IDT7008L IDT [Integrated Device Technology], IDT7008L Datasheet

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IDT7008L

Manufacturer Part Number
IDT7008L
Description
HIGH-SPEED 64K x 8 DUAL-PORT STATIC RAM
Manufacturer
IDT [Integrated Device Technology]
Datasheet

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©2000 Integrated Device Technology, Inc.
NOTES:
1. BUSY is an input as a Slave (M/S = V
2. BUSY and INT are non-tri-state totem-pole outputs (push-pull).
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
High-speed access
– Military: 25/35/55ns (max.)
– Industrial: 55ns (max.)
– Commercial: 20/25/35/55ns (max.)
Low-power operation
– IDT7008S
– IDT7008L
Dual chip enables allow for depth expansion without
external logic
Active: 750mW (typ.)
Standby: 5mW (typ.)
Active: 750mW (typ.)
Standby: 1mW (typ.)
BUSY
I/O
SEM
INT
A
0-7L
A
15L
0L
L
L
L
(1,2)
(2)
R/W
CE
CE
OE
0L
1L
L
L
Decoder
Address
R/W
CE
CE
IL
OE
) and an output when it is a Master (M/S = V
1L
0L
L
L
16
HIGH-SPEED
64K x 8 DUAL-PORT
STATIC RAM
Control
I/O
ARBITRATION
SEMAPHORE
INTERRUPT
MEMORY
ARRAY
LOGIC
64Kx8
7008
M/S
1
(1)
IDT7008 easily expands data bus width to 16 bits or
more using the Master/Slave select when cascading more
than one device
M/S = V
M/S = V
Interrupt Flag
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
TTL-compatible, single 5V (±10%) power supply
Available in 84-pin PGA, 84-pin PLCC, and a 100-pin TQFP
Industrial temperature range (–40°C to +85°C) is available
for selected speeds
IH
).
Control
I/O
IH
IL
for BUSY input on Slave
for BUSY output flag on Master,
16
Address
Decoder
CE
OE
R/W
CE
0R
1R
R
R
R/W
CE
CE
OE
3198 drw 01
IDT7008S/L
0R
1R
R
R
I/O
BUSY
A
A
SEM
INT
15R
0R
0-7R
R
R
(2)
R
DSC 3198/6
(1,2)

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IDT7008L Summary of contents

Page 1

... Military: 25/35/55ns (max.) – Industrial: 55ns (max.) – Commercial: 20/25/35/55ns (max.) Low-power operation – IDT7008S Active: 750mW (typ.) Standby: 5mW (typ.) – IDT7008L Active: 750mW (typ.) Standby: 1mW (typ.) Dual chip enables allow for depth expansion without external logic R ...

Page 2

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM The IDT7008 is a high-speed 64K x 8 Dual-Port Static RAM. The IDT7008 is designed to be used as a stand-alone 512K-bit Dual-Port RAM combination MASTER/SLAVE Dual-Port RAM for ...

Page 3

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Index 100 ...

Page 4

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM BUSY INT ...

Page 5

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM < 0.2V >V -0. >V -0. <0.2V NOTES: 1. Chip Enable ...

Page 6

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Symbol Rating Commercial & Industrial (2) V Terminal Voltage -0.5 to +7.0 TERM with Respect to GND T Temperature -55 to +125 BIAS Under Bias Storage -65 to +150 T STG Temperature ...

Page 7

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Symbol Parameter I Dynamic Operating CC Current (Both Ports Active) I Standby Current SB1 (Both Ports - TTL Level Inputs) I Standby Current SB2 (One Port - TTL Level Inputs) I Full ...

Page 8

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Input Pulse Levels Input Rise/Fall Times Input Timing Reference Levels Output Reference Levels Output Load ADDR ( R/W DATA OUT BUSY OUT ( NOTES: 1. ...

Page 9

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Symbol Parameter READ CYCLE t Read Cycle Time RC t Address Access Time AA (4) t Chip Enable Access Time ACE t Output Enable Access Time AOE t Output Hold from Address ...

Page 10

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM ADDRESS OE (9,10 SEM ( R/W DATA (4) OUT DATA IN ADDRESS (9,10 SEM ( R/W DATA IN NOTES must ...

Page 11

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM VALID ADDRESS SEM DATA R/W OE NOTES for the duration of the above timing (both write and read cycle) (Refer to ...

Page 12

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Symbol Parameter BUSY TIMING (M/S BUSY Access Time from Address Match t BAA BUSY Disable Time from Address Not Matched t BDA BUSY Access Time from Chip Enable Low t ...

Page 13

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM ADDR "A" "A" DATA IN "A" (1) t APS ADDR "B" BUSY "B" DATA OUT "B" NOTES ensure that the earlier of the two ports wins ...

Page 14

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM BUSY ADDR "A" and "B" CE "A" (2) t APS CE "B" BUSY "B" BUSY S ADDR "A" t APS ADDR "B" BUSY "B" NOTES: 1. All timing is the same for ...

Page 15

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM ADDR "A" "A" R/W "A" INT "B" ADDR "B" CE "B" OE "B" INT "B" NOTES: 1. All timing is the same for left and right ports. Port “A” ...

Page 16

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Inputs Outputs 15L CE CE BUSY ( 15R MATCH MATCH MATCH ...

Page 17

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM Busy Logic provides a hardware indication that both ports of the RAM have accessed the same location at the same time. It also allows one of the two accesses to proceed and ...

Page 18

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM the set and test sequence. Once the right side has relinquished the token, the left side should succeed in gaining control. The semaphore flags are active LOW. A token is requested by ...

Page 19

IDT7008S/L High-Speed 64K x 8 Dual-Port Static RAM IDT XXXXX A 999 Device Power Speed Type NOTE: 1. Industrial temperature range is available on selected TQFP packages in standard power. For other speeds, packages and powers contact your sales office. ...

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