Product Summary

The RadiSys R400EX is a High-Integration Intel486 System Controller. It is a member of the RadiSys family of long-life em-bedded core logic. Designed specifically to support Intel486 processors, the R400EX is a true third-generation embedded chip set that addresses the functional needs of embedded app-lications, as well as their requirement for a long product life. The R400EX incorporates features needed for a PC-compatible embedded system design and provides a simple, lowcost, seamless interface to additional chips such as video controllers or PCMCIA controllers. RadiSys is committed to long-term support for the R400EX.

Parametrics

R400EX absolute maximum ratings: (1)case temperature under bias: -65 to 110 ℃; (2)storage temperature: -65 to 110 ℃; (3)supply voltage with respect to gound: -0.5 to VCC+0.5 V; (4)voltage on any pin: -0.5 to VCC+0.5 V.

Features

R400EX features: (1)Supports Intel486 CPUs including ULP486 SX; (2)EDO/FPM DRAM controller supports from 1MB to 128MB; (3)Supports L1 write-back cache; (4)Two integrated 16550-compatible UARTs; (5)Integrated real-time clock; (6)Enhanced IDE interface or DRAM parity support; (7)Keyboard and mouse controller; (8)Power management; (9)SMI support; (10)5V or 3.3V operation; (11)Complete PC-engine logic; (12)Supports seven PC-compatible DMA channels; (13)Supports fifteen PC-compatible ISAbus interrupts; (14)Integrated 8254-compatible timer/counter.

Diagrams

R400EX diagram

R4000
R4000

Rectron

Rectifiers HV Fst Rec Rct 200mA,4000V

Data Sheet

0-4000: $0.11
4000-8000: $0.11
R4000-B
R4000-B

Rectron

Rectifiers 200mA 4000V

Data Sheet

0-1000: $0.12
1000-2000: $0.11
R4000F
R4000F

Rectron

Rectifiers USE 583-R4000F-B

Data Sheet

Negotiable 
R4000-T
R4000-T

Rectron

Rectifiers 200mA 4000V

Data Sheet

0-4000: $0.20
4000-8000: $0.12
8000-12000: $0.12
12000-16000: $0.11
R4003-00
R4003-00

Harwin

Circuit Board Hardware - PCB M4 SPACER 3mm LENGTH

Data Sheet

Negotiable 
R4005-00
R4005-00

Harwin

Circuit Board Hardware - PCB M4 SPACER 5mm LENGTH

Data Sheet

Negotiable