Datasheet > 70T651S12BFG

70T651S12BFG

更新时间： 2022-12-29 20:40:56

品牌	Logo	应用领域
艾迪悌 - IDT		/
页数	文件大小	规格书
28页	739K
描述
HIGH-SPEED 2.5V 256/128K x 36 ASYNCHRONOUS DUAL-PORT STATIC RAM

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70T651S12BFG 数据手册

IDT70T651/9S

HIGH-SPEED 2.5V

256/128K x 36

ASYNCHRONOUS DUAL-PORT

STATIC RAM

WITH 3.3V 0R 2.5V INTERFACE

◆

On-chip port arbitration logic

Features

◆

Full on-chip hardware support of semaphore signaling

between ports

True Dual-Port memory cells which allow simultaneous

access of the same memory location

High-speed access

◆

Fully asynchronous operation from either port

Separate byte controls for multiplexed bus and bus

matching compatibility

– Commercial:10/12/15ns(max.)

– Industrial:10/12ns(max.)

◆

Sleep Mode Inputs on both ports

RapidWrite Mode simplifies high-speed consecutive write

cycles

Supports JTAG features compliant to IEEE 1149.1

Single 2.5V (±100mV) power supply for core

LVTTL-compatible, selectable 3.3V (±150mV)/2.5V (±100mV)

power supply for I/Os and control signals on each port

Available in a 256-ball Ball Grid Array, 208-pin Plastic Quad

Flatpack and 208-ball fine pitch Ball Grid Array.

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

for selected speeds

Dual chip enables allow for depth expansion without

external logic

IDT70T651/9 easily expands data bus width to 72 bits or

more using the Master/Slave select when cascading more

than one device

◆

M/S = VIH for BUSY output flag on Master,

M/S = VIL for BUSY input on Slave

Busy and Interrupt Flags

Green parts available, see ordering information

Functional Block Diagram

BE3L

BE3R

BE2R

BE2L

BE1L

BE0L

BE1R

BE0R

B B B B B B B B

E E E E E E E E

3 2 1 0

R R R R

CE0L

CE1L

CE0R

CE1R

OEL

Dout0-8_L

Dout0-8_R

Dout9-17_L

Dout9-17_R

Dout18-26_R

Dout27-35_R

Dout18-26_L

Dout27-35_L

256/128K x 36

MEMORY

ARRAY

I/O0L- I/O35L

Di n_L

Di n_R

I/O0R -I/O35R

(1)

17R

(1)

17L

Address

Decoder

Address

Decoder

ADDR_L

ADDR_R

CE0L

CE1L

ARBITRATION

CE0R

CE1R

TDI

TCK

TMS

TRST

INTERRUPT

SEMAPHORE

LOGIC

JTAG

TDO

R/W

(2,3)

(3)

(2,3)

BUSY

SEM

M/S

SEM

(3)

INT

CONTROL

LOGIC

(4)

ZZR

ZZL

NOTES:

1. Address A17x is a NC for IDT70T659.

2. BUSY is an input as a Slave (M/S=VIL) and an output when it is a Master (M/S=VIH).

3. BUSY and INT are non-tri-state totem-pole outputs (push-pull).

4869 drw 01

4. The sleep mode pin shuts off all dynamic inputs, except JTAG inputs, when asserted. OPTx, INTx, M/S and the sleep

mode pins themselves (ZZx) are not affected during sleep mode.

JULY 2015

DSC-5632/8

12 3 4 5 6 7...28

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70T651S12BFG8	IDT	HIGH-SPEED 2.5V 256/128K x 36 ASYNCHRONOUS DUAL-PORT STATIC RAM	获取价格
70T651S12BFGI	IDT	HIGH-SPEED 2.5V 256/128K x 36 ASYNCHRONOUS DUAL-PORT STATIC RAM	获取价格
70T651S12BFGI8	IDT	HIGH-SPEED 2.5V 256/128K x 36 ASYNCHRONOUS DUAL-PORT STATIC RAM	获取价格
70T651S12DR	IDT	PQFP-208, Tray	获取价格
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