IDT70V28L20PF datasheet, PDF - EEWORLD Datasheet

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IDT70V28L20PF: Description64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100; Categorystorage; File Size153KB，17 Pages; ManufacturerIDT (Integrated Device Technology, Inc.); Websitehttp://www.idt.com/

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IDT70V28L20PF Overview

64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100

IDT70V28L20PF Parametric

Parameter Name	Attribute value
Number of functions	1
Number of terminals	100
Maximum operating temperature	85 Cel
Minimum operating temperature	-40 Cel
Maximum supply/operating voltage	3.6 V
Minimum supply/operating voltage	3 V
Rated supply voltage	3.3 V
maximum access time	20 ns
Processing package description	14 × 14 MM, 1.40 MM HEIGHT, TQFP-100
state	ACTIVE
Craftsmanship	CMOS
packaging shape	SQUARE
Package Size	FLATPACK, LOW PROFILE, FINE PITCH
surface mount	Yes
Terminal form	GULL WING
Terminal spacing	0.5000 mm
terminal coating	tin lead
Terminal location	Four
Packaging Materials	Plastic/Epoxy
Temperature level	INDUSTRIAL
memory width	16
organize	64K × 16
storage density	1.05E6 deg
operating mode	ASYNCHRONOUS
Number of digits	65536 words
Number of digits	64K
Memory IC type	dual-port static random access memory
serial parallel	parallel

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HIGH-SPEED 3.3V

64K x 16 DUAL-PORT

STATIC RAM

.eatures

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

IDT70V28L

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

.unctional Block Diagram

I/O

8-15L

I/O

0-7L

BUSY

(1,2)

15L

64Kx16

MEMORY

ARRAY

70V28

I/O

8-15R

I/O

Control

I/O

Control

I/O

0-7R

BUSY

15R

(1,2)

Address

Decoder

Address

Decoder

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)

JANUARY 2002

DSC-4849/3

IDT70V28L20PF Related Products

	IDT70V28L20PF	IDT70V28L	IDT70V28L15PF	IDT70V28L15PFI	IDT70V28L20PFI
Description	64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100	64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100	64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100	64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100	64K X 16 DUAL-PORT SRAM, 20 ns, PQFP100
Number of functions	1	1	1	1	1
Number of terminals	100	100	100	100	100
Maximum operating temperature	85 Cel	85 Cel	85 Cel	85 Cel	85 Cel
Minimum operating temperature	-40 Cel	-40 Cel	-40 Cel	-40 Cel	-40 Cel
Maximum supply/operating voltage	3.6 V	3.6 V	3.6 V	3.6 V	3.6 V
Minimum supply/operating voltage	3 V	3 V	3 V	3 V	3 V
Rated supply voltage	3.3 V	3.3 V	3.3 V	3.3 V	3.3 V
maximum access time	20 ns	20 ns	20 ns	20 ns	20 ns
Processing package description	14 × 14 MM, 1.40 MM HEIGHT, TQFP-100	14 × 14 MM, 1.40 MM HEIGHT, TQFP-100	14 × 14 MM, 1.40 MM HEIGHT, TQFP-100	14 × 14 MM, 1.40 MM HEIGHT, TQFP-100	14 × 14 MM, 1.40 MM HEIGHT, TQFP-100
state	ACTIVE	ACTIVE	ACTIVE	ACTIVE	ACTIVE
Craftsmanship	CMOS	CMOS	CMOS	CMOS	CMOS
packaging shape	SQUARE	SQUARE	SQUARE	SQUARE	SQUARE
Package Size	FLATPACK, LOW PROFILE, FINE PITCH	FLATPACK, LOW PROFILE, FINE PITCH	FLATPACK, LOW PROFILE, FINE PITCH	FLATPACK, LOW PROFILE, FINE PITCH	FLATPACK, LOW PROFILE, FINE PITCH
surface mount	Yes	Yes	Yes	Yes	Yes
Terminal form	GULL WING	GULL WING	GULL WING	GULL WING	GULL WING
Terminal spacing	0.5000 mm	0.5000 mm	0.5000 mm	0.5000 mm	0.5000 mm
terminal coating	tin lead	tin lead	tin lead	tin lead	tin lead
Terminal location	Four	Four	Four	Four	Four
Packaging Materials	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy	Plastic/Epoxy
Temperature level	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL	INDUSTRIAL
memory width	16	16	16	16	16
organize	64K × 16	64K × 16	64K × 16	64K × 16	64K × 16
storage density	1.05E6 deg	1.05E6 deg	1.05E6 deg	1.05E6 deg	1.05E6 deg
operating mode	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS	ASYNCHRONOUS
Memory IC type	dual-port static random access memory	dual-port static random access memory	dual-port static random access memory	dual-port static random access memory	dual-port static random access memory
serial parallel	parallel	parallel	parallel	parallel	parallel
Number of digits	64K	64K	64K	64K	64K

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