參數(shù)資料
型號(hào): IDT7034S20PF
廠商: INTEGRATED DEVICE TECHNOLOGY INC
元件分類: DRAM
英文描述: HIGH-SPEED 4K x 18 DUAL-PORT STATIC RAM
中文描述: 4K X 18 DUAL-PORT SRAM, 20 ns, PQFP100
封裝: 14 X 14 MM, 1.40 MM HEIGHT, TQFP-100
文件頁(yè)數(shù): 1/19頁(yè)
文件大?。?/td> 200K
代理商: IDT7034S20PF
1999 Integrated Device Technology, Inc.
SEPTEMBER 1999
DSC 4089/6
1
IDT7034S/L
HIGH-SPEED
4K x 18 DUAL-PORT
STATIC RAM
Features:
N
True Dual-Ported memory cells which allow simultaneous
reads of the same memory location
N
High-speed access
Commercial: 15/20ns (max.)
N
Low-power operation
IDT7034S
Active: 850mW (typ.)
Standby: 5mW (typ.)
IDT7034L
Active: 850mW (typ.)
Standby: 1mW (typ.)
N
Separate upper-byte and lower-byte control for multiplexed
bus compatibility
N
IDT7034 easily expands data bus width to 36 bits or more
using the Master/Slave select when cascading more than
one device
N
M/
S
= H for
BUSY
output flag on Master
M/
S
= L for
BUSY
input on Slave
N
Interrupt Flag
N
On-chip port arbitration logic
N
Full on-chip hardware support of semaphore signaling
between ports
N
Fully asynchronous operation from either port
N
Battery backup operation2V data retention
N
TTL-compatible, single 5V (±10%) power supply
N
Available in 100-pin Thin Quad Flatpack
N
Industrial temperature range (40°C to +85°C) is available
for selected speeds
Functional Block Diagram
NOTES:
1. (MASTER):
BUSY
is output; (SLAVE):
BUSY
is input.
2.
BUSY
outputs and
INT
outputs are non-tri-stated push-pull.
I/O
Control
Address
Decoder
MEMORY
ARRAY
ARBITRATION
INTERRUPT
SEMAPHORE
LOGIC
Address
Decoder
I/O
Control
R/
W
L
UB
L
BUSY
L
A
11L
A
0L
4089 drw 01
LB
L
CE
L
OE
L
I/O
9L
-I/O
17L
I/O
0L
-I/O
8L
CE
L
OE
L
R/
W
L
SEM
L
INT
L
M/
S
R/
W
R
UB
R
BUSY
R
LB
R
CE
R
OE
R
I/O
9R
-I/O
17R
I/O
0R
-I/O
8R
A
11R
A
0R
R/
W
R
SEM
R
INT
R
CE
R
OE
R
(2)
(1,2)
(1,2)
(2)
13
13
.
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