Datasheet > IDT70V7278S

IDT70V7278S

更新时间： 2024-10-29 12:20:31

品牌	Logo	应用领域
艾迪悌 - IDT		静态存储器
页数	文件大小	规格书
16页	130K
描述
HIGH-SPEED 3.3V 32K x 16 BANK-SWITCHABLE DUAL-PORTED SRAM WITH EXTERNAL BANK SELECTS

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中文翻译

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数据手册

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IDT70V7278S 数据手册

HIGH-SPEED 3.3V

IDT70V7278S/L

32K x 16 BANK-SWITCHABLE

DUAL-PORTED SRAM WITH

EXTERNAL BANK SELECTS

Features

◆

32K x 16 Bank-Switchable Dual-Ported SRAM Architecture

– Four independent 8K x 16 banks

Interrupt flags with programmable masking

Dual Chip Enables allow for depth expansion without

external logic

UB and LB are available for x8 or x16 bus matching

LVTTL-compatible, single 3.3V (±5%) power supply

Available in a 100-pin Thin Quad Flatpack

Industrial temperature range (-40° to +85°C) is available

for selected speeds

◆

– 512 kilobit of memory on chip

◆

Fast asynchronous address-to-data access time: 15ns

User-controlled input pins included for bank selects

Independent port controls with asynchronous address &

data busses

◆

Four 16-bit mailboxes available to each port for inter-

processor communications; interrupt option

Functional Block Diagram

MUX

R/W

CE0L

CE1L

R/W

CE0R

CE1R

8Kx16

MEMORY

ARRAY

(BANK 0)

CONTROL

LOGIC

CONTROL

LOGIC

MUX

I/O

CONTROL

I/O

CONTROL

I/O8L-15L

I/O0L-7L

I/O8R-15R

I/O0R-7R

8Kx16

MEMORY

ARRAY

(BANK 1)

12L

12R

ADDRESS

DECODE

ADDRESS

DECODE

(1)

A0L

MUX

BA1R

BA0R

BA1L

BA0L

BANK

DECODE

BANK

DECODE

MUX

8Kx16

MEMORY

ARRAY

(BANK 3)

MUX

(2)

BKSEL

BANK

SELECT

(2)

(1)

MAILBOX

INTERRUPT

LOGIC

LBR/UBR

/UB

R/W

R/WR

MBSEL

4078 drw 01

INT

INTR

NOTES:

1. The first six address pins for each port serve dual functions. When MBSEL = VIH, the pins serve as memory address inputs. When MBSEL = VIL, the pins serve as mailbox

address inputs.

2. Each bank has an input pin assigned that allows the user to toggle the assignment of that bank between the two ports. Refer to Truth Table I for more details.

JUNE 2000

DSC-4078/7

12 3 4 5 6 7...16

中文翻译

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与IDT70V7278S相关器件

型号	品牌	获取价格	描述	数据表
IDT70V7278S15PF	IDT	获取价格	Dual-Port SRAM, 32KX16, 15ns, CMOS, PQFP100, TQFP-100
IDT70V7278S15PF9	IDT	获取价格	Dual-Port SRAM, 32KX16, 15ns, PQFP100, TQFP-100
IDT70V7278S15PFI	IDT	获取价格	Dual-Port SRAM, 32KX16, 15ns, PQFP100, TQFP-100
IDT70V7278S20PF	IDT	获取价格	Dual-Port SRAM, 32KX16, 20ns, CMOS, PQFP100, TQFP-100
IDT70V7278S20PF9	IDT	获取价格	Dual-Port SRAM, 32KX16, 20ns, PQFP100, TQFP-100
IDT70V7288L	IDT	获取价格	HIGH-SPEED 3.3V 64K x 16 BANK-SWITCHABLE DUAL-PORTED SRAM WITH EXTERNAL BANK SELECTS
IDT70V7288L15PF	IDT	获取价格	HIGH-SPEED 3.3V 64K x 16 BANK-SWITCHABLE DUAL-PORTED SRAM WITH EXTERNAL BANK SELECTS
IDT70V7288L15PF9	IDT	获取价格	Dual-Port SRAM, 64KX16, 15ns, PQFP100, 14 X 14 MM, 1.40 MM HEIGHT, TQFP-100
IDT70V7288L15PFI	IDT	获取价格	HIGH-SPEED 3.3V 64K x 16 BANK-SWITCHABLE DUAL-PORTED SRAM WITH EXTERNAL BANK SELECTS
IDT70V7288L20PF	IDT	获取价格	HIGH-SPEED 3.3V 64K x 16 BANK-SWITCHABLE DUAL-PORTED SRAM WITH EXTERNAL BANK SELECTS

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