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CS82C37A Datasheet

  • CS82C37A

  • CMOS High Performance Programmable DMA Controller

  • 24頁

  • INTERSIL   INTERSIL

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82C37A
March 1997
CMOS High Performance
Programmable DMA Controller
Description
The 82C37A is an enhanced version of the industry standard
8237A Direct Memory Access (DMA) controller, fabricated
using Intersil鈥檚 advanced 2 micron CMOS process. Pin
compatible with NMOS designs, the 82C37A offers
increased functionality, improved performance, and
dramatically reduced power consumption. The fully static
design permits gated clock operation for even further
reduction of power.
The 82C37A controller can improve system performance by
allowing external devices to transfer data directly to or from
system memory. Memory-to-memory transfer capability is
also provided, along with a memory block initialization fea-
ture. DMA requests may be generated by either hardware or
software, and each channel is independently programmable
with a variety of features for 鏗俥xible operation.
The 82C37A is designed to be used with an external
address latch, such as the 82C82, to demultiplex the most
signi鏗乧ant 8-bits of address. The 82C37A can be used with
industry standard microprocessors such as 80C286, 80286,
80C86, 80C88, 8086, 8088, 8085, Z80, NSC800, 80186 and
others. Multimode programmability allows the user to select
from three basic types of DMA services, and recon鏗乬uration
under program control is possible even with the clock to the
controller stopped. Each channel has a full 64K address and
word count range, and may be programmed to autoinitialize
these registers following DMA termination (end of process).
Features
鈥?Compatible with the NMOS 8237A
鈥?Four Independent Maskable Channels with Autoinitial-
ization Capability
鈥?Cascadable to any Number of Channels
鈥?High Speed Data Transfers:
- Up to 4MBytes/sec with 8MHz Clock
- Up to 6.25MBytes/sec with 12.5MHz Clock
鈥?Memory-to-Memory Transfers
鈥?Static CMOS Design Permits Low Power Operation
- ICCSB = 10碌A(chǔ) Maximum
- ICCOP = 2mA/MHz Maximum
鈥?Fully TTL/CMOS Compatible
鈥?Internal Registers may be Read from Software
Ordering Information
PART NUMBER
5MHz
CP82C37A-5
IP82C37A-5
CS82C37A-5
IS82C37A-5
CD82C37A-5
ID82C37A-5
MD82C37A-5/B
5962-9054301MQA
MR82C37A-5/B
5962-9054301MXA
8MHz
CP82C37A
IP82C37A
CS82C37A
IS82C37A
CD82C37A
ID82C37A
MD82C37A/B
5962-9054302MQA
MR82C37A/B
5962-9054302MXA
12.5MHz
CP82C37A-12
IP82C37A-12
CS82C37A-12
IS82C37A-12
CD82C37A-12
ID82C37A-12
MD82C37A-12/B
5962-9054303MQA
MR82C37A-12/B
5962-9054303MXA
SMD#
44 Pad CLCC
SMD#
-55
o
C to +125
o
C
40 Ld CERDIP
44 Ld PLCC
PACKAGE
40 Ld PDIP
TEMPERATURE
RANGE
0
o
C to +70
o
C
-40
o
C to +85
o
C
0
o
C to +70
o
C
-40
o
C to +85
o
C
0
o
C to +70
o
C
-40
o
C to +85
o
C
-55
o
C to +125
o
C
PKG. NO.
E40.6
E40.6
N44.65
N44.65
F40.6
F40.6
F40.6
F40.6
J44.A
J44.A
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
http://www.intersil.com or 407-727-9207
|
Copyright
漏
Intersil Corporation 1999
File Number
2967.1
4-192

CS82C37A 產(chǎn)品屬性

  • 260

  • 集成電路 (IC)

  • PMIC - 電源控制器，監(jiān)視器

  • -

  • CMOS DMA 控制器

  • -

  • 4.5 V ~ 5.5 V

  • 2mA

  • 0°C ~ 70°C

  • 表面貼裝

  • 44-LCC（J 形引線）

  • 44-PLCC

  • 管件

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