ISP1183BS STEricsson, ISP1183BS Datasheet - Page 50

• Manufacturer Part Number: ISP1183BS
• Manufacturer: STEricsson

Specifications of ISP1183BS

• Lead Free Status / RoHS Status: Supplier Unconfirmed

Table 57.
V
ISP1183_3
Product data sheet
Symbol
8237 compatible mode (see
t
T
Read in DACK-only mode (see
t
t
t
t
t
Write in DACK-only mode (see
t
t
t
t
ASRP
ASRP
ASAP
ASAP
ASDV
APDZ
ASRP
ASAP
DVAP
APDZ
BUS
Fig 19. DMA timing in 8237 compatible mode
cy(DREQ)
= V
+ t
+ t
APRS
APRS
REG(3V3)
DREQ
DACK
Dynamic characteristics: single-cycle DMA timing
16.1.3 DMA timing: single-cycle mode
= 2.7 V to 3.9 V; V
Parameter
DREQ off after DACK on
cycle time signal DREQ
DREQ off after DACK on
DACK pulse width
DREQ on after DACK off
data valid after DACK on
data hold after DACK off
DREQ off after DACK on
DREQ on after DACK off
data setup before DACK off
data hold after DACK off
Fig 18. Read data + write command cycle timing
WR_N
RD_N
DATA
CS_N
(1) Example: read data.
Figure
Figure
Figure
DD(I/O)
19)
20)
21)
= 1.8 V; unless otherwise specified.
data
Rev. 03 — 20 January 2009
t
ASRP
Conditions
T
cy(DREQ)
T
cy(RD-WC)
Low-power USB Peripheral Controller with DMA
command
Min
25
90
-
-
90
5
3
-
90
-
-
Typ
© ST-NXP Wireless 2009. All rights reserved.
Max
40
40
-
-
22
3
40
-
-
-
-
(1)
data
ISP1183
004aaa429
004aaa428
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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