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參數(shù)資料
| 型號(hào)： | IDT7132SA20PB |
| 廠商： | Integrated Device Technology, Inc. |
| 英文描述： | HIGH-SPEED 2K x 8 DUAL-PORT STATIC RAM |
| 中文描述： | 高速2K × 8雙端口靜態(tài)RAM |
| 文件頁(yè)數(shù)： | 1/11頁(yè) |
| 文件大小： | 175K |
| 代理商： | IDT7132SA20PB |
Integrated Device Technology, Inc.
MILITARY AND COMMERCIAL TEMPERATURE RANGES
OCTOBER 1996
1996 Integrated Device Technology, Inc.
DSC-2692/8
HIGH-SPEED
2K x 8 DUAL-PORT
STATIC RAM
IDT7132SA/LA
IDT7142SA/LA
FUNCTIONAL BLOCK DIAGRAM
The IDT logo is a registered trademark of Integrated Device Technology, Inc.
DESCRIPTION:
The IDT7132/IDT7142 are high-speed 2K x 8 Dual-Port
Static RAMs. The IDT7132 is designed to be used as a stand-
alone 8-bit Dual-Port RAM or as a “MASTER” Dual-Port RAM
together with the IDT7142 “SLAVE” Dual-Port in 16-bit-or-
more word width systems. Using the IDT MASTER/SLAVE
Dual-Port RAM approach in 16-or-more-bit memory system
applications results in full-speed, error-free operation without
the need for additional discrete logic.
Both devices provide two independent ports with separate
control, address, and l/O pins that permit independent, asyn-
chronous access for reads or writes to any location in memory.
An automatic power down feature, controlled by
CE
permits
the on-chip circuitry of each port to enter a very low standby
power mode.
Fabricated using IDT’s CMOS high-performance technol-
ogy, these devices typically operate on only 550mW of power.
Low-power (LA) versions offer battery backup data retention
capability, with each Dual-Port typically consuming 200
μ
W
from a 2V battery.
The IDT7132/7142 devices are packaged in a 48-pin
sidebraze or plastic DIPs, 48-pin LCCs, 52-pin PLCCs, and
48-lead flatpacks. Military grade product is manufactured in
compliance with the latest revision of MIL-STD-883, Class B,
making it ideally suited to military temperature applications
demanding the highest level of performance and reliability.
FEATURES:
High-speed access
— Military: 25/35/55/100ns (max.)
— Commercial: 25/35/55/100ns (max.)
— Commercial: 20ns only in PLCC for 7132
Low-power operation
— IDT7132/42SA
Active: 550mW (typ.)
Standby: 5mW (typ.)
— IDT7132/42LA
Active: 550mW (typ.)
Standby: 1mW (typ.)
Fully asynchronous operation from either port
MASTER IDT7132 easily expands data bus width to 16-or-
more bits using SLAVE IDT7142
On-chip port arbitration logic (IDT7132 only)
BUSY
output flag on IDT7132;
BUSY
input on IDT7142
Battery backup operation —2V data retention
TTL-compatible, single 5V
±
10% power supply
Available in popular hermetic and plastic packages
Military product compliant to MIL-STD, Class B
Standard Military Drawing # 5962-87002
Industrial temperature range (–40
°
C to +85
°
C) is available,
tested to miliary electrical specifications
NOTES:
1. IDT7132 (MASTER):
BUSY
is open
drain output and requires pullup
resistor of 270
.
IDT7142 (SLAVE):
BUSY
is input.
2. Open drain output: requires pullup
resistor of 270
.
I/O
Control
Address
Decoder
MEMORY
ARRAY
ARBITRATION
LOGIC
Address
Decoder
I/O
Control
R/
W
L
CE
L
OE
L
BUSY
L
A
10L
A
0L
2692 drw 01
I/O
0L
- I/O
7L
CE
L
BUSY
R
I/O
0R
-I/O
7R
A
10R
A
0R
CE
R
(1,2)
(1,2)
R/
W
R
CE
R
OE
R
11
11
For latest information contact IDT’s web site at www.idt.com or fax-on-demand at 408-492-8391.
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