DMA CONTROLLER. 82C37 Datasheet

82C37 Datasheet PDF, Equivalent


Part Number

82C37

Description

PROGRAMMABLE DMA CONTROLLER

Manufacture

OKI electronic componets

Total Page 30 Pages
PDF Download
Download 82C37 Datasheet


82C37 Datasheet
E2O0016-39-81
¡¡SemicondSucetormiconductor
MSTMhis82vCer3s7ioBn-:5RASu/gG. S19/9V9JS
Previous version: Jan. 1998
MSM82C37B-5RS/GS/VJS
PROGRAMMABLE DMA CONTROLLER
GENERAL DESCRIPTION
The MSM82C37B-5RS/GS/VJS, DMA (Direct Memory Access) controller is capable of high-
speed data transfer without CPU intervention and is used as a peripheral device in microcomputer
systems. The device features four independent programmable DMA channels.
Due to the use of silicon gate CMOS technology, standby current is 10 mA (max.), and power
consumption is as low as 10 mA (max.) when a 5 MHz clock is generated.
All items of AC characteristics are compatible with intel 8237A-5.
FEATURES
• Maximum operating frequency of 5 MHz (Vcc = 5 V ±10%)
• High-speed operation at very low power consumption due to silicon gate CMOS technology
• Wide operating temperature range from –40°C to +85°C
• 4-channels independent DMA control
• DMA request masking and programming
• DMA request priority function
• DREQ and DACK input/output logic inversion
• DMA address increment/decrement selection
• Memory-to-Memory Transfers
• Channel extension by cascade connection
• DMA transfer termination by EOP input
• Intel 8237A-5 compatibility
• TTL Compatible
• 40-pin Plastic DIP (DIP40-P-600-2.54): (Product name: MSM82C37B-5RS)
• 44-pin Plastic QFJ (QFJ44-P-S650-1.27): (Product name: MSM82C37B-5VJS)
• 44-pin Plastic QFP (QFP44-P-910-0.80-2K): (Product name: MSM82C37B-5GS-2K)
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82C37 Datasheet
¡ Semiconductor
MSM82C37B-5RS/GS/VJS
PIN CONFIGURATION (TOP VIEW)
44 pin Plastic QFP
READY 1
HLDA 2
ADSTB 3
AEN 4
HRQ 5
NC 6
CS 7
CLK 8
RESET 9
DACK2 10
DACK3 11
33 A3
32 A2
31 A1
30 A0
29 VCC
28 NC
27 DB0
26 DB1
25 DB2
24 DB3
23 DB4
40 pin Plastic DIP
IOR 1
IOW 2
MEMR 3
MEMW 4
NC 5
READY 6
HLDA 7
ADSTB 8
AEN 9
HRQ 10
CS 11
CLK 12
RESET 13
DACK2 14
DACK3 15
DREQ3 16
DREQ2 17
DREQ1 18
DREQ0 19
GND 20
40 A7
39 A6
38 A5
37 A4
36 EOP
35 A3
34 A2
33 A1
32 A0
31 VCC (+5 V)
30 DB0
29 DB1
28 DB2
27 DB3
26 DB4
25 DACK0
24 DACK1
23 DB5
22 DB6
21 DB7
44 pin Plastic QFJ
NC 7
READY 8
HLDA 9
ADSTB 10
AEN 11
HRQ 12
CS 13
CLK 14
RESET 15
DACK2 16
NC 17
39 NC
38 A3
37 A2
36 A1
35 A0
34 VCC
33 DB0
32 DB1
31 DB2
30 DB3
29 DB4
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Features Datasheet pdf E2O0016-39-81 ¡ Semiconductor MSM82C37 B-5RS/GS/VJS ¡ Semiconductor PROGRAMMA BLE DMA CONTROLLER This version: Aug. 1999 MSM82C37B-5RS/GS/VJS Previous vers ion: Jan. 1998 GENERAL DESCRIPTION The MSM82C37B-5RS/GS/VJS, DMA (Direct Memo ry Access) controller is capable of hig hspeed data transfer without CPU interv ention and is used as a peripheral devi ce in microcomputer systems. The device features four independent programmable DMA channels. Due to the use of silico n gate CMOS technology, standby current is 10 mA (max.), and power consumption is as low as 10 mA (max.) when a 5 MHz clock is generated. All items of AC ch aracteristics are compatible with intel 8237A-5. FEATURES • Maximum operati ng frequency of 5 MHz (Vcc = 5 V ± 10% ) • High-speed operation at very low power consumption due to silicon gate C MOS technology • Wide operating tempe rature range from –40°C to +85°C 4-channels independent DMA control DMA request masking and programming • DMA request priority function • DREQ and.
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