SL811S Cypress Semiconductor Corp, SL811S Datasheet - Page 24

• Manufacturer Part Number: SL811S
• Description: IC USB SLAVE CTRLR 28PLCC
• Manufacturer: Cypress Semiconductor Corp

Specifications of SL811S

• Applications: USB Host/Slave Controller
• Controller Series: USB-Hosts
• Ram Size: 256 x 8
• Interface: USB
• Number Of I /o: 8
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 65°C
• Mounting Type: Surface Mount
• Package / Case: 28-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Core Processor: -
• Program Memory Type: -
• Other names: 428-1460

7.5.3
Note: nWR must go low after nDACK goes low in order for nDRQ to clear. If this sequence is not implemented as requested, the
next nDRQ will be not inserted.
Document #: 38-08009 Rev. **
tdack
tdwrlo
tdakrq
tdwrp
tdhld
tdsu
tackrq
tackwrh
twrcycle
Parameter
n D A C K
SL811S DMA Write Cycle
nD R Q
D 0-D 7
nW R
nDACK low
nDACK to nWR low delay
nDACK low to nDRQ high delay
nWR pulse width
Data hold after nWR high
Data set-up to nWR strobe low
NDACK high to nDRQ low
NDACK high to nDRQ low
DMA Write Cycle Time
Description
tdsu
tdakrq
150 ns
tdw rlo
65 ns
80ns
60 ns
Min.
5 ns
5 ns
5 ns
5 ns
5 ns
tdack
tdw rp
D A TA
tackrq
Typ.
tdhld
tackw rh
SL811S/T
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