ

tDC

tCD2

tCKLZ

tCD2 tCD2 tCKHZ

tCKLZ

tCD2 tCKHZ

tCKLZ

tCD2

tCH2 tCL2

tCYC2

CLKL

ADDRESS(B1)

CE0(B1)

DATAOUT(B2)

DATAOUT(B1)

ADDRESS(B2)

CE0(B2)

[+] Feedback

CY7C09079V/89V/99V

CY7C09179V/89V/99V

Document #: 38-06043 Rev. *C Page 10 of 21

Figure 9. Left Port Write to Flow-Through Right Port Read[22, 23, 24, 25]

Notes

20. In this depth expansion example, B1 represents Bank #1 and B2 is Bank #2; Each Bank consists of one Cypress dual-port device from this datasheet. ADDRESS(B1)

= ADDRESS(B2).

21. OE and ADS = VIL; CE1(B1), CE1(B2), R/W, CNTEN, and CNTRST = VIH.

22. The same waveforms apply for a right port write to flow-through left port read.

23. CE0and ADS = VIL; CE1, CNTEN, and CNTRST = VIH.

24. OE = VIL for the right port, which is being read from. OE = VIH for the left port, which is being written to.

25. It tCCS ≤maximum specified, then data from right port READ is not valid until the maximum specified for tCWDD. If tCCS>maximum specified, then data is not valid

until tCCS + tCD1. tCWDD does not apply in this case.

Switching Waveforms (continued)

tSA tHA

tSW tHW

tSD tHD

MATCH

VALID

tCCS

tSW tHW

tDC

tCWDD

tCD1

MATCH

tSA tHA

MATCH

VALID VALID

tDC

tCD1

CLKL

R/WL

ADDRESSL

DATAINL

ADDRESSR

DATAOUTR

CLKR

R/WR

[+] Feedback

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