參數(shù)資料
型號(hào)： IDT7015L20PFB
廠(chǎng)商： INTEGRATED DEVICE TECHNOLOGY INC
元件分類(lèi)： DRAM
英文描述： HIGH-SPEED 8K x 9 DUAL-PORT STATIC RAM
中文描述： 8K X 9 DUAL-PORT SRAM, 20 ns, PQFP80
封裝： TQFP-80
文件頁(yè)數(shù)： 1/20頁(yè)
文件大?。?/td> 263K
代理商： IDT7015L20PFB
FUNCTIONAL BLOCK DIAGRAM
Interrupt and Busy Flags
On-chip port arbitration logic
Full on-chip hardware support of semaphore signaling
between ports
Fully asynchronous operation from either port
Devices are capable of withstanding greater than 2001V
electrostatic discharge
TTL-compatible, single 5V (
±
10%) power supply
Available in ceramic 68-pin PGA, 68-pin PLCC, and an
80-pin TQFP
Industrial temperature range (–40
°
C to +85
°
C) is avail-
able, tested to military electrical specifications
DESCRIPTION:
The IDT7015 is a high-speed 8K x 9 Dual-Port Static
RAMs. The IDT7015 is designed to be used as stand-alone
Dual-Port RAM or as a combination MASTER/SLAVE Dual-
Port RAM for 18-bit-or-more word systems. Using the IDT
FEATURES:
True Dual-Ported memory cells which allow simulta-
neous access of the same memory location
High-speed access
— Military: 20/25/35ns (max.)
— Commercial: 12/15/17/20/25/35ns (max.)
Low-power operation
— IDT7015S
Active: 750mW (typ.)
Standby: 5mW (typ.)
— IDT7015L
Active: 750mW (typ.)
Standby: 1mW (typ.)
IDT7015 easily expands data bus width to 18 bits or
more using the Master/Slave select when cascading
more than one device
M/
S
= H for
BUSY
output flag on Master
M/
S
= L for
BUSY
input on Slave
Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
OCTOBER 1996
1996 Integrated Device Technology, Inc.
DSC-2954/2
HIGH-SPEED
8K x 9 DUAL-PORT
STATIC RAM
IDT7015S/L
NOTES:
1. In MASTER mode:
BUSY
is an output and is a push-pull driver
In SLAVE mode:
BUSY
is input.
2.
BUSY
outputs and
INT
outputs are non-tri-stated push-pull drivers.
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
6.12
1
I/O
Control
Address
Decoder
MEMORY
ARRAY
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
Address
Decoder
I/O
Control
R/
W
L
CE
L
OE
L
BUSY
L
A
12L
A
0L
2954 drw 01
I/O
0L
- I/O
8L
CE
L
OE
L
R/
W
L
SEM
L
INT
L
M/
S
BUSY
R
I/O
0R
-I/O
8R
A
12R
A
0R
SEM
INT
R
CE
R
OE
R
R/
W
R
(2)
(1,2)
(1,2)
R
R/
W
R
CE
R
OE
R
13
13
For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391.
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