70V28L20PF8 datasheet, PDF - EEWORLD Datasheet

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70V28L20PF8: DescriptionSRAM 32Kx16 3.3V DUAL- PORT RAM; Categorystorage; File Size651KB，18 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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70V28L20PF8 Overview

SRAM 32Kx16 3.3V DUAL- PORT RAM

70V28L20PF8 Parametric

Parameter Name	Attribute value
Product Category	SRAM
Manufacturer	IDT (Integrated Device Technology, Inc.)
RoHS	No
Memory Size	1 Mbit
Organization	64 k x 16
Access Time	20 ns
Interface Type	Parallel
Supply Voltage - Max	3.6 V
Supply Voltage - Min	3 V
Supply Current - Max	205 mA
Minimum Operating Temperature	0 C
Maximum Operating Temperature	+ 70 C
Mounting Style	SMD/SMT
Package / Case	TQFP-100
Packaging	Reel
Height	1.4 mm
Length	14 mm
Memory Type	SDR
Moisture Sensitive	Yes
Operating Temperature Range	0 C to + 70 C
Factory Pack Quantity	750
Type	Asynchronous
Width	14 mm
Unit Weight	0.023175 oz

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HIGH-SPEED 3.3V

64K x 16 DUAL-PORT

STATIC RAM

Features

IDT70V28L

◆

True Dual-Ported memory cells which allow simultaneous

access of the same memory location

High-speed access

– Commercial: 15/20ns (max.)

– Industrial: 20ns (max.)

Low-power operation

– IDT70V28L

Active: 440mW (typ.)

Standby: 660µW (typ.)

Dual chip enables allow for depth expansion without

external logic

IDT70V28 easily expands data bus width to 32 bits or

more using the Master/Slave select when cascading more

than one device

◆

M/S = V

for

BUSY

output flag on Master,

M/S = V

for

BUSY

input on Slave

Busy and Interrupt Flags

On-chip port arbitration logic

Full on-chip hardware support of semaphore signaling

between ports

Fully asynchronous operation from either port

Separate upper-byte and lower-byte controls for multi-

plexed bus and bus matching compatibility

LVTTL-compatible, single 3.3V (±0.3V) power supply

Available in a 100-pin TQFP

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

for selected speeds

Green parts available, see ordering information

Functional Block Diagram

I/O

8-15L

I/O

0-7L

BUSY

15L

(1,2)

I/O

8-15R

I/O

Control

I/O

Control

I/O

0-7R

BUSY

64Kx16

MEMORY

ARRAY

70V28

(1,2)

Address

Decoder

Address

Decoder

15R

R/W

SEM

ARBITRATION

INTERRUPT

SEMAPHORE

LOGIC

R/W

SEM

(2)

INT

4849 drw 01

M/S

NOTES:

BUSY

is an input as a Slave (M/S=V

) and an output when it is a Master (M/S=V

BUSY

and

INT

are non-tri-state totem-pole outputs (push-pull).

INT

(2)

(1)

APRIL 2015

DSC-4849/6

70V28L20PF8 Related Products

	70V28L20PF8	70V28L20PFG8	70V28L15PFG	70V28L20PFI	70V28L20PF	70V28L20PFGI8
Description	SRAM 32Kx16 3.3V DUAL- PORT RAM	SRAM 32Kx16 3.3V DUAL- PORT RAM	Power Switch ICs - Power Distribution	SRAM 32Kx16 3.3V DUAL- PORT RAM	Crystals 32.768KHz 12.5pF	SRAM 32Kx16 3.3V DUAL- PORT RAM
Product Category	SRAM	SRAM	SRAM	SRAM	SRAM	SRAM
Manufacturer	IDT (Integrated Device Technology, Inc.)	IDT (Integrated Device Technology, Inc.)	IDT (Integrated Device Technology, Inc.)	IDT (Integrated Device Technology, Inc.)	IDT (Integrated Device Technology, Inc.)	IDT (Integrated Device Technology, Inc.)
RoHS	No	Details	Details	No	No	Details
Memory Size	1 Mbit	1 Mbit	1 Mbit	1 Mbit	1 Mbit	1 Mbit
Organization	64 k x 16	64 k x 16	64 k x 16	64 k x 16	64 k x 16	64 k x 16
Access Time	20 ns	20 ns	15 ns	20 ns	20 ns	20 ns
Interface Type	Parallel	Parallel	Parallel	Parallel	Parallel	Parallel
Supply Voltage - Max	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Supply Voltage - Min	3 V	3 V	3 V	3 V	3 V	3 V
Supply Current - Max	205 mA	205 mA	235 mA	220 mA	205 mA	220 mA
Minimum Operating Temperature	0 C	0 C	0 C	- 40 C	0 C	- 40 C
Maximum Operating Temperature	+ 70 C	+ 70 C	+ 70 C	+ 85 C	+ 70 C	+ 85 C
Mounting Style	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT	SMD/SMT
Package / Case	TQFP-100	TQFP-100	TQFP-100	TQFP-100	TQFP-100	TQFP-100
Packaging	Reel	Reel	Tray	Tray	Tray	Reel
Height	1.4 mm	1.4 mm	1.4 mm	1.4 mm	1.4 mm	1.4 mm
Length	14 mm	14 mm	14 mm	14 mm	14 mm	14 mm
Memory Type	SDR	SDR	SDR	SDR	SDR	SDR
Moisture Sensitive	Yes	Yes	Yes	Yes	Yes	Yes
Operating Temperature Range	0 C to + 70 C	0 C to + 70 C	0 C to + 70 C	- 40 C to + 85 C	0 C to + 70 C	- 40 C to + 85 C
Factory Pack Quantity	750	750	6	6	6	750
Type	Asynchronous	Asynchronous	Asynchronous	Asynchronous	Asynchronous	Asynchronous
Width	14 mm	14 mm	14 mm	14 mm	14 mm	14 mm
Unit Weight	0.023175 oz	0.023175 oz	0.023175 oz	0.023175 oz	0.023175 oz	0.023175 oz

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