CY7C056V-20AI Просмотр технического описания (PDF) - Cypress Semiconductor

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CY7C056V-20AI

3.3V 16K/32K x 36 FLEx36™ Asynchronous Dual-Port Static RAM

Cypress Semiconductor 

PRELIMINARY

CY7C056V

CY7C057V

Selection Guide

Maximum Access Time (ns)

Typical Operating Current (mA)

Typical Standby Current for ISB1 (mA) (Both Ports TTL Level)

Typical Standby Current for ISB3 (µA) (Both Ports CMOS

Level)

CY7C056V

CY7C057V

-10

10

260

60

10 µA

CY7C056V

CY7C057V

-12

12

250

55

10 µA

CY7C056V

CY7C057V

-15

15

240

50

10 µA

CY7C056V

CY7C057V

-20

20

230

45

10 µA

Pin Definitions

Left Port

A0L–A13/14L

SEML

CE0L, CE1L

INTL

BUSYL

I/O0L–I/O35L

OEL

R/WL

B0–B3

M/S

VSS

VDD

Right Port

A0R–A13/14R

SEMR

CE0R, CE1R

INTR

BUSYR

I/O0R–I/O35R

OER

R/WR

BM, SIZE

WA, BA

Description

Address (A0–A13 for 16K; A0–A14 for 32K devices)

Semaphore Enable

Chip Enable (CE is LOW when CE0 ≤ VIL and CE1 ≥ VIH)

Interrupt Flag

Busy Flag

Data Bus Input/Output

Output Enable

Read/Write Enable

Byte Select Inputs. Asserting these signals enables read and write oper-

ations to the corresponding bytes of the memory array.

See Bus Matching for details.

See Bus Matching for details.

Master or Slave Select

Ground

Power

Maximum Ratings

(Above which the useful life may be impaired. For user guide-

lines, not tested.)

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 VDD+0.5V

DC Input Voltage...................................–0.5V to VDD+0.5V[6]

Note:

6. Pulse width < 20 ns.

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

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

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

Operating Range

Range

Ambient

Temperature

Commercial

0°C to +70°C

Industrial

–40°C to +85°C

Shaded areas contain advance information.

VDD

3.3V ± 165 mV

3.3V ± 165 mV

5

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