SAB82525NV22XT Infineon Technologies, SAB82525NV22XT Datasheet - Page 19
SAB82525NV22XT
Manufacturer Part Number
SAB82525NV22XT
Description
Manufacturer
Infineon Technologies
Datasheet
1.SAB82525NV22XT.pdf
(126 pages)
Specifications of SAB82525NV22XT
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.75V
Operating Supply Voltage (max)
5.25V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
44
Lead Free Status / RoHS Status
Compliant
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HSCX with SAB 80188 Microprocessor
A system with minimized additional hardware expense can be with a SAB 80188
microprocessor as shown in figure 4.
Figure 4
HSCX with SAB 80188 CPU
The HSCX is connected to the demultiplexed system bus. Data transfer for one serial channel
can be done by the 2-channel on-chip DMA controller of the SAB 80188, the other channel is
serviced by interrupt. Since the SAB 80188 does not provide DMA acknowledge outputs, data
transfer from/to HSCX is controlled via CS, RD or WR address information (A0 … A6) and the
DACKA, DACKB inputs are not used.
This solution supports applications with a high speed data rate in one serial channel with
minimum hardware expense making use of the on-chip peripheral functions of the SAB 80188
(chip select logic, interrupt controller, DMA controller).
Semiconductor Group
Latches
SAB 80188
CPU
INTn
A8 - A15
AD0 - AD7
PSCn
Transceiver
DRQ0
DRQ1
+5 V
System Bus
Memory
System
19
DRQTA
DRQRA
DACKA
ALE
DACKB
A0-A6
A0 - A6
CS
SAB 82525
HSCX
+5 V
INT
D0 - D7
D0-D7
IM1
Serial
Channel A
Serial
Channel B
ITS00949
SAB
SAB
SAF
SAF
82525
82526
82525
82526
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