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XA-G3 Datasheet, PDF (28/36 Pages) NXP Semiconductors – XA 16-bit microcontroller family 32K/512 OTP/ROM/ROMless, watchdog, 2 UARTs | |||
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Philips Semiconductors
XA 16-bit microcontroller family
32K/512 OTP/ROM/ROMless, watchdog, 2 UARTs
Product specification
XA-G3
ALE
tLLWL
tWLWH
WRL or WRH
MULTIPLEXED
ADDRESS
AND DATA
UNMULTIPLEXED
ADDRESS
tAVLL
tLLAX tQVWX
A4âA11 or A4âA15
tAVWL
DATA OUT *
A0 or A1âA3, A12âA19
tWHQX
tUAWH
* DATA OUT is either D0âD7 or D0âD15, depending on the bus width (8 or 16 bits).
Figure 20. External Data Memory Write Cycle
XTAL1
ALE
tCRAR
ADDRESS BUS
SU00584C
WAIT
BUS STROBE
(WRL, WRH,
RD, OR PSEN)
tWTH
tWTL
(The dashed line shows the strobe without WAIT.)
Figure 21. WAIT Signal Timing
SU00709A
1999 Apr 07
28
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